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GETTING STARTED
Figure 2-6. Rear Panel AID Module
Connectors
The following
connectors are shown in Figure 2-h.
0
WJ CARD l-CARD
1 is the standard input channel for
the instrument.
It includes a signal input, as well as trig-
gering connections
and a real time output.
0
4'
CARD
2-The
Model 1944 option can be installed in
the CARD 2 location.
The Model
1944 is functionally
equivalent
to the module in CARD 1.
0
42 VOLTAGE INPUT-The
VOLTAGE INPUT jack is an
isolated female BNC connector that is used to apply in-
put signals to the instrument.
0
43 REAL TIME OUTPUT-This
DB-25 connector
i',
used to transmit
A/D data in byte or word parallel form
to other equipment,
such as a computer.
Data can be
transmitted
at the programmed
sample rate, up to the
maximum
conversion
rate (1MHz) of the instrument.
A
user-supplied
interface on the computer
end is required
to make the necessary connections.
0
44 TRIGGER
IN-This
BNC connector can be used to
apply an external trigger pulse to initiate a mcas~~rcnwnt
sequence. External triggering
is available only when the
instrument
is properly
programmed
with the SOURCE
key.
0
45 TRIGGER
OUT-This
BNC connector provides a trig-
ger output
pulse when the Model 194 is itself trigRcrcd.
It can be used to trigger other instrumentation.
2-11
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