Altinex Switch MT110 101 User Manual

MULTITASKER™  
MANUAL PART NUMBER:
 
400-0197-005  
MT110-101/103  
8 X 8 MONO AUDIO MATRIX SWITCHER  
CARD FOR MULTITASKER™  
USER’S GUIDE  
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MULTITASKER™  
·
This equipment has been tested and found to  
comply with the limits for a Class A digital  
device, pursuant to Part 15 of the FCC Rules.  
These limits are designed to provide reasonable  
protection against harmful interference when the  
PRECAUTIONS / SAFETY WARNINGS  
1
Please read this manual carefully before using your  
MT110-101/103. Keep this manual handy for future  
reference. These safety instructions are to ensure  
the long life of your MT110-101/103 and to prevent  
fire and shock hazard. Please read them carefully  
and heed all warnings.  
equipment is operated in  
a
commercial  
environment. This equipment generates, uses,  
and can radiate radio frequency energy and, if  
not installed and used in accordance with the  
instruction manual, may cause harmful  
interference to radio communications. Operation  
of this equipment in a residential area is likely to  
cause harmful interference in which case the  
user will be required to correct the interference  
at his own expense.  
1.1 GENERAL  
·
Qualified ALTINEX service personnel or their  
authorized representatives must perform all  
service.  
1.2 INSTALLATION  
·
To prevent fire or shock, do not expose this unit  
to rain or moisture. Do not place the  
MT110-101/103 in direct sunlight, near heaters  
or heat radiating appliances, or near any liquid.  
Exposure to direct sunlight, smoke, or steam  
can harm internal components.  
·
Any changes or modifications to the unit not  
expressly approved by ALTINEX, Inc. could void  
the user’s authority to operate the equipment.  
·
·
·
·
Handle the MT110-101/103 carefully. Dropping  
or jarring can damage the card.  
Do not pull the cables that are attached to the  
MT110-101/103.  
Insert the card carefully into the slots of the  
MultiTasker™ without bending any edges.  
When removing a card, please make sure that  
the card to which it is attached is also pulled out  
simultaneously.  
1.3 CLEANING  
·
Clean only the connector area with a dry cloth.  
Never use strong detergents or solvents, such  
as alcohol or thinner. Do not use a wet cloth or  
water to clean the card. Do not clean or touch  
any component or PCB.  
1.4 FCC / CE NOTICE  
·
This device complies with Part 15 of the FCC  
Rules. Operation is subject to the following two  
conditions: (1) This device may not cause  
harmful interference, and (2) this device must  
accept any interference received, including  
interference that may cause undesired  
operation.  
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MULTITASKER™  
ABOUT YOUR MT110-101/103  
2
TECHNICAL SPECIFICATIONS  
3
The MT110-101/103 is a Balanced Audio Matrix  
Switching Card. This card allows any input to be  
independently switched to any of the outputs. All  
inputs and outputs can be wired for unbalanced  
audio, or balanced audio allowing longer cable runs  
and superior noise resistance.  
FEATURES/DESCRIPTION  
GENERAL  
Inputs  
MT110-101/103  
(4) 5-pin Terminal  
Blocks  
Input Connectors  
Outputs  
(4) 5-pin Terminal  
Blocks  
Stereo or Mono Audio  
The MT110-101 is an 8x8 audio matrix with a fixed  
gain of 0db. The MT110-103 is an 8x8 audio matrix  
with variable gain for each output.  
Output Connectors  
Compatibility  
Table 1. MT110-101/103 General  
As “transparent” distribution amplifiers, these cards  
utilize AC coupling on their inputs for ideal signal  
transfer characteristics. Switching is controlled  
with easy-to-use ASCII commands from a control  
system or computer connected to the RS-232 port  
MECHANICAL  
MT110-101/103  
Basic Enclosure Slots  
Required  
Two  
Weight  
1.0 lb (0.45 kg)  
Black  
of  
a
MultiTasker™ enclosure.  
Each card  
Connector Panel  
T° Operating  
T° Maximum  
Humidity  
consumes two slots in a MultiTasker enclosure,  
and all input and output connections are  
accomplished via captive screw terminal blocks.  
10°C-35°C  
0 to 50°C  
90% non-condensing  
40,000 hrs  
MTBF (calc.)  
Although designated as an 8x8 matrix switcher, the  
MT110-101/103 can be used in a variety of ways to  
provide different capabilities. For example, one 8x8  
card can handle mono audio while two 8x8 cards  
handle stereo audio, or a single 8x8 card can be  
used to create an 4x4 stereo audio matrix. The  
MT110-101 is a standard matrix switcher, whereas  
the MT110-103 has individual volume trim control  
on each output.  
Table 2. MT110-101/103 Mechanical  
ELECTRICAL  
MT110-101/103  
Input Signals  
Max Level  
Impedance  
0 dBu  
10k Ohms  
Audio Throughput  
0 dB unbalanced,  
6dB balanced  
Gain  
The HelpInside™ feature allows programmers to  
have access to command structures and control of  
the MT110-101/103 from any terminal using the  
[HELP] command. In conjunction with Altinex’s  
unique command structure, HelpInside™ provides  
easier-than-ever control of MultiTasker™ cards  
with simple keyboard commands. No typing of long  
keyboard strings is necessary.  
10 Hz to 20 kHz  
(+/- 0.05 dB)  
-100 dB @ 20 kHz  
>80 dB, 10 Hz to 20 kHz  
Frequency Response  
Noise Floor  
CMRR  
Output Signals  
Level  
Impedance  
Gain  
1V p-p  
Low – drives 600 Ohms  
0 dB  
Power from MT100-100  
MT110-101 +6V  
MT110-103 +6V  
Total Power  
135mA  
110mA  
1.5W  
Table 3. MT110-101/103 Electrical  
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MULTITASKER™  
DESCRIPTION OF MT110-101/103  
4
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MULTITASKER™  
APPLICATION DIAGRAM  
Diagram 1: Typical Setup  
5
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MULTITASKER™  
Diagram 2: MT110-103 Internal View  
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MULTITASKER™  
Diagram 3: MT110-101 Internal View  
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MULTITASKER™  
7.1.1 RS-232 INTERFACE  
The RS-232 commands,  
INSTALLING YOUR MT110-101/103  
6
for  
the  
Step 1. Turn off power to the MultiTasker™  
MT110-101/103, are in a simple ASCII character  
enclosure.  
format.  
