| Unit does not power-up. | - Verify that a reliable power cord is used.
- Verify that the voltage at the power inlet is between 100 VAC–240 VAC.
- Remove and re-apply power to the device.
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| PoE Powered-Device (PD) does not operate. | - Verify that the unit detects a PD.
- Verify that the PD is designed for PoE operation.
- Verify that a standard Category 5/5e/6 cable is in use - Straight wired cable, with four pairs.
- If an external power splitter is in use, replace it with a splitter known to be in good condition.
- Ensure that the input Ethernet cable is connected to the Up-link port.
- Verify that the PD is connected to the Data and
Power port.
- Try reconnecting the same PD to a different PoE
switch. If it works, then probably there is a faulty port or a
faulty RJ45 connection.
- Verify that there is no short-circuit over any of the twisted pair cables or over the RJ45 connectors.
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| The end device operates, but there is no data link. | - Verify that the port indicator on the unit GUI
(Web page) is continuously lit.
- If an external power splitter is in use, then replace it with a splitter known to be in good condition.
- Verify that for this link, you are using standard UTP/FTP Category 5 straight (non-crossover) cabling, with all four pairs.
- Verify that the Ethernet cable length is less than 100 meters from Ethernet source to the remote terminal.
- Try to reconnect the same PD to a different PoE switch. If it works, then there is probably a faulty port or faulty RJ45 connection.
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