Allied Telesis XEM-2XS User Manual

Page of 31
Expansion Modules
24                                                          
XEM-STK Stacking Ports
The XEM-STK dual-port stacking expansion module features:
two 15 Gbps full duplex stacking connections 
LEDs showing port and stack member status
seven-segment stack ID display
recessed Select button to reset stack ID to 1
Front view XEM-STK
The following LEDs report operations and faults on the XEM-STK.
LED
State
Description
Port 1
 
Port 2
Green
A link has been established.
Amber slow 
flashing
The link has a transmission fault.
Status
Green
The switch is the stack master.
Amber
The switch is a stack member.
Green 
flashing
The switch is in the process of learning the stack 
topology and selecting the stack master.
Off
The switch is not a stack member.
ID
1 to 8
Numeric ID of the stack member.
Off
The switch is not a stack member.
PORT 2
PORT 1
STACK
SELECT
STATUS
ID
XEM-STK
FAULT
NEGOTIATING
 LINK
PORT
STAT
MEMBER
 MASTER
XEM_IG.fm  Page 24  Wednesday, May 30, 2012  9:24 AM