3 Troubleshooting

The following table lists the problem and resolution sequence to assist in troubleshooting of minor operating problems. If the following steps do not solve your problem, contact your local dealer for further assistance.
Table 3-1. Troubleshooting Steps
ProblemCorrective Steps
Midspan unit does not power-up
  1. Verify that a reliable power cord is used.
  2. Verify that the voltage at power inlet is between 100 VAC–240 VAC.
  3. Remove and reapply power to the device.
PD does not operate
  1. Verify that the unit detects a PD.
  2. Verify that the PD is designed for PoE operation.
  3. Verify that 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. Ensure that the input Ethernet cable is connected to the Data In port.
  6. Verify that the PD is connected to the Data and Power Output port.
  7. Try reconnecting the same PD to see if there is probably a faulty RJ45 connection.
  8. Verify that there is no short over any of the twisted-pair cables or over the RJ45 connectors.

The end device operates, but there is no data link.
  1. If an external power splitter is in use, replace it with a viable splitter.
  2. Verify that for this link you are using a standard UTP/FTP Category 5 straight (non-crossover) cabling, with all four pairs.
  3. Verify that the Ethernet cable length is less than 100 meters from Ethernet source to the remote terminal.