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User Manual
20
L
Note:
Only inter-connection of optical transceiver SS13 and SS15 and inter-connection of optical
transceiver SS23 and SS25 are allowed. Same type of optical transceivers can not communicate.
If the connection is correct, and there is receiving optical signal, the LOS alarm indicator on the front
panel of the device will turn OFF after the device being electrified.
5.1.2 Connect the E1 interface
RC831-60-FV35 adopts twisted pair with RJ-45 connector to connect the 120
Ω
balanced E1interface
on the device. For the pin arrangement of the RJ-45 connector and relevant cable making method,
please refer to Appendix A.
RC831-60-FV35 adopts coaxial cable with BNC connector to connect the 75
Ω
unbalanced interface.
For the method of making BNC cable, please refer to Appendix A.
5.1.3 Connect to the power supply
For device adopting 220V AC power supply, please plug the provided 220V AC power supply cable
to a 220V standard 3-phase power supply socket. For device adopting -48V DC power supply, please
connect the device with DC power supply using -48V DC power supply (connect the BGND
terminal of the DC power supply interface of the device to the 0V ground of the power supply,
connect the -48V terminal to the -48V power supply, and connect the PGND terminal to protection
earth). For device using +24V DC power supply, the connecting is similar to that of the -48V DC
power supply.
5.2 Typical application
The network topologies provided in this section are only for user’s reference. Users should design
their own topologies according to their factual need.
5.2.1 Point-to-point “internal clock – line-in clock” structure
When RC831-60-FV35 is connecting with a router or another device with V.35 interface in a
point-to-point topology, the router must be working in the DTE mode. For the convenience of
installation and debug, users can set the local PDH multiplexer with V.35 interface to internal clock
mode, and set the remote PDH multiplexer with V.35 interface to line-in clock mode, that is, the
clock source is on the local device with V.35 interface.
