User manual

COMMUNICATION PORTS AND GPI/O WIRING ENG
Page 33
19.2 CONNECTING A DIAL-UP MODEM
a modem may be connected to the the Falcon 50 serial port in order to remotely control the processor
through a regulat telephone line and a pc equipped with a modem, too. IN THE EVENT OF MODEM
CONNECTION, YOU NEED TO ENABLE THE MODEM INTERFACE FROM THE CONTROL SOFTWARE
(see the Communication page).
Connect the modem to the Serial Port, on the back of the unit. Please pay attention to the Port configuration: its speed
must be set to:
- 38400 Baud for Pots dial-up modems
- 9600 Baud for GSM modems.
A ‘cross’ (NULL-MODEM) CABLE is needed for connection to the modem. The following table shows the wiring diagram
for the cable in both case the Modem has 9 pins or 25 Pins female SubD connectors.
Also remember to:
• On a 25 pin plug connect pin 6 and 8.
• On a 9 pin plug connect pin 1 and 6.
Falcon 50 side (SubD9 Male)
Modem Side (SubD 9p M) Modem Side (SubD 25p M)
Pin 2 3 2
Pin 3 2 3
Pin 4 6 and 1 6 and 8
Pin 5 5 7