AB Description Allen Bradley Modules 1786-RPFM Fiber Repeater System Module

Product:Allen-Bradley 1786-RPFM Repeater Module in one year warranty stocked

The ControlNet network uses a modular fiber repeater system. The 1786-RPA/B repeater adapter connects to both coax and fiber media, supplies power to the repeater modules, and repeats signals from the coax media to the fiber repeater modules. The repeater adapter can supply a maximum of 1.6 A @5V DC of current to power the repeater modules. To determine how many repeater modules you can use with a single repeater adapter, calculate the current draw of all repeater modules in your system. Do not exceed 1.6 A @ 5V DC per repeater adapter.

There are two types of repeater modules: coax repeater (catalog number 1786-RPCD) and fiber repeaters (catalog numbers 1786-RPFS, 1786-RPFM, 1786-RPFRL/B, and 1786-RPFRXL/B). Although you can repeat coax signals on a network by using a 1786-RPCD module, this manual mainly focuses on fiber cabling for the fiber repeater modules. See the ControlNet Coax Media Planning and Installation Guide, publication CNET-IN002, for more information on ControlNet copper networks. The fiber repeater modules send an optical signal through the fiber cable to the next fiber repeater module on the network. The combination of the repeater adapter (see below) and a fiber repeater module, such as the 1786-RPFM, is referred to as a fiber repeater.

Fiber type 62.5/125 µm micron multi-mode OM-1 fiber

Fiber termination type ST (plastic or ceramic only; do not use metal connectors)

Fiber operating wavelength 1300 nm

Optical power budget 13.3 dB(1)

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