Audio Interface Modules; Dcn Interface Module (Lbb 3423/00); Mounting An Interface Module In The Transmitter Housing - Bosch INTEGRUS Installation And Operating Manual

INTEGRUS | Installation and Operating Manual | Infra-Red Transmitters
4. Audio signal inputs – 4, 8, 16 or 32 cinch plugs to
connect external asymmetrical audio input signals.
The number of connectors depends on the trans-
mitter type.
5. Earth connection point - Only used for factory
testing purposes.
6. Radiator signal loop-through input – A HF BNC
connector to loop-through the radiator output of
another transmitter.
7. Radiator signal outputs – Four HF BNC connec-
tors, used to connect the radiators. Up to 30 radia-
tors can be loop-through connected to each output.
8. Mains input – Euro mains socket. The transmitter
has automatic mains voltage selection. A mains
cable is provided.

2.2 Audio interface modules

2.2.1

DCN Interface Module (LBB 3423/00)

A DCN Interface Module is required if the transmitter
is to be used with the DCN Conference System.
The module must be mounted in the transmitter hous-
ing (see section 2.2.2).
1
2
3
Figure 2.4 DCN Interface Module
Figure 2.4:
1. DCN output connector – A 6-pole trunk output
female DIN connector for loop-through intercon-
nection with DCN units.
2. DCN input cable – A 2 m (6 ft 6 in) trunk input
cable with 6-pole male DIN connector for loop-
through interconnection with DCN units.
3. PCB connector
When the DCN system supply voltage on the trunk
input switches off, the DCN Interface Module automat-
ically switches the transmitter to standby. When the
DCN system supply voltage switches on, the transmit-
ter is switched to operating mode.
Bosch Security Systems | 2003-02 | 3122 475 22011en
Note: When the DCN interface is used in
combination with audio signals connected
to the cinch inputs, the DCN and audio
signals on corresponding inputs are mixed.
2.2.2 Mounting an interface module in the
transmitter housing
Warning: Before opening the transmitter
housing, make sure that the mains
power and all other connections are
disconnected!
Warning: ICs and many other electronic
components are susceptible to electrostatic
discharge (ESD). Take preventive measures
when handling the interface modules. Keep
the PCBs as long as possible in their pro-
tective packing. Wear an anti-ESD bracelet.
Follow the instructions below to mount an interface
1
module in the transmitter housing. The numbers refer
2 to figure 2.5, figure 2.6 and figure 2.7.
3
1. Remove the top cover of the transmitter housing.
2. Remove the interface module slot cover (4) at the
back of the transmitter. Keep the screws (7).
3. Remove the front plate (2) of the interface module
(1). Keep the screws (5). The front plate is not used.
4. Remove the screws (6) that connect the back plate
(3) of the module to the PCB. Keep the screws.
5. Mount the slot cover (4) and the module's back
plate (3) to the module's PCB. Use the screws from
step 4.
6. Insert the module (1) (with the components faced
down) into the transmitter housing and push it firm-
ly into the PCB connector (9).
7. Fasten the slot cover (4) to the back of the transmit-
ter housing. Use the screws (7) from step 2.
8. Fasten the module's PCB to the distance studs (8).
Use the screws (5) from step 3.
9. Close the transmitter housing.
en | 16