Step 2. Slide the MT110-101/103 into an available  
slot in the MultiTasker™ Basic Enclosure  
in order to connect to the bus. Make sure  
that the MT110-101/103 card fits into  
place. Secure the card to the  
MultiTasker™ by tightening the retainer  
screws located on the top and bottom of  
the MT110-101/103 card.  
1. Square brackets “[ ]” are part of the  
command.  
2. Use uppercase letters for all commands.  
The cards in a MultiTasker™ system are  
capable of performing various functions, as well  
as providing feedback to the user or control  
system. Commands instruct a card to perform  
specific actions or request information about the  
status of the card. Some commands do both  
simultaneously.  
Step 3. Connect audio cables from the audio  
source to the input connector of the  
MT110-101/103. Connect the output  
connectors of the MT110-101/103 to the  
audio equipment through an audio cable.  
A command that instructs the card to simply  
perform an action will generate feedback of “[ ]”.  
The open bracket immediately followed by a  
close bracket indicates the card received a valid  
Step 4. Starting from the left, identify the slot  
number where the MT110-101/103 card is  
plugged into the Enclosure and note that  
it is for RS-232 control.  
command.  
If the command requested  
information from the card, the feedback  
generated by the card is the acknowledgement  
of having received a valid command. Invalid  
commands generate feedback of “[ERR001]”.  
Step 5. Turn on power to the MultiTasker™  
enclosure.  
Step 6. The LED on the card panel will turn red  
indicating that the card is in full operation.  
An LED that is blinking red indicates that  
the card is experiencing a problem. If the  
LED is blinking, see Troubleshooting  
Guide in section 8.  
After processing a command, an “OK” or  
[ERR001] will be returned as feedback if ‘F’ is  
included at the end of a command string.  
Commands ending in ‘S’ will be saved into  
memory. Commands not ending in ‘S’ will still be  
executed, but will not be restored when the  
system is reset or powered off, then on.  
OPERATION  
7
7.1 RS-232 CONTROL  
7.2 DESCRIPTION OF COMMANDS  
The MT110-101/103 has many advanced remote  
control capabilities, which are accessible through  
standard RS-232 communication. Actual control  
may be accomplished through a computer control  
system or any other device capable of sending  
RS-232 commands.  
Each command consists of three parts:  
Function, Card ID, and Unit ID.  
[ Function , Card ID , Unit ID ]  
Example: [VERC3U2]  
VER = Function  
C3 = Card ID or Group ID  
U2 = Unit ID  
For Function, see a detailed explanation under  
each command description.  
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MULTITASKER™  
The Card ID is a unique identifier. It is equal to  
the enclosure slot number, or it may be an  
assigned value. As the slot number, the value  
can range from 1 to 4 up to 1 to 20 depending  
on the enclosure. If the value is assigned, the ID  
may be a maximum of 99.  
2. [C]  
This command receives the status of the card.  
Command Format: [CnUi]  
Cn = card ID (n = # from 1 to max slots)  
Ui = unit id (i = 0 to 9)  
Card ID 0 (C0) is used for the controller and  
cannot be reassigned.  
Example:  
There is an MT110-103 card in slot 4. Sending  
the command [C4] to the MultiTasker™ will yield  
feedback similar to the following:  
The Group ID is a number representing a group  
of cards defined with the [WR] command. When  
using the Group ID, all cards in the group will  
perform the given instruction.  
CONFIGURATION:  
Changing the position of a card will significantly  
affect the commands recorded on software  
definitions or third-party control systems.  
Matrix:8x8, In-Offset=0, Out-Offset=0  
CONNECTION  
In01-Out01 ON  
In02-Out02 ON  
In01-Out03 ON  
In01-Out04 ON  
In01-Out05 ON  
In01-Out06 ON  
In01-Out07 ON  
In01-Out08 ON  
OUTPUT VOLUME  
32/32  
The Unit ID has a value from 0 to 9. Unit ID 0  
should be used for single unit operation. If the  
Unit ID is set to zero, each command may be  
used without Ui. Use the command [SETU0],  
as explained in the MT100-100 User’s Guide.  
32/32  
32/32  
32/32  
32/32  
32/32  
Example:  
32/32  
[VERC3]:  
[VERC3Ui]: For Unit ID other than Zero  
[VERC3]: Equivalent to [VERC3U0]  
For Unit ID Zero  
32/32  
In this example, Input 1 is connected to all  
outputs except for Output 2, which is connected  
to Input 2. All outputs are turned on, or enabled.  
1. [VER]  
This command displays the software version  
and card type for the card.  
The volume level for each output is shown next  
to its connection. The maximum level is 32 out  
of 32 which is equal to a gain of one.  
Command Format: [VERCnUi]  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
If there is no card in slot 4, sending the [C4]  
command will not return any feedback.  
3. [CnS]  
This command saves the input to output  
connections, on/off status and output volume  
settings for each output. The saved  
configuration will be restored after the system is  
reset or powered off, then on.  
Send the command [VERC4] to check the  
version of the MT110-103 with card ID #4. The  
system will return the following feedback:  
[MT110-103 690-0152-011 C04]  
MT110-103  
= model number  
Command Format: [CnSUi]  
690-0152-011 = software version  
Cn = Card ID (n = # from 1 to max slots)  
C04  
= card ID  
S
= Save configuration  
Ui = Unit ID (i = # from 0 to 9)  
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MULTITASKER™  
Example:  
Example:  
If Input 1 is connected to all outputs, but only 1  
through 4 are on, the feedback after sending the  
command [C4S], for slot 4, would be similar to  
the following:  
A MultiTasker™ with Unit ID #1 has a front  
panel with part number MT101-105 and  
contains an MT110-103. Send the command  
[?U1] and receive the following feedback:  
CONFIGURATION:  
[(MT101-105U1)(MT110-103C04)]  
Matrix:8x8, In-Offset=0, Out-Offset=0  
MT101-105U1 = Panel Number and Unit ID  
MT110-103C04 = An MT110-103 is in slot 4  
CONNECTION  
In01-Out01 ON  
In01-Out02 ON  
In01-Out03 ON  
In01-Out04 ON  
OUTPUT VOLUME  
32/32  
32/32  
32/32  
32/32  
5. [?C]  
This command will return general information  
about the card and its status.  
