Rockwell Automation 1770 DH,DHII,DH485 CABLE - Manual (Page 116)

Constructing RS-232-C and
Longline Cables
Appendix A
A-4
Figure A.1
Connecting a module to an advisor system or other data terminal equipment
(DTE) without handshaking.
2
3
4
5
6
7
8
11
13
1
3
2
4
5
6
7
8
20
1 AA
BB
BA
CA
CB
CD
AB
CF
CC
RS-232-C
Connector of
1771-KE,
1771-KF, or
1771-KG Module
RS-232-C
Connector of
Advisor System
or Other DTE
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
6171-DHC1 Cable (10 ft.)
15-pin Male
Connector
25-pin Male
Connector
NOTE: Depending on your DTE, you might have to jumper pins 4-5 and 6-8-20
at the 25-pin connector.
12531
Important: Depending on your DTE, you might have to jumper pins 4-5 and
6-8-20 at the 25-pin connector.
Figure A.2
Connecting a module to data terminal equipment (DTE) with handshaking.
2
3
4
5
6
7
8
11
13
1
3
2
4
5
20
7
11
6
1 AA
BB
BA
CA
CB
CC
AB
CD
CF
RS-232-C
Connector of
1771-KE,
1771-KF, or
1771-KG Module
RS-232-C
Connector of DTE
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
1770-CG Cable (16.5 ft.)
15-pin Male
Connector
25-pin Male
Connector
12532
8