
CBX ELECTRICAL CONNECTIONS
4.2.2 RS485/422 Full-Duplex Interface
The RS485/422 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:
RS485/422 Transmit Data +
RS485/422 Transmit Data -
Figure 38 - RS485/422 Full-duplex Connections
NOTE: For applications that do not use RX signals, do not leave these lines
floating but connect them to SGND as shown below.
Figure 39 - RS485/422 Full-duplex Connections using Only TX Signals
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