Card Connections and Installation
2-6
2.8
Typical connection techniques
Keithley has two connector accessories available to
accommodate connections from the DIN connector of the
card to external circuitry. These accessories are summarized
in Table 2-5.
CAUTION
Do not use the Model 7011-MTC-2 cable
with the Model 7020. Damage to the
card could result.
All input and/or output circuitry that you wish to connect to
the card must be terminated with a single 96-pin female DIN
connector. The following connection techniques provide
some guidelines and suggestions for wiring your circuitry.
Table 2-4
Miscellaneous terminal identificatio
Terminal
Connector pin no.
GND
5.3V
5.3V
GND
VEXT1
VEXT1
GND
GND
VEXT2
VEXT2
NC
NC
NC
NC
NC
NC
17c
18c
19c
20c
21c
22c
23c
24c
25c
26c
27c
28c
29c
30c
31c
32c
Table 2-5
I/O connection accessories
Model
Description
7011-KIT-R
7011-MTR
96-pin female DIN connector and housing
for round cable.
96-pin male DIN bulkhead connector.
WARNING
Before beginning any wiring proce-
dures, make sure all power is off and
any stored energy in external circuitry is
discharged.
NOTE
External circuitry should be connected
(plugged in) only with the mainframe
power off. Power should only be turned on
after the Model 7020 is installed in the
mainframe.
Round cable assemblies —
Figure 2-6 shows a typical
round cable connection technique using accessories avail-
able from Keithley.
Connections are accomplished using a custom-built cable as-
sembly that consists of a Model 7011-KIT-R connector and
a suitable round cable. Hitachi cable part number N2807-P/
D-50TAB is a 50-conductor cable. Two of these cables can
be used to supply 100 conductors. The connector has solder
cups to accommodate the individual wires of the unterminat-
ed cable. Figure 2-7 provides an exploded view of the con-
nector assembly and shows how the cable is connected. The
connector end of the resultant cable assembly mates directly
to the connector on the digital I/O card. The unterminated
end of the cable assembly can be wired directly to external
circuitry.
Also included in Table 2-5 is a male DIN bulkhead connector
(Model 7011-MTR). This connector has solder cups to allow
direct connection to external circuitry. The bulkhead
connector can then be connected to the digital I/O card via a
custom-built cable assembly using two Model 7011-KIT-R
connectors. Figure 2-8 provides the pinout for the bulkhead
connector.
Figure 2-6
Typical round cable connection techniques
Multi-Pin
Connector
Card
7011-KIT-R
Connector Kit
Cable
Wire directly to
instrumentation
and DUT
Notes: Figure 2-7 provides an exploded view showing
how the connector (with cable) is assembled.
Cable Hitachi p/n N2807-P/D-50TAB is a
50-conductor round cable. Two of these cables
can be used to supply 100 conductors.
