Digital span conversion circuit

Details Digital span conversion circuit Digital span conversion circuit

1983-06-22

1986-07-01

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

375 76, 375 17, H04L 2506

Patent

active

045982686

ABSTRACT:
In a telecommunications switching system, a thick film digital span conversion circuit is connected between a digital span and a switching network of the switching system. The circuit converts data, which is encoded for digital span use, to TTL logic coding for use by the switching network. The telecommunications switching system also provides for duplicated data transmission through the switching network. Duplicated conversion circuits are employed in an active/standby configuration under CPU control. The present circuit is relatively small in size and has minimal power consumption.

REFERENCES:
patent: 2700696 (1955-01-01), Barker
patent: 3461390 (1969-08-01), Mack
patent: 4413335 (1983-11-01), Clements

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