Ip Phone Power - Mitel MiVoice Business Troubleshooting Manual

C 3
HAPTER

IP Phone Power

IP Phone Power Troubleshooting (Sheet 1 of 3)
Table 3.7:
Probable
Symptom Cause
Power unit is No power at
plugged in, but outlet. OR
does not power faulty power
up. outlet. OR
faulty power
cord.
Faulty power
connections.
IP device does Wiring problem
not work, and OR
both Port faulty IP device
Status LEDs OR
are OFF faulty Power
(Power unit is Unit.
not detecting
IP device).
Corrective Action
Plug a known functioning device in the power outlet.
1.
Verify that the power outlet protection circuit has not
2.
tripped.
Verify that the voltage of the power outlet is within
3.
specifications.
Verify that the Power Unit power cord works correctly
4.
(including good and solid ground connection).
Verify the following:
Ensure power is applied to the power unit.
•
Ensure you are not using crossover Ethernet cables.
•
Ensure that the input Ethernet cable is connected to
•
the Data In port of the power unit.
Ensure that the output Ethernet cable is connected to
•
the Data and Power Out port of the power unit.
Ensure that the input and output cables of a port pair
•
are used for the same IP Phone.
Verify you are using a standard UTP Category 5, 6
1.
or 6e cable (with 8 wires–4 pairs).
Verify that you are not using a crossover cable.
2.
Verify that the connections for the port pair both
3.
correspond to the same IP device, and that the port
connections are not reversed.
Verify that the cables connected to the Data In and
4.
Data Out ports correspond to the same IP device.
Connect the IP device to a different port pair on the
5.
Power Unit. If the device works normally, the original
port is probably faulty.
Connect the IP device directly to the Power Unit
6.
using a short cable. If the device works normally, the
original cable (or one of its connectors) is faulty.
If possible, connect the IP device to a different Power
7.
Unit. If the device works normally, the original Power
Unit is probably faulty.
P
HONES
H
ARDWARE
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