Appendix C
©Communication connections
Figures 7 through 12 provide information on the conne ctions
used to establish and maintain communication betwee n the
PTC-860 and other devices.
FIGURE 7

PTC-to-IBM PC/AT cable, P/N 13656-3X0

PTC-860 IBM PC/AT
TXD 2 2 RXD
RXD 3 3 TXD
CTS 5 4 DTR
GND 7 5 GND
RTS 4 6 DSR
DSR 6 7 RTS
DTR 20 8 CTS
–5 10 9 RI
OUT 11 1 CD
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