Oki 740 manual Using the PC Interface, Pin Signal

Using the PC Interface Connecting the PC

Your OKIFAX 740 is equipped with a serial interface (1) for connection to a serial ‘COM’ port on a PC.

LaserFax is normally supplied with a suitable RS-232 data cable, other programs may not. If you need to purchase a cable, contact your dealer or usual PC accessory supplier.

The PC interface port on your OKIFAX 740 is presented as a 9-way D-type socket. Pin assignments are as follows:

➊

This facility enables a PC running a fax program, such as WinFax Pro or LaserFax, to send and receive fax messages without the need for intermediate printing.

In addition to an IBM-compatible PC, you will need a suitable PC fax application program, such as WinFax Pro or LaserFax, and an RS-232 serial data cable to connect the PC interface to a serial ‘COM’ port on the PC.

Pin	Signal	Note
1	Data Carrier Detect (DCD)	1
2	Receive Data (RD)	2
3	Transmit Data (TD)	3
4	Data Terminal Ready (DTR)	1
5	Signal Ground (SG)
6	Data Set Ready (DSR)	1

7Request To Send (RTS)

8Clear To Send (CTS)

9 Ring Indicator 4

Notes: 1 Pins 1, 4 & 6 are connected together inside the fax machine.

2Data on pin 2 in received from the telephone line and sent to the host PC.

3Data on pin 3 is sent from the host PC to the telephone line.

4No connnection.

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