Axis Communications AXIS T8120 manual Troubleshooting, Symptom Corrective Steps

Page 8 AXIS T8120 Installation Guide

Troubleshooting

Symptom	Corrective Steps
Midspan does not power up	1.	Verify that an approved power cord is used.
	2.	Verify that the voltage at the power inlet is
		between 100 and 240V AC.
	3.	Remove and re-apply power to the device and
		check the indicators during power up sequence.
A port indicator is not lit	1.	The Midspan did not detect a device and
and the Midspan does not		therefore the port is not enabled.
operate	2.	Verify that the device 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 a connected external power splitter,
		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 device is connected to the Data &
		Power port.
	7.	Try to reconnect the same device into a different
		Midspan. If it works, there is probably a faulty
		port or 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	1.	Verify that the port indicator on the front panel is
there is no data link		continuously lit.
	2.	If an external power splitter is in use, replace it
		with a known-good splitter.
	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 from the Ethernet source to the load/
		remote terminal.
	5.	Try to reconnect the same device into a different
		Midspan. If it works, there is probably a faulty
		port or RJ45 connection.