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National Stock Number:
5805-01-418-1625
Federal Supply Class:
5805
National Item Identification Number:
014181625
Description:
CONVERTER,TELEGRAPH-TELEPHONE SI
Detail:
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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Manufacturer Information:
| 218-1055-020 | 95105 | ROCKWELL COLLINS, INC. | | SP-152 | 31870 | VIKING ELECTRONICS, INC. |
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Techincal Specification:
| COMMUNICATION CIRCUIT QUANTITY | 4 | | RECEIVED LINE SIGNAL FREQUENCY RATING | 2500.00 HERTZ MINIMUM AND 2700.0 HERTZ MAXIMUM | | OVERALL DEPTH | 7.000 INCHES NOMINAL | | OVERALL HEIGHT | 1.750 INCHES NOMINAL | | OVERALL WIDTH | 19.000 INCHES NOMINAL | | SIGNAL TYPE | RING DOWN | | SWITCHBOARD SIDE CURRENT TYPE | DC | | SPECIAL FEATURES | TELEPHONE LINE CONVERTER MODULE PROVIDES THE TALK BATTERY,RING GENERATION AND OFF HOOK DETECTION NECESSARY TO OPERATE A STANDARD TELEPHONE;IT ALSO PROVIDES THE RING DETECTION AND LINE SEIZURE NEEDED WHEN CONNECTING TO A PBXSTATION OR CO TRUNK;ON BOARD IS A 2-WIRE TO 4-WIRE HYBRID THAT SEPARATES THE TRANSMIT AND RECEIVE AUDIO PATHS;THE BOARD ALSO CONTAINS A PULSE CODE MODULATOR AND DEMODULATOR WHICH CONVERTS THE AUDIO SIGNALS INTO A SERIAL BIT STREAM;THE USE OF COMPANDORS FURTHER REFINE THE QUALITY OF THE AUDIO;THE OUTPUT IS 4-WIRE 600 OHM AUDIO OR SYNCHRONOUS SERIAL DATA VIA A RS-422 INTERFACE;AN ON BOARD CLOCK GENERATOR IS PROVIDED (SELECTABLE DATA RATE FROM 28KBPS TO 256KBPS) OR THE SYSTEM WILL ACCEPT AN EXTERNAL CLOCK SIGNAL | | TRANSMITTED LINE SIGNAL FREQUENCY RATING | 2590.0 HERTZ MINIMUM AND 2610.0 HERTZ MAXIMUM |
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