ADN CU1
Quick guide
AUDIO
DISTRIBUTION
NETWORK
ADN
www
A detailed instruction manual for the complete ADN
conference system can be found:
• on the CD ROM enclosed with the ADN CU1.
Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany
Printed in Germany
Publ. 02/11
543340/A01
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Important safety instructions
Important safety instructions
1. Read these instructions.
2. Keep these instructions. Always include these instructions when passing the
apparatus on to third parties.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manu-
facturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug.
A polarized plug has two blades with one wider than the other. A grounding
type plug has two blades and a third grounding prong. The wide blade or the
third prong are provided for your safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manu-
facturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination
to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods
of time.
14. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been damaged in any way, such
as power supply cord or plug is damaged, liquid has been spilled or objects have
fallen into the apparatus, when the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
15. To completely disconnect this apparatus from the AC mains, disconnect the
power supply cord plug from the AC receptacle.
16. WARNING: To reduce the risk of fire or electric shock, do not expose this appa-
ratus to rain or moisture.
17. Do not expose this equipment to dripping or splashing and ensure that no
objects filled with liquids, such as vases, are placed on the equipment.
18. The mains plug of the power supply cord shall remain readily accessible.
Hazard warnings on the rear of the central unit
The label shown on the left is attached to the rear of the central unit. The symbols
on this label have the following meaning:
Presence of uninsulated dangerous voltage within the central unit’s enclosure that
may be of sufficient magnitude to constitute risk of fire or electric shock.
Never open the central unit as there is a risk of electric shock. There are no user ser-
viceable parts inside. Refer servicing to an authorized Sennheiser service partner.
Read and follow the safety and operating instructions contained in the instruction
manual.
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Important safety instructions
Risk of fire due to overloading
Do not overload wall outlets and extension cables as this may result in fire and elec-
tric shock.
Danger of hearing damage due to high volumes
These products are used for commercial purposes. Commercial use is subject to the
rules and regulations of the trade association responsible. Sennheiser, as the man-
ufacturer, is therefore obliged to expressly point out possible health risks arising
from use.
When the conference participants listen to the floor channel via headphones, they
can adjust the volume themselves. In doing so, sound pressure exceeding 85 dB(A)
can be produced. 85 dB(A) is the sound pressure corresponding to the maximum
permissible volume which is by law (in some countries) allowed to affect your
hearing for the duration of a working day. It is used as a basis according to the
specifications of industrial medicine. Higher volumes or longer durations can
damage your hearing. At higher volumes, the duration must be shortened in order
to prevent hearing damage. The following are sure signs that you have been sub-
jected to excessive noise for too long a time:
•
•
You can hear ringing or whistling sounds in your ears.
You have the impression (even for a short time only) that you can no longer
hear high notes.
Inform the conference participants about these facts and, if necessary, ask them to
set the volume to a medium level.
Intended use
Intended use of the products includes:
•
having read this instruction manual, especially the chapter “Important safety
instructions”,
•
using the products within the operating conditions and limitations described in
this instruction manual.
“Improper use” means using the products other than as described in this instruc-
tion manual, or under operating conditions which differ from those described
herein. This will invaldiate the warranty.
This instruction manual is also available on the Internet at
www
Manual
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The ADN central unit
The ADN central unit
The ADN CU1 central unit is part of the Sennheiser ADN conference system.
ESC
The central unit controls the communication of the ADN D1 delegate units and the
ADN C1 chairman units and supplies power to them. For configuring the conference
system, you can either use the central unit’s operating menu or the “Conference
Manager” software.
ADN CU1
Conference Manager software
The “Conference Manager” software can be run in two different ways:
1. As a program on the central unit’s built-in PC (a screen, keyboard, and mouse
are required)
1
2
2. As a program on a separate Windows PC with Ethernet connection
Delivery includes
1
1
1
ADN CU1 central unit
quick guide
CD ROM (including the “Conference Manager” software (Windows) and the
instruction manual for the overall conference system as PDF)
ESC
ADN CU1
ADN D1/ADN C1
ADN D1/ADN C1
Conference Manager software
SDC CBL RJ-45
SDC CBL RJ-45
Additional components required:
1 mains cable (for the central unit; country-specific)
ADN D1 delegate units
ADN C1 chairman units (optional; for granting speaking privileges)
SDC CBL RJ-45 system cables (for connecting the conference units)
Cat. No.
