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Bit Pad Two 9
An adapter cable is available to change the connector gender from female to male. Also, a
reversing cable is available to reverse the communications lines; its pin assignments
appear below:
RS-232C Reversing Cable – Pin Assignments for the 25-Pin D Connector
Signal Levels
The table below specifies the signal levels for data transmissions:
RS-232C Signal Levels
The source of the above tablet is the EIA Standard RS-232C: Interface Between Data
Terminal Equipment and Data Communication Equipment Employing Serial Binary Data
Interchange by the Engineering Department of the Electronic Industries Association
(Washington, D.C.: EIA, 1969).
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