Microchip Technology PD-90 G Series, Руководство пользователя

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5. Troubleshooting
The following sections describe the troubleshooting procedures to address any problems with a unit.
5.1 Preliminary Steps
If you have a problem, verify:
• Power is applied to Midspan.
• A crossover-type Ethernet cable has not been used.
• Ethernet cable from network is connected to DATA port.
• Ethernet cable to PD is connected to
Data & Power port.
• Cable pairs are attached to their corresponding ports.
5.2 Troubleshooting Steps
The following table provides a problem and resolution sequence to assist in troubleshooting of minor operating
problems. If steps given do not solve your problem, call the local dealer for further assistance.
Table 5-1. Troubleshooting Steps
Problem Corrective Steps
Midspan does not power up 1. Make sure power cord is properly connected.
2. Verify voltage at power inlet is between 100 and 240 VAC.
3. Remove and reapply power to the device and check indicators during
power-up sequence.
A port indicator is not lit and
corresponding PD does not
operate. 1. Verify port is enabled (Midspan did not detect a PD).
2. Verify PD is designed for PoE operation.
3. Verify you are using a standard Category 5/5e/6, straight-wired cable, with
four pairs.
4. If an external power splitter is in use, replace it with a viable splitter.
5. Verify PD is connected to Data & Power Output port.
6. Try to reconnect the same PD to a different port on the same Midspan or on
another midspan. If it works, there is probably a faulty output port or RJ45
connection.
7. Verify port shutdown command was not issued through web management.
8. If PD is an old PD, set the Port to Legacy mode through the port
management.
End device operates, but there
is no data link. 1. Verify port indicator on front panel is continuously lit.
2. If an external power splitter is in use, replace it with a viable splitter.
3. Verify that for this link you are using a standard UTP/FTP Category 5
straight (non-crossover) cabling, with all four pairs, and that link is 100
meters long or less.
4. Try to reconnect the same PD to a different port on the same Midspan
or on another one. If it works, there might be a faulty port or faulty RJ45
connection.
PD-90XXG
Troubleshooting
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User Guide
DS50003153B-page 13