Description
054324
054325
057256
Mains cable, EU version, black, 1.8 m
Mains cable, US version, black, 1.8 m
Mains cable, UK version, black, 1.8 m
502758
502759
ADN D1 delegate unit
ADN C1 chairman unit (optional; for granting speaking privileges)
009842
009853
009844
009845
009846
009847
SDC CBL RJ-45-2 system cable with two shielded RJ 45 plugs, black, 2 m
SDC CBL RJ-45-3 system cable with two shielded RJ 45 plugs, black, 3 m
SDC CBL RJ-45-5 system cable with two shielded RJ 45 plugs, black, 5 m
SDC CBL RJ-45-10 system cable with two shielded RJ 45 plugs, black, 10 m
SDC CBL RJ-45-20 system cable with two shielded RJ 45 plugs, black, 20 m
SDC CBL RJ-45-50 system cable with two shielded RJ 45 plugs, black, 50 m
Additional accessories for the ADN conference system can be found at
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Product overview – ADN CU1 central unit
Product overview – ADN CU1 central unit
1
2
3
4 5
ESC
IN –– AUDIO –– OUT
PORT II PORT I
100-240V~
50/60Hz 240W
2x 52.8V
1.75A
D
6
7
8
9
@
A
B
C
E
F
A Front view
1 On/off switch
B Rear view
6 IN audio input
7 OUT audio output
2 Standard display key
3 Display panel
4 Jog dial
8 PORT II socket (RJ 45) for connection
of conference units
9 PORT II socket (RJ 45) for connection
5 ESC key
of conference units
0 VGA monitor output
A USB socket
(2x)
B Network socket (RJ 45)
C Fans
D Mains socket
E Hazard warnings
F Type plate
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Product overview – ADN CU1 central unit
Overview of the ADN CU1 display panel
After switch-on, the central unit’s display shows a progress bar for approx.
30 seconds and then the standard display:
I
G
H
Direct Access
30 Units
22
O
N
M
L
J
K
Text/icon
G Conference mode
Possible display/function
Current conference mode:
“Direct Access”, “Override”, “Request”
H Floor channel volume
Current volume setting for the conference units’
built-in loudspeakers
I Number of conference units Number of connected conference units
J Connection status
: The central unit is not connected to the
“Conference Manager” software and/or a media
control unit
: The central unit is connected to the “Con-
ference Manager” software and/or a media
control unit
K Structural change icon
Icon appears if, since the last initialization,
a malfunction/change has occurred in the
wiring of the conference units
L Cable fault icon
Icon appears if conference units are not
correctly connected
M Short-circuit icon
Icon appears if there is a short circuit in the
wiring of the conference units. The display panel
lights up red.
N Warning triangle
Icon appears if there is a malfunction/change.
The display panel lights up red.
O Lock mode icon
Lock mode of the central unit:
: lock mode is deactivated
: lock mode is activated
(see page 11)
For information on troubleshooting when error icons K to N are displayed, refer to
the detailed instruction manual.
The “Conference Manager” software
The “Conference Manager” software allows you to conveniently configure and
control the entire conference via a Windows PC or directly via the central unit.
For information on the software, refer to the detailed instruction manual.
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Structuring and controlling the conference system
Structuring and controlling the
conference system
Structuring the conference system
The ADN conference system is suitable for small to medium size conferences with
approx. 30 conference units (divided up onto the two connection sockets PORT I
and PORT II). Delegate units and chairman units can be combined in an arbitrary
order and are connected to the central unit using SDC CBL RJ-45 system cables. The
ends of the cable strings are open (no ring topology). The maximum number of
conference units that can be used depends on the voltage supply which in turn is
influenced by the cable lengths (see next chapter).
IN –– AUDIO –– OUT
PORT II PORT
I
100-240V~
50/60Hz 240W
2x 52.8V
1.75A
...
...
