Bosch DCN Next Generation Installation And Operation Manual page 147

Conference System
Pin
Tx
Rx
Table 6.31 Double SC socket, connection
This figure is an example of a GOF cable with a double SC plug.
Figure 6.54 GOF with double SC plug
Make sure that all GOF cables:
–
Power supply
You can connect an external power supply to the external power supply socket of the fiber
interface. The fiber interface is supplied with a Kycon KPP-4P plug, which you can connect to
this socket (refer to Section 6.24 PRS-NSP Network Splitter).
CAUTION!
Make sure a diode is installed between the external power supply and the fiber interface. The
system voltage (nominally 40 V) can be higher than the external power supply. The higher
system voltage is forced to the external power supply. The external power supply can become
defective.
The diode should be specified for at least 50 V reverse voltage and a maximum current bigger
than what can be expected from the connected load.
Figure 6.55 Diode connection
Bosch Security Systems B.V.
Signal
Transmitter
Receiver
Are multi-mode GOF cables. (The system cannot use single mode GOF cables.)Are
applicable for light with a wavelength of 1300 nm.Have a maximum attenuation of 2 dB/
km.
Max. 48V/5A
KPP-4P KPP-4P
Pin 2 Pin 1
Installation and Operation manual
Connection | en 147
DCN-NG_IOM_V4.1 | V1.3 | 2012.07