Datalogic QLM500 Manuel d'instructions télécharger pdf (Page 86)

MATRIX 410™ REFERENCE MANUAL

5.4.1 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 M16 19-pin connector are used for RS232 interface connection:

Name

Function

Transmit Data

Receive Data

RTS

Request To Send

CTS

Clear To Send

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

GND

RTS

CTS

USER INTERFACE

Reference Ground

Handshaking

Signals

TXD

RXD

SHIELD

Earth Ground

Chassis

Figure 75 - RS232 Main Interface Connections

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

Figure 76 - RS232 Control Signals

If the RTS/CTS handshaking protocol is enabled, Matrix 410™ 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 QLM500 Manuel d'instructions Page 86