15
15
2
1
1
2
Port II Port I
max. 80 m
approx. 2-5 m
approx. 2-5 m
approx. 2-5 m
approx. 2-5 m
>35 V
Voltage supply = 52.8 V
>35 V
In addition, you can connect audio devices to the central unit in order to e.g. feed
audio signals to the floor channel or to output the floor channel via an external
audio device. The ADN conference system can be completely integrated into
a media control system.
Calculating the voltage drop on the system cables
For safe operation of the conference system, make sure that all conference units
are supplied with a voltage of at least 35 V! The voltage supplied depends on the
number of connected conference units and on the cable lengths. The standard
cable length between the central unit and the first conference unit is 80 m max.
and the standard cable length between the conference units is 2-5 m. If these cable
lengths are observed, safe operation of a conference system with 30 conference
units is ensured. If cable lengths are shorter, it might be that more conference units
can be used.
The “ADN Cable Calculator” program allows you to calculate the voltage drops on
the individual sections of a cable string and to plan the structure of the conference
system. The program is available from your Sennheiser partner or from the
Integration into a media control system
The ADN conference system can be completely integrated into a media control
system. You can monitor and control all functions of the conference system via the
programmable commands of your media control system. For information on the
integration into a media control system, refer to the detailed instruction manual.
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Preparing the central unit for use
Preparing the central unit for use
Setting up the central unit on a flat surface or mounting it into a rack
̈ Make sure that the air vents are not covered or blocked.
̈ Place the central unit on a flat surface as shown.
For information on how to mount the central unit into a 19” rack, refer to
the detailed instruction manual.
Connecting the central unit to the mains
CAUTION
Product damage due to unsuitable mains cables or power outlets!
An unsuitable power supply can damage the product.
̈ Only use the recommended mains cable (see page 4) for connecting the product
to the mains.
̈ Only use multi-outlet power strips or extension cables with protective ground
contacts.
̈ Only use mains cables with a 3-pin connector.
̈ First connect the mains cable to the mains socket D.
̈ Connect the mains cable to the mains.
The central unit is now ready for operation.
100-240V~
50/60Hz 240W
D
Setting up the conference system
Connecting the conference units to the central unit
You can connect up to 15 conference units to each of the central unit’s connection
sockets PORT II 8 or PORT I 9. The maximum number of conference units that can
be used in one cable string depends on the overall cable length connected to a port
(see page 7).
IN –– AUDIO –– OUT
PORT II PORT
I
100-240V~
50/60Hz 240W
252.8V
1.7
The following describes the procedure for one cable string. If necessary, repeat
these steps for a second cable string.
8
9
̈ Place the conference units at the corresponding seats.
̈ Put out a sufficient number of system cables in the required lengths.
̈ If necessary, calculate the maximum length of the cable string in order to
ensure that all conference units connected in the string are supplied with
a voltage of at least 35 V (see page 7).
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Setting up the conference system
To connect the conference units to the central unit:
CAUTION
Product damage due to an unsuitable power supply!
An unsuitable power supply can damage network devices with RJ 45 plugs that are
connected to the connection sockets PORT I and PORT II.
̈ Only connect the ADN C1 and ADN D1 conference units to the connection
sockets PORT I and PORT II.
IN –– AUDIO –– OUT
PORT II PORT
I
100-240V~
50/60Hz 240W
2x 52.8V
1.7A
IN
OUT
IN
OUT
µ
¸
µ
¸
8
9
̈ Use a system cable to connect the IN socket µ of the first conference unit to
the PORT II socket 8 or PORT I socket 9 of the central unit (see above).
̈ Use a system cable to connect the OUT socket ¸ of the first conference unit to
the IN socket µ of the second conference unit.
̈ Repeat these steps for the remaining conference units.
You can use optional cable holders for guiding the system cables. For
further information, refer to the detailed instruction manual.
Connecting external audio devices to the central unit
To output the floor channel via an external audio device:
̈ Use an XLR cable to connect the OUT audio output 7 of the central unit to an
IN –– AUDIO –– OUT
IN –– AUDIO –– OUT
PORT II PORT
I
PORT II PORT
I
external audio device.
2x 52.8V
1.75A
2x 52.8V
1.75A
To connect an external audio source and to feed its signals to the floor channel:
̈ Use an XLR cable to connect the external audio source to the IN audio input 6
7
6
of the central unit.
