Agilent 3789B

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The HP 3789B is a step up from the 3789A, which provides all the basic pattern generation and error measurement capability required for the installation, commissioning, and maintenance of DS3 digital transmission equipment including cable, digital radio, satellite, and lightwave systems. The 3789B is a more powerful test set offering outstanding monitoring and troubleshooting capabilities. A built-in demultiplexer lets it perform measurements on both DS1 and DS3 signals from a DS3 access point. On equipment using the C-bit parity frame format, the 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 M13, or C-bit parity format. A comprehensive error injection facility allows for stress-testing of equipment and interfaces. It can generate and detect the "DS3 Idle" signal.

Measurements of timing jitter on both the DS3 signal and any of the 28 embedded DS1 digroups are optionally available. The built-in access switch controller lets the 3789B selectively measure on a number of DS3 inputs via the 3756A access switches to form a powerful stand-alone monitoring system. An optional built-in disc drive can be used for extended data logging applications. HP-IB and RS-232-C ports are standard.

• Binary bit-by-bit error detection
• Parity, frame, and BPV error measurements
• Error analysis to latest recommendations
• Optional DC operation from station batteries
• Single-key measurement setup using preset memory
• Integrated access switch controller
• Built-in DS3 to DS1 multiplexer
• Error and jitter tests at DS1 & DS3
• External events and voltages monitor inputs
• M13 & C-Bit parity generation & measurement
• DS3 idle signal generation & detection
• Measurements: DS3 errors, Error bursts, Error distribution, DS3 analysis, DS3 jitter, DS1 errors, DS1 Jitter, C-Bit parity errors, C-Bit alarms, FEBE bits
• Optional built-in data logger
• HP-IB, RS-232-C ports