Serial interface

The radio is referred to as DCE (Data Communication Equipment) whereas the device connected to it, typically a PLC or a PC, is referred to as DTE (Data Terminal Equipment). The 15-pin female ‘D’-type connector of the radio contains the connections required to establish a data communication between the radio and DTE.

To transfer data, the physical interface between DCE and DTE must be compatible and properly configured. This chapter describes the basics of the physical interface options, the related settings and the operation of the serial interface.

The radio contains one serial port:

• Port 1 is configured ON by default.

• The physical interface of port 1 is always RS-232.

The handshaking signals are:

• CD (Carrier Detect)

• RTS (Ready To Send)

• CTS (Clear To Send)

• DSR (Data Set Ready)

• DTR (Data Terminal Ready)

The physical level of these signals is always RS-232.

The wiring and cable connections are illustrated in Installation.