Nortel Ethernet Routing Switch 4500 series stacking
55
Unit Select switch
Use the Unit Select switch to designate a switch in the stack as the base
unit. Slide the Unit Select switch to the right to designate a switch as the
base unit. You can designate only one switch in a stack as the base unit;
that is, with the switch in the base unit position. For all other switches in the
stack, the Unit Select switch must be in the left position.
The base unit designation for a switch is also displayed on the front panel
LED display (see
"Switch LED state indicators" (page 44)
).
Cascade Down connector
Use the Cascade Down connector to connect a switch to the next unit in the
stack through a cascade cable. Connect the other end of the Cascade Down
cable to the Cascade Up connector of the next switch in the stack. A return
cable from the Cascade Down connector of another unit to the Cascade Up
connector of the first unit completes the stack connection (see
"Simplified
stacking diagram" (page 56)
and
"Connecting cascade cables" (page 56)
).
ATTENTION
To create a stack connection, order the appropriate Nortel Ethernet Routing
Switch 4500 Series cascade cables to ensure fail-safe stacking. A 1.5 foot
stacking cable is included with the switch. For stacking three or more units
(maximum 8 units per stack), order the 5’, 10’, 14’ or 16.4’ cables as applicable.
Cascade Up connector
The Cascade Up connector provides an attachment point that accepts a
cascade cable connection from another unit in the stack. A return cable from
the Cascade Down connector of one switch to the Cascade Up connector
of an adjacent switch completes the stack connection. See
"Simplified
stacking diagram" (page 56)
and
"Connecting cascade cables" (page 56)
.
"Simplified stacking diagram" (page 56)
illustrates a simple, two-switch
stack connection.
Nortel Ethernet Routing Switch 4500 Series
Installation Guide
NN47205-300 (322811-B)
03.01
Standard
5.1
19 November 2007
Copyright © 2007, Nortel Networks
.
