Agilent Technologies (HP) HP 3789B / 003 011 200

Transmission Test Set DS3 The HP 3789B is a more powerful test set offering outstanding monitoring and troubleshooting capabilities. A built-in demultiplexer allows it to perform measurements on both DS1 and DS3 signals from a OS3 access point. On equipment using the new C-bit parity frame format, the HP 3789B can measure the end-to-end performance of a transmission path in both directions simultaneously from a single access point. The instrument can operate with test patterns that are unframed, or framed in M 13 or C-bit parity format. A comprehensive error injection facility allows for stress-testing of equipment and interfaces. It can generate and detect the new "DS3 Idle" signal. Measurements of timing jitter on both the DS3 signal and on any of the twenty-eight embedded OSI digroups are optionally available. Jitter-induced faults are normally very difficult