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4-Wire Telephone

Point-to-Point | Fiber Optic Links | Model F272xB | Now With Stereo Audio Features!

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(1-800-537-2296 or 302-894-0699)

This product provides a fiber optic link for two 4 wire analog telephone lines. Full duplex secure and transparent voice communications are supported. The F272xB products also support stereo audio signals in the same way.

These devices are currently in use in the UK in an unusual application. This application involves military aircraft development. Fighter aircraft have to be able to operate in very demanding environments, including those with close proximity to high power RADAR and other transmitters. In order to ensure that the sophisticated electronics on board will work properly, part of the design process demands that the aircraft are "illuminated" by such RADAR systems at distances of tens of feet. The essential communications required during such tests means that the use of copper conductors between the control center and the aircraft is simply not possible. Only fiber can accommodate the distances required and "tune out" other interference.

In the UK, the problems of distance and interference on board these aircraft have been solved by the use of a system which incorporates two F272xB VERSITRON four wire converters. Contained in a fully screened unit, each piece of equipment allows for the use of up to four standard aircraft headsets. Thus, giving perfect clarity of communication.


  • DB9 connector

  • 1/8" TRS connector (audio)

  • Distances to 100km

  • Choice of multimode or singlemode fiber

  • LC optical connector

  • SFP fiber module technology


Model F272xB Product Links


Selection Guide

83 Albe Drive - Suite C - Newark, DE 19702
Need Help? Call: 1-800-537-2296, or 302-894-0699 Fax: 302-894-0624
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