Connecting Allen-Bradley 1775-Ga Module - Allen-Bradley A-B QUALITY DL20 Series User Manual

Chapter 9
Installation and Maintenance
Connecting RS-232
Devices
9–6
Connecting 1775-GA Peripheral Communications Module
Figure 9.4 shows how to connect an Allen-Bradley Peripheral
Communications Module (Catalog No. 1775-GA).
Figure 9.4

Connecting Allen-Bradley 1775-GA Module

DL20 RS-232 Port
RS-232 IN (CLEAR)
RS-232 OUT (RED)
GROUND (BLACK)
The wire colors refer to the Allen-Bradley 2706-NC1 and -NC2 cables.
Connecting 1771-DB Basic Module
Figure 9.5 shows how to connect an Allen-Bradley BASIC Module (Catalog
No. 1771-DB.
Figure 9.5
Connecting Allen-Bradley 1771-DB Basic Module
DL20 RS-232 Port
RS-232 IN (CLEAR)
RS-232 OUT (RED)
GROUND (BLACK)
The wire colors refer to the Allen-Bradley 2706-NC1 and -NC2 cables.
RS-232C Primary Channel DCE
1
7
2
3
6
7
8
Peripheral Port (DTE)
7
6
8
20
1775-GA
SHIELD (frame ground)
RXD
TXD
SIGNAL GND
1771-DB
1
2 TXD
3 RXD
7 SG
4 RTS
5 CTS
6 DSR
DTR