Agilent / Keysight E1466A 16 x 16 Relay Matrix Switch

The Agilent/Keysight E1466A is a C-size VXI relay matrix switch module designed for signal routing in automated test systems. This register-based, 1-slot module delivers a 4×64 two-wire switching matrix with independent high and low switching at each crosspoint. Built on latching armature relay technology, it minimizes power consumption while maintaining high reliability across large-scale switching applications.

Technical Specifications

• Matrix Configuration: 4×64 two-wire switching matrix


• Module Type: C-size, 1-slot VXI relay matrix switch


• Relay Type: Electromechanical latching armature relays


• Maximum Voltage: DC 200 V; AC rms 170 V; Peak 238 V p-p


• Maximum Current: 1 A per channel common, non-inductive


• Maximum Power: 30 W per channel; 62.5 VA per module (resistive load)


• Relay Life: Minimum 10⁷ operations at no load


• Wire Size: 18 to 26 AWG screw terminals


• Power-up State: Relays open upon power-up


• Power-down State: Relay states remain unchanged

Key Features

• Expandability: Chain multiple modules using QUIC terminal block interconnections to scale row and column configurations. A full 13-slot VXI mainframe supports up to 3072 two-wire crosspoints. Four E1466A modules create a 4×256 matrix configuration.


• Modular Terminal Blocks: QUIC easy-to-use terminal blocks enable topology changes via block swap. The E1466A shares the same switch card with E1465A and E1467A modules - terminal block selection determines final matrix configuration.


• Channel List Management: Downloadable channel lists stored in onboard memory


• Firmware: Downloadable command module firmware

Compatibility & Integration

• Programming Support: SCPI (I-SCPI Win 3.1, I-SCPI Series 700, C-SCPI LynxOS, C-SCPI Series 700)


• Framework: VXIplug&play Framework (Windows 95/NT)


• Drivers: Keysight VXIplug&Play driver support Physical: Shipping dimensions 12 in. × 12 in. × 6 in.; shipping weight approximately 5 lbs.