Dynacord Stereo System DMM 4650 User Manual

OWNER’S MANUAL  
DMM 4650  
Description  
The DMM 4650 is a signal processor which allows for an universal generation and control of audio signals.  
Its main purpose is the installation in electro-acoustic rack systems, but stand-alone applications are  
possible as well. The audio signals can consist of alarm, gong, voice messages but also of random  
combinations of these sources. The programs were created by Dynacord (preset). Anyway, it is possible  
for the user (consulting company, etc.) to modify those programs and store them as user-programs. The  
audio input can be mixed with the DMM 4650 internally generated audio signals (e.g. gong signals with  
announcements), or given out as priority at the audio output (programmable).  
The audio quality of the messages can be selected, depending on memory extension and different user  
requirements. With maximum memory extension, a total recording time of 16 minutes is possible.  
Password protection for various operation levels is provided. For “EASY-USER”, the provided operation  
features are similar to those known from cassette recorders or CD players. The control of the programs  
is performed via floating inputs and floating outputs provide status messages. The priorities and functions  
of these lines can be programmed individually (Setup). A computer interface facilitates saving and loading  
of the unit’s configuration and its message data.  
In order to ensure functional reliability, self-surveillance and audio data verification are employed. The  
alarm is ignited via internal fault-output while all warnings are logged. The DMM 4650 is maintenance-free  
since no serviceable parts, batteries or accumulators are to be found inside the appliance.  
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TRIGGER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
Operation menu trigger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
Trigger detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22  
Examples trigger adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22  
SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Sequence Presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Operation menu sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Priority. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Stop trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Step list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Title . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
Save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
Sequence example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
List of available step functions in a sequence . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Operation menu settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Contrast. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Priority. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26  
Sum gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Init DMM 4650. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Format Flash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Flash space. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27  
Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
RS 232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
SELF-TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  
Operation menu self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  
CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
Control inputs and control outputs Port A - D. . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
Control levels and currents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Installation example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Audio inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32  
Remote, RS 232 connection, data backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
Connection REMOTE/RS 232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
Interface settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
Backup, Restore commands, priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
List of REMOTE commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34  
Terminal programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34  
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FACTORY PRESETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36  
Factory presets, defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36  
List of trigger signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36  
List of factory preset sequences. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37  
List of factory preset gong signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45  
List of factory preset alarm signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46  
APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47  
FAQ’s, hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48  
Examples for alarm texts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50  
Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51  
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53  
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54  
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Installation instructions  
The appliance has to be protected against:  
- drip or splash water  
- direct sunlight  
- high ambient temperature or direct influence of heat sources  
- high humidity  
- heavy dust deposits  
- extreme vibrations  
In case the appliance is transported directly from a cold environment to a warm location, dampness can  
precipitate on the inner parts. Operating the device is only admissible after waiting for approximately one  
hour until the aparatus has gained the ambient temperature.  
Should objects or liquids get into the enclosure, disconnect the unit from the mains immediately and have  
the appliance checked by a DYNACORD service center, before further use.  
Do not use any sprays to clean the unit, because they could lead to severe damage and/or perhaps cause  
sudden fire hazard.  
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FRONT PANEL  
1. INPUT MIC  
7. RECORDER  
XLR-socket for the connection of a microphone when Keys for …  
recording a message. By using a short test-sample, the  
TITLE skip back, REWIND, PLAY/STOP, REC, FAST  
FORWARD, TITLE skip forward.  
level is automatically adjusted and the setting is saved.  
This input can also be used for making announcements.  
8. EXIT  
2. INPUT LINE  
Key for exiting the edit mode in order to prevent un-  
RCA-type sockets for the connection of stereo or authorized operation. Each pressing of the key switches  
monaural audio signal sources (tape deck, CD player) back one menu stage.  
when recording a message. A wired in parallel 0dBu  
socket on the rear panel is also provided. By using a  
9. POWER  
short test-sample, the level is automatically adjusted  
and the setting is saved.  
The LED lights whenever the DMM 4650 is ready for  
operation. In case the LED BLINKS you should contact  
a DYNACORD service center.  
This input can also be used for making announcements.  
3. PHONES  
Stereo phone jack 1/4" (6.3 mm) to pre-listen to messa-  
ges, gong and alarm signals via headphones. Wired in  
parallel, a 0dBu socket is provided on the rear panel.  
4. Multi-function Display  
Back-lit LC display, 2 lines with 16 characters, each.  
The display lights up by pressing any key.  
The display is dimmed whenever the EXIT-key gets  
pressed or no key is pressed for at all within a short  
while.  
5. SOFT KEY  
Depending on the selected operation mode, the soft  
keys are used in various ways. The according function  
is indicated on the display.  
6. CURSOR  
CURSOR-keys to control the cursor on the display and  
for modifying data.  
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REAR PANEL  
1O. 24 V DC power supply  
12. PORT A  
2 flat-pin plugs 1/4" (6.3 mm) for connection to emer- 4 control inputs and 4 trigger outputs  
gency power supply (battery) or other external power  
1 fault output (alarm on defect of the appliance)  
sources. Please mind the correct polarity (+-).  
1 ±24V DC, 90 mA power source  
11. REMOTE  
13. PORT B  
The 9-pole D-SUB connector “Remote-Control RS-232"  
Control inputs, trigger outputs and ±24 V DC  
is a serial computer interface for data transfer and  
service functions.  
14. PORT C  
PORT A-D  
Control inputs, trigger outputs and ±24 V DC  
* optionally retrofitted  
All inputs and outputs are provided in 2-pole floating  
design and isolated from the DMM 4650 circuitry and  
adjacent lines.  
15. PORT D  
Each input is realized as an AC opto-coupler (AC floa-  
ting polarity).  
Control inputs, trigger outputs and ±24 V DC  
* optionally retrofitted  
Each output has a floating relay contact.  
Each port connector (DB 25) has 4 inputs, 4 outputs,  
and per port +24 V line and ground potential conductors.  
16. PRE-OUT  
By means of the 24 V DC voltage, it is possible to  
connect external floating control keys as well as con-  
tacts directly.  
RCA-type socket, pre-listen  
All inputs and outputs and their corresponding functions  
can be freely assigned or a factory preset can be  
recalled instead.  
17. REC-INP  
RCA-type socket, recording, announcement  
18. OUTPUT  
3-pole XLR-type connector (audio output) electronically  
balanced (transformer can be retrofitted).  
19. INPUT  
3-pole XLR-type connector (audio input) electronically  
balanced (transformer can be retrofitted).  
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Use of the DMM 4650  
The DMM 4650 can be used in both, incorporated in a rack shelf system or as stand-alone unit. The  
installer should automate the daily sequences by external control keys, sensors, contacts and the  
corresponding unit settings. This applies for gongs, alarms, messages and their combinations, as well as  
for recordings of variable announcements. This contributes to a considerable advantage in the ease of  
use since manually operating the appliance is not necessary anymore.  
Often used functions of the DMM 4650 are directly implemented as factory presets and can be utilized  
without any additional programming effort. By editing the default values and storing them into a user preset  
a customer-optimized configuration is quickly developed.  
Audio function  
The audio signals of the electro-acoustic sound reinforcement system are looped via INPUT and OUTPUT  
to the power amplifier. The SUM control can be programmed for this stand-by position. In case of failure  
a stand-by relay takes over the connection. When starting a sequence via control line, the desired audio  
signal gets generated (DMM SIGNAL) and fed to the OUTPUT via the programmable DMM-control. The  
controls (DMM, SUM) defined within the sequence determine, whether the two audio signals are merged  
or the one gains priority over the other.  
The MIC, LINE input is used for recording a message and can also be used for announcement purposes.  
The headphones outputs PRE-LISTEN and PRE-OUT are for monitoring the DMM signals without actually  
starting a transmission.  
Control function  
A maximum of 16 floating inputs are provided for integration into a sound reinforcement installation. Their  
use and polarity can be freely programmed. A maximum of 16 floating relay contacts are provided to be  
used as control outputs. The inputs and outputs are divided into 4 Ports (A, B, C, D,); where Port A also  
contains a fault contact.  
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Each of the 4 ports also supplies a power source in order to facilitate the connection of floating contacts.  
The ground and earthing conditions are shown in the above diagram. The strict separation of control and  
audio signals guarantees the trouble-free installation.  
Sequence function  
The following example shows in sequence the necessary steps from closing the contact of an external  
switch to listening to the audio signal:  
A switch is connected to one of the DMM 4650’s control inputs (A1 - D4). The desired input is selected  
in the trigger menu. Logic level (high, low), delay, and function (dyn, stc, latch) can be set. The desired  
sequence (Sxx) gets chosen here as well.  
For this sequence, the actions of the DMM 4650 are programmed step by step. Standard sequences are  
provided as factory presets. They can be modified as need arises and stored as user presets.  
Example of a sequence: set output (lamp indicator), audio control SUM off, audio control DMM -3 dB, wait  
for input release, after release start alarm, delay 10 sec. (alarm duration), end.  
This sequence is entered line-by-line with special commands (list page 25) and - including name and  
priority - stored as a preset. If an appliance uses unaltered functions on a regular basis, it is also possible  
to save these sequences via the RS 232 interface.  
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OPERATING THE DMM 4650  
General  
All adjustments carried out at the appliance remain in memory even if the appliance is not connected to  
a power source (EPROM).  
Pressing the EXIT-key lets you step back and forth through the levels of the operation menu tree (page  
11). The stand-by mode is entered by pressing the EXIT-key when in the “main menu”.  
If no key is pressed within a period longer than 5 minutes, the appliance enters the stand-by mode  
automatically (except during recording and restore).  
Stand-by  
When the DMM 4650 is connected to a power source, the green POWER-LED lights, the display is  
dimmed, and the relay outputs are set to their pre-programmed states according to the system’s  
configuration. This stand-by status is remained until a control input starts a sequence. The display shows  
the sequence’s name and number for the duration of the sequence. After completion of the sequence,  
the DMM 4650 re-enters stand-by mode.  
The states of the control “outputs”, the audio relay “bypass”, and the “sum level” setting during stand-by  
operation are set in the operation menu“System setup” (page 26).  
Password  
Password-protection prevents the DMM 4650 from unauthorized operation. Three distinct user levels are  
available which can be accessed by entering the respective password. As factory defaults, “1111" is  
programmed for Level 1 (easy operation), ”2222" for Level 2 and “3333" for Level 3 (installer). Individual  
modification for each user is possible. The menu tree diagram (page 11) shows which access is assigned  
to the respective user level.  
Password entry, operation end  
Pressing any key on the DMM 4650’s front panel, “Password ?” appears on the display. Using the cursor  
keys you have to enter a 4-digit number and confirm it with the menu key ok. After entering the correct  
4-digit password, the display shows the number of your user level. Using the cursor keys you are able to  
select the desired menu. The EXIT-key cancels the operation and the appliance is protected against  
unauthorized use.  
Priority function  
With the DMM 4650 provides the opportunity to set priorities from 0 to 99; where 99 represents the highest  
priority level. Setting the priority level leads in different results.  
The priority of a sequence is defined by its free programmable priority setting (menu “sequence” “priority”).  
This determines, whether e.g. a fire alarm sequence cancels a gong control sequence. Not the control  
line of an input, but the priority number of the triggered sequence determines its priority. With equal  
priorities, the sequence that had been started first remains valid.  
The selected user level states the priority for the operation on the appliance. User level 1 = priority no.  
33, user level 2 = priority no. 66, and user level 3 = priority no. 99. Modifying the default for lower user  
levels is performed within the menu “System setup” “priority’”. The setting of the user priority controls,  
whether an operator gets interrupted by an important sequences (sequence priority).  
Users are able to modify messages, gongs, and alarms and save them as user presets. Depending on  
the actual user level, the programs are automatically provided with the corresponding user priority  
numbers (see above). They are maintained for the case that the original preset’s priority is lower. In this  
way it is guaranteed that user 1 cannot modify the presets of user 2. In order to allow access for other  
users, the priority allocation can be modified downwards (lower priority) by the respective user before  
storing a preset  
(menu: “message > priority", gong" > “priority”, “alarm" > ”priority")  
If recording a message via remote recording, the priority number of the recording sequence is transferred  
to the message.  
