Agilent E1460A VXI Relay Multiplexer

The Agilent E1460A is a high-density relay multiplexer module for the VXIbus platform, engineered to streamline signal routing in complex automated test systems. As part of Agilent Technologies’ (now Keysight) legacy VXI portfolio, this 64-channel module delivers precision switching for low-voltage signals across diverse test scenarios. The Agilent E1460A features Form C (SPDT) dry-reed relays with gold-plated contacts, enabling reliable switching of analog/digital signals up to 1A while maintaining low thermal EMF. Its matrix architecture supports flexible 4-wire resistance measurements and channel isolation >10 GΩ, critical for semiconductor validation and sensor calibration. Designed for seamless integration with Agilent 75000 mainframes, the E1460A reduces test system footprint by consolidating switching functions that traditionally required multiple instruments. Backed by VXI’s deterministic triggering, it achieves channel-to-channel settling times <500 µs, making it indispensable for high-throughput manufacturing test racks in aerospace and electronics industries.

Technical Specifications

High-density switching: The Agilent E1460A integrates 64 SPDT relays in a compact C-size module, reducing system footprint by 60% compared to discrete solutions. Gold-plated contacts ensure <10 mΩ path resistance even after 10⁹ cycles.

Measurement integrity: Ultra-low thermal EMF (<0.5 µV) prevents signal corruption in sensitive DC measurements. Guarded triaxial connections minimize leakage currents for high-impedance testing.

Deterministic control: Hardware-triggered scanning via VXI TTLTRG lines enables synchronized operation with DMMs and sources. Built-in relay sequencer prevents contact welding during hot-switching.

Legacy compatibility: Native support for SCPI commands and Agilent VEE/LabVIEW drivers accelerates integration. The Agilent E1460A accepts HPIB control via embedded converters (e.g., E1406A).

The Agilent E1460A excels in automated test systems requiring precision signal routing:

Semiconductor Validation: Routes parametric signals to SMUs during wafer probe testing

Aerospace HIL Testing: Switches between 500+ sensor simulations in flight control rigs

Medical Device Calibration: Multiplexes resistance standards for patient monitor verification

Energy Systems: Cycles battery cell measurements in EV pack testers

Telecom: Selects antenna paths in base station RF parametric tests

Installation and Maintenance

Pre-installation preparation: Verify VXI mainframe slot compatibility and cooling capacity (>20W/slot). Pre-burn-in relays for 24 hours at 50% duty cycle to stabilize contact resistance.

Maintenance recommendations: Monitor relay cycle counts via *RST? SCPI command. Clean card-edge connectors annually with fluorocarbon spray. Replace modules exceeding 10⁹ cycles. The Agilent E1460A supports hot-swap when mainframe provides VXI-11 power sequencing.

Product Guarantee

Keysight Technologies provides 1-year warranty on refurbished E1460A units, including relay contact resistance verification. All modules undergo 72-hour load cycling and NIST-traceable path resistance testing. Legacy support includes access to archived firmware and calibration procedures compliant with ISO 9001:2015.