Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 29)

Getting Started with Your ASCII Module
Chapter 2
2Ć22
5. Connect the IT/DH adapter cable between the ASCII module and
channel B of the industrial terminal.
Channel B
Periodically you will have to switch the cables that connect to channel B
of the industrial terminal.
You will use the industrial terminal cable (cat. no. 1775-CAT) when
using the industrial terminal in PLC-3 mode and entering or displaying
data in the PLC-3 data table.
You will use the IT/DH adapter cable (cat. no. 1770-CB) when using
the industrial terminal in alphanumeric mode as an ASCII device
connected to your ASCII module.
Be sure to observe the labels on the cable connectors and connect each
to its designated port.
Also, if the IT/DH adapter cable is too short or not available, make your
own. It should not exceed 50 feet (Figure 1.7).
Figure 1.7
Minimum Connections in the 1770ĆCB Cable
1
2
3
7
18
25
1
2
3
7
18
25
* Protective Ground
Transmitted Data
Received Data
Ground
ASCII Module
Interface Port
Industrial Terminal
Channel B
11819
Connectors:
25Ćpin DĆShell
Male Connector
Cable Kit
1770ĆXXP (each
end)
Cable:
Belden 8723 or
equivalent
* In cable but not
required for ASCII
module