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Passwort  
Hauptmenue  
Main-Menue  
Einstellung  
System-Setup  
1
Durchsage  
Announcement  
1
Message  
Message  
1
Gong  
Gong  
1
Alarm  
Alarm  
1
Sequenz  
Sequence  
2
Auslöser  
Trigger  
3
Selbsttest  
Selftests  
3
Kontrast  
Contrast  
1
Play/record  
laden  
load  
1
laden  
load  
1
laden  
load  
2
Helligkeit  
Backlight  
1
edit  
1
Kopfhörer  
Phones  
1
Titel  
title  
1
Editor  
edit  
1
Editor  
edit  
1
Priorität  
priority  
3
Priorität  
Priority  
2
Priorität  
priority  
1
Passwort  
Password  
1
Titel  
title  
1
Titel  
title  
1
Stoppbedingung  
stop-trigger  
3
Ausgänge  
Outputs  
3
Bypass  
Bypass  
3
Play alle  
play all  
3
Priorität  
priority  
1
Priorität  
priority  
1
Schrittliste  
step-list  
2
Summenpegel  
Sum-Gain  
3
Abschwächer  
Attenuator  
3
freigeben  
release  
3
sichern  
save  
1
sichern  
savel  
1
Titel  
title  
2
init DMM 4650  
init DMM 4650  
3
format Flash  
format Flash  
3
Leerblocks  
free space  
1
sichern  
save  
3
Flash Platz  
flash space  
1
1 = Easy use  
2 = Normal use = User 1 +2  
3 = Special use = User 1 + 2 +3  
= User 1  
Software  
Software  
1
Info  
info  
3
Sprache  
Language  
3
Backup  
Backup  
2
bestätigen  
confirm  
3
Restore  
Restore  
3
RS232  
RS232  
2
Checksumme  
checksum  
3
Uhr  
Clock  
1
löschen  
delete  
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MESSAGE  
General:  
Messages are audio signals, stored in the DMM 4650 as information, alarm announcements or other often  
used texts. Recording a message can be performed directly at the DMM 4650 or by means of remote  
recording. Playback via sum output is achieved by starting a message (Mxx) within a suitable sequence  
(see “Trigger”, “Sequence”).  
For test purposes the message can be listened to via the Pre-listen outputs using the recorder keys  
PLAY/STOP. The functions are similar to a cassette recorder, with the difference that the audio data is  
saved digitally in maintenance-free flash memories. Depending on individual needs, different audio  
qualities are selectable. The maximum recording time depends on the selected audio quality and the  
installed memory (see table, page 14).  
A backup of all message audio data is possible through analog recording (cassette deck, DAT recorder)  
or as a digital backup on a computer via the remote interface (RS 232).  
Message number, Preset  
Up to 100 distinct messages (M00 to M99) including title, name, and priority can be saved.  
The DMM 4650 is shipped without any pre-recorded messages, since - depending on individual user  
requirements and custom applications – variations would be numerous. Some factory preset sequences  
use M00, M01, and M02 (see list of preset sequences). Thus, they have to be recorded for incorporating  
them in the respective applications. Some text examples are to be found at the end of this manual.  
Operation menu “message”  
Confirming the menu selection “message” by using the soft key “ok”, the number of the message appears  
in the display together with its title and playback time (hours : minutes . seconds). The DMM 4650 is now  
in the recording/playback mode and can be operated using the transport-keys as follows:  
Note:  
This mode only allows playback via the PRE-listen/Phone outputs!  
Title skip backwards, selects the previous actually recorded message. During playback  
the selected message starts playing immediately.  
Rewind, skips back one message, during playback fast rewind enables the user to listen  
to a specific part several times.  
Play/Stop starts or stops the playback of the selected message. Recording is stopped by  
pressing the stop key.  
Recording, pressing this key once switches the selected message into recording stand-by.  
In case a previously recorded message exists, the question “delete?” is displayed and  
leaving you the choice to record a new message with “Y=Yes” or cancel the command  
with“N=No”. If you choose delete, the record key has to be pressed again after completion  
of the procedure. If this message is not supposed to be deleted, you have to select an empty  
location. The items “Recording type ”and “Recording level” are explained later. The display  
now shows “record Mxx” and “pause” with a bargraph, indicating the current signal level.  
Pressing the record key again starts the recording and “play time” replaces “pause”.  
Pressing the Stop/Play-key terminates the recording.  
Fast forward, skips to the next message, forwarding during playback enables the user to  
listen to parts of a longer message.  
Title skip forward, selects the next actually recorded message, during playback this next  
message is immediately audible.  
Using the cursor keys lets you select the previous or next message number.  
Soft key “vl” accesses the volume setting dialog for the phone and pre-listen outputs using  
the cursor keys.  
Soft key “edt” accesses the menu level for title editing, etc. (see following paragraph).  
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Soft key “edt”  
Using the “edt” key in playback mode provides the opportunity to edit and manage your message structure.  
The keys are used to select the following menu items.  
Title  
Confirming “Title” with the soft key “ok” the selected message’s current name appears on the display.  
Using the cursor keys lets you enter a name which can consist of up to 8 characters. The soft keys “A-a”  
are used to toggle between between the upper and the lower letter case while “spc” inserts a blank. After  
pressing “EXIT” (one menu level down) the question “store y, n” appears, in order to prevent any  
inadvertent alteration of the name.  
Priority  
Confirming “Priority” with the soft key “ok”, the priority number of the selected message appears on the  
display and, by using the cursor keys, providing the user with the possibility to alter the number from 00  
up to the his/her priority level. A higher priority prevents unauthorized alteration of this preset by users  
with lower priority. After pressing “EXIT” (one menu level down) you have to choose on the appearance  
of the question “store y, n”, whether you want to make your changes permanent.  
Play all  
Confirming “Play all” with the soft key “ok”, the name of the first message gets displayed. Using the  
PLAY/STOP-key lets you start or stop the playback of all recorded messages. Mostly, this menu item  
serves for transferring all recorded messages onto an analog audio tape deck or DAT recorder via the  
phone/pre-listen outputs.  
Release  
Confirming “Release” with the soft key “ok”, the display shows that the search for lost blocks in the flash  
memory (sound memory) has been engaged. Whenever such blocks are found, the memory structure  
gets repaired which is also indicated on the display. This menu’s operation is used to release memory  
that has been mistakenly reserved.  
Free space  
Confirming “Free space ” with the soft key “ok”, the number of available flash memory chips and the overall  
free sound memory capacity are displayed in %.  
Info  
Confirming “Info” with the soft key “ok”, shows the audio quality setting and the used space for the  
previously selected message.  
Confirm  
The audio data of a message is constantly monitored. In case an inaccurate data structure (see also  
self-surveillance page 29) is detected, the corresponding message is marked with an asterisk (*). Anyway,  
if the erroneous data does not affect the audible result of the sound reproduction, “confirming” with the  
soft key “ok” omits the marking (*). From now on, the actual data is utilized as test pattern and you are  
given the possibility to acknowledge the fault indication (Power-LED blinks) within the menu “self-test”  
(page 29).  
Check sum  
Confirming “Check sum” with the soft key “ok”, the check sum of the previously selected message appears  
on the display. In case of fault, this value is used as a reference for erroneous messages.  
Delete  
Confirming “delete” with the soft key “ok”, shows the question “delete?” on the display. Using the soft keys  
“y=yes, n=no” lets you erase the previously selected message.  
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Recording level  
An integrated, electronic control automatically adjusts the input sensitivity of the DMM 4650’s (Mic, Line,  
Rec. Inp) inputs. This level setting remains unchanged, until the question “Select new recording level?”  
is answered by using the soft key “y=yes” before starting a new recording. By using a short test signal  
marks the new setting of the control which is automatically stored. Pressing the soft key “ok” exits the  
recording level menu.  
Adjusting the recording level only becomes necessary when the connected signal source is changed or  
major level changes occur.  
Remote recording  
It is possible to activate a recording via one of the control inputs (ports A .. D). An example given in the  
list of factory sequences (S29, S30) on the pages 40-41. The message defined within the sequence is  
automatically erased before the new recording starts. The example employs an indication lamp for start  
recording (= deleting end) and the maximum recording time is set to 10 seconds.  
Adjusting the recording level corresponds to the description in the previous paragraph. The message’s  
audio quality setting stays unaltered as well. The priority number of the sequence gets copied to the priority  
of the message.  
Audio quality, recording duration  
Prior to recording a message, “recording type” is shown on the display. The cursor keys are used to alter  
the audio cutoff frequency (16 kHz, 8 kHz, 4 kHz) and the signal quality (CD = 16 bit linear, long = 8 bit,  
µ-Law). The factory default setting is “8 kHz long” for all messages. The newly set audio quality is  
maintained and individual adjustment for each message is possible.  
Table for recording time (minutes) versus audio quality and installed sound memory extension (NR 90205).  
Accuracy  
CD  
long*  
4 kHz  
4 min  
8 min  
12 min  
16 min  
bandwidth  
4 kHz  
8 kHz  
1min  
16 kHz  
0,5 min  
1 min  
8 kHz  
2 min  
4 min  
6 min  
8 min  
16 kHz  
1 min  
2 min  
3 min  
4 min  
without NR 90205 2 min  
1x NR 90205  
2x NR 90205  
3x NR 90205  
4 min  
6 min  
8 min  
2 min  
3 min  
4 min  
1,5 min  
2 min  
* The specified times for the"long" recording mode are minimum values since the active data reduction  
recognizes pauses in the audio signal. Pauses are defined as passages where the signal level drops -70  
dBu below full modulation.  
Message memory extension  
It is possible to extend the sound memory capacity of the appliance by incorporating up to three additional  
plug-in boards (extension kit NR 90205). The corresponding recording times are specified in the table  
above. The flash memories have to be formatted after insertion (see menu “system setup” > “format  
flash”).  
Asterisk (*) behind message duration  
An asterisk * behind the message recording time display signals that the corresponding data has been  
corupted. The error is shown by the blinking Power-LED. In case you decide that the audio quality is  
sufficient, after listening to the recording, you have to enter the menu “confirming” (page 13) to delete the  
*-sign. If the result is not tolerable, the only solution is re-recording the message. To omit the blinking  
Power-LED you have to acknowledge error no. 14 in the “self-test” menu (page 29).  
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GONG  
General:  
Gong Presets are audio signals that can be started within a sequence. Order and parameters of a gong  
sequence can be edited. For test purposes the sound can be started in the “gong > editor” menu by use  
of the PLAY/STOP keys. It is audible via the Pre-Listen outputs.  
Gong Presets  
20 freely programmable presets (user preset) are available; from G00 - G19. Starting with G20 and going  
to G26 factory preset gong sequences are programmed. The corresponding functions are explained in  
the table on page 45. Erasing the factory presets is not possible. Creating your own gong sequence is  
easiest accomplished by modifying an existing, possibly similar gong (user or factory preset) and storing  
it under a new number together with its new title and priority.  
Operation menu gong  
Confirming the menu selection “gong” with the soft key “ok”, the cursor keys < > allow selecting the  
following sub menus.  
Load  
Confirming “load” with the soft key “ok”, “Gxx ‘Title ‘and the soft keys ”yes, no" appear on the display.  
Using the cursor keys the gong number xx is modified while the corresponding name is being displayed.  
“y” lets you load the selected gong into memory and modification is performed in the “editor” menu.  
Editor  
The “editor” menu allows modification of gong sequences, envelopes, repetition amounts and several  
other parameters (see parameter listing). Testing the gong’s sound properties is possible by starting the  
gong sequence, using the PLAY/STOP key. The audio signal is presented at the pre-listen outputs.  
Parameter modifications are audible after performing a restart. Pressing the RECORD key stops the gong.  
After pressing the “EXIT” key (previous menu level), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
Title  
Confirming “Title” with the soft key “ok”, the name of the currently loaded gong sequence appears on the  
display. Using the cursor keys you are able to enter a new name that consists of up to 8 characters. The  
soft keys “A-a” are used to shift between the upper and the lower character case while “spc” inserts a  
blank character. After pressing the “EXIT” key (previous menu level), the question “store yes, no?” appears  
on the display. Acknowledging this question lets you save your new settings in a user preset.  
Priority  
Confirming “Priority” with the soft key “ok”, the priority number of the selected gong preset gets displayed.  
Using the cursor keys, the priority number can be set starting from 00 up to the user priority. A higher  
priority protects against unauthorized alteration of this preset by users with lower priority level. All factory  
presets are provided with a priority of 00, because they cannot be overwritten, anyway. This offers any  
user the possibility to use them as prototype sequences.  
After pressing the “EXIT” key (one menu level down), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
Save  
Confirming “save” with the soft key “ok”, the currently selected gong number gets displayed. Using the  
cursor keys, the desired gong number can be entered. Storing a preset has to be confirmed with the soft  
key “y = yes”. With“save” all modifications in the above mentioned menu items are saved into the selected  
user preset. Thus, individually saving the parameters is not necessary, since they remain in memory until  
another gong is being loaded.  
