GE DigitalFlow GF868, Startup Manual

Page: 19 / 80

DigitalFlow™ GF868 Startup Guide (1 and 2-Channel) 9
Chapter 1. Installation
1.7.4a Wiring the RS232 Interface
The RS232 communications port provides a serial interface in order to connect the GF868 to a printer, an ANSI
terminal or a personal computer.
The RS232 serial interface is wired as Data Terminal Equipment (DTE), and the signals available at the GF868 RS232
terminal block are shown in Table 1 below. Refer to Figure 9 on page 18 to locate terminal block RS232 and complete
the following steps to wire the terminal:
1. Use the information in Table 1 to construct a suitable cable for connecting the GF868 to the external device. (If
desired, an appropriate cable may be purchased from the factory.)
2. Wire the flying leads end of the cable to terminal block RS232 and connect the other end of the cable to the printer,
ANSI terminal or personal computer.
After the wiring has been completed, consult the User’s Manual for the external device to configure it for use with the
GF868.
Table 1: RS232 Connection to DCE or DTE Device
RS232
Pin # Signal Description
DCE DB25
Pin #
DTE DB25
Pin #
DTE DB9
Pin #
1 RTN (Return) 7 7 5
2 TX (Transmit) 2 3 3
3 RX (Receive) 3 2 2
4 DTR (Data Terminal Ready) 20 20 4
5 CTS (Clear to Send) 5 4 8