Command Format: [?CnUi]  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = from 0 to 9)  
Example:  
In01-Out05 OFF 32/32  
In01-Out06 OFF 32/32  
In01-Out07 OFF 32/32  
In01-Out08 OFF 32/32  
[SAVED]  
The MT110-103 in slot 4 has Input 1 connected  
to all outputs. All outputs are on. Send the  
command [?C4] to receive feedback status  
similar to the following.  
FEEDBACK COMMANDS ?, ?Cn, STA1 & STA0  
The next four commands are a function of both  
the card and the front panel and are only  
available with MultiTasker™ Front Panel  
systems that have the following firmware:  
[(MT110-103C04)(VR690-0152-011C04)  
(ON11111111C04)(MA0101010101010101C04)  
(MX8x8C04)(VO3232323232323232C04)  
(MU0C04)]  
690-0122-015  
690-0123-004  
690-0124-018  
= Version 015 or later.  
= Version 004 or later.  
= Version 018 or later.  
All status feedback is enclosed in brackets, “[ ]”.  
Each data field within the status is enclosed in  
parentheses. The first two characters identify  
the status type. The last three characters are  
the card’s ID.  
Send the command [VER], and the system will  
respond with feedback that includes the  
following:  
690-0122-015 690-0123-004 690-0124-018  
MT110-103  
= Card Model Number  
= Firmware version  
Check the last three digits against the numbers  
above to determine if the option is available.  
VR690-0152-0011  
ON11111111  
MA0101010101…  
MX8x8  
VO32323232…  
MU0C04  
= Output ON/OFF status  
= Matrix I/O connections  
= Matrix Configuration  
= Output Volume Levels  
= Mute On/Off Status  
4. [?]  
This command will return information about the  
MultiTasker™ and cards installed in the unit.  
Command Format: [?Ui]  
The ON/OFF status line is read from left to right  
as outputs 1-8. A ‘1’ indicates the output is on  
and a ‘0’ indicates the output is off.  
Ui = Unit ID (i = from 0 to 9)  
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MULTITASKER™  
The matrix I/O connections are also read left to  
right representing outputs 1-8 and the input to  
which each is connected. The first two digits  
show the input number to which Output 1 is  
connected. The third and forth digits are for  
Output 2 and so on.  
7. [STA0]  
This command disables automatic feedback  
from the card and front panel. The command  
affects any card with auto-feedback capability,  
not just the MT110-103. The default at power on  
or reset is STA0, OFF.  
The matrix configuration shows the current  
configuration of the matrix, either 16x8, 8x4 or  
4x2.  
Command Format [STA0]  
8. [ON]  
The output volume levels are read the same as  
the matrix connections. The first two digits are  
the volume level for Output 1, the third and forth  
are for Output 2 and so on.  
This command will enable an output of a single  
card, or a group of cards.  
SINGLE CARD OPERATION  
Command Format: [ONmCnUi]  
m = Output No. (m = # from 1 to 8)  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
The mute status is either a ‘1’ or a ‘0’. A ‘1’  
indicates the card outputs are muted. A ‘0’  
means the outputs are on.  
6. [STA1]  
This command enables automatic feedback  
from the front panel. The command affects any  
card with auto-feedback capability, not just the  
MT110-103. The default at power on or reset is  
STA0, off. For more details, see the [?Cn]  
command definition.  
There is an MT110-103 card in slot 5. All of the  
outputs on the card are off.  
1) [ON1C5]:  
Turns on only Output 1 of the  
MT110-103 card.  
2) [ONC5]:  
Turns on all outputs of the  
MT110-103 card.  
Command Format [STA1] = On  
Feedback Prefix Definitions:  
GROUP OPERATION  
MT  
VR  
ON  
MA  
MX  
VO  
MU  
Card Model Number  
Firmware Revision  
Output On/Off Status  
Matrix Connections  
Matrix Configuration  
Output Volume  
This command enables output ‘m’ for each card  
in group ‘k’ of unit ‘I’.  
Command Format: [ONmGkUi]  
m = Output number (m = # from 1-8)  
Gk = Group number (k = # from 1-8)  
Ui = Unit ID (i = # from 0-9)  
Example:  
Mute On/Off  
Example 1:  
[ON1G1]: Turns ON Output 1 for each card in  
Group 1. See the GROUP commands for a  
detailed explanation.  
Command = [I2O*C4]  
Feedback = (MA020202…C04)  
MA  
= Matrix Connections  
0202.. = Input 2 to Output 1  
Input 2 to Output 2  
etc…  
C04 = Card/Slot number  
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MULTITASKER™  
PATH OPERATION  
Example:  
Card 5 has Output 1 on.  
commands may be used to turn off the input.  
The path for outputs on the same or multiple  
cards may be preloaded. This will set the path  
for the output, but it is not active until the switch  
command, [SW], is executed. Commands  
ending in ‘P’ are not executed immediately.  
The following  
1) [OFF1C5]:  
2) [OFFC5]:  
Turns off only Output 1.  
Turns off all outputs.  
GROUP OPERATION  
Command Format: [ONmCnUiP]  
This command disables output ‘m’ for each card  
in group ‘k’ of unit ‘i’.  
m = Output No. (m = # from 1 to 8)  
Cn = Card ID (n = slot # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Command Format: [OFFmGkUi]  
m = Output No. (m = # from 1-8, * for all)  
Gk = Group ID (k = # from 1-8)  
Ui = Unit ID (i = # from 0-9)  
Example:  
P
= Path  
Example:  
An MT110-103 card is in slot 4 and another in  
slot 8. Enable Output 1 of C4 and Output 3 of  
C8 simultaneously by sending the following:  
1. [OFF1G1]: Turns off Output 1 for each card  
in Group 1.  
[ON1C4P]  
[ON3C8P]  
[SW]  
2. [OFFG1]: Turns off all outputs for each  
card in Group 1.  
PATH OPERATION  
If "F" is included, use the [ONmCnPF] command  
or the [ONmCnFP] command.  
This command will set the path for the output,  
but it is not active until the switch command,  
[SW], is executed. Commands ending in "P" are  
not executed immediately. The path for outputs  
on multiple cards or the same card may be  
preloaded.  