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List of available gong parameters  
Type four-stroke, three-stroke  
bar1:  
first gong stroke, A highest sound, B, C, to D deepest sound  
attack1:  
release1:  
attack rate from 00ms (hard) to 99ms (soft)  
fading sound from XXL (long, several seconds.), XL, L, M, S, XS, XXS (short, approx. 1sec)  
start 2:  
bar2:  
attack2:  
release2:  
start delay of the second gong stroke in seconds. (min 00.0s, max 99.9s)  
second gong stroke, A highest sound, B, C, to D deepest sound  
attack rate from 00ms (hard) to 99ms (soft)  
fading sound from XXL (long, several seconds.), XL, L, M, S, XS, XXS (short, approx. 1sec)  
start 3:  
bar3:  
start delay between second and third gong stroke in seconds. (min 00.0s, max 99.9s)  
third gong stroke, A highest sound, B, C, to D deepest sound  
attack3:  
release3:  
attack rate from 00ms (hard) to 99ms (soft)  
fading sound from XXL (long, several seconds.), XL, L, M, S, XS, XXS (short, approx. 1sec)  
start 4:  
bar4:  
start delay between third and fourth gong stroke in seconds. (min 00.0s, max 99.9s)  
fourth gong stroke, A highest sound, B, C, to D deepest sound  
attack4:  
release4:  
attack rate from 00ms (hard) to 99ms (soft)  
fading sound from XXL (long, several seconds.), XL, L, M, S, XS, XXS (short, approx. 1sec)  
Type two-stroke, one-stroke  
bar1:  
first gong stroke, A highest sound, B, C, to D deepest sound  
attack1:  
release1:  
attack rate from 00ms (hard) to 99ms (soft)  
fading sound from XXL (long, several seconds.), XL, L, M, S, XS, XXS (short, approx. 1sec)  
start 2:  
bar2:  
attack2:  
release2:  
start delay of the second gong stroke in seconds. (min 00.0s, max 99.9s)  
second gong stroke, A highest sound, B, C, to D deepest sound  
attack rate from 00ms (hard) to 99ms (soft)  
fading sound from XXL (long, several seconds.), XL, L, M, S, XS, XXS (short, approx. 1sec)  
repetition: number of repetitions of the gong sequence (min 1x, max 9999x), 0000 corresponds to  
infinite repetition.  
rep-del:  
time between two gong sequences in seconds (min 00.1s, max 99.9s).  
Remarks regarding parameter setting:  
Although the above mentioned parameters are extensively variable, the gained results not always  
represent a good sound. E. g.: attacks for low frequency bar strokes are acoustically quite different from  
the gong A sound.  
Since a maximum of 2 gong strokes can be simultaneously processed, starting the third gong too early  
will abruptly end the first one and lead to unpleasant sound cut-off knacks. Effects like these resulting  
from extreme parameter settings are of physical reason and should be optimized by listening tests, first.  
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ALARM  
General:  
Alarms are audio signals that can be started within a sequence. The alarms are square wave forms  
providing the possibility for various parameters to be adjusted. For test purposes, it is possible to start the  
alarms signals in the “alarm editor” menu using the PLAY/STOP key. They are present on the pre-listen  
outputs.  
Alarm Presets  
20 freely programmable presets (user presets) are available; from A00 to A19. The factory presets are  
pre-programmed on the preset numbers A20 - A34. The corresponding functions are explained in the  
table on page 46. Erasing these presets is not possible. In order to create your own alarm preset, modifying  
an existing, possibly similar alarm (user or factory preset) and storing it under a new number together with  
its new title and priority, is the easiest way to accomplish this task.  
Operation menu alarm  
Confirming the menu selection “Alarm” with the soft key “ok” lets you select the following sub menus using  
the cursor < > keys .  
Load  
Confirming “load” with the soft key “ok”, Axx ‘Title’ and the soft keys “yes, no” appear on the display. Using  
the cursor keys lets you edit the alarm number xx while the corresponding name is displayed. “Y” loads  
the selected alarm into memory while further editing is performed in the “editor” menu.  
Editor  
The menu “editor” allows modification of audio frequencies, envelopes, duty-factors and several other  
parameters (see parameter listing). Testing the alarm’s sound properties is possible by starting the alarm  
sequence using the PLAY/STOP key. The sound is presented via the pre-listen outputs. Parameter  
modifications are audible after performing a restart. The RECORD-key stops the alarm.  
After pressing the “EXIT” key (previous menu level), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
Title  
Confirming “Title” with the soft key “ok”, the name of the currently loaded alarm is displayed. Using the  
cursor keys lets you enter a name of up to 8 characters. The soft keys “A-a” shifts between the upper and  
the lower character case while “spc” inserts a blank character.  
After pressing the “EXIT” key (previous menu level), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
Priority  
Confirming “Priority” with the soft key “ok”, the priority number of the selected alarm preset appears on  
the display. Using the cursor keys, the priority number can be set starting from 00 up to the user priority.  
A higher priority protects against unauthorized alteration of this preset by users with lower priority level.  
All factory presets are provided with a priority of 00, because they cannot be overwritten, anyway. This  
offers any user the possibility to use them as prototype sequences.  
After pressing the “EXIT” key (one menu level down), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
Save  
Confirming “save” with the soft key “ok”, the currently selected alarm number is displayed. Using the cursor  
keys, you are able to enter the number of the desired alarm. Storing a preset has to be confirmed with  
the soft key “y = yes”. With“save”, all modifications in the above mentioned menu items are saved into  
the selected user preset. Thus, individually saving the parameters is not necessary, since they remain in  
memory until another gong is being loaded.  
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List of available alarm parameters  
Type Uni-sweep  
frequency1:  
frequency2:  
time:  
ratio:  
repeat:  
pitch at sound-start in Hz (min 40Hz, max 9999Hz) is swept until frequency2 is reached.  
pitch at sound-stop in Hz (min 40Hz, max 9999Hz).  
duration of the sweep - Freq1 to Freq2 - in seconds., (min 0.01s, max 99.99s).  
duty-cycle of the square wave in percent, (min 1%, max 50%)  
number of repetitions of the sweep Freq1. > Freq2 (min 1x, max 9999x).  
0000 corresponds to infinite repetition.  
Values in parenthesis ( ), example DIN alarm, A20  
Type Bi-sweep  
frequency1:  
frequency2:  
pitch at sound-start in Hz (min 40Hz, max 9999 Hz) is swept until frequency2 is reached.  
reverse frequency of the sound in Hz (min 40Hz, max 9999Hz) is swept until frequency1  
is reached.  
time:  
sweep duration from freq1 to inversion point in sec., (min 0.01s, max 99.99s).  
The duration of the sweep freq1> inversion point > freq1 is symmetrical.  
duty-cycle of the square wave in percent, (min 1%, max 50%)  
number of repetitions of the sweep Freq1.> inversion point (min 1x, max 9999x).  
0000 corresponds to infinite repetition.  
ratio:  
repeat:  
Values in parenthesis ( ), example siren, A22  
Type continuous sound  
frequency:  
ratio:  
pitch of the sound in Hz (min 40Hz, max 9999Hz)  
duty-cycle of the square wave in percent, (min 1%, max 50%)  
time:  
duration in sec., (min 0.01s, max 99.99s). 0.00s corresponds to infinite duration.  
Values in parenthesis ( ), example BZB all clear signal, A25  
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Type Jump sound  
frequency1:  
time1:  
frequency2:  
time2:  
ratio:  
repeat:  
pitch at sound-start in Hz (min 40Hz, max 9999Hz) jumps after time1 to frequency2  
duration for which freq1 is heard in sec., (min 0.01s, max 99.99s).  
pitch of the sound in Hz (min 40Hz, max 9999Hz) jumps after time2 to frequency1  
duration for which freq2 is heard in sec., (min 0.01s, max 99.99s).  
duty-cycle of the square wave in percent, (min 1%, max 50%)  
number of repetitions of one frequency (min 1x, max 9999x).  
0000 corresponds to infinite repetition.  
Values in parenthesis ( ), example Post, A23  
Type burst  
Frequency:  
on-time:  
off-time:  
Ratio:  
pitch of the sound in Hz (min 40Hz, max 9999Hz)  
duration for which the sound is heard in sec., (min 00.01s, max 99.99s).  
duration of the pause in sec., (min 00.01s, max 99.99s).  
duty-cycle of the square wave in percent, (min. 1%, max. 50%)  
number of repetitions of the sound (min 1x, max 9999x).  
0000 corresponds to infinite repetition.  
repeat:  
Values in parenthesis (), example ship2, A31  
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Announcement  
General:  
Using the announcement function provides the possibility to assign incoming audio signals from the  
recording inputs (Mic, line, Rec-Inp) directly to the sum output. Especially in stand-alone applications this  
option is particularly useful, since it will possibly save one microphone amplifier. Starting the function is  
either performed in the DMM 4650’s operation menu or remotely controlled via a control line. For external  
operation a sequence is provided as factory preset S32 (page 42) which is easily adapted according to  
individual requirements.  
Operation menu announcement  
Confirming the menu selection “announcement” with the soft key “ok”, “select new input level?” and the  
soft keys “yes, no” are displayed. Adjusting the electronic input level control is performed here. After  
recording a short test signal, the control’s new setting is automatically stored and stays. This value is  
independent of the recording level in Massage recording. Pressing the soft key “ok” cancels the level  
adjustment menu and the DMM 4650 returns into announcement mode.  
The display shows the message “Announcement” and a bargraph for optical control of the correct input  
level setting. The soft key “vl” allows modifying the pre-listen outputs’ volume setting while “end” closes  
the announcement function.  
Setting the recording level a new is required only when the connected signal source is changed or any  
other large scale alterations of the input level take place.  
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Trigger  
General  
The menu trigger allows to assign the connection of a control input to a function of the DMM 4650  
(sequence start) while various control inputs can initiate a single sequence. The separate logic control  
settings for each input provide the possibility to optimally match the requirements of an installation.  
Pressing the soft key “set” stores the new trigger and it remains in memory even during periods when the  
mains or battery power is missing.  
The control inputs’ technical specifications are to be found in the chapter CONNECTIONS as well as in  
the APPENDIX.  
Operation menu trigger  
Confirming the menu selection “trigger” with the soft key “ok”, using the cursor keys provides the possibility  
to make the following settings:  
1 Using the cursor keys selects a control input. Possible selections are the Ports A, B, C, D and their  
corresponding input numbers 1, 2, 3, 4.  
2 The logic control level gets also selected using the cursor keys: H=high (flowing current), L=Iow (no  
current), X=H or L (variable currents) and selecting “off” switches the sequence start of the selected  
line off.  
3 Using the cursor keys sets a bounce time between 0.0 and 25.0 seconds. The logic control level  
selected in point 2 has to be present (stable) at the control input at least for this time value, so that  
the prerequisite for a sequence start is fulfilled.  
4 The cursor keys provide the possibility to choose of a selection of three distinct conditions for a  
sequence to be started. A valid start attempt is initiated only, if the conditions 2 and 3 are fulfilled.  
The switch “dyn” = dynamic tries to start the stated sequence and simultaneously deletes the start  
command. A currently running sequence with equal or higher priority prevents the sequence start  
command from being initiated.  
The switch “stc” = static tries to start the selected sequence as long as the conditions 2 and 3 deliver a  
true result. This allows the periodic repetition of a sequence, as long as the conditions are fulfilled (e.g. a  
key is kept depressed). In case a sequence with equal or higher priority is currently running, the start of  
a new sequence is only possible after completion of the first sequence and, if the trigger conditions at this  
moment are still fulfilled.  
The switch “lat” = latched stores the start command and tries to initiate the selected sequence continuously  
until its launch has been successful. A new triggering of this input is stored only after completion of the  
sequence. All16 control inputs are separately stored and the sequences are launched in the succession  
of their priorities.  
5 The sequence which is supposed to be started with this control line can be selected with the cursor  
keys.  
6 Pressing the soft key “set” stores the above mentioned settings and actives them immediately.  
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Trigger recognition  
The level of the control inputs are periodically monitored by the processor. The sampling time (T = sample  
s
rate) is typically T  
= 30 msec. The maximum monitor interval can be set to T  
= 100 msec. Thus,  
s typ  
s max  
shorter impulses, spikes or quick AC voltages are recognized inaccurate or with a delay (undersampling).  
The bi-polar control inputs evaluate both half-waves of AC voltages.  
Examples for trigger settings  
T = sample delay, T  
= 30 msec, T  
= 0 msec, T  
= 100 msec  
s
s typ  
s min  
s max  
If the control input is ON for at least 0.6 seconds (T + T  
) and no other sequence with a higher  
del  
s max  
priority is currently running, the sequence 23 is started once. The end of the starting impulse is arbitrary.  
Sequence 21 is initiated when the control input is without power for at least 0.2 seconds and no other  
sequence with a higher priority is currently running. Since the control input is still low at the end of the  
sequence, S21 starts once again.  
If this control line’s (watchdog) level is not altered for a period longer than 1.0 seconds, the sequence 02  
is launched. If a sequence with a higher priority is currently running, the newly selected sequence will only  
be initiated after completion of the sequence with the higher priority. Please be aware of the fact, that the  
truthful recognition of level alterations is only possible when they are applied for a longer period than 100  
msec (see trigger recognition).  
