Typical Multiplexer Connection Schemes - Keithley 7021 Instruction Manual

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Note: See Figure 4-9 for terminal identification.
Figure 4-11
Model 7011-MTR connector pinout
In Figure 4-10A, connections are accomplished using a
Model 7011-MTC-2 cable and a Model 7011-MTR bulk-
head connector. The two-meter round cable is terminated
with a 96-pin female DIN connector at each end. This cable
mates directly to the multi-pin connector card and to the
bulkhead connector. The bulkhead connector has solder cups
to allow direct connection to instrumentation and DUT. Fig-
ure 4-11 provides pinout for the bulkhead connector. The
view shown is from the solder cup end of the connector.
In Figure 4-10B, connections are accomplished using a
Model 7011-MTC-2 cable assembly that is cut in half. The
96-pin female DIN connector on one end of the cable mates
directly to the multi-pin connector card. The unterminated
end of the cable is wired directly to instrumentation and
DUT. The other half of the cable assembly could be used for
a second switching card.
In Figure 4-10C, connections are accomplished using a
custom-built cable assembly that consists of a Model
7011-KIT-R connector and a suitable round cable. Hitachi
cable p/n N2807-P/D-50TAB is a 50-conductor round cable.
Two of these cables can be used to provide 100 conductors.
The connector has solder cups to accommodate the individ-
ual wires of the unterminated cable. Figure 4-12 provides an
exploded view of the connector assembly and shows how the
cable is connected. For further Model 7011-KIT-R assembly
information, refer to the packing list provided with the kit.
The connector end of the resultant cable assembly mates
directly to the multi-pin connector card. The unterminated
end of the cable assembly is wired directly to instrumenta-
tion and DUT.
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c
b
a
Figure 4-12
Model 7011-KIT-R (with cable) assembly

Typical multiplexer connection schemes

The following information provides some typical connection
schemes for single-card, two-card, and two-mainframe sys-
tem configurations. Connection schemes for the multi-pin
connector card use some of the techniques presented in the
Multiplexer connections paragraph. Keep in mind that these
are only examples to demonstrate various ways to wire a test
system. Connection details for the connector card are provid-
ed in the Multi-pin (mass termination) connector card para-
graph.
Card Connections and Installation
View from solder
cup side of
connector
4-9