NetTest introduced a new “Jitter and Wander” option for its SDH/SONET module, a component of the company CMA 5000 Multi Layer Test Platform. NetTest’s Optical Transport Analysis (OTA) module is a field portable tester designed to help network engineers to minimize the effects of recurrent phenomenon such as network clock synchronization and wander and timing instabilities during the installation, commission and maintenance of broadband networks. In addition to testing jitter and wander from DS1/E1 up to OC-48/STM 16, the OTA module also provides automatic jitter tolerance measurements, jitter transfer measurements and test reports.
http://www.nettest.com
NetTest Enhances its SDH/SONET Tester
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From the Technology Graveyard
You just read about SONET. Here is what it replaced:
PDH (T1/E1/DS3) served from 1962. What ultimately replaced it?
PDH (T1/E1/DS3) time-division multiplexing that interleaved 24 (T1) or 30 (E1) 64 kbit/s voice channels into a frame, then stacked those into higher rates by bit-stuffing loosely synchronized streams. Its job passed to SONET — but the problem it solved, and the ideas it proved, live on in what replaced it. The standard rests here in the archive. One of 198 technologies here that opened a door and then held it for the next.
On this day
November 12From 25 years of the Converge Digest archive.