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SEQUENCES  
General:  
Sequences are a series of single steps, determining the functions of the DMM 4650 step by step. Thus,  
providing the possibility to define signal sequences, volume levels, trigger outputs, time sequences, loops,  
etc. Triggering an input (“trigger”) normally starts a sequence. However, for test purposes it is possible to  
start a sequence via menu command. A sequence preset can consist of maximally 50 single steps.  
Sequence Presets  
20 freely programmable presets (user presets) from S00 - S19 are provided. The functions of the factory  
presets S20-S37 are explained in tables on the pages 36 - 44. Erasing the factory presets is not possible.  
Probably the easiest way to create your own sequences is to modify already existing, possibly similar  
sequences (user or factory presets) and store them under different numbers together with their new titles  
and priorities.  
Operation menu sequence  
Confirming the menu selection “sequence” with the soft key “ok”, using the cursor keys lets you select the  
following sub menus:  
Load  
Confirming “load” with the soft key “ok”, “Sxx ‘title ‘and the soft keys ”yes, no" appear on the display.  
Modifying the sequence number xx is possible by use of the cursor keys; the corresponding name is  
displayed. The selected sequence is loaded into memory with “y” offering the possibility for editing in other  
menus.  
Priority  
Confirming “Priority” with the soft key “ok”, the display shows the priority number of the selected sequence.  
Using the cursor keys it can be altered in the range of 00 up to 99.  
After pressing the “EXIT” key (previous menu level), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
Stop trigger  
When confirming “stop trigger” with the soft key “ok”, a menu is displayed which allows trigger settings  
for an input control line. Possible choices are described in the chapter“trigger”. The stop trigger function  
is only available when the sequence commands “if stop” or “wt stop” are included.  
After pressing the “EXIT” key (previous menu level), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
Step list  
When confirming “step list” with the soft key “ok”, a menu is displayed which allows the indication of all  
individual steps of a sequence. In caes the listing of a certain sequence is supposed to be edited, the  
sequence has to be loaded into memory, first (menu “load”). The cursor keys are used to modify the step  
number and its corresponding function (see list of available step functions). The soft keys “d = delete” and  
“i = insert” simplify the editing of step listings by deleting or inserting complete rows of steps at the currently  
displayed step number.  
In order to test the functionality of a sequence before the actual storing process is performed, it is possible  
to launch the sequence including all audio signal and control line results by pressing the PLAY/STOP and  
RECORD-(stop trigger) keys. Pressing the EXIT key immediately cancels the test function.  
After pressing the “EXIT” key (previous menu level), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
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Title  
Confirming “title” with the soft key “ok”, the name of the currently loaded sequence appears on the display.  
Using the cursor keys offers the possibility to enter a name of maximally 8 characters. The soft keys “A-a”  
and “spc” shift between the upper and the lower character case or enter a blank character, respectively.  
After pressing the “EXIT” key (previous menu level), the question “store yes, no?” appears on the display.  
Acknowledging this question lets you save your new settings in a user preset.  
Save  
Confirming “save” with the soft key “ok” displays the number of the currently selected sequence. The  
cursor keys are used to enter the desired sequence number. Saving has to be confirmed using the soft  
key “y= yes”. Choosing “save” stores all modifications made in the above mentioned menu items into the  
selected user preset. Thus, individual saving the parameters in not necessary, since they remain in  
memory until another sequence is loaded.  
If a factory preset sequence (S20, S21,...) is chosen for saving, only the ‘stop trigger" is stored.  
Sequence example  
Via “sequence” > “load” > S28 > “step list” the step function listing of sequence S28 with the name  
‘Message 2’ is being selected, which shall serve as a simple example. The purpose of this sequence is  
the indication of a lamp signal and the playback of a previously recorded message to its end.  
Step number  
command  
parameter  
Function  
indication lamp ON (relay C1)  
1:  
Out  
C.1 set  
input signal off  
2:  
3:  
4:  
5:  
6:  
Sum=  
DMM=  
Start  
wt  
off  
volume DMM signal -2 dB  
start message M02  
-2dB  
M02  
Audio  
wait until message end  
Ende sequenz > stand-by  
End  
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List of available step functions in sequences  
parameter  
Command  
Nop  
Function  
-no operation  
End  
-ending the running sequence  
Out  
X.Y set  
X.Y clr  
X.Y inv  
-Output Y (1 ..4) of the I/O module X (A..D) is set to 1 (contact closed)  
-Output Y (1 ..4) of the I/0 module X (A..D) is set to 0 (contact open)  
-Output Y (1 ..4) of the I/O module X (A..D) is inverted  
Start  
Axx  
Gxx  
Mxx  
Ann.  
-ends a currently running audio signal immediately and starts the alarm preset xx  
-ends a currently running audio signal immediately and starts the gong preset xx  
-ends a currently running audio signal immediately and starts the message xx  
-ends a currently running audio signal immediately and starts the announcement  
Break  
Finish  
-ends a currently running audio signal immediately  
-requests the end of the running audio signal. Gong, alarm fade out, messages and  
announcements are finished, recording is stopped.  
DMM=  
Sum=  
-xx dB  
-xx dB  
-controls of the DMM 4650 audio signal is set to -xx dB (*0 dB default)  
-control of the input - output XLR connection is set to -xx dB  
Bypass  
set  
clr  
inv  
-analog bypass relay, direct connection XLR input - output closed  
-analog bypass relay, no relay connection XLR input - output  
-inverted analog bypass relay  
Audio  
prl  
sum  
-switches the started DMM audio signals to pre-listen outputs (Pre-Listen only)  
-switches the started DMM audio signals to pre-listen and sum outputs (*default)  
Record  
Mxx  
-ends a currently running audio signal immediately and starts the recording of the  
message xx. At first this message is being erased and then recording starts at the last  
adjusted recording level. Audio quality and name of this message stay unchanged.  
The message priority is identical with the sequence priority. The execution time lasts  
until End Delete Message (start of recording).  
Dly=  
ttt,t s  
xxxx  
-sets a timer to ttt,t seconds and starts measuring this time (sand glass).  
Count=  
-sets a counter (event counter) to a starting value xxxx. With every “if count”-command  
the counter is decremented by 1 until 0 is reached.  
Jump  
if  
xx  
-resumes the sequence at step number xx.  
Delay  
-only executes the next step number if the delay time has elapsed (see command Dly).  
Otherwise the next step number is being skipped.  
Count  
-the counter is decremented by 1. The next step number is executed only if the counter  
has reached 0 (see command Count). If the counter value is greater than 0, the next  
step number is being skipped.  
Audio  
-executes the next step number only if the audio signal started at last is finished  
(see command start), otherwise the next step number is being skipped.  
In X,Y Z -executes the next step number only if the desired level Z (H or L) is applied at input  
Y (1 ..4) of the I/O module X (A..D). If this condition is not fulfilled, the next step number  
is being skipped.  
Stop  
-executes the next step number only if the stop trigger condition of this sequence is  
fulfilled. Otherwise the next step number is being skipped.  
wt  
Delay  
-waits until the delay time is elapsed  
Audio  
-waits until the last started audio signal is finished  
In X,Y Z -waits until the desired level Z (H or L) is applied at input Y (1 ..4) of the I/O  
module X (A..D).  
Stop  
-waits until the stop trigger condition of this sequence is fulfilled.  
* setting which is utilized, if a command is not used  
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System setup  
General  
Basic functions are defined in the menu system setup. Examples are: behaviour during stand-by,  
language, data backup, etc. The factory defaults are explained in the table on page 36. Modifications are  
automatically saved and remain in memory even without supply voltage.  
Operation menu system setup  
Confirming the menu selection “system setup” with the soft key “ok”, the following sub menus can be  
selected using the < > cursor keys .  
Contrast  
Confirming “contrast” with the soft key “ok”, the display shows “LCD contrast’ and the soft key ”norm".  
The display’s contrast is adjusted in +-% using the cursor keys while “norm” sets the value to 0%. The  
EXIT key switches to the prior menu level.  
Backlight  
Confirming “backlight” with the soft key “ok”, the display shows“L CD backlight” and the soft key “norm”.  
Using the cursor keys, the display’s backlight intensity can be set in a range of 0 % to 100%. The EXIT  
key switches to the prior menu level.  
Headphones  
Confirming “headphones” with the soft key “ok”, the display shows“headphones” and the soft key “norm”.  
Using the cursor keys, the value for the volume of the Phone/Pre-Listen outputs can be set in a range of  
0 % to 100 % while"norm" sets it to 75%. This setting can also be modified with the soft key “vl” in the  
menus “Message,Gong, and Alarm". The EXIT key switches to the prior menu level.  
Priority  
Confirming “priority” with the soft key “ok”, the display shows“Change User prio” and the soft key “ok”.  
This menu allows fixing user priorites, that are lower than the current user level. The cursor keys are used  
to assign a user number and its priority. The new setting is only effective after confirming the entry with  
the soft key “ok”(“new priority stored’). The EXIT key switches to the prior menu level.  
Password  
Confirming “password” with the soft key “ok”, the display shows“password change” and the soft key “ok”.  
This menu provides the possibility to change all user passwords, that are lower than the current user level;  
including your own password. A user number and its password is set with the cursor keys (4 numbers,  
each from 0-9). The new setting is only effective after confirming the entry with the soft key “ok” (“new  
password stored”). The EXIT key switches to the prior menu level.  
Outputs  
Confirming “outputs” with the soft key “ok”, the name of a control output (relay contact) is displayed. This  
menu allows the settings of all 16 outputs, which are valid in the stand-by mode (no sequence running).  
With the cursor keys one output (A1 to D4) is selected and set to “low” (contact open) or “high” (contact  
closed) depending on the application. This modification is effective immediately.  
This menu item can also be used to test the functions of the DMM 4650’s outputs during the installation.  
The EXIT key switches to the prior menu level.  
Bypass  
Confirming “bypass” with the soft key “ok”, the message “bypass is off” or on appears on the display. This  
menu item allows the setting of the audio relay’s state (input > output) when in the stand-by mode (no  
sequence running). The cursor keys are used to change the status. This change is immediately effective.  
The EXIT key switches to the prior menu level.  
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Sum level  
Confirming “sum level” with the soft key “ok”, enables the setting of the digital audio control “SUM” (see  
audio functions). Using the cursor keys this value in “dB”-steps can be changed and is effective at the  
audio output in stand-by mode (no sequence running); presuming that the bypass relay is off.  
A currently running sequence can change the SUM setting. Anyway, when this sequence is finished  
(stand-by status), the level that was selected previously in this menu is automatically reestablished. The  
EXIT key switches to the prior menu level.  
Attenuation  
Confirming “attenuation” with the soft key “ok”, provides the possibility to set an attenuation level in the  
range of 0 dB to 10dB for the following audio signals: “Alarms”, “Gongs”, and “Announcements”. The  
setting effects all audio signals of the corresponding group.  
This menu provides the opportunity to match the DMM 4650’s output level to different amplifiers and  
loudspeaker systems. The EXIT key switches to the prior menu level.  
init DMM 4650  
Confirming “init DMM 4650" with the soft key ”ok", the message “DMM 4650 init sure?” and the soft keys  
“y=yes, n=no” appear on the display. If this menu item is confirmed with “yes”, the safety query “sure?”  
appears again, before a complete initialization of the DMM 4650 to its factory default is performed. All  
user settings are lost!!! Important user presets, stored in the unit, should be transferred into a PC in  
advance, as described in the menu “backup”.  
The contents of preset memory (EPROM) and message memory (Flash) are deleted or reset to their  
factory pre-set defaults (see list Factory presets). The number of sound memories is detected automat-  
ically. At the end of this procedure the number of bad flash memory blocks is indicated. Afterwards the  
display shows “Soft Reset” together with soft key “ok”. After pressing this soft key the initialization process  
is complete.  
The start “init DMM 4650" is reserved for basic software updates and for applications where the unit is  
used differently.  
format Flash  
Confirming “format Flash” with the soft key “ok”, the message “format Flash, bank X’” and the soft key  
“ok” appear on the display. A bank number can be selected using the cursor keys and “ok”, together with  
the question “sure?”, are displayed in order to avoid inadvertent formatting. Formatting deletes all the  
audio data of the selected memory chip!!! Important message data that is stored in the unit, should be  
saved in advance (“message edit play all”, or “System setup back up”). After starting the procedure with  
the soft key “ok”, the memory chip passes different tests. Faulty blocks are marked and upon conclusion  
of the tests their number is indicated on the display.  
