These instructions explain how to connect expansion units
to a system unit with 12X cables in either a new or existing loop.
Tip: If multiple expansion units are to be added
with the system power on, work with one 12X loop at a time. For example,
if the plan is to add three expansion units to loop X and two to loop
Y, follow the complete procedure to simultaneously add the three units
to loop X. When the first procedure has been completed, then follow
the procedure to simultaneously add the two units to loop Y. It is
not necessary to complete the procedure for each expansion unit separately.
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