Bosch DCN Next Generation Installation And User Instructions Manual page 43

DCN NG | Installation and User Instructions | Section 2 | Interpretation Equipment
5.3.3 Connecting the headphones
The 3.5 mm jack plug of the headphones that is
connected to the headphones socket must comply to the
following requirements:
figure 5.5: 3.5 mm headphones jack plug
table 5. 1 : Headphones jack plug details
Number Signal
1 Signal left
2 Common
3 Signal right
Note
Mono headphones are allowed. However, the
output level can be lower than for similar stereo
headphones.
Note
By default, the channel selector is automatically
deactivated when the headphones are removed
and the auto stand-by function has been
enabled (see section 5.5.2).
Bosch Security Systems | 2004-03 | 9922 141 70521en
5.3.4
The channel selector has provisions for connecting extra
headphones jack sockets (for example for a 6.3 mm
socket). These provisions consist of a 3-pin header
(see figure 5.6) and three solder pads (see figure 5.7).
2 3 1
figure 5.6: Connecting extra headphones sockets (1)
figure 5.7: Connecting extra headphones sockets (2)
Connecting extra headphones
sockets
3 2 1
X18 X17 X16
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