455-493

Telegraph-telephone si converter

455-493 Description

Tactical end item identification.

Properties of 455-493

End Application:
Tactical and strategic relay and transmission equipment
NSN:
5805-00-879-1912
Description:
Converter,telegraph-telephone Si
Cage Code:
90073

Definition Telegraph-telephone Si Converter

An electronic device which receives, converts and transmits ringing and/or supervisory or other messages over a communication circuit in the form of audio frequency tones. May include integral interrupters, oscillators and hybrid and filter networks. Excludes generator, ringing, static and generator, ringing, machine.

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Last modified 06/28/2024