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Ethernet Interface
Connect with Cat. 5 or hyper Cat. 5 twisted-pair cables. Either straight-through or crossover
cable is OK.
Optical Interface
Plug the tail fiber into the fiber socket to the end.
4.3.2 Function Configuration
After connecting the cables and applying the power supply, there shall not be alarms at the
optical interface.
If users want to configure the dip-switches, first unplug the module from the chassis and then
use a flat screw-driver to set switches.
If there is any problem during installation and operation, please try the following solutions. If
the problem still cannot be solved, please contact distributors for technical support.
The following explanations and solutions to optical and E1 LOS alarms are for the local
module. If the alarms are at the remote site, please solve them at remote site.
Power (PWR) indicator (Green) is not ON
Answer: Power supply fails. Check whether the power supply is working properly
LAL indicator (Red) at optical interface is ON
Answer: Loss of signal at the optical interface. Check whether the input of optical fiber is connected
properly. Users can test the optical power using optical power meter. The optical power shall be
larger than the receiving sensitivity.
E1 sub-channel L/R LOS indicator (Red) is ON
Answer: The local E1 sub-channel receiving signal is lost. If the indicator is flashing, it means the
remote E1 sub-channel receiving signal is lost. Please check if the E1 interface is well
connected.
Chapter 5 Troubleshooting
Beijing Raisecom Science & Technology Co., Ltd
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