HP 98568A Installation Instruction page 175

HP 98644A Asynchronous Serial Interface
Installation Procedure
SW1
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III
II
Figure 5-31.
HP 98644A Asynchronous Serial Interface switches
1.
Play It Safe.
a. Turn your computer off and unplug the power cord.
b. Remove the Asynchronous Serial Interface from its envelope, being
careful to handle the card only by its edges and metal end plate. The
card may be easily damaged by electrostatic discharge (static zap).
c. Place the card on the envelope.
2. Set the Select Code.
SKIP?
If you have a Series 200 Model 220, 226, 236 or 237 computer,
and you have not already installed an HP 98626A or HP
Adding Interface Cards 5-79