Rockwell Automation 1770 DH,DHII,DH485 CABLE - Manual (Page 16)

DH and DH+ Overview
Chapter 1
1-6
To connect these devices to a DH+ interface module, you must provide your
own cable. The interface module and cable you use depends upon the type of
device you are connecting.
In this chapter we provided you with a general overview of the DH and DH+
cable systems. You are now ready to plan your network. Refer to Chapter 2.
Important: Chapter 2 provides important specifications, guidelines and
precautions that you need to know before you construct your DH or DH+
network. Be sure to read Chapter 2 before beginning any construction of
your cable system.