FEEDBACK OPERATION  
After processing a command, an “OK” or  
“[ERR001]” will be returned as feedback if ‘F’ is  
included at the end of a command string.  
Command Format: [ON…..F]  
Example:  
Command Format: [OFFmCnUiP]  
m = Output (m = # from 1 to 8, * for all)  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
[ON1C2F]: if path is not set  
[ON1C2PF]: if path is set  
9. [OFF]  
P
= Path  
This command disables one or all outputs of a  
single card or a group of cards.  
Example:  
There are two MT110-103 cards in slots 4 and  
8. Disable Output 1 of card 4 and Output 3 of  
card 8 simultaneously using the following  
commands:  
SINGLE CARD OPERATION  
Command Format: [OFFmCnUi]  
m = Output No. (m = # from 1 to 8)  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
[OFF1C4P]  
[OFF3C8P]  
[SW]  
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MULTITASKER™  
If ‘F’ is included, use the [OFFmCnPF]  
command or the [OFFmCnFP] command.  
In01-Out01 ON 32/32 P=02  
In01-Out02 ON 32/32 P=OFF  
FEEDBACK OPERATION  
In01-Out03 ON 32/32 P=OFF  
etc…  
After processing a command, an “OK” or  
“[ERR001]” will be returned as feedback if ‘F’ is  
included at the end of a command string.  
The notation "P=" at the end of the line indicates  
the path condition is active. "P=02" on the  
Output 1 line indicates that after the [SW]  
command, Input 2 will be connected to  
Output 1.  
Command Format: [OFF…..F]  
Example:  
[OFF1C2F]: if path is not set  
[OFF1C2PF]: if path is set  
10. […S] – SAVE  
The notation "P=OFF" on lines 2 and 3 indicates  
that Outputs 2 and 3 will be turned off after the  
[SW] command is executed.  
13. [SW] – SWITCH  
This command will save the configuration  
command being sent in memory.  
This command immediately connects inputs and  
outputs previously set with the PATH command.  
The command switches all paths set on this  
card and all other cards in the enclosure.  
When  
sending the command [I1O1C4S], after reset or  
power up, Input 1 will be connected to Output 1  
on C4. This command only saves the Input 1 to  
Output 1 connection above. In order to save all  
the current settings, use the [CnS] command.  
Example:  
[ON1C4P]  
[OFF3C8P]  
[SW]  
11. […F] – FEEDBACK  
After processing a command, an “OK” or  
“[ERR001]” will be returned as feedback if ‘F’ is  
included at the end of a command string.  
14. [IO]  
This command connects a single input to a  
single output in the current matrix configuration.  
12. […P] – PATH  
This command will set the path for the output,  
but it is not active until the switch command,  
[SW], is executed. Commands ending in ‘P’ are  
not executed immediately. The path for outputs  
on multiple cards or the same card can be  
preloaded. See the examples for the [ON] and  
[OFF] commands.  
Command Format: [ImOxCnUi]  
m = Input (m= # from 1 to 8)  
x
= Output (x = # from 1 to 8)  
Cn = Card ID (n = slot # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
Example:  
There is an MT110-103 in slot 4. Input 1 is  
connected to all outputs and all outputs are on.  
The PATH command has been used to set  
Input 2 to Output 1 and turn off Outputs 2 and 3  
simultaneously. If checking the status prior to  
sending the [SW] command, the feedback will  
appear as follows for the above connection  
settings:  
Connect Input 1 to Output 1 for the MT110-103  
in slot 5. Send the command [I1O1C5] and  
Input 1 will be connected to Output 1.  
15. [IO*]  
This command connects a single input to all the  
outputs in the current matrix configuration.  
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MULTITASKER™  
18. [OSO]  
Command Format: [ImO*CnUi]  
m = Input (m = # from 1 to 8)  
Cn = Card ID (n = slot # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
This command sets the output offset value that  
is applied to all outputs. The default is zero, or  
Output 1 equals Output 1. An offset of 16 would  
make Output 1 equal to Output 17.  
Command Format: [OSOmCi]  
m = Offset (m = # from 0 to 128)  
Ci = Card ID (i = # from 1 to max slots)  
Example:  
Connect Input 1 to all outputs for the  
MT110-103 in slot 5. Send the command  
[I1O*C5] and Input 1 will be connected to all  
outputs.  
[OSO16C8] sets the output offset value to 16 for  
the card in slot 8. The outputs on card 8 will now  
be addressed by the value of their physical  
number plus the offset value. In this case,  
Output 1 would now be Output 17.  
16. [CLR]  
This command clears the card, restoring the  
default settings. In this case, Input 1 to all  
outputs, all outputs on and all input levels to  
maximum.  
19. [FBD]  
Command Format: [CLRCnUi]  
Cn = Group ID (n = # from max slots)  
Ui = Unit ID (i = # from 0-9)  
Example:  
This command turns feedback delay on or off. It  
is necessary when installing some newer cards  
in older systems. If the system does not receive  
all of the feedback from the card, the card may  
be communicating too fast. This command will  
slow down the card's communication rate.  
To clear the card in slot 4, send the [CLRC4]  
command. The card in slot 4 is now set to its  
default values.  
Command Format: [FBDmCnUi]  
m = Delay (0= no delay, 1= delay 100mS)  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = from 0 to 9)  
Example:  
17. [OSI]  
This command sets the input offset value that is  
applied to all inputs. The default is zero, or  
Input 1 equals Input 1. An offset of 16 would  
make Input 1 equal to Input 17.  
The command [HELPC4] is sent to the card in  
slot 4. Some of the HELP file is displayed on the  
screen, but most is missing. Send the command  
[FBD1C4] to slow down the rate at which the  
card sends feedback to the system.  
Command Format: [OSImCi]  
m = Offset (m = # from 0 to 128)  
Ci = Card ID (i = # from 1 to max slots)  
Example:  
[OSI16C8] sets the input offset value to 16 for  
the card in slot 8. The inputs on card 8 will now  
be their physical number plus the offset value.  
In this case, Input 1 would now be Input 17.  
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20. [RSI]  
ID COMMANDS: RSI, SIDn, SIDnCi, SID+, RSN  
The default Card ID is the same as the card slot  
number. The next several commands allow the  
user to change the Card ID to a value other than  
the slot number. Once the ID is changed,  
moving the card to another slot will not change  
the card ID. If a card in slot 4 is set to ID 1, then  
moved to slot 10, its ID will remain 1. The RSI  
command forces each installed card to take its  
slot number as its ID number, regardless of the  
slot in which it is installed.  
