Measurement Computing PCM-D24/CTR3 rev.3 - Manual (Page 13)

4 INTERFACING
The PCM-D24/CTR3 has 24 digital input/output and 3 counters. Because of con-
straints imposed by the number of pins on a 33 pin connector, the access to the count-
ers is limited. A digital ground is provided on pin 33 and in the cable shield clips to
either side of the 33 pins of the connector.
4.1 PCM-D24/CTR3 CONNECTOR
Shown here is a PCM-D24/CTR3 case looking into the connector. The KEY helps to
insure that the cable is inserted in the correct orientation.
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