4 Troubleshooting

The following table provides a problem and resolution sequence to assist in troubleshooting of minor operating problems.

Table 4-1. Troubleshooting Steps
Symptom	Corrective Steps
PD-3501GS Midspan does not power up	Verify that an approved power cord is used. Verify that the voltage at the power inlet is between 100 and 240 V_AC. Remove and re-apply power to the device, and check the indicators during the power-up sequence.
The Powered Device (PD) does not operate	Verify that the PD is designed for PoE operation according to IEEE® 802.3af standard. Verify that you are using a standard, straight-wired, four-pair cable (UTP/FTP Category 5/5e/6). Verify that the PD is connected to the PD-3501GS "Terminal" port. If an external power splitter is in use, replace it with a known-good splitter. Remove and re-apply power to the Midspan.
The end device operates, but there is no data link	Verify that you are using a standard straight-wired, four-pair cable (UTP/FTP Category 5/5e/6). Verify that the Ethernet cable length is less than 100 meters from the Ethernet source to the load/remote terminal. Ensure that the input Ethernet cable is connected to the power injector’s "Ethernet" port. If an external power splitter is in use, replace it with a splitter known to be good.