A
ppendix
C
©
Communication connections
Figures 7 through
provide information on the connections
used to establish and maintain communication between 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
ÄÄ
55