This command resets the card IDs in the  
system. After sending this command, each card  
ID in the system will match the slot number of  
the card. If the card is moved to another slot, its  
ID number will be the new slot number.  
Command Format: [RSI]  
Example:  
Send the command [RSI] to the system with  
Unit ID 0. The card in slot 1 will have ID 1, the  
card in slot 2 will have ID 2 and so on. If the  
card in slot 1 is then moved to slot 4, the card ID  
will then be 4.  
Some cards require more than one slot in the  
MultiTasker™ system. As an example, some  
matrix switcher cards require 4 slots. If there are  
five of these cards installed, they would be  
numbered C4, C8, C12, C16 and C20.  
Changing the Card ID allows the user to define  
the cards as C1, C2, C3, C4 and C5.  
21. [SIDn]  
This command sets all cards installed in an  
enclosure to the same ID. After sending this  
command, all cards will be addressed with the  
same ID. Use caution sending this command to  
a system with multiple card types.  
Another use for changing the Card ID is to be  
able to use multiple systems without having to  
set each unit to a different Unit ID. All systems  
may be left as Unit ID 0 for ease of  
programming. The cards in the first unit may be  
numbered 1-10 and in the second unit 11-20.  
Command Format: [SIDn]  
n
= Card ID (n = # from 1 to 99)  
Example:  
The ID commands work with all MultiTasker™  
Front Panel systems. However, front panels that  
have firmware releases prior to the following will  
not be able to address Card IDs greater than  
the number of slots in the system:  
Send the command [SID1] to the system. All the  
cards in the system now have ID 1. Any  
commands that are sent to Card ID 1 will be  
received and executed by each card.  
22. [SIDnCi]  
690-0122-019 = Version 019 or later.  
690-0123-005 = Version 005 or later.  
690-0124-019 = Version 019 or later.  
This command sets the Card ID of a single card  
to a number from 1 to 99.  
Command Format: [SIDnCi]  
Send the command [VER], and the system will  
respond with feedback that includes the  
following:  
n
= Card ID (n = # from 1 to 99)  
Ci = Slot Number (i = # from 1 to max slots)  
Example:  
690-0122-019 690-0123-005 690-0124-019  
Send the command [SID50C10] to set the ID of  
the card in slot 10 to an ID of 50.  
Check the last three digits against the numbers  
above to determine if the Card ID commands  
can address all 99 Card IDs.  
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23. [SID+]  
This command sets the Card ID of all cards to  
GROUP COMMANDS  
The next few commands are group commands.  
The use of groups allows several boards, with the  
same functions, to be controlled simultaneously  
with a single command. These commands apply to  
all cards, not only the MT110-103.  
their slot number plus the offset value.  
Command Format: [SID+n]  
n= Offset amount (n = # from 0 to 99)  
The maximum Card ID is 99, so subtract  
the highest slot number from 99 to find the  
maximum offset. For example, in an 8 slot  
enclosure, the maximum offset would be  
91. The slot number, 8, plus the offset, 91,  
equals 99.  
25. [WR]  
This command groups multiple cards in the  
enclosure allowing all the group members to be  
controlled simultaneously with the same  
command. Each MultiTasker™ unit may define  
a maximum of eight groups.  
Example:  
In MultiTasker™ systems with audio and video  
cards, boards are typically grouped as follows:  
There are two, 20 slot enclosures to be  
connected together during normal operation.  
The first unit will use the default card IDs where  
the card ID is equal to its slot numbers. The  
second unit will have the same Unit ID, but each  
card ID will be offset by 20.  
Group 1 = Video Cards  
Group 2 = Audio Cards  
Group 3 = Video and Audio Cards  
Command Format: [WRCn1Cn2…GkUi]  
Cn = Card ID (n = slot # from 1 to max slots)  
Gk = Group number (k = # from 1-8)  
Ui = Unit ID (i = # from 0-9)  
Example:  
Connect the computer to the second unit only  
and send [SID+20] to set the ID of all the cards  
in the enclosure to their slot number plus 20.  
Reconnect both units to the computer.  
The cards in the first unit will be referenced as  
card IDs 1-20 and the cards in the second unit  
will be referenced by card IDs 21-40.  
Group cards 2, 4, and 6 as group 5 of Unit ID 1  
by sending the command [WRC2C4C6G5U1].  
After executing this command, cards 2, 4 and 6  
will be grouped together as group 5 of Unit ID 1.  
The system will return the following feedback:  
24. [RSN]  
This command reads the slot number of the  
card with a specified ID number, and returns the  
value to the system to be displayed in the  
terminal window. If more than one card has the  
same ID, each slot number will be displayed.  
[G5=C2C4C6]  
Now, when a command is sent to G5, each  
board in G5 will execute the same command.  
Command Format: [RSNCi]  
Ci = Card ID (i = # from 1 to 99)  
Example:  
26. [RMC]  
This command may be used to remove one or  
more group members from a group. Reset the  
system after using this command for all changes  
to take effect.  
The card in slot 4 uses four slots. Its ID was set  
to C1 since it is the first card in the system,  
reading from left to right. Send the command  
[RSNC1] to find the slot number of C1. The  
system will respond with the following:  
[4]  
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Command Format: [RMCn1Cn2…GkUi]  
Cn = Card ID (n= # from 1 to max slots)  
Gk = Group ID (k = # from 1-8)  
Ui = Unit ID (i = # from 0-9)  
Example:  
The system will return the following feedback:  
G1-G8:EMPTY  
28. [RD]  
This command reads and then displays the  
members in each group.  
Command Format: [RDGkUi]  
Gk = Group ID (k = # from 1-8)  
Ui = Unit ID (i = # from 0-9)  
Example:  
Group 5 consists of the cards located in slots  
numbered 2, 4, and 6. Remove just cards 4 and  
6 from the group by sending the command  
[RMC4C6G1]. The system will return the  
following feedback:  
The cards in slots 2, 4 and 6 are part of  
group 5. Read the member data for group 5, by  
sending the command [RDG5]. The system will  
return feedback as follows:  
[G5=C2]  
27. [RMG]  
This command may be used to delete an entire  
group, or all groups.  
