The Agilent/Keysight Y1131A is a verification and diagnostic toolset for the Keysight 34980A Multifunction Switch/Measure Unit. It delivers relay failure troubleshooting and system maintenance prediction across compatible switching modules, reducing production downtime and test system diagnostic time.
Technical Specifications
The Y1131A comprises software and hardware components. Hardware includes custom-designed terminal blocks with pre-wired 9-pin ribbon cables terminating in D-Sub connectors that route signals and isolate individual relays during verification and diagnostic procedures. These blocks connect directly to modules installed in the 34980A mainframe.
Diagnostic capabilities encompass detection of relay shorts, opens, and single-sided shorts on differential channels. The software isolates failures to specific channels or relays depending on test methodology and failure density. Test results export to CSV format for documentation and analysis.
– Key Features
• Module-specific differential testing across all multiplexer and matrix channels
• Repeatable measurement channel isolation methodology
• Pass/fail indication with fault localization to individual relays or channels
• CSV-formatted result storage and reporting
• Hazardous voltage protection: rated for inputs to maximum module specifications; voltages exceeding 30 Vrms, 42.4 Vpeak, and 60 Vdc require extreme caution per IEC 61010-1
– Typical Applications
Relay verification and predictive maintenance on production test systems. Identification of switching faults prior to field deployment. Troubleshooting of 34980A switching module failures in established test benches.
– Compatibility & Integration
Required host unit: Keysight 34980A Multifunction Switch/Measure Unit with optional Digital Multimeter (DMM) module installed. Supported switching modules include 34921A, 34922A, 34923A, 34924A, 34925A, 34931A, 34932A, 34933A, 34937A, and 34938A. Configuration Y1131A/001 includes a verification board for multiplexer modules 34921A, 34923A, and 34925A.

















