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ELECTRICAL INSTALLATION

4.2.2 RS485 Full-Duplex Interface

The RS485 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:

CBX100/500

Function

TX+

RS485 Transmit Data +

RX+

RS485 Receive Data +

TX-

RS485 Transmit Data -

RX-

RS485 Receive Data -

SGND

Signal Ground

RX485+ TX485+

SGND RX485- TX485-

USER INTERFACE

SGND TX+ RX+

TX- RX-

SCANNER

Figure 35 - RS485 Full-duplex Connections

NOTE: For applications that do not use RX485 signals, do not leave these

lines floating but connect them to SGND as shown below.

RX485+

SGND RX485-

USER INTERFACE

SGND TX+

TX-

SCANNER

Figure 36 - RS485 Full-duplex Connections using Only TX Signals

Datalogic DS5100-X200 User Manual

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