Ip Phone Power - Mitel MiVoice Business Troubleshooting Manual

IP PHONE POWER

SYMPTOM
Power unit is plugged in, but
does not power up.
IP device does not work, and
both Port Status LEDs are OFF
(Power unit is not detecting IP
device).
Table 16: IP Phone Power Troubleshooting
PROBABLE CAUSE
No power at outlet. OR
faulty power outlet. OR
faulty power cord.
Faulty power connections.
Wiring problem
OR
faulty IP device
OR
faulty Power Unit.
CORRECTIVE ACTION
1. Plug a known functioning device in the
power outlet.
2. Verify that the power outlet protection circuit
has not tripped.
3. Verify that the voltage of the power outlet is
within specifications.
4. Verify that the Power Unit power cord works
correctly (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.
1. Verify you are using a standard UTP
Category 5, 6 or 6e cable (with 8 wires–4
pairs).
2. Verify that you are not using a crossover
cable.
3. Verify that the connections for the port pair
both correspond to the same IP device, and
that the port connections are not reversed.
4. Verify that the cables connected to the Data
In and Data Out ports correspond to the
same IP device.
5. Connect the IP device to a different port pair
on the Power Unit. If the device works
normally, the original port is probably faulty.
6. 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.
7. If possible, connect the IP device to a
different Power Unit. If the device works
normally, the original Power Unit is probably
faulty.
Hardware
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