This menu item is necessary for the installation of memory extensions (NR 90205) into the DMM 4650  
and updating the internal message management. The sound memory bank 0 is firmly soldered at the  
circuit board (Pos. U135). Bank 1 is the retrofit pcb at position CN110, bank 2 = CN111, and bank 3 =  
CN112. After inserting the board and starting the“format Flash” procedure, the newly installed message  
memory is accessable. In case several extensions are installed, it is necessary to individually format each  
one them.  
Flash space  
Confirming “Flash space” with the soft key “ok”, the number of available flash memory chips and the free  
space of the sound memory in % appear in the display.  
Software  
Confirming “software” with the soft key “ok”, the display shoes “Dynacord DMM 4650" and the actual  
software revision number.  
Language  
Confirming “language” with the soft key “ok”, using the cursor keys provides the possibility to choose  
between “German” and “English”. The EXIT key switches to the prior menu level.  
Backup  
Confirming “Backup” with the soft key “ok” displays“Backup, excl. Msg” and the soft key “send”. The cursor  
keys are used to select"Exclusive message“ (= device status + gong preset + alarm preset + sequence  
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preset), “update” (equivalent to exclusive message + message management) or “inclusive message”  
(equivalent to update + audio data). The soft key “send” starts the data output via the REMOTE/RS232  
connector.  
This menu item is meant for data transfers into a computer. This function can also be executed via  
command at the RS232 interface. A precise description of the necessary control steps and data formats  
is to be found on the pages 33 - 35. The EXIT key switches to the prior menu level.  
Restore  
Confirming “Restore” with the soft key “ok”, the display shows"Restore release". This mode provides the  
possibility to restore preset data which previously had been saved using the “Backup” procedure via the  
REMOTE/RS232 interface. Since only user 3 has access to the“Restore” command, unauthorized  
modification of the DMM 4650 via the remote interface and other sequences (priority) interrupting a  
“Restore” process in progress is impossible.  
A precise description of the necessary control steps and data formats is to be found on the pages 33 -  
35. The EXIT key terminates this mode (returning to the prior menu level).  
RS232  
Confirming “RS232" with the soft key ”ok", displays the current baud rate of the REMOTE/RS232 interface.  
With the cursor keys the desired data rate can be set and is effective immediately. Normally, this  
adjustment is necessary before “Backup” or “Restore” and remains in memory. This function can also be  
executed via command at the RS232 interface. A precise description of the necessary control steps and  
data formats is to be found on the pages 33 - 35. The EXIT key switches to the prior menu level.  
Clock  
Confirming “clock” with the soft key “ok”, date and time together with soft key “set” appear on the display.  
After pressing “set”, date and time are set anew using the cursor keys. The clock has no power reserve  
at missing supply voltage and is necessary only for the error log in “self test”. With Power-ON the clock  
always starts from the same value.  
Setting date and time is also be achieved via command at the RS232 interface. A precise description of  
the necessary control steps and data formats is to be found on the pages 33 -35. The EXIT key switches  
to the prior menu level.  
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Self test  
General  
In stand-by mode the DMM 4650 runs a number of test routines in order to detect device faults at an early  
stage. Errors are indicated by the flashing of the green POWER LED. On fatal errors or on a higher  
occurence of errors, the flashing gets faster and the fault relay drops. At the same time the audio input is  
connected directly to the output via the bypass relay. This menu allows to locate the cause for a device  
break-down.  
Operation menu self test  
Confirming the menu selection “self test” with the soft key “ok” displays an error number (“Er#xx”), the  
amount and a scrolling text in the lower line on the display. Using the cursor keys lets you select individual  
error numbers. The actual meaning of these numbers is explained in the table on page 47. The number  
shows how often a specific error has occurred. The scrolling text records the first and last occurence of  
the error (see “setting clock”). The EXIT key terminates this menu (return to the prior menu level).  
Note: Error no.1 only counts the switching “on” and “off” of the DMM 4650, but does not lead to an external  
error display (Power On Reset).  
In case that error no.14 leads to the blinking of the green POWER LED, the data of one or more messages  
has been corrupted. The corresponding message(s) is(are) marked with an asterisk (*) (see also page  
14).  
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CONNECTIONS  
CONTROL INPUTS AND CONTROL OUTPUTS PORTS A - D  
General:  
Operation see page 21  
(PORTS C, D are optional)  
Each of the 4 ports (A, B, C, D) have 4 inputs and 4 outputs and a power source for supplying floating  
control keys or contacts.  
The inputs and outputs are galvanic insulated from the DMM 4650 and the adjacent control lines.  
Port A has an additional fault output (relay contact) which, during normal operation, is always closed.  
The DMM 4650 provides port connection through 25-pole sub-D connectors (male).  
Pin assignment for ports A, B, C, D:  
@ corresponds to A, B, C, D  
pin  
1
name  
pin  
name  
- Batt.  
7-20  
8-21  
9-22  
10-23  
11  
OUT @1  
14  
- Batt.  
OUT @2  
2-15  
3-16  
4-17  
5-18  
6
INP @1  
INP @2  
INP @3  
INP @4  
- Batt.  
OUT @3  
OUT @4  
- Batt.  
24  
- Batt.  
12-25  
13  
Fault Out !!Only PORT A  
+ Batt. (max. 90 mA)  
19  
- Batt.  
Control levels and currents:  
Power source -Batt. / +Batt. corresponds to a supply voltage of (20V - 31V) of the DMM 4650. For current  
limitation (fuse), a PTC resistor (positive temperature coefficient resistor) is provided at the +Batt  
connection of each port.  
Inputs:  
The polarity of the control inputs is random.  
L = low corresponds to  
H = high corresponds to  
U
< ± 5V (0-5V)  
> ± 10V (10-31V)  
I
I
< 1mA (0-1mA)  
> 1.8mA (1.8-7mA)  
INP  
INP  
U
INP  
INP  
max. U = ±31V  
inp  
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Outputs:  
Max. output current (relay contacts):  
1A  
0.5A  
at  
24VDC  
50VDC  
Installation example:  
Installation example with factory presets: see also “Factory preset sequences” page 36 - 44  
INPUTS:  
All input signals must be applied longer than 200 msec. in order to be securely recognized. Modifying this  
default is possible in the menu “Trigger”.  
A1  
A2  
A3  
A4  
B1  
B2  
Release signal:  
General Stop:  
Alarm text:  
Input for re-confirmation signal, whether the unit (power amplifiers) is ready  
Input (impulse); interrupts all currently running sequences  
Input (impulse) for playback alarm message (M00)  
DIN alarm:  
Input (impulse) for infinite DIN alarm (siren 1200 Hz - 500 Hz).  
Key pressed for DIN alarm on, key released terminates the alarm  
DIN alarm:  
DIN alarm text:  
Key pressed starts sequence, DIN alarm, 1 sec pause, alarm text (M00),  
1 sec pause, DIN alarm, etc., key released terminates the sequence.  
B3  
B4  
4-tone gong:  
Pre-gong:  
Input (impulse) starts a 4-tone gong (G20).  
Input (static), key pressed starts pre-gong and enables announcement via  
DMM 4650, key released terminates the sequence.  
OUTPUTS:  
All outputs are floating relay contacts.  
A1  
A2  
A3  
A4  
B1  
B2  
B3  
B4  
System on:  
Switches on the electro acoustics sound reinforcement system.  
Signaling contact for alarm text active.  
Alarm text running:  
Alarm signal running:  
4-tone gong running:  
Pre-gong running:  
Mandatory relay E:  
Mandatory relay D:  
Program off:  
Signaling contact for alarm signal active.  
Signaling contact for 4-tone gong active.  
Signaling contact for pre-gong active.  
Switches the sound reinforcement system to mandatory reception (E).  
Switches the sound reinforcement system to mandatory reception (D).  
Switches current music program off.  
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Audio inputs and outputs  
The XLR inputs and outputs are electronically balanced and wired according to the IEC 268 standards.  
If unbalanced XLR connection is desired, PIN1 and PIN3 have to be bridged using a jumper. Specifications  
are to be found in the appendix on page 53.  
If balanced, floating connection is necessary, the extension kit NR 90211 has to be installed for the INPUT  
and NR 90210 for the OUTPUT.  
PIN 1: SHIELD  
PIN 2: a,+  
PIN 3: b,-  
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Remote, RS 232 interface, data backup  
General  
Data backup should be performed prior to new installations and programming modifications of the DMM  
4650. This ensures that replacing an appliance for service purposes takes the least effort, immediately  
providing identical functions on the replacement unit. When setting-up systems with similar functions more  
often, the programming data can be copied using a ready-made data carrier.  
For data backup a PC with serial interface and a terminal program is necessary. Please note that the  
guidelines of the manufacturer of data media (disks, tapes etc.) are to be observed for maximum data  
safety, since they guarantee data integrity for a limited period of time only.  
Using a medium transfer baud rate, the backup of a device status including its gong, alarm, sequences  
and trigger (“backup”) presets lasts about 10 seconds. If the audio data of the message memory(“backup  
message”) is supposed to be saved additionally, the duration depends on the length of the recorded  
messages and can last several minutes (short message) up to some hours (memory completely used).  
Thus, it is recommended to perform an audio data backup via the menu “message edit Play all” onto a  
DAT recorder or tape deck.  
Connection REMOTE/RS 232  
DMM 4650  
9pin D-SUB connector (male)  
Extension cord 1:1  
e.g. Modem connection  
Interface settings  
Baud rate 300 to 38400 The baud rate can be set at the DMM 4650 (“System setup > RS232"),  
Data bits  
Parity  
Stop bit  
Protocol  
8
none  
1
as well as via the interface with command (see list REMOTE commands).  
After pressing the Return key on the PC (Line Feed), the unit returns  
“DMM 4650" (communication test).  
Xon/Xoff  
The baud rate is factory preset to 9600 baud.  
Backup, Restore commands, Priority  
The “backup” command can be given both, from the DMM 4650 menu “System setup > backup”, as well  
as via the REMOTE interface. After starting the backup procedure, the desired data is transmitted in the  
previously determined format via the REMOTE interface. The PC’s terminal program receives the data  
and creates a corresponding file. The terminal program’s configuration is not to be set for any conversion  
of the received data.  
Part of backup file:  
RESTORE is needed for data re-storing, A00 = alarm preset 00, G=gong,  
S=sequences, s=stop trigger, TA.1 =trigger PortA Input1, M=message and  
U=basic settings. This text file can be altered using an editor, e.g. by altering  
A00 into A05 or deleting whole presets including all data belonging to them.  
:Data consist of the character string which belongs to the preset and which  
may not be altered. (! word processor software like WORD or Word Pad  
should not be used to perform the described alterations, since they add they  
own format strings to the text.)  
RESTORE A00: data  
RESTORE G00: data  
RESTORE s20: data  
RESTORE TA.1:  
RESTORE U: data  
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The Backing-up process runs with lowest priority and can be interrupted by other sequences at any time.  
If this is supposed to be avoided, interrupting sequences are blocked by entering the user3 password  
(high priority). If the backup is expected to take very long (“backup message”), start “System setup >  
Restore > ok” after entering the password, in order to prevent the time-dependent switching-off of the  
operation.  
RESTORE stores the data received via the DMM 4650’s REMOTE interface into the stated preset  
memory. In order to prevent the current memory from being inadvertently overwritten, it is necessary to  
previously allow this mode in the menu “System setup > Restore > ok”. The DMM 4650 confirms the  
successful restoration by displaying the message “Preset xx restored”.  
List REMOTE - commands  
Separation command - parameters are separated by a blank character.  
The execution takes place after a line feed command (Return) at the end of a line.  
Parameter in [ ] are optional  
Bold characters describe factory default settings  
Cancel the data transfer with Strg+C  
Command Parameter  
Function  
The DMM 4650 sends device status (System setup), preset gong, alarm, sequences,  
backup  
[ ] [status]  
stop trigger, trigger  
backup  
message  
The DMM 4650 sends device status (System setup), preset gong, alarm, sequences,  
stop trigger, trigger and the audio data stored in the message memory (flash memory)  
baud  
date  
list  
[ ] [ nnnnn]  
shows current baud rate, or sets the DMM 4650’s baud rate to a new value  
shows the current date, or sets the date to a new value  
[ ] [TT.MM.JJ]  
Axx  
Gxx  
...  
The DMM 4650 transfers the selected presets’ data to the PC in plain text.  
For documentation, it is possible to print the presets’ contents via the PC  
for further information see help command  
Restore  
Axx cccccccc  
Gxx cccccccc  
...  
The DMM 4650 stores the data into the stated memory (the correct format is  
determined by the backup)  
for further information see help command  
time  
ver  
[ ] [hh:mm:ss]  
shows current time, or sets the time to a new value  
The DMM 4650 transmits the the software revision number  
*
ubsequent characters are ignored by the DMM 4650 (comment)  
the answer of the DMM 4650 is switched on or off, or the current status is being displayed  
answer  
echo  
[ ] [on] [off]  
[ ] [on] [off]  
the output of the received characters is switched on (echo) or off, or the current status is  
being displayed  
linefeed  
prompt  
[ ] [on] [off]  
[ ] [on] [off]  
the output of an “empty line” after command execution is switched on or off, or the current  
status is being displayed  
tlhe output of the character string “*DMM 4650" after command execution is switched  
on or off, or the current status is being displayed  
?
