IES-5000 Series User’s Guide
52 Chapter 4 Maintenance and Troubleshooting
4.3.1 The PWR LED Does Not Turn On
4.3.2 The ALM LED Is On
The management switch card’s ALM (alarm) LED lights when the IES-5000 is overheated
and/or the fans are not working properly and/or voltage readings are outside the tolerance
levels.
The ALM (alarm) LEDs on the DSL line cards light when the card is overheated and/or
voltage readings are outside the tolerance levels.
4.3.3 No Voice on an ADSL Connection
The ADSL line cards allow the telephone wiring used for DSL connections to also
simultaneously carry normal voice conversations.
Table 9 SYS LED Troubleshooting
STEP CORRECTIVE ACTION
1 Make sure the power wires 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 Section
2.1.4 on page 24). Make sure the power supply modules are turned ON. Refer to Section 4.2
on page 50.
2 Make sure the chassis card is properly installed in the chassis.
The LED itself or the unit may be faulty; contact your vendor.
Table 10 ALM LED Troubleshooting
STEP CORRECTIVE ACTION
1 Go to the Hardware Monitor screen in the web configurator to verify the cause of the alarm.
See step 2 if the unit is overheated, step 3 if the problem is with the fans and step 4 if the
voltages are out of the allowed ranges.
2 Ensure that the IES-5000 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 Make sure you can feel and/or hear the fans working (working fans emit a low buzz and blow
air). If the fans are not working properly, refer to Section 4.1 on page 49 for instructions on
changing a fuse or changing the fan module.
4 If the voltage levels are outside the allowed range, take a screen shot of the Hardware
Monitor web configurator screen and contact your vendor.
Table 11 Voice Troubleshooting
STEP CORRECTIVE ACTION
1 Make sure the subscriber has a POTS splitter properly installed.
2 Check the telephone wire connections between the subscriber and the MDF(s).
