Sonet H4 byte generator

Details Sonet H4 byte generator Sonet H4 byte generator

1989-05-12

1991-03-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3701101, 375116, H04J 306, H04J 312

Patent

active

050017080

ABSTRACT:
An H4 byte generating algorithm is implemented by circuitry which includes counters for generating the H4 byte. The circuit is provisioned to indicate whether it is operating in a terminal multiplexer mode or an add-drop multiplexer mode. In the terminal multiplexer mode the counters are allowed to free run and continually produce successive H4 byte outputs. In the add-drop multiplexer mode selected counter outputs are compared with the received H4 byte and the number of mismatches is accumulated by a mismatch counter. When the mismatch counter reaches a predetermined number the value of the received H4 byte is loaded into the H4 byte counters and the mismatch counter is reset. Each time a proper match between H4 counter outputs and the received H4 byte is sensed, the mismatch counter is reset to 0. The presence of a red alarm will also result in the resetting of the mismatch counter and free running of the H4 byte counters.

REFERENCES:
patent: 4719624 (1988-01-01), Bellisio
patent: 4835768 (1989-05-01), Hubbard et al.

Affiliated with

Also associated with

Rating

Sonet H4 byte generator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sonet H4 byte generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sonet H4 byte generator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2016055