Raisecom RCMS2201 User Manual download pdf (Page 11)

Raisecom Technology Co., Ltd

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Pin 1, 2 for output of first E1 channel, pin 5, 6 for input of first E1 channel

Pin 3, 4 for output of second E1 channel, pin 7, 8 for input of second E1 channel

 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.

5. Troubleshooting

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.

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Raisecom RCMS2201 User Manual Page 11