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Setting up the conference system
Preparing to use the “Conference Manager” software
Running the software installed
on the central unit
To use the “Conference Manager” software installed on the central unit, you require
the following devices:
Device
Requirements
Screen
Connection:
Resolution:
15-pin Sub-D VGA
800 x 600 pixels or higher
IN –– AUDIO –– OUT
P
O
R
T
I
I
P
O
R
T
I
100-240V~
50/60Hz 240W
2x 52.8V
1.75A
Recommended: 1024 x 768 or 1280 x 1024 pixels
0
Mouse
Standard USB for Windows PCs
Keyboard
Standard USB for Windows PCs
Supported language layouts: e.g. English, German, French,
Spanish, Italian, Russian, Dutch (for the complete list, refer
to the detailed instruction manual)
IN –– AUDIO –– OUT
P
O
R
T
I
I
P
O
R
T
I
100-240V~
50/60Hz 240W
2x 52.8V
1.75A
̈ Use a Sub-D VGA cable to connect a screen to the VGA monitor output
̈ Connect the keyboard and the mouse to the two USB sockets A.
0.
A
̈ Configure the screen, the keyboard and the mouse using the “Conference
Manager” software (refer to the detailed instruction manual).
Your conference system is now ready for operation.
Running the software on a
separate Windows PC
To run the “Conference Manager” software on a separate Windows PC, the PC must
meet the following system requirements:
Component
Processor
Requirement
Intel Pentium 4 or AMD Athlon XP, 2 GHz or more
Min. 512 MB
IN –– AUDIO –– OUT
P
O
R
T
I
I
P
O
R
T
I
RAM
100-240V~
50/60Hz 240W
2x 52.8V
1.75A
Hard disk
Min. 150 MB free hard disk memory
CD ROM or DVD ROM
B
Drives
Interfaces/network
TCP/IP internet protocol
Screen
Ethernet 100 MBit/s
Internet protocol version 4 (IPv4)
Minimum resolution: 800 x 600 pixels
Recommended: 1024 x 768 pixels
Operating system
Microsoft Windows XP Professional with SP 2
Microsoft Windows Vista
Microsoft Windows 7
̈ Use a network cable (Cat5) to connect the Ethernet socket B of the central unit
to the network interface of your PC.
You can also connect the PC and the central unit using a switch or similar.
̈ Install the “Conference Manager” software supplied on the CD ROM on your
connected PC and configure the network (for further information on the soft-
ware, refer to the detailed instruction manual).
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Using the central unit
Using the central unit
Switching the conference system on/off
To switch the conference system on:
1
̈ Set the on/off switch 1 to position “I”.
The central unit switches on and its display panel lights up.
To switch the conference system off:
̈ Set the on/off switch 1 to position “0”.
The central unit is switched off completely.
Deactivating the lock mode of the central unit
If the lock mode is activated (see page 15), you have to deactivate it in order to be
able to operate the central unit:
̈ Press the jog dial or any other key.
“Lock” appears on the display panel.
̈ Turn the jog dial.
The “OFF” setting is selected.
̈ Press the jog dial.
The lock mode is deactivated.
