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17
Mainframe Slot Locations/Addresses
Mainframe Mode
Switch = MAIN
Mainframe Mode
Switch = AUX
Slot Location 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Secondary Address 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Note Secondary addresses are reserved for the mainframe whether modules occupy the associated slot locations
or not.
You may want to apply stick-on labels over the slot locations of the mainframe to indicate that the modules installed in the
auxiliary mainframe are at secondary addresses 8 to 15. You may also label the modules according to their slot locations.
If any modules are removed, they can then be reinstalled in the same slot.
Figure 2-4 illustrates the relationship of the switch settings and secondary addresses. Refer to Chapter 3 for connection
information.
Figure 2-4. Switch Settings