Cooper Instruments & Systems DFI INFINITY Digital Force Indicator/Controller - Manual (Page 6)

Figure 2-1A. RS-232 Option Board
Figure 2-1B Older RS-232 Option Board
Refer to Figure 2-1B. When interfacing the meter to devices that do not have handshaking lines, i.e. RTS/CTS,
the S1-A jumper should be installed. However, when interfacing to a PC, the S1-A should be removed.
Figure 2-2. Main Board with the RS-232/RS-485 Option Board
CF 125 INFINITY SC GUIDE 2 M1519/N/0605