Bosch DCN Next Generation Installation & User's Instructions page 86

DCN Next Generation | Installation and User Instructions | Central Devices
10.8.2.3 Insertion
In the Insertion mode, audio output 4 and audio input 4
of the network controller are used to add signals from
external audio devices (refer to figure 10.10). For
example, you can connect an external audio mixer
between audio output 4 and audio input 4 of the
network controller.
C
4<
C
C I
I
DCN-SW
DCN-CCU
C
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figure 10. 1 0: Insertion
Note
In the Insertion mode, you must install a device
between audio output 4 and audio input 4 of
the network controller. When you do not install
a device, the audio signals from contribution
devices (floor) leave the system, but do not
enter the system again.
Bosch Security Systems | 2007-02 | 9922 141 70525
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Legend
C Contribution devices
I Interpretation devices
Optical network
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Chime
10.8.2.4 Mix-minus
Use the Mix-minus mode to:
• connect to a telephone coupler.
• connect two systems together.
Note
The Mix-minus connection does not cause
acoustic feedback.
3
When you connect to a telephone coupler:
• Go to menu item 7G Routing I/O 4 to set the systems
to the Mix minus mode.
• Connect audio input 4 and audio output 4 to the
telephone coupler.
4
When you connect two systems together (refer to figure
10.11):
4
• Go to menu item 7G Routing I/O 4 to set the systems
in the Mix minus mode.
2
• Connect audio input 4 of the first system to audio
output 4 of the second system.
1
• Connect audio output 4 of the first system to audio
input 4 of the second system.
3
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