The Agilent/Keysight E4861B is a VXI plug-in base module for the ParBERT 81250 platform, enabling automated bit error ratio testing of high-speed digital communication systems from 21 Mb/s to 3.35 Gb/s. This single-slot module accepts two front-end cards—such as the E4862B generator or E4863B analyzer—to configure parallel or serial test channels with synchronized operation across up to 64 channels. The E4861B delivers low intrinsic jitter, supports differential and single-ended I/O, and accommodates memory-based patterns up to 16 Mbit per channel, making it suitable for characterization and validation in R&D and manufacturing environments targeting PCIe, SATA, and 10GbE standards.
Technical Specifications
• Data Rate Range: 21 Mb/s to 3.35 Gb/s
• Maximum Clock Rate: 3.35 GHz (with E4808A or E4809A clock modules)
• Channel Count: Up to 64 synchronized channels (with appropriate front-end modules)
• Memory Depth: 16 Mbit per channel
• Pattern Types: PRBS up to 2^31-1, Pseudo Random Word Sequences (PRWS), memory-based patterns
• Transition Time (20%-80%): 75 ps typical
• Input Sensitivity: Less than 50 mV
• Jitter Injection: 500 ps delay line
– Key Features
• Modular architecture accommodates two front-end plug-in cards for flexible test configurations
• Differential and single-ended data I/O for signal conditioning across varied implementations
• Low intrinsic jitter with controllable jitter injection for signal integrity testing
• VXI form factor provides integration with standard modular instrument chassis
– Typical Applications
High-speed digital communication device validation, serial protocol characterization, parallel bit pattern testing, and manufacturing test environments requiring multi-channel synchronized operation at data rates up to 3.35 Gb/s.
– Compatibility & Integration
Designed for the ParBERT 81250 platform and operates with Keysight 81250 ParBERT Measurement Software. Compatible with E4862B (3.35 Gb/s generator frontend) and E4863B (3.35 Gb/s analyzer frontend) modules. Requires E4808A or E4809A clock modules for maximum performance.
