Audio Inputs - Bosch DCN Installation And User Instructions Manual

DCN Wireless | Installation and User Instructions | Central Devices
10.5.4 Headphones
You can connect headphones to the headphones socket
of the central control unit. The headphones must have a
3.5 mm plug (refer to figure 10.7).
figure 10.7: 3.5 mm headphones plug, connection
table 10. 1 2: 3.5 mm headphones plug, connection
Number
1
2
3
Note
You can also connect mono headphones to the
headphones socket.
You can select the signal that is available on the
headphones socket with the configuration menu (refer
to 10.6.5).
Bosch Security Systems | 2007-11 | 9922 141 70691 en
2 3 1
Signal
Left
Common
Right

10.5.5 Audio inputs

You can connect an external analog audio source to the
audio inputs of the central control unit. The central
control unit has two audio inputs. Each audio input has
(refer to figure 10.8):
• 1 XLR socket for balanced signals. The electric
circuits behind the XLR sockets contain
transformers.
• 1 double cinch socket for unbalanced signals.
Note
The audio inputs change stereo signals in mono
signals.
2 1
Audio In
3
figure 10.8: Audio input, connection
table 10. 1 3: Audio input, connection
Pin Type Signal
1 XLR Xternal
2 Live
3 Return
4 Cinch Live
5 Return
en | 39
5
4
Description
Shield/ground
Positive
Negative
Signal in
Shield/ground