Allied Telesis AT-FS705PD, Руководство по установке

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21
Chapter 3
Troubleshooting
Follow the guidelines below to test and troubleshoot the installation in the
event a problem occurs.
If the PWR-POE LED is OFF and Port 5 is connected to a PSE device, do the
following;
Note
This twisted pair cable connecting to the POE port must be a Category 5
Ethernet cable.
❑
Make sure that the PSE device is IEEE 802.3af/D4.3 or later
compliant.
❑
Make sure that the PSE device is detecting the AT-FS705PD switch.
❑
Make sure that the CAT5 cable is functional.
❑
Make sure there is no power plug inserted in the 24VDC power port
on the back panel of the switch.
If the PWR-WALL LED is OFF and the AT-FS705PD switch is connected to a
wall adapter, do the following;
❑
Make sure that the wall adapter has an output capability of 24VDC @
0.3A.
❑
Make sure that the wall adapter has the same output polarity as the
one shown on the AT-FS705PD switch, refer to Figure 1 on page 2.
If a LINK/ACT LED is OFF, do the following:
❑
Check that the end-node connected to the port is powered ON and is
operating properly.
❑
Check that the twisted pair cable is securely connected to the port on
the switch and to the port on the end-node.