[G5=C2C4C6]  
REMOVE A GROUP  
The feedback shows G5 (group 5) and then the  
cards that make up group 5. In this case,  
group 5 includes C2, C4 and C6.  
Remove all the members from the group,  
effectively deleting the group.  
Command Format: [RMGkUi]  
Gk = Group ID (k = # from 1-8)  
Ui = Unit ID (i = # from 0-9)  
Example:  
29. [TEST]  
This command performs a series of tests on the  
internal memory of the card.  
Upon completion, the system will display  
following:  
Group 5 consists of the cards located in slots  
number 2, 4 and 6. Remove all cards from the  
group by sending the command [RMG5]. The  
system will return the following feedback:  
Command Format: [TESTCn]  
Cn = Card ID (n = # from 1 to 99)  
Example:  
[G5=0]  
Test the internal memory of the MT110-103 in  
slot 4 by sending the command [TESTC4]. The  
card will respond with the feedback similar to  
the following:  
REMOVE ALL GROUPS  
Remove all the members from every group,  
effectively deleting all groups.  
MEMORY IS GOOD  
Command Format: [RMG*Ui]  
Ui = Unit ID (i = # from 0-9)  
Example:  
Otherwise, failures would be indicated in the  
feedback from the card.  
30. [VLO] MT110-103 ONLY  
Group 5 consists of cards 2, 4 and 6. Group 2  
consists of cards 1, 2, 3, 4 and 5. Delete all the  
groups by sending the command [RMG*].  
This command sets the absolute volume level  
for a given output.  
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Command Format: [VLOmAvCnUi]  
m = Output (m = # from 1 to 8)  
Example:  
See the [SEL] command example.  
v
= Volume Level (v = # from 1 to 32)  
33. [ - ] MT110-103 ONLY  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
This command decrements a selected property  
to be adjusted from the keyboard or front panel.  
Command Format: [ - ]  
[-] = Decrement level by one-step  
Example:  
There is an MT110-103 card in slot 8. Set the  
output volume on Output 2 to 16 by sending the  
command [VLO2A16C8].  
See the [SEL] command example.  
VOLUME RAMPING FEATURE: MT110-103 ONLY  
31. [SEL] MT110-103 ONLY  
This command is the output select command. It  
sets the path to adjust the output volume level  
for the current matrix. It is used in conjunction  
with the [ + ] and [ - ] commands.  
The following 7 commands are used to control the  
volume of the MT110-103. They may be used with  
computer control, but also are designed to be used  
with the {SETVK} command using keys on the  
Front Panel. The following code sample sets front  
panel keys 8 and 10 to Ramp Up and Ramp Down  
respectively. See your Front Panel User’s Guide  
for more details.  
Command Format: [SELmCnUi]  
m = Input No. (m = # from 1 to 16)  
Cn = Engine Card Slot Number  
Ui = Unit ID (i = # from 0 to 9)  
[+] = Increment level by one  
[-] = Decrement level by one  
Example:  
When defined as a volume control key, the key will  
respond to two conditions: press and release.  
Below, subroutine 8 starts ramping up when key 8  
is pressed. Subroutine 10 starts ramping down  
when key 10 is pressed. Subroutine 108 stops  
ramping when either key is released.  
There is an MT110-103 card in slot 8. Adjust the  
volume level on Output 2. The current level is  
set to 10. After sending the following  
commands, a better level of 15 is obtained:  
Since there are multiple outputs on this card, the  
output to ramp must first be selected using the  
[SEL] command. For example, send [SEL2C4] and  
then [RDNC4] to ramp down the volume level on  
Output 2 of C4. Then, send the [SEL2C4] and  
[RUPC4] commands to ramp the level back up.  
1. [SEL2C8]  
The current output level is 10.  
2. [ - ] [ - ] [ - ]  
{WRS8=RUPC4}  
{WRK8=8,108,0,0,0}  
{WRS10=RDNC4}  
{WRK10=10,108,0,0,0} //Press= start, release= stop  
{WRS108=RSTC4}  
{SETVK8}  
{WRLK8=VOL_UP}  
{SETVK10}  
{WRLK10=VOL_DN}  
[RAMP=10C4]  
//Ramp Up  
//Press= start, release= stop  
//Ramp Down  
The level is now 7 and is too low.  
3. [ + ] [ + ] [ + ] [ + ] [ + ] [ + ] [ + ] [ + ]  
The level is now 15 and no further  
adjustments are required.  
//STOP RAMPING  
//Set key 8 as volume key  
//Define Key 8 Label  
//Set key 8 as volume key  
//Define Key 8 Label  
//Set the ramp rate.  
32. [ + ] MT110-103 ONLY  
This command increments a selected property  
to be adjusted from the keyboard or front panel.  
Command Format: [ + ]  
[+] = Increment level by one-step  
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34. [RUP] MT110-103 ONLY  
36. [RUPm] MT110-103 ONLY  
This command ramps the output volume to its  
maximum level at the rate defined using the  
[RAMP] command.  
This command ramps UP the output volume for  
the specified output on the card. The ramping  
will continue to its maximum level at the rate  
defined using the [RAMP] command. The  
ramping may be stopped at any time using the  
[RST] command.  
Command Format: [RUPCnUi]  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
Command Format: [RUPmCnUi]  
Cn = Card ID (n = # from 1 to max slots)  
m = Output No. (n = # from 1 to 8)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
Ramp the output volume on Output 1 from a  
starting level of 10 to the maximum level of 32  
for the card in slot 8. Send the commands  
[SEL1C8] then [RUPC8] and the system will  
respond with the following feedback:  
Ramp the output volume for Output 2 from a  
starting level of 10 to the maximum level of 32  
for the card in slot 8. Send the command  
[RUP2C8] and the system will respond with the  
following feedback:  
[11][12][13][14]…[32]  
35. [RDN] MT110-103 ONLY  
This command ramps the output volume down  
to a level of 00 at a rate defined using the  
[RAMP] command.  
[11][12][13][14]…[32]  
37. [RUPm=xx] MT110-103 ONLY  
Command Format: [RDNCnUi]  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
This command ramps a specified output’s  
volume to a user defined level at a rate defined  
using the [RAMP] command.  
