Raisecom RC831-60-FV35 Series User Manual page 24

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BER Tester
Note:
1. When setting up remote loopback testing, please make sure that there is no alarm at the optical interface in
advance.
2. When setting up any loopback at the local multi-service multiplexer, please ensure that all E1-LOOP
loopback control switches on the opposite device are OFF.
4.1.2.3 Function setting switch SW6
Bit 1
Definition Reserved
ON
OFF
4.1.2.4 E1 type selection switch SW7
Definition Bit 1 Bit 2 Bit 3 Bit 4
75Ω
120Ω
Set up the "remote loopback" on the local PDH multiplexer
Sid
E1
e
Local
Set up the "local loopback" on the local PDH multiplexer
Bit 2 Bit 3
ON ON ON OFF
OFF OFF OFF ON
Fiber
Bit 4 Bit 5
Optical interface reserved switch
ALS
Enable Please keep the factory settings!
Disable
User Manual
Sid
E1
e
Remot
e
Bit 6 Bit 7 Bit 8
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