Datalogic Compact 2D Reader Matrix-2000 Manual de instrucciones descargar pdf (Pagina 63)

25-PIN CABLE ELECTRICAL CONNECTIONS

5.3.1 RS232 Interface

The RS232 interface can be used for Point-to-Point, Pass Through or Master/Slave

connections. When it is connected to the host computer it allows both transmission of code

data and reader configuration by VisiSet™.

The following pins of the 25-pin connector are used for RS232 interface connection:

Pin Name Function

2 TX Transmit Data

3 RX Receive Data

4 RTS Request To Send

5 CTS Clear To Send

7 GND Ground

It is always advisable to use shielded cables. The overall maximum cable length must be

less than 15 m (49.2 ft).

Matrix 200™

GND

RTS

CTS

USER INTERFACE

GND

CTS

RTS

TXD

RXD

Chassis

Figure 62 - RS232 Main Interface Connections Using Hardware Handshaking

The RTS and CTS signals control data transmission and synchronize the connected devices.

Figure 63 - RS232 Control Signals

If the RTS/CTS handshaking protocol is enabled, Matrix 200™ activates the RTS output to

indicate a message is to be transmitted. The receiving unit activates the CTS input to enable

the transmission.

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Datalogic Compact 2D Reader Matrix-2000 Manual de instrucciones Pagina 63