Agilent/Keysight E4203A

The Agilent/Keysight E4203A is a protocol line interface module designed for the Broadband Series Test System (BSTS), enabling test and analysis of fast-packet networks built on ATM and BISDN technologies. Operating at 155 Mb/s, this module supports ATM traffic management, signaling validation, and Packet over SONET/SDH testing. The E4203A integrates into the modular BSTS chassis to deliver protocol-level testing capabilities for telecommunications R&D, product development, field trials, and quality assurance.

This product is obsolete.

Technical Specifications

• Data Rate: 155 Mb/s


• Technology: ATM (Asynchronous Transfer Mode) / BISDN (Broadband Integrated Services Digital Network)


• Form Factor: Module for BSTS chassis installation

Key Features

• 155 Mb/s line interface for high-speed protocol validation


• ATM traffic management and signaling test support


• Packet over SONET/SDH (POS) capability


• Switch and router interworking performance testing


• Third-generation network protocol verification


• Modular architecture for flexible system configuration

Typical Applications

• ATM network protocol validation and conformance testing


• BISDN technology characterization


• POS (Packet over SONET/SDH) performance analysis


• Switch/router interworking verification


• Telecommunications R&D and product development


• Field trial deployment support


• Quality assurance and acceptance testing

Compatibility & Integration The E4203A operates exclusively within the Agilent/Keysight Broadband Series Test System (BSTS) platform. It functions in conjunction with other BSTS modules and associated test software to provide integrated protocol testing across the ATM network stack.