Cables and Pin Assignments
C-3
7970-A2-GB20-00
August 1999
COM Port Interface Cable
The COM port connects to either a PC or to an ASCII terminal or printer for
alarms. The COM port-to-PC cable is a 14-foot, 26 AWG, 8-conductor cable with
an 8-position modular plug keyed connector and a DB9 socket connector
(Figure C-2). The COM port connector is an 8-position keyed modular jack
(
Table C-2
). The data signals on this port are referenced to a DTE interface.
98-15886
Figure C-2.
COM Port-to-PC Cable (Feature Number 7900-F1-507)
Summary of Contents for Hotwire 7974
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