ISDN Test Set
Rugged and compact, the 550B+ offers a full array of features, functions, and performance capabilities with
considerable built-in flexibility to turn-up and troubleshoot Basic Rate ISDN (BRI), EBS (P-Phone), and POTS, and
supports all U.S. call controls and ISDN central office switches. New enhancements verify teleconferencing technology,
and give the TPI 550B+ the ability to test G.821 in BERT as well as providing more BERT patterns and 3.1K audio
bearer capabilities. Other added enhancements include test macros, parameter download, AutoSPID, and IDSL
testing. A three-year Firmware Enhancement Option enables easy upgrades to meet evolving test requirements
and ensures a solid return on investment.
