Mitel MiVoice Business Troubleshooting Manual page 75

SYMPTOM
IP device not operating, with
Power Inactive LED ON.
IP device powered correctly,
but Power Active LED is OFF.
IP device does not work, but
Green Port Status LED ON.
Table 16: IP Phone Power Troubleshooting
PROBABLE CAUSE
Discharged capacitor in IP
device
OR
wiring problem
OR
missing/Faulty local power
adapter
OR
faulty port.
Wrong connection OR
faulty IP device.
CORRECTIVE ACTION
1. Wait 5 to 10 seconds. If the Power Active
LED turns ON, there was a discharged
capacitor in the IP device.
2. Verify that you are not using any crossover
cables.
3. The IP device may require a local power
adapter to operate. If an adapter is already
in use, replace it with a known working
adapter. If this works, replace the faulty
adapter.
4. Connect the IP device directly to the Power
Unit using a short cable. If the device works
normally, the original cable (or one of its
connectors) is faulty.
5. Connect the IP device to a different port
pair. If the device works, one of the original
ports is probably faulty, or there is a bad
RJ-45 connection.
6. Unplug the IP device, and verify that the
Power Inactive LED turns OFF. If it does
not, the port is probably faulty, or the RJ-45
socket is shorted.
Re-connect the IP device to a different port
pair. If the new port pair Active Power LED
turns ON, there is a fault in the original output
port (probably a faulty LED).
Verify that the IP device is actually connected
to that port.
Replace the device by a known working IP
device (test device). If the test device powers
up, the original IP device is probably faulty.
Hardware
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