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98640A Analog Input Interface
To remove the A -to-D card, pull the edge of the extractors nearest the right-angle posts outward. As
the extractors swing outward their tips will pivot against the card cage and jack the card free of con-
nectors at the other end. When the card is free of the connector, grasp the corners of the card and
slowly slide it out of the card cage.
Checking a new A-to-D card
This is a good time to checkout the card's operation--before the wire termination assembly is at-
tached. See Section 5 under the heading "Preparing to Test the A-to-D Card". Once you have
verified the card is operating correctly, return to this section for an explanation of installing the wire
termination assembly.
ATTACHING THE WIRE TERMINATION ASSEMBLY
Refer to figure 2-2 for help installing the wire termination assembly. Pick up the wire termination
assembly and orient it such that the thumbscrews line up with threaded holes in the card cage and the
mating connectors for the right-angle posts on the A-to-D card are also lined up.
Push the cover plate forward until the mating connectors engage the posts and the thumbscrews just
enter their respective holes in the card cage. Tighten both screws simultaneously or they may bind.
Tighten until the cover plate is seated against the card cage's outside edges. Tighten only finger tight;
over-tightening may strip the threads of a thumbscrew or the card cage.
I
CAUTION
I
The right-angle posts must properly engage the mating
connectors on the wire termination assembly. There is a
connector for every post and no extras. The A-to-D card
and/or the wire termination assembly may be damaged
if power is applied with a post shorted to the cover plate
or in the wrong receptacle of the mating connector.
If the thulmbscrews bind do not force them. Unscrew the assembly and try again. If, after several trys
you are unable to seat the cover plate you may have defective screws. Please contact the nearest
Hewlett-f1ackard Sales and Service office. If the thumbscrews are defective, we will help you obtain a
replacement wire termination assembly. Do not attempt to substitute conventional screws for the
thumbscrews as you will void your warranty and may damage the card cage.
I
CAUTION
I
The A-to-D card may be damaged if the entire Analog
Input
Interface
is
not
properly
installed.
Hewlett-Packard will not support an improperly as-
sembled Analog Input Interface. You must operate the
A -to-D card with either our wire termination assembly
or our test assembly installed.
2-7
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