Rockwell Automation 1770 DH,DHII,DH485 CABLE User Manual

Page 76

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DH II Overview

Chapter 4

4-5

To connect these devices to a DH II interface module, you must provide your
own cable. The interface module and cable you use depends upon the type of
device you are connecting.

For example, an asynchronous device that communicates through an RS-232-C
port would use RS-232-C cable to connect to a DH II Asynchronous Device
Interface (1779-KFL, -KFLR).

Refer to Appendix A for wiring diagrams for several devices.

You must also provide a driver program to allow your device to communicate
with DH II.

For more information on DH II interface modules, software interfaces, and the
devices you can connect to them, refer to the Data Highway II Overview
Product Data (publications 1779-2.10).

In this chapter we provided you with a general overview of the
DH II cable system and offered other information resources. You are now ready
to plan your network. Refer to Chapter 5.

Important: Chapter 5 provides important specifications, guidelines and
precautions that you need to know before you construct your DH II network.
Be sure to read Chapter 5 before beginning any construction of your
cable system.

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