Nortel BayStack 5520-48T-PWR Install Manual page 33

Figure 2
Stack connector for a 5500 Series switch
Figure 3
Stack connector for a 5600 Series switch
Understanding stack types
This module describes the different stack types.
Due to stack parameters being associated with the base unit, the physical
stack order depends on the base unit position and whether the stack is
configured cascade up (stack up) or cascade down (stack down). This
designation depends on the stack cabling arrangement.
The Unit Select switch is used to designate a switch in the stack as a base
or non-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 which designates them as non-base units.
Copyright © 2008–2009 Nortel Networks
ERS 5000 Series Installation
NN47200-300 04.03
13 April 2009
Placement options and cables 33