3784 A Digital Transmission Analyzer

The Agilent 3784 A is a digital transmission analyzer. The Agilent 3784 A is categorized as test and probe equipment. The Agilent 3784 A is a tabletop instrument.^[1][2]

The Agilent 3784A performs G.821 error analysis at 704 kb/s, 2, 8, and 34 Mb/s. The Agilent 3784A has optional jitter generation and measurement at 2, 8, and 34 Mb/s as Option 002. The Agilent 3784A includes a clock synthesizer for rates between 1 kb/s and 50 Mb/s. The Agilent 3784A has optional V.11 interfaces for testing X.21 leased circuits. The Agilent 3784A has binary TTL/ECL interfaces for measurements up to 50 Mb/s using the internal clock synthesizer. The Agilent 3784A provides measurement presets, automatic receiver setup, and error performance pass/fail thresholds. The Agilent 3784A provides automatic jitter tolerance and transfer plotting routines. The Agilent 3784A has a through-data mode that allows jitter to be added to a structured signal for jitter tolerance testing of demultiplexers.^[3]

Digital transmission analyzers sit in electronic test workflows rather than in wafer fabrication process modules. Digital transmission analyzers are used on communication links, interface circuits, and transmission equipment during development, integration, maintenance, and troubleshooting. Digital transmission analyzers are typically applied after a device, board, or subsystem can send and receive digital signals and before the communication path is accepted for service or further system integration.

The Agilent 3784A is a portable error performance and jitter test set. The Agilent 3784A offers standard telecom interfaces at 704 kb/s, 2, 8, and 34 Mb/s. The Agilent 3784A has the option of codirectional interfaces at 64 kb/s and V.11 interfaces for testing X.21 leased circuits. The Agilent 3784A supports jitter tolerance testing of demultiplexers through its through-data mode.^[3]