Command Format: [RUPm=xxCnUi]  
m = Output No. (m = # from 1-8)  
xx = Stop Level (xx = # from 01-32)  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
Ramp the output volume on Output 1 from a  
starting level of 32 down to 00 for the card in  
slot 8. Send the commands [SEL1C8] then  
[RDNC8] and the system will respond with the  
following feedback:  
[31][30][29]…[00]  
Ramp the output volume on output 7 from a  
starting level of 1 to a level of 20 for the card in  
slot 8. Send the command [RUP7=20C8] and  
the system will respond with the following  
feedback:  
[02][03][04]…[20]  
38. [RDNm] MT110-103 ONLY  
This command ramps DOWN the output volume  
for the specified output on the card. The  
ramping will continue to its minimum level at the  
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rate defined using the [RAMP] command. The  
ramping may be stopped at any time using the  
[RST] command.  
40. [RST] MT110-103 ONLY  
This command stops ramping and maintains the  
last volume setting. It may be used as a  
stand-alone command, but is designed to be  
used along with a volume key assignment on  
the front panel. As a volume key, the ramping  
action begins when the key is depressed and  
then stops when the key is released. See the  
code sample at the beginning of the volume  
ramping section.  
Command Format: [RDNmCnUi]  
Cn = Card ID (n = # from 1 to max slots)  
m = Output No. (n = # from 1 to 8)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
Ramp the output volume for output number 8  
from a starting level of 32 down to 00 for the  
card in slot 8. Send the command [RDN8C8]  
and the system will respond with the following  
feedback:  
Command Format: [RSTCnUi]  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
[31][30][29]…[00]  
The card in slot 8 is ramping from 1 to 32 at a  
rate of 32 steps in 18 seconds. Send the  
command [RSTC8] and the card will stop  
ramping the output volume. The last displayed  
volume setting will remain the current volume  
level.  
39. [RDNm=xx] MT110-103 ONLY  
This command ramps a specified output’s  
volume down to a user defined level at a rate  
defined using the [RAMP] command.  
Command Format: [RDN=xxCnUi]  
m = Output No. (xx = # from 1-8)  
xx = Stop Level (xx = # from 01-32)  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
41. [RAMP] MT110-103 ONLY  
This command displays the ramping time for 32  
steps. The time between each step is equal to  
the time in seconds divided by 32.  
Command Format: [RAMPCnUi]  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
Ramp the output volume for output number 8  
from a starting level of 32 down to 16 for the  
card in slot 8. Send the command [RDN8=16C8]  
and the system will respond with the following  
feedback:  
Display the ramp rate setting for the card in  
slot 8 by sending the command [RAMPC8]. The  
system will respond with feedback similar to the  
following:  
[31][30][29]…[16]  
RAMPTIME = 6 SECONDS  
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Command Format: [MUT1CnUi]  
42. [RAMP=x] MT110-103 ONLY  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
This command sets the ramp rate for 32 steps.  
The settings range from 4 to 18 seconds, in  
two-second intervals.  
Command Format: [RAMP=xCnUi]  
Send the command [MUT1C4] to mute all the  
outputs for the card in slot 4.  
x
= Rate in Seconds  
4
6
8
= 0.13 seconds/step  
45. [MATmXy]  
= 0.19 seconds /step  
= 0.25 seconds /step  
The matrix command allows the matrix switcher  
to be setup for different matrix sizes. The  
following tables show how the inputs and  
outputs will be configured when the matrix is  
changed. The input and output layouts are as  
viewed from the front of the card.  
10 = 0.31 seconds /step  
12 = 0.38 seconds /step  
14 = 0.44 seconds /step  
16 = 0.50 seconds /step  
18 = 0.56 seconds /step  
Example:  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
In the 4x4 configuration, when Input 1 is  
connected to Output 4, the entire channel, 1a  
and 1b, will be switched to outputs 4a and 4b  
respectively.  
Example:  
There is an MT110-103 in slot 5. Send the  
command [RAMP=16C5] to set the ramp rate to  
16 seconds. After this is set, any ramping will  
occur at a rate of 32 steps in 10 seconds, or  
0.50 seconds per step. Confirm the setting by  
sending the command [RAMPC5] and receiving  
the feedback:  
Command Format: [MATmXyCnUi]  
m = number of inputs (m = 8, 4 or 2)  
y = number of outputs (y = 8, 4 or 2)  
Cn = Card ID (n = slot # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
8 x 8  
RAMP TIME = 16 SECONDS  
43. [MUT0] MT110-103 ONLY  
INPUTS  
OUTPUTS  
This command turns on the all the outputs  
without changing the input port selected and  
without changing any volume settings.  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Command Format: [MUT0CnUi]  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
Send the command [MUT0C4] to enable the  
outputs for the card in slot 4.  
44. [MUT1] MT110-103 ONLY  
This command turns off all the outputs without  
changing the input port selected and without  
changing any output volume settings.  
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3) [CnS]  
4) [?]  
Save card settings  
4 x 4  
INPUTS  
1 a  
OUTPUTS  
1 a  
Show system cards  
5) [?C]  
Show card information  
Enable auto feedback  
1 b  
1 b  
6) [STA1]  
7) [STA0]  
8) [ON]  
9) [OFF]  
10) […S]  
11) […F]  
12) […P]  
13) [SW]  
14) [IO]  
2 a  
2 a  
2 b  
2 b  
Disable auto feedback  
3 a  
3 a  
Turns on one or more outputs  
Turns off one or more outputs  
Save the command being sent  
Show command feedback  
Sets the path, preload for [SW]  
Switch preloaded output buffer  
Connect an input to output  
Connect an input to all outputs  
Reset card to default values  
Set input offset  
3 b  
3 b  
4 a  
4 a  
4 b  
4 b  
2 x 2  
INPUTS  
1 a  
OUTPUTS  
1 a  
1 b  
1 b  
1 c  
1 c  
15) [IO*]  
16) [CLR]  
17) [OSI]  
18) [OSO]  
19) [FBD]  
1 d  
1 d  
2 a  
2 a  
2 b  
2 b  
2 c  
2 c  
Set output offset  
2 d  
2 d  
Feedback delay on/off  
46. [HELP]  
ID Commands  
20) [RSI]  
This command displays information available for  
the MultiTasker™ interface commands.  
