Rockwell Automation 1770 DH,DHII,DH485 CABLE - Manual (Page 108)

Chapter
9
9-1
Constructing a Data HighwayĆ485 Cable System
In this chapter we explain how to construct a Data Highway–485 cable system,
including how to:
Install the trunkline and DH–485 nodes
Important: Before you begin any procedure explained in this chapter, read
Chapter 8, ‘‘Planning a DH–485 Cable System” for important guidelines and
precautions to consider when installing your cable network.
A DH–485 cable system is constructed in a daisy chain configuration. In this
chapter we explain how to construct a DH–485 network. Non–isolated modules
require 1747–AIC link couplers to attach them to the network. The procedure
for installing the trunkline and DH–485 nodes involves the following steps:
prepare the cable wire
connect the cable to the DH–485 node
terminate the DH–485 shield
terminate the DH–485 network
Chapter Overview
Install the Trunkline and
DH-485 Nodes