Functions of the keys
Action
Press the ESC key
Functions
• Cancels the entry and returns to the next higher
menu level or to the standard display
Press the jog dial
Turn the jog dial
• Changes from the standard display to the
operating menu
• Calls up a menu item
• Enters a submenu
• Stores the settings and returns to the operating
menu
• Increases or reduces the floor channel volume
(when the standard display is shown)
• Changes to the next/previous menu item
• Changes the setting of a menu item
Press the standard
display key
• Returns to the standard display
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Configuring the conference system
Configuring the conference system
Overview of the operating menu
“Conference”
submenu
Conference Mode
Microphone Limit
Request Limit
Talk Time Status
Talk Time Limit
“XLR Out”
submenu
Premonition Time Limit
Reaction on Talktime Exceed
Blink on Request
Re-Init
XLR Out Status
XLR Out Volume
XLR Out Equalizer
Clear Request List on Cancel
“Main Menu”
“XLR In”
submenu
Conference
Audio
System
Languages
Settings
XLR In Status
XLR In Sensitivity
XLR In Equalizer
“Audio”
submenu
XLR Out
XLR In
“Floor/Loudspeakers”
submenu
Floor/Loudspeakers
Audio Gain Reduction
XLR Mix Minus
Mic Loudspeaker Mute
Floor/Loudspeaker Volume
Floor/Loudspeaker Equalizer
“Diagnostics”
submenu
“System”
submenu
System Load
Temperature
Ports
Diagnostics
Versions
Bus Statistics
Start Self-Test
Reset Break Indication
Reset Error Indication
“Versions”
submenu
Hardware Versions Info
Software Versions Info
“Settings”
submenu
Network
Contrast
Lock
Restore Factory Defaults
“Network”
submenu
IP Address Mode
IP Address
Subnet Mask
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Configuring the conference system
Display
Function of the menu item
Option/display
“Main Menu”
“Conference”
“Audio”
Calls up the “Conference” submenu
Calls up the “Audio” submenu
Calls up the “System” submenu
Adjusts the language
–
–
–
“System”
“Languages”
“Deutsch”, “English”,
“Espanol”...
“Settings”
Calls up the “Settings” submenu
–
“Conference” menu
“Conference Mode” Adjusts the conference mode
“Direct Access” and “Override”: These two conference modes do not
“Direct Access”,
“Override” or “Request”
require the use of a chairman unit. If the maximum number of speakers
who can take the floor simultaneously has not been reached, a further
speaker can take the floor immediately.
“Request”: For this mode to function, a chairman unit is required.
The chairman receives requests to speak and grants speaking privileges
according to the FIFO principle (First In – First Out), i.e. the participant
with the longest waiting time is granted speaking privileges.
“Microphone Limit” Sets the maximum number of speakers who can take the floor simulta-
neously in “Direct Access” and “Override” mode
“1” ... “10”
“0” ... “10”
“On“/“Off”
“Request Limit”
Sets the maximum number of requests to speak in “Request” and
“Direct Access” mode
“Talk Time Status”
“Talk Time Limit”
Activates/deactivates the speaking time limit
Sets the speaking time limit
“01” ... “60”
in steps of 1 minute
“Premonition Time
Limit”
Sets the advance warning time (warns speakers that they are
approaching the end of the individual speaking time)
“00” ... “120”
in steps of 10 seconds
“Reaction on
Talktime Exceed”
Determines the behavior when the individual speaking time is exceeded
“Continue”: The individual speaking time is continued.
“Continue“/“Cancel”
“Cancel”: The individual speaking time is terminated.
“Blink on Request”
“Re-Init”
Activates/deactivates the flashing of the signal light ring when a
request to speak is made
“On“/“Off”
“Yes“/“No”
Re-initializes the conference units
If you connect chairman units to the conference system during a running
conference, you have to re-initialize them. When conference units are
re-initialized, the conference will be interrupted.
“Clear Request List
on Cancel”
Sets the function of the priority key
Setting “On”: Pressing the priority key deactivates all delegate units.
All requests to speak are deleted.
of the chairman unit
“On“/“Off”
Setting “Off”: Pressing the priority key deactivates all currently active
delegate units. All requests to speak are retained.
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Configuring the conference system
Display
Function of the menu item
Option/display
“Audio” menu
“XLR Out”
“XLR In”
Calls up the “XLR Out” submenu
–
–
–
Calls up the “XLR In” submenu
“Floor/
Calls up the “Floor/Loudspeakers” submenu
Loudspeakers”
“Audio Gain
Reduction”
The sum signal of all active conference units is output via the floor
channel (“Floor/Loudspeakers”). The “Audio Gain Reduction” menu
item allows you to adjust how the volume levels of the signals of the
individual conference units are processed.
“0.0 dB per Mic” ...
