Figure 13: Connecting cascade cables
1. Base Unit
2. Cascade Cable (connected from Base Unit Cascade Down connector to Unit 2 Cascade Up
connector)
3. Cascade Cable (connected from Unit 2 Cascade Down connector to Base Unit Cascade Up
Connector)
Note:
In the Unit 1, set the Base unit select switch position to Base.
Initial installation unit number assignment
When you install the stack, the software automatically determines the physical order of all units in
the stack according to the position of the base unit within the stack. Thereafter, the individual units
maintain their original unit numbering, even if you change the position of one or more units in the
stack.
For example, when you initially power the stack, the base unit becomes unit 1 and the unit that the
base unit connects to (across the Cascade Down cable) becomes unit 2. The next unit is designated
as unit 3, this continues until the maximum stack configuration (up to eight units) is reached. If
another unit in the stack is designated as the base unit, the new base unit keeps its originally
designated unit number in the stack.
Stacking
August 2016 Installing Avaya ERS 4800 Series 37
Comments on this document? infodev@avaya.com
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