Bosch DCN Next Generation Operation Manual page 155

Conference System
Figure 6.59: Circuit diagram
Requests for assistance that come from interpreter booths 1 through 16 activate parallel
outputs D00 to D15 on the data distribution board with address 254. Requests for assistance
that come from interpreter booth 17 to 31 activate parallel outputs D00 to D15 on the data
distribution board with address 255.
Power supply
You can connect an external power supply to the power supply connector. The external power
supply only gives power to the data distribution board. It does not give power to the DCN.
Supply voltage (DCN or external):
10 - 40 V(DC)
Current consumption (DCN):
< 50 mA @ 40 V(DC)
Table 6.33: Power supply
You can enable or disable the connected external power supply with the J10 jumper block.
Position
A
B
Table 6.34: Jumper setting
Bosch Security Systems B.V.
VC+
R
≤
I 125 mA
D00..D07
D08..D15
On PCB
GND
+
≤
V 50 V(DC)
_
Power
System power supply
External power supply
Operation Manual
Connection | en 155
2013.11 | V2.0 | DCN-NG_OM_V4.x