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Allied Telesis XEM-STK User Manual

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Installation Guide
                                                    17
XEM-12T 10/100/1000 BASE-T RJ-45 Ports
The XEM-12 T 12-port RJ-45 expansion module features:
■
two rows of 6 RJ-45 ports
■
gigabit ports that support speeds of 10/100/1000 Mbps
■
LEDs showing port status 
■
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-12 T
The following LEDs report operations and faults on the XEM-12 T.
LED
State
Description
L/A
 
(Link Activity)
Green
A 1000 Mbps link has been established.
Green 
flashing
1000 Mbps activity is occurring.
Amber
A 10/100 Mbps link has been established.
Amber 
flashing
10/100 Mbps 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.
XEM-12T
XEM_IG.fm  Page 17  Wednesday, May 30, 2012  9:24 AM