Loading ...
Loading ...
Loading ...
Page 10 AXIS T81B22 DC 30W Midspan
Troubleshooting
Symptom Corrective steps
Midspan does
not power up
1. Verify that the voltage at the power inlet is either 12V
DC or 24V DC for Input voltage.
2. Remove and re-apply power to the device and check the
LED indicators during power up sequence.
A port indicator
is not lit and the
PD (powered
device) does not
operate
1. The Midspan did not detect a PD; and the port is not
enabled.
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 there is an external PoE device connected, replace it to
verify that it is functioning properly.
5. Ensure that the input Ethernet cable is connected to the
Data In port.
6. Verify that the PD is connected to the Data & Power port.
7. Try to reconnect the same PD into a different Midspan. If
it works, there is probably a faulty port or RJ-45
connection.
8. Verify that there is no shortcut over any of the twisted
pair cables or over the RJ45 connectors.
The end device
operates, but
there is no
data link
1. Verify that the port indicator on the front panel is
continuously lit.
2. If an external PoE device is in use, replace it with a good
PoE device.
3. Verify that for this link, you are using standard UTP/FTP
Category 5 straight (non-crossover) cabling, with all four
pairs.
4. Verify that the Ethernet cable length is less than 100
meters (333 feet) from the Ethernet source to the
powered device. See Ethernet interface, on page 9.
5. Try to reconnect the same PD into a different Midspan. If
it works, there is probably a faulty port or RJ-45
connection.
Loading ...
Loading ...