Digital concentrator switch

Details Digital concentrator switch Digital concentrator switch

1981-03-03

1983-05-24

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 87, 179 18FC, H04Q 1104, H04J 314

Patent

active

043853803

ABSTRACT:
In a fully digital telephone switching system, a digital switch may serve a number of PCM sub systems each having separate forward and reverse highways and each serving a number of subscribers' lines. The highways are grouped in blocks of eight, from which intelligence is received in serial byte-interleaved form and converted by serial-parallel converters to parallel byte-interleaved form. While in this form they are switched to other channels and applied to a super-multiplexer which they leave in parallel byte-interleaved form from which they are restored by another converter to serial byte-interleaved form for application to the switch's outputs. For the reverse channel the arrangement is the reverse of the above, i.e. serial-parallel conversion, switching and parallel-serial conversion to the line multiplex highways. For local calls a loop-back connection is provided via a fixed delay of half a frame time. Thus, if the outputs fail, the arrangement can still handle local calls. Further it is usable on its own as a small exchange.

REFERENCES:
patent: Re28958 (1976-09-01), Zafiropulo et al.
patent: 2929879 (1960-03-01), Jacobaeus et al.
patent: 3786418 (1974-01-01), Nick
patent: 3965301 (1976-06-01), Kerorkian

Affiliated with

Also associated with

Rating

Digital concentrator switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital concentrator switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital concentrator switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2148715