Bosch DCNM-SERVER - Headphone Connection Notices and Warnings

DICENTIS Mechanical installation of Contribution Devices | en 67
Bosch Security Systems B.V.
Hardware Installation Manual
2021.01 | V2.2 |
Plug (pin) Solder pad Signal
1 Left solder pad Detect
2 Center solder pad Signal
3 Right solder pad GND
Tab.7.14: External headphones connection
i
Notice!
You can connect, for example, an AMP173977-3 socket to the external headphones plug of
the language selector.
!
Warning!
When using the external sockets of the DCNM-FSL, make sure that all connections are
electrically floating. In case any connections are part of an earth loop, unexpected system
behavior can occur.
!
Warning!
To prevent the user from suffering an unpleasant ESD discharge while inserting the
headphones into the connector, always use a headphone connector with a plastic front in
combination with the external headphone connection.
External headphone connection
When using an external headphone connector, please install it according to the electrical
diagram below (wiring and jack connector).
R1407
X1426
HSJ2077
1
6
2
5
4
3
detect
signal
R1408
Figure7.6: External headphone connector diagram