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3
Card Connections
& Installation
3.1
introduction
3.2
Handling precautions
WARNING
The procedures in this section are in-
tended only for qualified service per-
sonnel.
Do
not
perform
these
procedures unless qualified to do so.
Failure to recognize and observe "or-
mal safety precautions could result
in personal injury or death.
To maintain high impedance isolation, care should be
taken when handling the relay card to avoid contami-
nation from such foreign materials as body oils. Such
contamination can substantially lower leakage resis-
tances, thus degrading performance.
The information in this section is arranged as follows:
3.2
3.3
3.4
3.5
Handling precautions: Explains precautions that
must be followed to prevent contamination to the
multiplexer card assembly. Contamination could
degrade the performance of the multiplexer card.
To avoid possible contamination, always grasp the re-
lay and connector cards by the side edges or shields.
Do not touch the board surfaces or components. On
connectors, do not touch areas adjacent to the electrical
contacts. Dirt build-up over a period of time is another
possible source of contamination. To avoid this prob-
lem, operate the mainframe and multiplexer card in a
clean environment.
Conmxtions:
Covers the basics for connecting
extecd circuitry to the two available connector
cards for the multiplexer; the screw terminal con-
nector card and the multi-pin connector card.
If a card becomes contaminated, it should be thorough-
ly cleaned as explained in paragraph 5.2.
Typical connection schemes: Provides some typ-
ical connection schemes for single card, two-card
and two-mainframe system configurations.
3.3
Connections
Model 7Oll ixkallation:
Provides a procedure to
install the multiplexer
card assembly in the
Model 7001 mainframe.
This paragraph provides the basic information needed
to connect your external teSt circuitry to the multiplex-
er. It includes the installation
of the bank-to-bank
jumpers on the connector card, insta.Ilation/removal
of
backplane jumpers on the relay card, and detailed in-
3-1
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Table of Contents
Troubleshooting
