Connect The E1 Interface; Connect To The Power Supply; Typical Application; Point-To-Point "Internal Clock - Line-In Clock" Structure - Raisecom RC831-60-FV35 Series User Manual

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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 120Ω 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 75Ω unbalanced interface.

For the method of making BNC cable, please refer to Appendix A.

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.

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.

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