“−3.0 dB per Mic”,
“Linear Division”
“XLR Mix Minus”
Activates the filtering of the IN audio input from the OUT audio output
in order to avoid, for example, echoes during videoconferencing or
teleconferencing
“On“/“Off”
“On“/“Off”
“Mic Loudspeaker
Mute”
Deactivates the conference units’ built-in loudspeakers for contributions
coming from the conference units’ microphones
“XLR Out” menu
“XLR Out Status“
“XLR Out Volume“
Activates/deactivates the OUT audio output
Adjusts the volume of the XLR output
“On“/“Off”
“01” ... “32”
“XLR Out Equalizer“ Adjusts the tone color of the XLR output
+02 dB
–03 dB
+05 dB
“−12 dB” ... “+12 dB”
“XLR In” menu
“XLR In Status”
Activates/deactivates the IN audio input
“On“/“Off”
“XLR In Sensitivity” Adjusts the sensitivity of the XLR input
“−18.0 dBu” ...
“+18.0 dBu”
“XLR In Equalizer”
Adjusts the tone color of the XLR input
+02 dB
–03 dB
+05 dB
“−12 dB” ... “+12 dB”
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Configuring the conference system
Display
Function of the menu item
Option/display
“Floor/Loudspeakers” menu
“Floor/Loudspeakers Adjusts the floor channel volume (“Floor/Loudspeakers”)
Volume”
“00” ... “32”
“Floor/Loudspeakers Adjusts the tone color of the floor channel
Equalizer”
+02 dB
–03 dB
+05 dB
“−12 dB” ... “+12 dB”
“System” menu
“Ports”
Displays the type and number of the conference units connected to
Port I and Port II
Deleg Chair.
Port1:
Port2:
xx
xx
xx Units
xx Units
“Diagnostics”
“Versions”
Calls up the “Diagnostics” submenu
Calls up the “Versions” submenu
–
–
“Diagnostics” menu
“System Load”
Provides information on the current and voltage supply
“Temperature”
“Bus Statistics”
Provides information on the temperature status
Provides information on the status of data transmission/errors
Error Indication
Break Count
:
:
1
“Start Self-Test”
Performs a self-test on the conference system
“On“/“Off”
“Reset Break
Indication”
Resets the error counter (“Break Count”) in the “Bus Statistic”
menu item
“Yes“/“No”
“Reset Error
Indication”
Resets the display for data bus errors (“Error Indication”) in the
“Bus Statistic” menu item
“Yes“/“No”
“Versions” menu
“Hardware
Version Info”
Displays the hardware version
Displays the software version
DU/PU:
CU SB:
1
1
“Software
Version Info”
DU/PU: 0.1.1.5
CU SB: 1.0.0.0
CU Main: 1.0.0.1
“Settings” menu
“Network”
“Contrast”
“Lock”
Calls up the “Network” submenu
–
Adjusts the contrast of the display panel
Activates/deactivates the lock mode
Restores the factory default settings
“1” ... “15”
“On“/“Off”
“Yes“/“No”
“Restore Factory
Defaults”
“Network” menu
“IP Address Mode”
“IP Address”
Sets the IP address allocation mode
Sets the IP address of the central unit
Sets the subnet mask of the central unit
“Static IP“/“Dynamic IP”
“xxx . xxx . xxx . xxx”
“xxx . xxx . xxx . xxx”
“Subnet Mask”
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Configuring the conference system
Working with the operating menu
By way of example of the “Microphone Limit“ menu item, this section describes
how to use the operating menu.
Changing from the standard display to the operating menu
Direct Access
30 Units
Main Menu
Conference
Audio
20
System
Standard display
“Main Menu”
̈ Press the jog dial.
The standard display is replaced by the main menu. The last selected menu
item is highlighted.
Calling up a menu item
Main Menu
Conference
Audio
Conference
Microphone Limit
Conf. Mode
Microphones
No. Request
Conference Mode
Microphone Limit
Request Limit
05
05
System
05
Select and call up the
“Conference” submenu
Select and call up the
“Microphone Limit”
menu item
The “Microphone Limit”
menu item appears
̈ Press the jog dial to call up the “Conference” menu item.
The “Conference” submenu appears.
̈ Turn the jog dial to select the “Microphone Limit” menu item.
̈ Press the jog dial to call up the “Microphone Limit” menu item.
Changing and storing settings
Conference
Microphone Limit
Conf. Mode
Microphones
No. Request
Microphone Limit
Conf. Mode
Microphones
No. Request
Conference Mode
Microphone Limit
Request Limit
05
05
07
07
5
Select and call up the
“Microphone Limit”
menu item
Select the desired
setting
Store the setting
̈ Turn the jog dial to adjust settings in the “Microphone Limit” menu item.
