Chapter 3 Troubleshooting; Power And Leds - ZyXEL Communications VOP1372G-61 User Manual

This chapter offers some suggestions to solve problems you might encounter. The potential
problems are divided into the following categories.
•

Power and LEDs

• Management and Configuration
3.1 Power and LEDs
The SYS or PWR LED does not turn on.
Table 10 SYS LED Troubleshooting
STEPS CORRECTIVE ACTION
1 Make sure the power wires on the chassis are properly connected to the power supply
and the power supply is operating normally. Make sure you are using the correct power
source (refer to the IES User's Guide).
2 Make sure the power wires are connected properly.
3 Make sure the line card is properly installed.
4 The LED itself or the unit may be faulty; contact your vendor.
The ALM LED is on.
The ALM (alarm) LED lights when the line card is overheated or the voltage readings are outside
the tolerance levels.
Table 11 ALM LED Troubleshooting
STEPS CORRECTIVE ACTION
1 Use the
is overheated, and step 3 if the voltages are out of the allowed ranges.
2 Ensure that the IES is installed in a well-ventilated area and that normal operation of the fans is
not inhibited. Keep the bottom, top and all sides clear of obstructions and away from the exhaust
of other equipment.
3 If the voltage levels are outside the allowed range, take a screen shot of the
show
VOP1372G-61 User's Guide
command to verify the cause of the alarm. See step 2 if the unit
sys monitor show
command display and contact your vendor.
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Troubleshooting
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sys monitor
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