Rockwell Automation 1770 DH,DHII,DH485 CABLE - Manual (Page 117)

Constructing RS-232-C and
Longline Cables
Appendix A
A-5
Figure A.3
Connecting a module to data communication equipment (DCE) without
handshaking.
2
3
4
5
6
7
8
11
13
1
2
3
4
5
6
7
8
20
1 AA
BA
BB
CA
CB
CD
AB
CF
CC
RS-232-C
Connector of
1771-KE,
1771-KF, or
1771-KG Module
RS-232-C
Connector or DCE
(E.g., a modem)
RS-232-C
Pin Assignments:
AA Protective Ground
AB Signal Ground
BA Transmitted Data
BB Received Data
CA Request to Send
CB Clear to Send
CC Data Set Ready
CD Data Terminal Ready
CF Received Line Signal Detector
15-pin Male
Connector
25-pin Male
Connector
12533
Figure A.4
Connecting a module to data communication equipment (DCE) with
handshaking.
2
3
4
5
6
7
8
9
11
1
2
3
4
5
6
7
8
22
1 AA
BA
BB
CA
CB
CD
AB
CF
CE
RS-232-C
Connector of
1771-KE,
1771-KF, or
1771-KG Module
RS-232-C
Connector or DCE
(E.g., a modem)
RS-232-C
Pin Assignments:
AA Protective Ground
AB Signal Ground
BA Transmitted Data
BB Received Data
CA Request to Send
CB Clear to Send
CC Data Set Ready
CD Data Terminal Ready
CE Ring Indicator
CF Received Line Signal Detecto
15-pin Male
Connector
25-pin Male
Connector
12534
13
20
11 CC
1770-CP Cable (16.5 ft.)