̈ Press the jog dial.
Your setting is stored. You are back to the operating menu.
Canceling an entry
̈ Press the ESC key.
The operating menu or the next higher menu level appears.
Or:
̈ Press the standard display key.
The standard display appears.
To subsequently directly return to the last edited menu item:
̈ Press the jog dial repeatedly until the last edited menu item appears.
Exiting the operating menu
̈ Press the standard display key.
The standard display appears.
Or:
̈ Press the ESC key repeatedly until the standard display appears.
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Cleaning and maintaining the conference system
Setting the volume of the conference units’ built-in
loudspeakers
You can set the volume of the conference units’ built-in loudspeakers via the jog
dial on the central unit. The standard display displays the current volume
setting N.
Direct Access
30 Units
20
CAUTION
Danger of hearing damage due to loud hissing!
N
When the floor channel volume is set to a high level or when several
participants speak simultaneously, feedback noise (loud hissing) can
occur. This can cause hearing damage.
̈ Reduce the floor channel volume (see below).
̈ Make sure that the “Audio Gain Reduction” function is activated
(see page 14). This function reduces the gain per active micro-
phone by the selected level and thus prevents feedback noise.
̈ Increase the distance between the individual conference units to
at least 50 cm.
̈ Turn the jog dial
– to the right to increase the volume or
– to the left to reduce the volume.
Cleaning and maintaining the
conference system
CAUTION
Liquids can damage the product!
Liquids entering the product can cause a short-circuit in the electronics or damage
the mechanics.
Solvents or cleansing agents can damage the surfaces of the product.
̈ Keep all liquids away from the product.
̈ Do not use any solvents or cleansing agents.
̈ Before cleaning, switch the product off and disconnect the central unit from the
mains.
̈ Only use a dry and soft cloth to clean the product.
To ensure optimum cooling of the central unit:
̈ Clean the air vents on the front, back and bottom from time to time with a soft
brush or paintbrush in order to avoid dust deposits.
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Specifications – ADN CU1 central unit
Specifications – ADN CU1 central unit
Dimensions
417 x 100 x 345 mm (W x H x D)
approx. 6.5 kg
Weight
Nominal input voltage
Mains frequency
Power consumption
100 to 240 V~
50 to 60 Hz
245 W
Output voltage at
RJ45 EtherCAT
52,8 V
Nominal output current
Temperature range
max. 1.75 A
operation: +5°C to +50°C
storage: −25°C to +70°C
Relative humidity
operation: 10 to 80%
storage: 10 to 90%
XLR IN
Input resistance
Input level
R
> 10 KΩ
IN
max +18 dBu
min −18 dBu
Nominal level
+7.5 dBu
XLR OUT
Output resistance
Frequency response
Output level
R
< 100 Ω
OUT
20 Hz to 14.5 kHz; −3 dB
max. +11 dBu
Nominal level
+6 dBu
DHT (at 1 kHz)
< 0.02% A-weighted at +7.5 dBu
> 80 dB A-weighted at +11 dBu
Signal-to-noise ratio
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Manufacturer Declarations
Manufacturer Declarations
Warranty
Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this product.
For the current warranty conditions, please visit our website at
In compliance with the following requirements
•
•
RoHS Directive (2002/95/EC)
WEEE Directive (2002/96/EC)
•
China-RoHS
ADN CU1
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Circuit Modules
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求以下。
x:
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CE Declaration of Conformity
•
•
•
EMC Directive (2004/108/EC)
Low Voltage Directive (2006/95/EC)
WEEE Declaration
Please dispose of this product at the end of its operational lifetime by taking it to
your local collection point or recycling centre for such equipment. This will help to
protect the environment in which we all live.
Certified by:
Audio, Video and Similar Electronic Apparatus - Safety Requirements
CAN/CSA C22.2 No. 60065-03 Incl. AM1 and UL Std. No. 60065-2007
Trademarks
Sennheiser is a registered trademark of Sennheiser electronic GmbH & Co. KG.
Other product and company names mentioned in this instruction manual may be
the trademarks or registered trademarks of their respective holders.
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