Sonet alarm indication signal transmission method and apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 23, 1993
Grant Date -
N/A
app pub date -
Jul 3, 1991
filing date -
Jul 3, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods and apparatus for quickly generating and transmitting SONET AIS signals are disclosed. Upon detecting a failure condition at the receiving side of a SONET terminating equipment, the SONET terminating equipment inserts an internal alarm control signal (e.g. a byte of all ones) into at least one predetermined transport overhead timeslot (e.g. E1). On the transmitting side, the transmitting SONET terminating equipment monitors the predetermined timeslot(s) and detects whether an indication of the internal alarm control signal has been received. If so, the transmitting SONET terminating equipment inserts an appropriate alarm in predetermined overhead and data timeslots of the outgoing SONET frame signal as specified by proposed AIS standards.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully