User manual

1 Publication CNET-UM001C-EN-P - November 2005
Appendix C
Determine Your ControlNet
Media Requirements
Use This Appendix
Use this appendix to determine your network media requirements.
After reading this appendix, consult engineering drawings of your facility for
specific information concerning the best location to install the ControlNet
network.
For More Information See Page
Determine How Many Taps You Need C-4
Connect Programming Devices C-5
Determine What Type of Cable You Need C-6
Determine Trunk Cable Section Lengths C-7
Determine if You Need Repeaters C-10
Determine How Many Trunk Terminators You Need C-11
Determine What Type of Connectors You Need C-15
Use Redundant Media C-17
Application Considerations C-20
IMPORTANT
The ControlNet cable system is a ground-isolated network.
Proper selection of cable, connectors, accessories, and
installation techniques are necessary to make sure it is not
accidentally grounded. If conditions occur where other
means are needed to ensure no metal to ground
connections, items like blue tape can be used. Any
accessories should have a dielectric rating of greater than
500 V.