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Card Connections and Installation
4-5
Configuring digital I/O input pull-up resistance
Referring to Figure 4-6 for digital I/O input pull-up resis-
tance location, perform the following steps to configure
J100:
1. If mated together, separate the relay card from the con-
nector card by removing the mounting screw and then
pulling the two cards away from each other. Remember
to only handle the cards by the edges and shields to
avoid contamination.
2. Locate J100 on the relay board. Refer to Figure 4-6.
3. Determine if you require pull-up (5V) or pull-down
(ground) input logic.
4. Install the plug-in jumper in the appropriate position as
shown in Figure 4-8.
Figure 4-8
Digital I/O input pull-up resistance selection
Multi-pin (mass termination) connector
card
Since connections to external circuitry are made at the 96-pin
male DIN bulkhead connector, there is no need to separate
the connector card from the relay card. If the connector card
is separated from the relay card, carefully mate them togeth-
er. Make sure to handle the cards by the edges and shields to
avoid contamination.
Keithley has a variety of cable and connector accessories
available to accommodate connections from the connector
card to test instrumentation and DUTs (devices under test).
In general, these accessories, which are summarized in Table
4-1, utilize a round cable assembly for connections.
Terminal identification for the DIN connector of the multi-
pin connector card is provided by Figure 4-9 and Table
4-2. This connector will mate to a 96-pin female DIN con-
nector.
Pins of the Model 7021 mass termination connector can be
identified in one of three ways:
•
Multiplex banks (A and B).
•
Connector designation, consisting of rows a-c and col-
umns 1-32.
•
Schematic and component layout designation (1-96).
Jumper
Down
Up
A. Pull-down Resistance
Selected
Jumper
Down
Up
B. Pull-up Resistance Selected
Table 4-1
Mass termination accessories
Model
Description
7011-KIT-R
96-pin female DIN connector and hous-
ing for round cable (provided with the
Model 7021 card).
7011-MTC-2
Two-meter round cable assembly termi-
nated with a 96-pin female DIN connec-
tor on each end.
7011-MTR
96-pin male DIN bulkhead connector.
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