Kantronics KPC-3 Plus - Page 38

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5 <——> 5 CTS
7 <——> 7 SG
CASE 1-B: Wiring if computer has a 25-pin connector and the cable has 9 (or more)
wires. Same as in CASE 1-A, and also:
KPC-3 Plus Computer
1 <——> 1 FG
6 <——> 6 DSR
8 <——> 8 DCD
20 <——> 20 DTR
CASE 2-A: Wiring if computer has a 9-pin connector and the cable has 5 wires:
KPC-3 Plus Computer
2 <——> 3 TXD
3 <——> 2 RXD
4 <——> 7 RTS
5 <——> 8 CTS
7 <——> 5 SG
CASE 2-B: Wiring if computer has a 9-pin connector and the cable has 8 or more wires.
Same as in CASE 2-A, and also:
KPC-3 Plus Computer
6 <——> 6 DSR
8 <——> 1 DCD
20 <——> 4 DTR
Technical note for advanced users: Two of the first five wires in each chart above
(RTS and CTS) are used for hardware flow control, so if your program uses just
software flow control and not hardware flow control, you may not need to use these two
hardware flow control wires.
If you are not using a PC compatible computer, the wiring required between your
computer and your KPC-3 Plus is the same wiring you would use for an external
telephone modem. This cable should be available from your computer dealer.
Appendix A of this manual includes details on the functions of the KPC-3 Plus‘ pins.