
Installation Instructions
ControlNet Fiber-optic Ring Repeater
Modules
Catalog Numbers 1786-RPFRL/B, 1786-RPFRXL/B
About the Module
The ControlNet Fiber-optic Ring Repeater module supports fiber media
redundancy by using a ring topology. The fiber-optic technology permits long
(1786-RPFRL/B module) or very long (1786-RPFRXL/B module)
transmission ranges. Both modules provide optimum protection against EMI
effects along the transmission link and at the repeaters themselves. The fiber link
provides ground isolation between nodes and is less susceptible to noisy
environments than traditional copper media.
Topic
Page
Important User Information
2
Environment and Enclosure
3
North American Hazardous Location Approval
4
Fiber-optic Safety Statements
5
About Fiber Topology
8
Mount the Fiber Modules
11
Choose Fiber-optic Cable for the Module
19
Connect the Cable Between the Repeater Modules
24
Interpret the Status Indicators
28
Specifications
33
Additional Resources
37
Spare Allen-Bradley Parts