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Using the PC Interface
Your OKIFAX 740 is equipped with a serial interface (1)
for connection to a serial 'COM' port on a PC.
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.
62
Connecting the 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:
Pin
Signal
1
Data Carrier Detect (DCD)
2
Receive Data (RD)
3
Transmit Data (TD)
4
Data Terminal Ready (DTR)
5
Signal Ground (SG)
6
Data Set Ready (DSR)
7
Request To Send (RTS)
8
Clear To Send (CTS)
9
Ring Indicator
Notes:
1 Pins 1, 4 & 6 are connected together inside
the fax machine.
2 Data on pin 2 in received from the telephone
line and sent to the host PC.
3 Data on pin 3 is sent from the host PC to the
telephone line.
4 No connnection.
Note
1
2
3
1
1
4
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