Datalogic Compact 2D Reader Matrix-2000 Manuál s instrukcemi stáhnout pdf (Strana 42)

MATRIX-2000™ REFERENCE MANUAL

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-

READER

Figure 44 - 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-

READER

Figure 45 - RS485 Full-duplex Connections using Only TX Signals

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 107 108

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Datalogic Compact 2D Reader Matrix-2000 Manuál s instrukcemi Strana 42