User manual

Raisecom Technology Co., Ltd

the contrary, if there is no CRC4 checkout signal in E1 data of optical interface the CRC4

checkout function will be disable and CRC alarm indicator unavailable.

4.1.4. Fiber Interface

For RC801-30B-FV35 dual strand device, TX stands for optical signal output (transmit)

and RX stands for input (Receive).

For RC803/5-30B-FV35 single strand device, TX and RX has no actual meanings. In one

fiber the transmission and receiving can be distinguished by different wave length.

4.2. Description of the Back Panel

V35

Back Panel of the AC Device

-48V

PGND BGND

V35

Back Panel of the DC Device

4.2.1. Power Supply Switch

I stands for ON, O stands for OFF

4.2.2. Power Connector

AC Power connector: It is the standard three-phase power connector. Please make sure

that the grounding is correct. If your AC power supply has no grounding signal please