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 2PORT 1 STACK
SELECT STATUS
ID
XEM-STK
FAULTNEGOTIATING LINK
PORT
STAT
MEMBER MASTER
XEM_IG.fm Page 24 Wednesday, May 30, 2012 9:24 AM