685E4B

Telegraph-telephone si converter

685E4B Description

13.400 inches overall length, 0.250 inches overall height, 6.600 inches overall width, 21.0 volts dc voltage rating, converter, telephone signal joint electronics type designation system item name.

Properties of 685E4B

Overall Length:
13.400 inches
Overall Height:
0.250 inches
Overall Width:
6.600 inches
Dc Voltage Rating:
Between 21.0 volts and 55.0 volts
Joint Electronics Type Designation System Item Name:
Converter, telephone signal
Joint Electronics Type Designation System Item Type Number:
Cv-2703/gt
Electrical Power Source Relationship:
Operating
Internal Battery Accommodation:
Not included
Signal Type:
Ring down and supervisory
Switchboard Side Current Type:
Dc
Transmitted Line Signal Frequency Rating:
2.6 kilohertz
Received Line Signal Frequency Rating:
2.6 kilohertz
Communication Circuit Quantity:
1
NSN:
5805-00-498-9427
Description:
Converter,telegraph-telephone Si
Cage Code:
74861

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 04/28/2024