Serial Parameters.

The serial parameters for communications between the interface and PC are as follows:

                Baud Rate:          4,800bps

                Parity:                   None

                Data Bits:             8

                Stop Bits:             1


Cable connections

        Signal            DB9                        RJ11 Connector

        SIN                 Pin 2                      Pin 1

        SOUT             Pin 3                      Pin 3

        GND              Pin 5                      Pin 4

        RI                    Pin 9                      Pin 2

Legend :              

SIN     Serial input to PC (output from the interface)

SOUT    Serial output from PC (input to the interface)

GND     Signal ground


RI      Ring signal (input to PC)