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DB9 Female or Terminal Block RS-232 Virtual Pin Connections
The DB9 or Terminal Block RS-232 pin connections for the Master and Slave units are the same as depicted
on the diagrams below.
DB9 connector:
Pin 3, receives the transmitted data from the user's RS-232 device. Pin 2, transmits the data back to the user's
RS-232 device. Pin 5, is used for the signal ground.
Terminal block connector:
For RS-232 connections, use the IN(-) pin for RxD, OUT(-) pin for TxD and G pin for signal ground.
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