Specifications

Matrix-2000™ Reference Manual

3.3.2 Main Serial Interface

The signals relative to the following serial interface types are available on the 25-pin

connector:

RS232 (default setting)

RS485 FULL DUPLEX

RS485 HALF DUPLEX

The main serial interface type and its parameters (baud rate, data bits, etc.) can be

defined by the user via VisiSet™ software. The RS485 half duplex is automatically set

whenever MUX32 communication protocol is enabled. For more details refer to the

"Communication" folder in the VisiSet™ Help On Line.

Details regarding the connections and use of the main interface selection are given in the

next paragraphs.

RS232 Interface

The opto-isolated 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 TX232 Transmitted data

3 RX232 Received data

4 RTS232 Request to send

5 CTS232 Clear to send

7 GND_ISO Main opto-isolated reference ground