Extend Voice Over Fiber

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Temperature Icon

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Features
  • Hardened to operate in -40°C to +70°C environment
  • Redundant power capable, 24-56VDC or 125VDC depending on model
  • Available with ST or SC connectors for singlemode or multimode fiber
  • Supports Caller ID
  • Supports Call-Forward Disconnect (Hook Flash)
  • Supports Ringdown Function (FXS to FXS Hotline Phone)
  • Standard 2 wire analog phone lines, dial-up modems, and fax machines
  • Limited Lifetime Warranty

  • Made in USA
Overview

The RLH 2 Channel Plain Old Telephone Service (POTS) DIN Fiber Link system transports two analog phone lines over fiber optic cable. The system will operate over a wide temperature range and has been designed to provide reliability in harsh environments.

Common applications include extending analog lines over fiber for the benefit of electrical isolation, to achieve long distances, or through noisy environments to reduce EMI. The system is compatible with all traditional analog phone services, dial-up modems, meters, and fax machines.

A comprehensive set of LED’s on the front panel indicate the status of the power, fiber, and phone lines. The standard system powering requirement is 24-48VDC, with an optional 125VDC available. This rugged system also features dual redundant power inputs with a system alarm contact relay, and comes standard with DIN clip and wall mount ears.

Specifications

For a comprehensive review of the product specs, please see the Data Sheet, or feel free to contact us with any questions.


Wavelength:
Multimode: 1310nm
Singlemode: 1310nm/1550nm


Maximum Fiber Attenuation/Distance:
Dual Fiber Multimode (50/125μm & 62.5/125μm): 1.25mi./2km range
Dual Fiber Singlemode (9/125µm): 12.4 mi./20km range, 37 mi./60km range, 74 mi./120km range
Single Fiber, Bi-Directional Singlemode (9/125μm): 12.4 mi./20km range, 37 mi./60km range


Fiber Connector Type:
ST or SC


Physical Dimensions:
H 4.93” x W 1.20” x D 3.93” (measurement not including DIN clip)
Includes standard T-35 DIN rail clip and wall mount ears


Operating Temperature:
-40 ̊C to +70 ̊C


Operating Humidity:
95% non-condensing

Diagrams
2 Channel POTS System

Phone Line Extension

2 Channel POTS System

Ringdown (Hotline) System

Downloads

Download the RLH Data Sheet

Download the RLH User Guide

Ordering
  • A complete system requires 2 devices of either configuration:
    • One (1) FXO device paired with one (1) FXS device for a typical phone line extension
    • Two (2) FXS device paired for a ringdown hotline
  • Bi-Directional single fiber models require an A side and B side unit for a complete system
  • Add -A to the end of the part number for 125VDC input power option

Please submit a quote request or contact your RLH sales representative for pricing and delivery information.

Numbers

PD-2FXO-03-1
PD-2FXS-03-1
PD-2FXO-04-1
PD-2FXS-04-1
PD-2FXO-40-1
PD-2FXS-40-1
PD-2FXO-41-1
PD-2FXS-41-1
PD-2FXO-45-1
PD-2FXS-45-1
PD-2FXO-50-1
PD-2FXS-50-1
PD-2FXO-51-1
PD-2FXS-51-1
PD-2FXO-55-1
PD-2FXS-55-1
PD-2FXO-10-1
PD-2FXS-11-1
PD-2FXO-14-1
PD-2FXS-15-1