Rs422 Full Duplex Interface - Datalogic Matrix 320 Product Reference Manual

RS422 Full Duplex Interface

The RS422 full-duplex (5 wires + shield) interface is used for non-polled communication
protocols in point-to-point connections over longer distances (max 1200 m / 3940 ft)
than those acceptable for RS232 communications or in electrically noisy environments.
The CBX pinout follows:
NOTE
CBX100/500
TX+
RX+
TX-
RX-
SGND
Figure 45 - RS422 Full Duplex Connections
For applications that do not use RS422 transmission to the reader (ter-
minal block RX+ and RX- signals), do not leave these lines floating but
connect them to SGND as shown below.
Figure 46 - RS422 Full Duplex Connections Using Only TX Signals to Host
MAIN SERIAL INTERFACE
Description
RS422 Transmit Data +
RS422 Receive Data +
RS422 Transmit Data -
RS422 Receive Data -
Signal Ground
PRODUCT REFERENCE GUIDE
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