Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 49)

Chapter
Using the Communication Ports 2
2 -11
Network Port
If you set JW4 to one of the configurations shown at the left, your BASIC
module can be interfaced with a DH-485 network using a combination of:
1747-AIC isolated link coupler
1747-PIC
interface/converter
1784-KR DH-485 interface card
1770-KF3 DH-485 communication interface module
1747-KE DH-485/RS–232C communication interface module
The BASIC module and SLC processor CPU act as two separate nodes on
the DH-485 network.
Cable Requirements
Use the 1747-C10 cable, 1747-C11 cable, 1747-C13 cable, or 1747-C20
cable to interface port DH485 of the BASIC module with a 1747-AIC link
coupler. Use the DH-485 communication cable, Belden #9842, to interface
between the link couplers on the DH-485 network.The 1747-C13 cable
acts only as a communication link and does not carry 24V dc power.
The 24V dc can come from either the processor or an outside power
source. The 1747-C10, 1747-C11, or 1747-C20 cable carries 24V dc
power from the processor to the link coupler.
(The 1747-C10 cable, 1747-C11 cable and 1747-C20 cable are
interchangeable.) A cable connected to the outside power source carries
24V dc from the outside power source to the link coupler.
JW4 DH485 Network Port Configuration
(See chapter 1 for additional
information on these settings.)