Before you begin
• Order the appropriate ERS 3500 Series cascade cables to ensure fail-safe stacking. For more
information, see Cable requirements on page 22.
Procedure
1. Ensure that all switches for the stack are rack mounted.
2. Slide the Unit Select switches on the back of the units to the appropriate position, depending
on whether they are a base unit or non-base unit:
• Base Unit (Unit 1) - Slide the Unit Select switch to the RIGHT
• Non-Base Unit (Units 2-8) - Slide the Unit Select switch to the LEFT
Note:
The Base Unit Select switch defaults to be in the Non-Base position. Only one switch in
the stack must have the Base Unit Select switch set to the Base position.
3. Connect stacking cables as required for a Cascade Up (stack up) or Cascade Down (stack
down) configuration as shown below:
Installing the ERS 3500 Series
December 2017 Installing Ethernet Routing Switch 3500 Series 38
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