Muldem with monitor testing on-line and off-line paths

Details Muldem with monitor testing on-line and off-line paths Muldem with monitor testing on-line and off-line paths

1980-06-03

1983-03-15

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

371 71, H04J 314

Patent

active

043769993

ABSTRACT:
A muldem (100) has a monitor (101) for testing data path failures through the muldem (100) by comparing the latter's input and output. The muldem (100) has normally on-line data paths (103, 104) therethrough, and includes normally off-line standby data protective switching means (108, 109) providing alternate data paths. The monitor (101) tests on-line and off-line data paths before and after protective switching to the standby alternate data path, to guard against silent failures and to prevent switching to an inoperative path. In an auto-revert mode, a latched display continues to display an alarm, after the malfunction is corrected and the muldem has switched from standby to main.

REFERENCES:
patent: 3715503 (1973-02-01), Jungbluth et al.
patent: 3920919 (1975-11-01), Aillet
patent: 4228535 (1980-10-01), Workman et al.
patent: 4241445 (1980-12-01), Payen
patent: 4266293 (1981-05-01), Anderson et al.
"Product Description, Digital Multiplexer/Demultiplexer DMX-13 A/B/C", Rockwell International, 1-19-79.

Affiliated with

Also associated with

Rating

Muldem with monitor testing on-line and off-line paths does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Muldem with monitor testing on-line and off-line paths, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Muldem with monitor testing on-line and off-line paths will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1660424