Help function, displays a listing of the commands  
Help function, displays a listing of the commands  
Help  
Definitions:  
nnnnn  
300 in steps up to 38400  
DD.MM.YY  
xx  
ccccccc  
hh:mm:ss  
day.month.year  
preset number  
data  
hours : minutes : seconds  
34  
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Terminal programs  
The utilized terminal software has to be configured for data transfers (send and receive) with a word length  
set to 8-Bit and no data conversion.  
Setting examples for the program “Terminal”, coming together with Windows 3.lx package:  
Start the terminal software, click the window ‘configuration’ ‘data transmission’, set the values for the  
configuration as described in the paragraph interface settings (see above), and confirm your settings with  
‘ok’. Select ‘conversions no’ in window ‘configuration’ ‘terminal settings’ and conclude your settings with  
acknowledging the ‘ok’ key.  
Enter command backup (do not hit the return key yet), then select the menu ‘transmission’ ‘receive text  
file’. Activate ‘receive control character’ in this window and, after entering the desired file name, confirm  
with ‘ok’. The terminal program is now waiting for data that is going to be stored in the selected file.  
The data transmission starts after pressing the “return” key. The received data is displayed on the PC’s  
screen. After the transmission is finished, select “Cancel” on the lower left-hand side to terminate the data  
transfer.  
Upon completion of the data backup, the contents of the file can be checked using the “read text file”  
command or any text editor. If necessary, the later allows to change the data (only inserting or deleting  
whole text lines, see backup, Restore commands above). The text editor should not decode and re-code  
any characters.  
If the backup data is supposed to be loaded back into the DMM 4650, the function Restore has to be  
activated first (see backup, Restore commands).  
After configuring the PC’s interface settings (configuration’ ‘data transfer’), the filename has to be entered  
in the window ‘transmission’ ‘send text file’. Upon conclusion confirming with “ok” starts the transmission.  
The DMM 4650’s echo gets displayed on the PC screen and upon reception of a complete preset“restored”  
appears on the screen.  
35  
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FACTORY PRESETS  
The installed software v 1.2 provides pre-stored factory presets for sequences, alarms and gongs. Also  
defined are basic settings (menu “System setup”) as well as input and output lines. For direct use of these  
presets, installation examples are to be found on page 31.  
Factory settings, defaults  
The user can edit these defaults according to individual requirements.  
The data of the menus “outputs” “standby” and “sum level” determines the status of the DMM 4650 in  
stand-by mode (no sequence running). A running sequence could lead to a modification of the outputs.  
Upon completion of the sequence, the outputs are switched back to their previous status (stand-by mode).  
Menu  
Parameter 1  
Parameter 2  
Parameter 3  
Parameter 4  
Contrast  
Backlight  
Phones  
0%  
50%  
75%  
Priority  
Prio1 33  
Prio1 1111  
Prio2 66  
Prio2 2222  
Prio3 99  
Password  
Outputs  
Bypass  
Prio3 3333  
all Low (relay open), except B4 = High  
off (relay open)  
0 dB  
Sum Gain  
Attenuation  
Language  
RS 232  
alarms 0dB  
German  
gongs 0dB  
messages 0dB  
announcements 0dB  
9600 Baud  
List of trigger signals  
Delay Trigger starts  
utilization  
Function (see sequence)  
Input Level  
sec.  
type  
sequence  
A1  
Off  
release, S21 to S25, S31 and S33 to S37 wait for High at A1, return message  
for system ready, upon release the signal output starts  
A2  
A3  
A4  
high  
high  
high  
>00,1  
>00,1  
>00,1  
dyn  
dyn  
dyn  
S20  
S21  
S22  
stops each running sequence  
start alarm message M00  
start DIN alarm, pulse trigger  
B1  
B2  
B3  
B4  
high  
high  
high  
high  
>00,1  
>00,1  
>00,1  
>00,1  
dyn  
dyn  
dyn  
dyn  
S23  
S24  
S25  
S26  
start DIN alarm, high = start, low = stop,  
start alarm text sequence, high = start, low = stop,  
4-tone gong, pulse trigger  
Pre-gong (2-tone), pulse trigger  
C1  
C2  
C3  
C4  
high  
high  
high  
high  
>00,1  
>00,1  
>00,1  
>00,1  
dyn  
dyn  
dyn  
dyn  
S27  
S28  
S29  
S30  
start message M01, pulse trigger  
start message M02, pulse trigger  
remote recording M01, pulse trigger, first pulse = start, second pulse = stop  
remote recording M02, pulse trigger, first pulse = start, second pulse = stop  
D1  
D2  
D3  
D4  
high  
Off  
>00,1  
dyn  
S31  
start DIN alarm with announcement key at D2, pulse trigger  
announcement in S31, high = announcement, low = alarm  
start announcement DMM 4650 Mic, high = start, low = stop  
Morse key  
high  
high  
>00,1  
>00,1  
dyn  
dyn  
S32  
S36  
36  
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List of factory preset sequences  
Sequence Nummer  
S 20  
Title  
“stop all”  
Priority  
99  
Stopp trigger  
off  
Stops all running sequences  
Step Command Parameter  
1:  
2:  
Break  
End  
Description: Stops all running sequences with low priorities (all  
factory presets). Upon completion the DMM 4650 returns to the  
stand-by mode.  
Sequence Nummer  
S 21  
Title  
“Alarmtxt”  
Priority  
97  
Stopp trigger  
off  
Start alarm text (message 00) once  
Step  
Command Parameter  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
B2 set  
B3 set  
A2 set  
off  
Description: Turns the sound reinforcement system on (relay A1)  
and waits for acknowledgment (input A1 = system ready). When  
the system is ready, the output B4 (music program off) is opened  
and B2, B3 (mandatory reception E, D) is closed. After closing  
the signaling contact (A2 = alarm text running) the audio controls  
are set to alarm text priority. The alarm text (M00) is given out.  
After the transmission of the message is completed, the se-  
quence is finished and the device returns to the stand-by mode,  
i. e. all line and relay contact settings re-enter the status, prior to  
the start of the sequence.  
2:  
wt  
3:  
Out  
4:  
Out  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
Start  
wt  
8:  
-2dB  
9:  
M 00  
10:  
11:  
Audio  
End  
Sequence Nummer  
S 22  
Title  
“DIN-Alrm”  
Priority  
93  
Stopp trigger  
off  
Start continuous DIN alarm (siren 1200 Hz - 500 Hz, per  
second)  
Command Parameter  
Step  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
B2 set  
B3 set  
A3 set  
off  
2:  
wt  
Description: Turns the sound reinforcement system on (relay A1)  
and waits for acknowledgment (input A1 = system ready). When  
the system is ready, the output B4 (music program off) is opened  
and B2, B3 (mandatory reception E, D) is closed. After closing  
the signaling contact (A3 = alarm signal running) the audio  
controls are set to alarm text priority. The alarm signal (A20) is  
outputted and runs continuously until it is stopped by a sequence  
with a higher priority (e.g. S20). The control of the settings and  
relay contacts is taken over by the stop sequence and upon  
completion the DMM 4650 returns to stand-by mode.  
3:  
Out  
4:  
Out  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
Start  
wt  
8:  
-5dB  
9:  
A 20  
10:  
11:  
Audio  
End  
37  
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Sequence Nummer  
S 23  
Title  
“DIN-Alrm”  
Priority  
95  
Stopp trigger  
B1 Low > 00,1s stc  
Start DIN alarm (key B1 ON), Stop with key B1 OFF  
Step  
Command Parameter  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
B2 set  
B3 set  
A3 set  
off  
Description: Turns the sound reinforcement system on (relay A1)  
and waits for acknowledgment (input A1 = system ready). When  
the system is ready, the output B4 (music program off) is opened  
and B2, B3 (mandatory reception E, D) gets closed. After closing  
the signaling contact (A3 = alarm signal running) the audio  
controls are set to alarm text priority. The output of the alarm  
signal (A20) is started. This sequence is terminated when the  
input B1 is Low (no current). Upon completion, the DMM 4650  
returns to stand-by mode.  
2:  
wt  
3:  
Out  
4:  
Out  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
Start  
wt  
8:  
-5dB  
9:  
A 20  
10:  
11:  
Stop  
End  
Sequence Nummer  
S 24  
Title  
“Alrm-Txt”  
Priority  
91  
Stopp trigger  
B2 Low > 00,1s stc  
DIN alarm > alarm text > DIN alarm sequence, (start key B2  
ON), Stop with key B2 OFF  
Step  
Command Parameter  
1:  
Out  
wt  
A1 set  
In A1 High  
B4 clr  
B2 set  
B3 set  
A3 set  
A2 set  
off  
2:  
Description: Turns the sound reinforcement system on (relay A1)  
and waits for acknowledgment (input A1 = system ready). When  
the system is ready, the output B4 (music program off) is being  
opened and B2, B3 (mandatory reception E, D) gets closed. After  
closing the signaling contacts (A3 = alarm signal, A2 = alarm text)  
the audio controls are set to alarm priority. The output in se-  
quence is: alarm signal 5 sec (A34) 1 sec. pause alarm text  
(M00) 1 sec. pause alarm signal 5 sec. (A34) 1 sec. pause, etc.  
until the input B2 = Low (no current) terminates the sequence.  
Upon termination the DMM 4650 returns to stand-by mode.  
3:  
Out  
Out  
Out  
Out  
Out  
Sum=  
DMM=  
Start  
wt  
4:  
5:  
6:  
7:  
8:  
9:  
-5dB  
10:  
11:  
12:  
13:  
14:  
15:  
16:  
17:  
18:  
19:  
20:  
21:  
22:  
A 34  
Audio  
001,0s  
Delay  
-2dB  
Dly=  
wt  
DMM=  
Start  
wt  
M 00  
Audio  
001,0s  
Delay  
Stop  
Dly=  
wt  
if  
End  
Jump  
End  
09  
38  
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Sequence Nummer  
S 25  
Title  
“Vierklng”  
Priority  
89  
Stopp trigger  
off  
4-tone gong  
Step  
Commend Parameter  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
B2 set  
B3 set  
A4 set  
off  
Description: Turns the sound reinforcement system on (relay A1)  
and waits for acknowledgment (input A1 = system ready). When  
the system is ready, the output B4 (music program off) is being  
opened and B2, B3 (mandatory reception E, D) gets closed. After  
closing the signaling contact (A4 = gong runs) the audio controls  
are set to gong priority. The gong signal is being output and  
fades. After the fade-out the DMM 4650 returns to stand-by  
mode.  
2:  
wt  
3:  
Out  
4:  
Out  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
Start  
wt  
8:  
-5dB  
9:  
G 20  
10:  
11:  
Audio  
End  
Sequence Nummer  
S 26  
Title  
“Vorgong”  
Priority  
87  
Stopp trigger  
B4 Low >00,1s stc  
Start Pre-gong (key B4 on), end of announcement with key  
B4 off  
Step  
Command Parameter  
1:  
Out  
Out  
Out  
Sum=  
DMM=  
Start  
Dly=  
wt  
B4 clr  
B2 set  
B1 set  
-3dB  
2:  
Description: The output B4 (music program off) is opened and in  
succession B2 (mandatory reception E) is being closed. After  
closing the signaling contact (B1 = pre-gong runs) the audio  
controls are set to audio input/pre-gong mix. After 4 seconds the  
signaling contact (B1, ready for announcement) is being opened.  
The audio controls remain unchanged until control input B4  
terminates the sequence. Afterwards, the DMM 4650 re-enters  
the stand-by mode.  
3:  
4:  
5:  
-5dB  
6:  
G 24  
7:  
004,0 s  
Delay  
B1 clr  
Audio  
Stop  
8:  
9:  
Out  
wt  
10:  
11:  
12:  
wt  
End  
Sequence Nummer  
S 27  
Title  
“Message1”  
Priority  
80  
Stopp trigger  
off  
Stepp Command Parameter  
Start Message 1  
1:  
2:  
3:  
4:  
5:  
6:  
Out  
C1 set  
off  
Description: After closing the signaling contact (C1 = message  
runs) the audio controls are set to prioritize this message. After  
the message is finished the DMM 4650 re-enters the stand-by  
mode.  
Sum=  
DMM=  
Start  
wt  
-2dB  
M 01  
Audio  
End  
39  
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Sequence Nummer  
S 28  
Title  
“Message2”  
Priority  
80  
Stopp trigger  
off  
Start Message 2  
Step  
Command Parameter  
1:  
2:  
3:  
4:  
5:  
6:  
Out  
C1 set  
off  
Description: Closing the signaling contact (C1 = message runs)  
switches the audio controls to the priority of the message. After  
the message is finished the DMM 4650 returns to the stand-by  
mode.  
Sum=  
DMM=  
Start  
wt  
-2dB  
M 02  
Audio  
End  
Sequence Nummer  
S 29  
Title  
“EasyRec1”  
Priority  
80  
Stopp trigger  
C3 High >00,1s lat  
Step  
Command Parameter  
Starts the recording of Message 01 (remote recording),  
starts by briefly pressing the input C3 button (menu trigger),  
stops by pressing the input C3 button again  
1:  
Out  
Record  
Out  
Dly=  
if  
C3 set  
M 01  
2:  
3:  
C2 set  
010,0 s  
Stop  
Description: Closing the signaling contact (C3 = remote recording  
runs) starts erasing the message. After successful erasing the  
signaling contact C2 (=start recording) is being closed. The  
recording is terminated by switching the control input C3 (current  
input C3 on). If the termination of the recording mode is not  
recognized, the maximum duration is limited to 10 sec. Name and  
priority of the message stay unaltered and the DMM 4650 returns  
to the stand-by mode.  
4:  
5:  
6:  
Nop  
if  
7:  
Stop  
14  
8:  
Jump  
if  
9:  
Delay  
14  
10:  
11:  
12:  
13:  
14:  
15:  
16:  
Jump  
if  
Audio  
End  
Jump  
Finish  
Out  
Jump  
07  
C2 clr  
11  
40  
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Sequence Nummer  
S 30  
Title  
“EasyRec2”  
Priority  
80  
Stopp trigger  
C4 High >00,1s lat  
Starts the recording of Message 02 (remote recording),  
starts by briefly pressing the input C4 button (menu trigger),  
stops by pressing the input C4 again  
Step  
Command Parameter  
1:  
Out  
Record  
Out  
Dly=  
if  
C3 set  
M 02  
2:  
3:  
C2 set  
010,0 s  
Stop  
Description: Closing the signaling contact (C3 = remote recording  
runs) starts erasing the message. After successful erasing the  
signal contact C2 (=start recording) is being closed. The recor-  
ding is terminated by switching the control input C4 (current input  
C4 on). If the termination of the recording mode is not recognized,  
the maximum duration is limited to 10 sec. Name and priority of  
the message stay unaltered and the DMM 4650 re-enters the  
stand-by mode.  
4:  
5:  
6:  
Nop  
if  
7:  
Stop  
14  
8:  
Jump  
if  
9:  
Delay  
14  
10:  
11:  
12:  
13:  
14:  
15:  
16:  
Jump  
if  
Audio  
End  
Jump  
Finish  
Out  
Jump  
07  
C2 clr  
11  
Sequence Nummer  
S 31  
Title  
“Fire-Mic”  
Priority  
98  
Stopp trigger  
off  
Starts a continuous DIN-alarm, pressing the key “fire micro-  
phone” allows for an announcement via audio input, after  
the key is being released the alarm is continued.  
Step  
Command Parameter  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
2:  
wt  
3:  
Out  
Description: Turns the power of the electro-acoustics sound  
reinforcement system on (relay A1) and waits for acknow-  
ledgment (input A1 = system ready). When the system is ready,  
the output B4 (music program off) is opened and B2, B3 (man-  
datory reception E, D) gets closed. Closing the signaling contact  
(A3 = alarm signal running) switches the audio controls to priority  
for the alarm signal. The alarm signal (A20) is being outputted  
and runs continuously until the alarm is interrupted by a high  
signal (=current) at the control input D2 (=fire announcement).  
As long as the high potential is present at D2, priority is given to  
the audio input. The alarm continues (infinitely) as long as the D2  
potential is low.  
4:  
Out  
B2 set  
B3 set  
A3 set  
-5dB  
5:  
Out  
6:  
out  
7:  
DMM=  
Sum=  
Start  
wt  
8:  
off  
9:  
A 20  
10:  
11:  
12:  
13:  
14:  
15:  
In D2 High  
Break  
Sum=  
wt  
0 dB  
In D2 Low  
07  
Jump  
End  
A sequence with a higher priority (e. g. S 20) stops this sequence.  
The control over settings and relay contacts is taken over by the  
stop sequence. After the stop sequence ends the DMM 4650  
returns to the stand-by mode.  
41  
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Sequence Nummer  
S 32  
Title  
“Ansage”  
Priority  
80  
Stopp trigger  
D3 Low >00,1s stc  
Announcement via recording input DMM 4650 as long as the  
key is being pressed (System input -20 dB).  
Step  
Command Parameter  
1:  
2:  
3:  
4:  
5:  
6:  
Out  
D3 set  
-20dB  
-3dB  
Sum=  
DMM=  
Start  
wt  
Description: Closing the signaling contact (D3 = announcement  
running) switches the audio controls of the sum input to -20 dB  
and the controls of the announcement to -3dB. After the correct  
level was set once in the operation menu (announcement), the  
announcement is made via one of the DMM 4650’s recording  
inputs. When the message has ended the DMM 4650 returns to  
the stand-by mode.  
Ann.  
Stop  
End  
Sequence Nummer  
S 33  
Title  
“BZB-ABC”  
Priority  
95  
Stopp trigger  
off  
BZB ABC alarm  
Step  
Command Parameter  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
B2 set  
B3 set  
A3 set  
off  
Description: Turns the sound reinforcement system’s power on  
(relay A1) and waits for acknowledgment (input A1 = system  
ready). When the system is ready, the output B4 (music program  
off) is opened and B2, B3 (mandatory reception E, D) is closed.  
Closing the signaling contact (A3 = alarm signal running) swit-  
ches the audio controls to the alarm signal’s priority. The signal  
sequence is defined as follows: 1 minute siren interrupted by two  
breaks (=5 * l2sec, siren = 330 - 420 Hz), break 30 seconds and  
repeating of the signal sequence (total duration 150 sec.); the  
utilized alarm preset is A 27 = 12 sec. siren. Afterwards the DMM  
4650 returns to the stand-by mode.  
2:  
wt  
3:  
Out  
4:  
Out  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
Count=  
Start  
wt  
8:  
-5dB  
9:  
0003  
10:  
11:  
12:  
13:  
14:  
15:  
16:  
17:  
18:  
19:  
20:  
21:  
22:  
23:  
24:  
25:  
26:  
27:  
A 27  
Audio  
012,0s  
Delay  
Count  
17  
Dly=  
wt  
if  
Jump  
Jump  
Dly=  
wt  
10  
006,0s  
Delay  
0003  
Count=  
Dly=  
wt  
012.0s  
Delay  
A 27  
Start  
wt  
Audio  
Count  
if  
End  
Jump  
End  
20  
42  
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Sequence Nummer  
S 34  
Title  
“gen-emgc”  
Priority  
95  
Stopp trigger  
off  
Step Command Parameter  
Ship alarm “General Emergency”  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
B2 set  
B3 set  
A3 set  
off  
Description: Turns the sound reinforcemnet system’s power on  
(relay A1) and waits for acknowledgment (input A1 = system  
ready). When the system is ready, the output B4 (music program  
off) is opened and B2, B3 (mandatory reception E, D) gets closed.  
Closing the signaling contact (A3 = alarm signal running) swit-  
ches the audio controls to the alarm signal’s priority. The signal  
sequence is defined as follows: 7 packages 1.5 sec. 800 Hz tone  
with 1.5 sec. break (A30) followed by a 4.5 sec. tone with 1.5 sec.  
break (A31). The sequence runs continuously until it is stopped  
by a sequence with a higher priority (e. g. S 20). The control of  
settings and relay contacts is taken over by the stop sequence.  
After the stop sequence ends, the DMM 4650 returns to stand-by  
mode.  
2:  
wt  
3:  
Out  
4:  
Out  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
Start  
wt  
8:  
-5dB  
9:  
A 30  
10:  
11:  
12:  
13:  
14:  
Audio  
A 31  
Start  
wt  
Audio  
09  
Jump  
End  
Sequence Nummer  
S 35  
Title  
“fireship”  
Priority  
95  
Stopp trigger  
off  
Ship alarm “Fire”  
Command Parameter  
Step  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
B2 set  
B3 set  
A3 set  
off  
Description: Turns the sound reinforcement system’s power on  
(relay A1) and waits for acknowledgment (input A1 = system  
ready). When the system is ready, the output B4 (music program  
off) is opened and B2, B3 (mandatory reception E, D) is closed.  
Closing the signaling contact (A3 = alarm signal running) swit-  
ches the audio controls to the alarm signal’s priority. The signal  
sequence is defined as follows: 1 package 1.5 sec. 800 Hz tone  
with 1.5 sec. break (A32) followed by a 4.5 sec. tone with 1.5 sec.  
break (A31). The sequence runs continuously until it is stopped  
by a sequence with a higher priority (e. g. S 20). The control of  
settings and relay contacts is taken over by the stop sequence.  
When the stop sequence ends, the DMM 4650 returns to stand-  
by mode.  
2:  
wt  
3:  
Out  
4:  
Out  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
Start  
wt  
8:  
-5dB  
9:  
A 32  
10:  
Audio  
A 31  
11:  
12:  
13:  
14:  
Start  
wt  
Audio  
09  
Jump  
End  
43  
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Sequence Nummer  
S 36  
Title  
“ManMorse”  
Priority  
95  
Stopp trigger  
off  
Ship alarm “Manual Morse key”  
Step Command Parameter  
1:  
Out  
A1 set  
In A1 High  
B4 clr  
Description: Turns the sound reinforcement system’s power on  
(relay A1) and waits for acknowledgment (input A1 = system  
ready). When the system is ready, the output B4 (music program  
off) is opened and B2, B3 (mandatory reception E, D) is being  
closed. Closing the signaling contact (A3 = alarm signal running)  
switches the audio controls to the alarm signal’s priority. A  
continuous tone (800 Hz = A33) starts when a current is present  
at the control input D4 and stops after releasing the key. The  
sequence runs continuously until it is stopped by a sequence with  
a higher priority (e. g. S 20). The control of settings and relay  
contacts is taken over by the stop sequence. After the stop  
sequence ends, the DMM 4650 returns to stand-by mode.  
2:  
wt  
3:  
Out  
4:  
Out  
B2 set  
B3 set  
A3 set  
off  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
wt  
8:  
-5dB  
9:  
In D4 High  
A 33  
10:  
11:  
12:  
13:  
14:  
Start  
wt  
In D4 Low  
Break  
Jump  
End  
09  
Sequence Nummer  
S 37  
Title  
“Telefon”  
Priority  
95  
Stopp trigger  
off  
Telephone bell  
Command  
Out  
Parameter  
A1 set  
In A1 High  
B4 clr  
Step  
1:  
Description: Turns the sound reinforcemnet system’s power on  
(relay A1) and waits for acknowledgment (input A1 = system  
ready). When the system is ready, the output B4 (music program  
off) is opened and B2, B3 (mandatory reception E, D) is closed.  
Closing the signaling contact (A3 = alarm signal running) swit-  
ches the audio controls to the alarm signal’s priority. The signal  
sequence is defined as follows: 1 sec. signal (A28), 4 sec. break.  
It is being repeated five times. Using different signal periods  
offers the opportunity to realize a code call system. When the call  
signal ends, the DMM 4650 returns to stand-by mode.  
