Allied Telesis AT-9900s Series Switch - Manual (Page 10)

Installation Guide
9
AT-A62 10/100/1000BASE-T RJ-45 Ports
The AT-A62 12-port RJ-45 expansion module features:
■ two rows of 6 RJ-45 ports
■ gigabit ports that support speeds of 10/100/1000Mbps
■ LEDs showing port status
■ 32MBytes of DDR SDRAM for packet buffering
■ cable fault detection and distance-to-fault diagnostics (see the Test Facility
chapter in the Software Reference for the switch)
Front view AT-A62
The following LEDs report operations and faults on the AT-A62.
LED State Description
L/A
(Link Activity) Green A 1000Mbps link has been established.
Green flashing 1000Mbps activity is occurring.
Amber A 10/100Mbps link has been established.
Amber flashing 10/100Mbps activity is occurring.
Off A link has not been established.
D/C
(Duplex/
Collision) Green The port is operating in full duplex mode.
Amber The port is operating in half duplex mode.
Amber flashing Collisions are occurring.
AT
-A
6
2