Installation Guide
9
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
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.
XEM-12T
XEM_IG.fm Page 9 Monday, July 23, 2007 3:19 PM