2:  
wt  
3:  
Out  
4:  
Out  
B2 set  
B3 set  
A3 set  
off  
5:  
Out  
6:  
Out  
7:  
Sum=  
DMM=  
Count  
Start  
wt  
8:  
-5dB  
9:  
0005  
10:  
A 28  
11:  
12:  
13:  
14:  
15:  
16:  
17:  
Audio  
Dly=  
wt  
004,0s  
Delay  
if  
Count  
End  
Jump  
End  
10  
44  
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List of factory preset gong signals  
gong no.  
title  
prior.  
type  
bar  
attack release start repeat cnt rep-del  
G20  
Vierklng  
00  
fourtone  
1 = A  
04 ms  
06 ms  
07 ms  
10 ms  
XL  
XL  
XL  
XL  
no  
2 = B  
3 = C  
4 = D  
1,5 sec  
1,5 sec  
1,5 sec  
no  
no  
no  
no  
G21  
G22  
Dreiklng  
Zweiklng  
00  
00  
threetone  
twotone  
1 = A  
2 = B  
3 = C  
04 ms  
06 ms  
07 ms  
XL  
XL  
XL  
no  
1,5 sec  
1,5 sec  
1 = A  
2 = B  
04 ms  
06 ms  
XL  
XL  
no  
1,5 sec  
0001  
0001  
8,0 sec  
8,0 sec  
G23  
G24  
Einklang  
Vorgong  
00  
00  
onetone  
twotone  
1 = A  
04 ms  
XL  
no  
1 = A  
2 = B  
04 ms  
06 ms  
XL  
XL  
no  
0,5 sec  
0001  
9,0 sec  
G25  
Türgong  
00  
fourtone  
1 = A  
2 = B  
3 = A  
4 = B  
04 ms  
06 ms  
07 ms  
10 ms  
M
M
XL  
XL  
no  
0,5 sec  
0,5 sec  
0,5 sec  
no  
no  
G26  
Alrmgong  
00  
twotone  
1 = A  
2 = B  
04 ms  
06 ms  
M
M
no  
0,5 sec  
endless  
0,5 sec  
Definitions for the “gong table”: bar A = high frequency, to bar D = low frequency  
no = parameter not available  
attack = bar attack (ms)  
release = bar release (XXS = short, to M = middle to XXL = long)  
start = time (sec.) to bar x attack counting from previous bar  
repeat cnt = counter of how many times the gong period gets repeated  
rep-del = time between two gong periods  
45  
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List of factory preset alarm signals  
Alarm-  
number  
Freq. 1  
Hz  
Freq. 2 time  
Hz sec  
Title  
Priority  
Type  
Ratio  
repeat  
A20  
A21  
A22  
A24  
A27  
A34  
DIN-Alrm  
slow Whp  
Sirene  
00  
00  
00  
00  
00  
00  
Uni-Sweep  
Uni-Sweep  
Bi-sweep  
Bi-sweep  
Bi-sweep  
Uni-Sweep  
1200  
500  
500  
1,00  
14%  
14%  
14%  
14%  
14%  
14%  
endless  
endless  
endless  
30x  
1200  
800  
420  
420  
500  
1,00  
2,00  
2,00  
2,00  
1,00  
400  
BZB-Luft  
BZB-ABC  
DIN-Alrm  
330  
330  
6x  
1200  
5x  
Alarm-  
number  
time 2  
sec  
Ratio  
Freq. 1 time 1  
Hz sec  
Freq. 2  
Hz  
Title Priority  
Type  
repeat  
A23  
A28  
Post  
00  
00  
jumptone  
jumptone  
925  
440  
0,50  
0,0  
1075  
5494  
0,50  
0,05  
14%  
50%  
endless  
20x  
Telefon  
Alarm-  
number  
Frequency ontime  
Hz sec  
offtime  
sec  
Title  
Priority Type  
Ratio  
Number  
A26  
A29  
A30  
A31  
A32  
BZB-Fire  
AbndnShp  
Schiff1  
00  
00  
00  
00  
00  
Burst  
Burst  
Burst  
Burst  
Burst  
420  
800  
800  
800  
800  
12,00  
12,00  
1,50  
1,50  
1,50  
1,50  
14%  
14%  
14%  
14%  
14%  
5x  
12,00  
1,50  
4,50  
1,50  
endless  
14x  
2x  
Schiff2  
Schiff3  
2x  
Alarmnumber  
Title  
Priority  
Type  
Frequency in Hz  
time in sec  
Ratio  
A25  
A33  
BZB-Entw  
800Hertz  
00  
00  
tone  
tone  
420  
800  
60,00  
14%  
14%  
endless  
46  
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APPENDIX  
Troubleshooting  
In stand-by mode the DMM 4650 runs a number of test routines in order to detect device faults at an early  
stage. Errors are indicated by the flashing of the green POWER LED. With fatal errors or when errors  
start to appear more often the blinking of the LED gets faster and the fault relay drops. At the same time,  
the audio input is connected directly to the output via the bypass relay.  
The menu “self test” provides a listing of error numbers and occurence of the following messages:  
No:  
Error Name  
Function test  
1
2
3
4
5
6
7
8
9
Reset  
Power-On counter, no message displayed  
Software  
Modul-ID  
+/- 15V  
Bypass  
Fault  
faulty micro processor interrupt  
changing number and activity of control ports (A-D) during power-on  
tests internal supply-voltage ± 15V  
function of audio bypass relay (hardware and software)  
function of fault relay (hardware and software)  
data error of passwords and their priorities  
data error in trigger settings  
User-mem  
Trig-mem  
Sequ-mem data error in user presets of sequences  
10  
Stop-mem  
Alrm-mem  
data error in user settings of stop triggers  
data error in alarm user presets  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
Gong-mem data error in gong user presets  
Msg-dir  
Msg-chsu  
ARS-RAM  
ARS-mod  
Flash  
data error in message file management  
data error in message audio data (see also “message” on page 14 “*”)  
communication error in DSP processor  
software error in DSP processor  
tests for a changed number of flash memory cards  
faulty blocks in flash memory has been occurred later  
error at writing into EEPROM  
Block  
EEPROM  
ROM  
data modification of the microprocessor’s EPROM  
47  
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User questions, hints  
This chapter tries to explain some of the DMM 4650’s functions that first may seem somewhat surprising  
for the user and to provide the amended solution.  
Question:  
Recording a message is suddenly interrupted by the DMM 4650?  
Explanation: a) An external contact initiated a sequence with a higher priority (e. g. alarm) than the one of current  
user. This reaction is necessary and intended, since no user with a priority level 1 or 2 should  
be able to block the alarm functions.  
Solution: a)  
Explanation: b) Audio memory overrun.  
Solution: b) Deleting message numbers that are no longer needed re-provides memory, or install additional  
audio memory (user 3) in case of need.  
Record the message with the same number (delete? = yes) after the priority sequence ends.  
Explanation: c) During recording the DMM 4650 has recognized a defect memory address, which is marked as  
bad and is no longer available for future recordings (bad block).  
Solution: c)  
Start a new recording using the same message number (delete? = yes).  
Question:  
The message number xx cannot be recorded. The message “access denied” is displayed.  
Explanation: a) The number has been assigned to a user with higher priority. You cannot delete this message.  
Solution: a) Select another message number.  
Explanation: b) This also happens during a remote recording, if the desired sequence for the message mistakenly  
has been recorded by the installer, without programming access for users with a lower priority.  
Solution: b)  
User 3 has to delete this message.  
Question:  
How can I test a sequence (only user 3), without audio transmission?  
Explanation:  
The “System setup” > “Bypass” menu provides the possibility to switch the audio bypass relay to  
direct connection (input > output) for the duration of the test. This procedure interrupts the audio  
connection DMM signals > output; except when the test sequence itself switches off the relay again.  
Question:  
What happens when the operation voltage of 24 volts drops for several seconds during the  
transmission of an alarm sequence?  
Solution:  
In case one of the factory preset alarm signals (trigger A3, A4, B1, or B2) was used re-starts the  
sequence as long as the alarm button is still pressed.  
Question:  
What do I have to do when the green POWER LED on the front panel blinks?  
Solution:  
The flashing LED is caused by the DMM 4650’s self-test routine. The LED blinks whenever an  
error is being detected. Detailed information on the cause of the error are only available to the  
service provider (user 3) (see also on page 29). Enter the user 3’s password in the “self-test”  
menu, write down the displayed error messages, and using the soft key “quit” you have to delete  
all errors one by one.  
If the LED starts blinking again, this shows that the error is still present. Look for the cause that  
generates the problem and try to solve it - otherwise send the appliance to the manufacturer for  
servicing.  
48  
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Question:  
How do I replace a 4-tone gong signal by a 3-tone gong? In accordance to the factory presets,  
the trigger is connected to the control input B3 and it should stay that way.  
Solution:  
Performing the following changes is only possible for user 3!  
The sequence S 25 which initiates the 4-tone gong signal G 20 is being started using the input B3.  
The selected 4-tone gong signal G 20 has to be changed to the 3-tone gong signal G21 by  
altering line 9 of sequence S 25 (see also on page 39). After selecting an unused user program  
memory number (e. g. S 05), the displayed question “store?” has to be answered with “yes” to  
store the new settings. Select the trigger B3 in the “trigger” menu and change the start sequence  
from S 25 to S 05. Using the soft key “set” activates the new trigger setting.  
Question:  
I would like to use the start/stop function of the factory presets S 28, S 30 for playback and  
remote recording of the message M 02 ( see also on page 36, 40/41). My installation should  
include the inputs B3 and B4 instead of the inputs C3 and C4 reserved in the preset.  
The indication lamps are not needed which makes retrofitting the port C not necessary.  
Solution:  
Performing the following changes is only possible for user 3!  
For when the indication signals are not needed, the steps of the sequences S 28 (play message  
M 02) and S 30 (record M 02) stay unaltered. Only the button C4’s stop operation is altered into  
B4 in the sequence S 30. The new setting is re-stored under S 30. The trigger B3 is selected in  
the “trigger” menu and the start sequence is changed from S 25 into S 28. Confirming the soft  
key “set” activates this new setting (play M 02). Now, you have to select the trigger B4 and  
change the start sequence S 26 into S 30. Afterwards confirm your settings (record M 02)  
using the soft key “set”.  
49  
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EXAMPLES FOR ALARM TEXTS  
Caution:  
The following examples are not programmed in the message memory. They only serve  
as examples.  
Technical malfunction 1  
“Ladies and gentlemen, unfortunately we are experiencing a technical problem.  
There is no reason to be concerned. Please stay calm, we are working on the solution."  
Technical malfunction 2  
“Ladies and gentlemen, we are experiencing a technical malfunction.  
For the sake of safety we ask you to please leave the hall using the marked exits."  
Technical malfunction 3  
“Ladies and gentlemen, may we have your attention, please.  
Because we are experiencing some technical difficulties we kindly ask you, to leave the hall  
immediately using the marked exits.  
Please remain calm and follow the instructions of the authorized personal."  
Fire  
“Attention, fire alarm.  
Please use the marked exits to leave the hall immediately. Follow the instructions of the  
authorized personal.  
“Attention, fire alarm: please remain calm.”  
End of the performance  
“Ladies and gentlemen, today’s convention is coming to its end.  
The exits will soon be closed for the public. We sincerely hope you had a pleasant stay and are  
looking forward to your return."  
50  
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Specifications DMM 4650  
Operating Voltage  
Power consumption  
21.6 - 31.2VDC  
max. 18 watts (without retrofitting kits 90204)  
Input voltage  
Input  
0.775V/0dBu  
*Line Input  
*Rec Input  
*Mic Input  
Input  
0.775V/0dBu  
0.775V/0dBu  
1.4mV/ -54dBu at 600 ohms  
3.8V/+14dBu  
Max. Input voltage  
*Line INPUT  
*Rec INPUT  
*Mic INPUT  
30V/+32dBu  
30V/+32dBu  
50mV/ -24dBu at 600 ohms  
* Using several inputs simultaneously results in a change of the stated voltages.  
Input impedance  
Input(bal.)  
Input (unbal.)  
Line Input  
REC Input  
Mic INPUT  
20kOhm  
10kOhm  
20kOhm  
20kOhm  
1,4kOhm  
Output voltage  
Output  
Pre-Output  
Phones  
0.775V/0dBu  
3.2V/+12dBu  
3.2V/+12dBu  
Max. Output voltage  
Output impedance  
Output  
Pre-Output  
Phones  
3.8V/+14dBu  
9V/+21dBu  
9V/+21dBu  
Output (bal.)  
Output (unbal.)  
Pre-Output  
Phones  
136 Ohm  
68 Ohm  
220 Ohm  
220 Ohm  
Frequency response  
Input > Output  
Mic Input  
Others  
20Hz-20kHz -3/0dB  
20Hz-16kHz -18/3dB  
20Hz-16kHz +0/-3dB  
Signal-to-noise ratio  
THD  
Input > Output  
Message  
> 108dB (A-weighted)  
> 90dB (A-weighted)  
Input > Output  
Message  
< 0.03% (at 1kHz)  
< 0.05% (at 1kHz)  
Data format  
AD/DA converter  
DSP internal  
16 bit linear  
24 bit  
Sampling rate  
Control inputs  
35kHz  
E
E
< ±5V = Low  
> ±10V = High  
in  
in  
Control outputs  
Dimensions  
Weight  
floating relay contacts  
1A at 24VDC  
483 X 43.6 X 225 (W x H x D) 19in, 1HU  
4kg  
Retrofitting kits  
Port C or D  
NRS 90204  
4 control inputs and outputs  
Memory extension  
NRS 90205  
message memory extension  
Output transformer  
Input transformer  
NRS 90210  
NRS 90211  
53  
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WARRANTY  
The factory grants warranty covering all verifiable material and manufacturing faults for a period of 36  
months from the original date of purchase on. Warranty claims will only be upheld if valid, i. e. fully  
completed warranty forms, are submitted. This warranty shall not cover damage caused by incorrect or  
improper operation.  
Any claim to warranty shall become null and void in the event of modifications to the equipment being  
made by third parties or the purchaser himself.  
54  
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