Allen-Bradley 1797-RPFM ControlNet Ex Fiber Repeater Module

The 1797-RPFM is an Allen-Bradley module that belong to the Flex Ex modules. This module is ControlNet Ex Fiber Repeater Module. It is used in combination with a repeater media adapter, to form a repeater hub that is approved for installation Hazardous application areas. This module enables extension of ControlNet Ex segments, allowing other nodes to connect to the existing Controlnet network.

This module has Two (2) Fiber links channels with allowable Fiber media length of 3 Km. The embedded fiber port is appropriately used with 62.5…125 mm fiber type and connector type of ST (plastic or ceramic). The module’s fiber optic wavelength is 1300 nm and Optical Power Budget is 13.3 dB.

The module’s communication rate is 5Mbps, with embedded Channel 1 and Channel 2 Status indicators. This module carries agency certifications from CENELEC for C II 2G ib[ia] IIC T4 U approvals, UL, C-UL for Class I Division 1 Groups A-D T4 Class I Zone 1 AEx ib [ia] IIC T4 ratings, FM Class I Division 1 Groups A-D T4 Class I Zone 1 AEx ib IIC T4, INMETRO for BR-Ex ia/ib IIB/IIC T4 and IECEx for Ex ib IIC T4 and Ex ib[ia] IIC T4.

Technical specifications for 1797-RPFM

ManufacturerRockwell Automation

Part Number/Catalog No.1797-RPFM

Product TypeControlNet Ex Fiber Repeater Module

Communication Rate5 Mbits

Fiber Media Length3 km

Fiber Type62.5-125 mm

Fiber Termination TypeST Plastic or Ceramic

Fiber Operating Wavelength1300 mm

Optical Power Budget13.3 dB

Input Power5.4V

Weight100 g

BrandAllen-Bradley

Fiber Optic TransmitterOptical peak output power Poptical < 1 mW

IndicatorsChannel 1 status - green Channel 2 status - green

IS Media TypeEx ia IIB/IIC T4, AEx ia IIC T4, Class I, Division 1 Groups A to G T4

IS Module TypeEx ib IIB/IIC T4, AEx ib IIC T4, Class I Division 1 Groups A to D T4