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Upgrading the Control Unit
Upgrading the Control Unit
1 Do not remove any of the existing carriers.
2 Refer to the Control Unit Diagram on the flip side of System Planning
Form 1.
If you are installing an expansion carrier, remove the rightmost module from
the control unit and put it aside. See Figure 9-3.
CAUTION:
Before removing any cords from the module, make sure they are
labeled first for easier replacement.
3 Install any expansion carriers.
See “Installing Expansion Carriers” in Chapter 2.
4 Install or replace any modules.
See “Installing the Modules” in Chapter 2.
5 Replace the processor module. See Figure 9-3.
a Press up on the tab at the bottom rear of the old processor module.
b While the tab is unlocked, pull the processor module towards you, and
then lift it straight up.
c Install a Release 3.0 processor module. See “Installing the Processor” in
Chapter 2.
9-6 Upgrading the System