Nortel Networks 450 - Manual (Page 50)

Using the BayStack 450 10/100/1000 Series Switch
1-24 302401-D Rev 00
Cascade A Out Connector
Provides an attachment point for connecting this unit to another unit via the
cascade cable. A return cable from another unit’s Cascade A Out connector to this
unit’s Cascade A In connector completes the stack connection (see the example
shown in
Figure 1-11 ).
Unit Select Switch
The Unit Select switch (up = Base) determines the base unit for the stack
configuration (see
“Base Unit ” on page 1-25 ). The Unit Select switch status is
displayed on the BayStack 450 LED display panel. When the Unit Select switch is
in the Base (up) position, all other Unit Select switches in the stack configuration
must be set to Off (down).
Cascade A In Connector
Provides an attachment point for accepting a cascade cable connection from an
adjacent unit in the stack. A return cable from this unit’s Cascade A Out connector
to the adjacent unit’s Cascade A In connector completes the stack connection (see
the example shown in
Figure 1-11 ).
Figure 1-11. Connecting Cascade Cables
Cascade A Out
Unit 1
Cascade A Out Cascade A In
Unit 2
1 = Base unit
2 = 303978-A cascade cable
3 = 303978-A cascade cable (used for return)
BS0032B
Cascade A In Unit Select
Cascade A Out Cascade A In Unit Select
3 2
1
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