VS-2400S 24 Ports VDSL2 Managed IP DSLAM with POTS splitter USER
’S MANUAL Ver.A3
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Appendix A:
Troubleshooting
Diagnosing IP DSLAM Indicators
The Switch can be easily monitored through its comprehensive panel indicators. These indicators assist the network manager in
identifying problems the Switch may encounter. This section describes common problems you may encounter and possible
solutions
1. Symptom:
POWER indicator does not light up (green) after power on.
Cause:
Defective power outlet, power cord, internal power supply
Solution:
Cheek the power outlet by plugging in another that is functioning properly.
Check the power cord with another device. If these measures fail to resolve the problem, have the unit power
supply replaced by an qualified distributor.
2. Symptom:
Link indicator does not light up (green) after making a connection.
Cause:
Network interface (e.q., a network adapter card on the attached device), network cable, or switch port is
defective.
Solution:
2.1 Verify if both of the switch and attached device are powered on.
2.2 Be sure the cable is plugged into both the switch and corresponding device.
2.3 Verify that the proper cable type is used and its length does not exceed specified limits.
2.4 Check the adapter on the attached device and cable connections for possible defects.
2.5 Replace the defective adapter or cable if necessary.
