Bay Technical Associates BayStack 400-ST1 - Manual (Page 22)

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5. Set the Unit Select switch for the base unit to the
Base (up = Base) position (
Figure 9 ).
6. Set the Unit Select switch for all other units in the
stack to the Off (down = Off) position
Only one unit in the stack can be the base unit.
Figure 9. Setting the Unit Select Switch
Cascade A Out Cascade A In
Unit Select
Base
BS0038A
Off