Extend an Analog DID Trunk Line Over Fiber

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Features
  • Compatible with 2 wire DID Systems
  • DID Sub (PBX) side is line powered
  • DID CO (trunk) uses 24-56VDC power
  • Uses reverse battery switching
  • Available in Single and Multi-mode
  • Available with ST or SC Connectors
  • Uses 24~48VDC Local Power
  • Compatible with wide variety of housings
  • Limited Lifetime Warranty

  • Made in USA
Overview

The RLH 2-wire DID (Direct Inward Dialing) fiber link card system provides a fiber optic transmission of a Telco DID TRUNK line to a PBX (loop start) over two optical fibers.

The signal provided over copper wiring is converted to optical, transmitted over fiber optic cable, and converted back into the original copper-based signal at the other end. This allows for network extension over long distances, and provides unmatched electrical isolation between both ends of the network.

The 2-wire DID system transmits signals in the voice-frequency or audio range (300Hz-3.4KHz) while providing reverse battery signaling to communicate call status. The 2 Wire DID system is temperature hardened for tough environmental conditions where 24/7/365 operation and rugged reliability are critical, and is covered by our Unconditional Lifetime Warranty.

This fiber link card is designed to be installed into any of the RLH fiber link card housings, and occupies a single card slot.

Specifications

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


Transmission Method:
Frequency modulated light via two optical fibers


Wavelength:
Multimode: 850nm
Singlemode: 1310/1550nm


Fiber Type/Distance:
Multimode (62.5/125µm): 1.5 miles/2.4km
Singlemode (9/125µm): 9 miles/15km; Long Haul 37 miles/60km


Fiber Connector Type:
ST or SC


Dimensions:
7in. x 4in. x 1in. (177.8mm x 101.6mm x 25.4mm)
(Standard RLH Fiber Link Card Form Factor)


Operating Temperature:
-40˚F to +158˚F (-40˚C to +70˚C)


Operating Humidity:
95% non-condensing

Diagrams
2 Wire DID System

2 Wire DID System

Downloads

Download the RLH Data Sheet

Download the RLH User Guide

Download Layout

Download Layout

Download the DXF File

Download the DXF File

Download the DWG File

Download the DWG File

Ordering
  • A complete system requires a CO and a SUB card
  • 62.5 µm multimode fiber compatibility is standard, add -50 to part number for 50 µm compatibility
  • This card is designed to be installed into a Card Housing

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

Numbers

8806-1264-05
8806-1274-05
8805-1264-05
8805-1274-05
8806-1262-03
8806-1272-05
8805-1262-03
8805-1272-05
8806-1262-03-LH
8806-1272-05-LH
8805-1262-03-LH
8805-1272-05-LH