Is The Link Led Lit - Allied Telesis AT-MS201 Installation Manual

Is the LINK LED lit?

The LINK LEDs light when a proper connection between the corresponding
10Base-T/100Base-TX or 100Base-FX port and the equipment connected to it
is established. If this LED is not lit, check for the problems listed as follows
and make corrections as necessary.
1. Problem 1:
The cable has been cut, damaged, or is the wrong type of cable.
Solution 1:
— Try making the connection with a different cable. Be sure you are
using an undamaged cable of the correct type.
2. Problem 2:
Connected equipment is not turned on or is not operating
properly.
Solution 2:
— Check the connected equipment (computer, another switch, etc.)
and turn on the power.
— Make sure that the SPEED and DUPLEX MODE for each port of
the switch match the settings of the attached computer or
additional switch.
3. Problem 3:
The MDI/MDI-X slide switch for TX is on the wrong setting.
Solution 3:
— Make sure you use only a straight-through cable, reposition the
MDI/MDI-X switch, and check that the LINK LED is lit.
4. Problem 4:
There is signal loss between the switch and one of the attached network
nodes.
Solution 4:
— Make sure the distance between the switch and the connected
network device does not exceed 100 meters. (UTP is half/full
duplex; MMF is half duplex.)
— Make sure you are using Category 5 cable when operating at 100
Mbps.
AT-MS201 and AT-MS202 Installation Guide
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