ZyXEL Communications ES-1124 - Manual (Page 23)

Dimension ES-1124 Ethernet Switch
Troubleshooting 3-1
Chapter 3
Troubleshooting
This section describes common problems you may encounter with the switch
and possible solutions.
3.1 Introduction
Troubleshoot the switch using the LEDs to detect problems.
3.1.1 PWR LED
The PWR LED on the front panel does not light up.
Table 3-1 Troubleshooting Power LED
STEP CORRECTIVE ACTION
1 Check the connections from your switch to the power source. Make sure you are using the supplied power
cord and that you are using an appropriate power source. Refer to the Product Specifications appendix.
2 Make sure the power source is turned on and that the switch is receiving sufficient power.
3 If these steps fail to correct the problem, contact your local distributor for assistance.
3.1.2 FDX LED
The FDX LED on the front panel does not light up.
Table 3-2 Troubleshooting FDX LED
STEP CORRECTIVE ACTION
1 The port is operating in half-duplex mode and not full-duplex mode.
2 Make sure the power source is turned on and that the switch is receiving sufficient power.
3 If these steps fail to correct the problem, contact your local distributor for assistance.
3.1.3 LNK/ACT LED
The LNK/ACT LED does not light up when a device is connected.
Table 3-3 Troubleshooting LNK/ACT LED
STEP CORRECTIVE ACTION