Avaya 4500 Series Installation Manual page 61

cascade up (stack up) direction. The following illustration demonstrates a typical cascade up
(stack up) configuration.
Figure 21: Cascade Up (Stack Up) configuration
1. Base Unit
2. Last Unit
3. Cascade Down connector with cable connected
4. Cascade Cable
Important:
Because many network management software packages use a cascade down (stack down)
configuration, Avaya recommends that you use a cascade down configuration. See
down on page 59.
The following guidelines apply for stack configuration:
• When you apply power to the stack, the base unit initializes, typically within 60 seconds,
and the entire stack powers up as a single logical unit.
• You can attach an RS-232 communications cable to the console port of any switch in the
stack to establish a console connection.
Installation
Stack configurations
Cascade
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