Symbol PTC-870IM User Manual page 59

Figure 9. RS-232 (Type I)-to-PTC cable, P/N 12705-XX1
RS-232 Type I
TXD 2
RXD 3
RTS 4
CTS 5
DSR 6
GND 7
CD 8
N.C.
DTR 20
RI 22
This cable can be set for either RS-232 or RS-422
communication via jumper settings on the PTC's
motherboard. For RS-422, the first four pins would be
set as follows:
RS-422
TXD+ 2
RXD+ 3
RXD– 4
TXD– 5
PTC-870IM
2 TXD
3 RXD
4 RTS
5 CTS
6 DSR
7 DIGND
8 CD
9 DS0
10 DTR
11 RI
PTC-870IM
2 TXD+
3 RXD+
4 RXD–
5 TXD–
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