Hardware reference guide

Networking
35013379 11/2011 257
Backplane Integration
Instead of placing each fiber optic repeater modules with its own power supply
module(s) in a standalone backplane, you can take the advantage of the quantum
form factor.
The following figure shows two segments of RIO coaxial cable connected point-to-
point by two 140NRP95400 fiber optic repeaters placed on the Quantum racks
where the RIO head and RIO drop modules are located:
NOTE:
z Using 2 optical fiber pairs provides a better service and diagnostics.
z Using only one fiber pair, looping back the unused optical ports with a short fiber
helps using the diagnostics.
For more details on the diagnostics, refer to the Modicon 140NRP95400 Fiber Optic
Repeater Module User Guide.
Recommended Materials for Fiber Optic Links
Modicon does not manufacture fiber optic products such as cables, connectors, or
special tools. However, we have experience with third party suppliers of materials
and can give some guidelines on what will work with our products.