Nortel Ethernet Routing Switch 5500 Series Stack Configuration
51
Stack connector
Unit Select switch
The Unit Select switch is used to designate a switch in the stack as the base
unit. Sliding the switch to the right designates that switch as the base unit.
Only one switch in a stack may have the Unit Select switch in the base unit
position. All other switches in the stack must have the Unit Select switch in
the left position.
A switch’s base unit designation is also displayed on the front panel LED
display.
Cascade Down connector
The Cascade Down connector is used to connect this switch to the next unit
in the stack through a cascade cable. A connection from this connector
must be attached to the Cascade Up connector of the next switch in the
stack. A return cable from another unit’s Cascade Down connector to this
unit’s Cascade Up connector completes the stack connection.
Note: To create a stack connection, order the appropriate Nortel
Ethernet Routing Switch 5500 Series cascade cables to ensure fail-safe
stacking. These cables are not provided with the switch. For stacking
three or more units (maximum 8 units per stack), order the 3 foot
cascade max-return cable (order number AL2018009).
Cascade Up connector
The Cascade Up connector provides an attachment point for accepting a
cascade cable connection from another unit in the stack. A return cable
from this unit’s Cascade Down connector to the adjacent unit’s Cascade
Up connector completes the stack connection.
Nortel Ethernet Routing Switch 5500 Series
Installation
NN47200-300
2.00
Standard
5.0
7 July 2006
Copyright © 2005 - 2006, Nortel Networks
Nortel Networks Confidential
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