Allied Telesis XEM-STK Installation Manual - Page 10
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XEM-12T 10/100/1000BASE-T RJ-45 Ports
The XEM-12T 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 on switches running
the AlliedWare operating system (see the Test Facility chapter in the Software
Reference for the switch)
Front view XEM-12T
The following LEDs report operations and faults on the XEM-12T.
LED
State
L/A
Green
(Link Activity)
Green flashing
Amber
Amber flashing 10/100Mbps activity is occurring.
Off
D/C
Green
(Duplex/
Amber
Collision)
Amber flashing Collisions are occurring.
Description
A 1000Mbps link has been established.
1000Mbps activity is occurring.
A 10/100Mbps link has been established.
A link has not been established.
The port is operating in full duplex mode.
The port is operating in half duplex mode.
Installation Guide
9