The use of optical fiber transceivers is very simple.When the optical fiber transceivers are applied to the network,if they cannot work normally,troubleshooting is required.Troubleshooting can be carried out from the following six aspects:
1.The power indicator is not on and the optical transceiver cannot communicate.
resolvent:
Verify that the power cord is connected to the power connector on the back of the optical transceiver.
Connect other equipment to the power outlet and check whether the power outlet is energized.
Try using another power adapter of the same type that matches the fiber optic transceiver.
Check whether the voltage of the power supply is within the normal range.
2.The sys indicator on the optical transceiver is not on.
resolvent:
Normally,the sys indicator on the optical transceiver is not on,indicating that the internal components on the equipment have been damaged or cannot work properly.You can try restarting the device.If the power supply does not work,please contact your supplier for assistance.
3.The sys indicator on the optical transceiver is flashing all the time.
resolvent:
An error occurred on this machine.You can try restarting the device.If it does not work,remove and reinstall the SFP optical module,or try replacing an SFP optical module.Or check whether the SFP optical module matches the optical transceiver.
4.The network between the RJ45 port on the optical transceiver and the terminal equipment is slow.
resolvent:
There may be a duplex mode mismatch between the port of the optical transceiver and the port of the terminal equipment.This occurs when an RJ45 port that is automatically negotiated is used to connect to a device whose fixed duplex mode is full duplex.In this case,it is only necessary to adjust the duplex mode on the terminal equipment port and the optical transceiver port so that both ports use the same duplex mode.
5.The equipment connected with the optical transceiver has no communication.
resolvent:
The TX and Rx ends of the optical fiber jumper are reversed,or the RJ45 port and are not connected to the correct port on the device(please pay attention to the connection method of the through cable and the cross cable).
6.On and off phenomenon
resolvent:
It may be that the optical path attenuation is too large.At this time,the optical power at the receiving end can be measured with an optical power meter.If it is near the receiving sensitivity range,it can be basically judged as an optical path failure within the range of 1-2db.
The switch connected to the optical fiber transceiver may be faulty.At this time,the switch is replaced with a PC,that is,two optical fiber transceivers are directly connected to the PC,and both ends are connected to the Ping.If there is no on-off phenomenon,it can be basically judged as a switch fault.
It may be the fault of the optical transceiver.At this time,connect the two ends of the optical transceiver to the PC(not through the switch).After the two ends have no problem with Ping,transfer a large file(more than 100m)from one end to the other end.Observe its speed.If the speed is very slow(the file below 200m is transmitted for more than 15 minutes),it can be basically judged as the fault of the optical transceiver.
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