Reset Card IDs  
Set all Card IDs  
21) [SIDn]  
Command Format: [HELPCnUi]  
Cn = Card ID (n = # from 1 to max slots)  
Ui = Unit ID (i = # from 0 to 9)  
Example:  
22) [SIDnCi] Set one Card ID  
23) [SID+]  
24) [RSN]  
Set Card ID offset  
Read Card slot number  
Group Commands  
In order to display the RS-232 commands  
available for the MT110-103 card in slot 2, send  
the command [HELPC2]. The commands along  
with a brief description will be displayed in the  
terminal window.  
25) [WR]  
Groups multiple cards  
26) [RMC] Remove members from group  
27) [RMG] Delete group  
28) [RD]  
Displays group members  
7.3. SUMMARY OF COMMANDS  
Card Commands  
Volume/Matrix Commands  
29) [TEST]  
30) [VLO]  
31) [SEL]  
Test internal memory ICs  
1) [VER]  
2) [C]  
Receives software version  
Receives status of the card  
Set absolute output volume  
Select input volume to adjust  
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MULTITASKER™  
32) [ + ]  
Increment volume  
TROUBLESHOOTING GUIDE  
8
33) [ - ]  
Decrement volume  
Ramp UP to max (32)  
Ramp DOWN to mon (0)  
We have carefully tested and have found no  
problems in the supplied MT110-101/103; however,  
we would like to offer suggestions for the following:  
34) [RUP]  
35) [RDN]  
8.1 LED IS NOT LIT  
36) [RUPm] Ramp volume UP to max (32)  
37) [RUPm=] Ramp volume UP to a value  
38) [RDNm] Ramp volume DOWN to min (1)  
39) [RDNm=] Ramp volume DOWN to a value  
Cause 1: Card cage is not plugged in.  
Solution: Plug card cage in. If the LED lights,  
the problem is solved. If the LED is  
still not ON, see Cause 2.  
Cause 2: Card is not plugged in all the way.  
40) [RST]  
Stop ramping  
Solution: Push the card in all the way. If the  
41) [RAMP] Display ramp rate  
42) [RAMP=] Set ramp rate  
LED is still not ON, see Cause 3.  
Cause 3: Card cage slot has a problem.  
43) [MUT0]  
44) [MUT1]  
45) [MAT]  
46) [HELP]  
Output Volume ON  
Solution 1: Test the card in other slots of the  
card cage. If the slot was damaged,  
the card may work in other slots. If  
other slots work and the LED lights,  
the problem is the card cage slot.  
The card cage may require service.  
Call ALTINEX at (714) 990-2300. If  
the other slots do not work and the  
LED is still not lit, see Solution 2.  
Output Volume OFF  
Matrix Configuration  
Display available commands  
Solution 2: Take any other known good card  
with an LED and verify that the slot  
used is good by seeing if the other  
card’s LED lights in that slot. If it  
lights, then the original card may be  
the source of the problem. Call  
ALTINEX at (714) 990-2300.  
8.2 LED IS BLINKING RED  
Cause 1: The CPU on the card is not  
working properly.  
Solution 1: Look at the card and verify that  
there is no damage. If there is no  
damage, see Solution 2.  
Solution 2: Verify that all IC’s are seated in their  
sockets. If the LED is still blinking  
red, see Cause 2.  
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MULTITASKER™  
Solution 2: Set the volume of the destination  
amplifier to a reasonable level. If  
there is still no sound, call ALTINEX  
at (714) 990-2300.  
Cause 2: The card and its serial device are  
not communicating.  
Solution 1: Turn the system off and then on  
again. If there is still an error, see  
Cause 3.  
8.4. DISTORTED SOUND  
Cause 1: The source level is above 1Vp-p  
Cause 3: RS485 communication error  
Solution: Make sure that the source level is  
below 1V p-p. If the sound is still  
distorted, see Cause 2.  
Solution 1: Make sure that the card is pushed  
all the way into the slot. If there is  
still an error, see Solution 2.  
Solution 2: Turn the system off and then on  
again. If there is still an error, see  
Solution 3.  
Cause 2: The  
destination  
amplifier  
provides excessive amplification.  
Solution 1: Make sure that the source signal  
level is high enough so that the  
destination amplifier does not have  
to provide excessive amplification  
and thereby distort the signal. If  
there is still sound distortion, see  
Solution 2.  
Solution 3: Call ALTINEX at (714) 990-2300.  
8.3. NO SOUND  
Cause 1: The source has a problem.  
Solution: Check the source and make sure  
that it is working at an appropriate  
volume level and all source  
connections are correct. If the  
source is working and there is still  
no sound, see Cause 2.  
Solution 2: Call ALTINEX at (714) 990-2300.  
8.5. SOUND LEVEL IS LOW  
Cause 1: Volume levels are inappropriate.  
Cause 2: The proper input card may not be  
selected.  
Solution 1: Turn up the source volume. If sound  
level is still low, see Solution 2.  
Solution 2: Turn up the destination amplifier  
volume. If the sound level is still low,  
see Cause 2.  
Solution: Select the card input that is used, by  
RS-232 accessible commands in  
section 7. If no sound is present,  
see Cause 3.  
Cause 2 Poor signal transmission.  
Cause 3: Cable  
connections  
to  
the  
Solution: Check the cables for continuity and  
make sure that connections are  
wired properly to verify that there is  
good signal transmission.  
destination are incorrect.  
Solution: Make sure that cables are  
connected properly. Also, make sure  
that the continuity and wiring are  
good. If there is still no sound  
present, see Cause 4.  
NOTE: Test the system by removing  
the MT110-101/103 card  
from between the source and  
the destination amplifier. If  
the problem persists, call  
ALTINEX at (714) 990-2300.  
Cause 4: The destination amplifier has a  
problem.  
Solution 1: Make sure that the destination  
amplifier is powered. If there is still  
no sound, see Solution 2  
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MULTITASKER™  
ALTINEX POLICY  
9
9.1 LIMITED WARRANTY/RETURN POLICY  
Please  
see  
the  
Altinex  
website  
at  
www.altinex.com for details on warranty and  
return policies.  
9.2 CONTACT INFORMATION  
ALTINEX, Inc.  
592 Apollo Street  
Brea, CA 92821 USA  
TEL: 714 990-2300  
TOLL FREE: 1-800-ALTINEX  
FAX: 714-990-3303  
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