Agilent / Keysight E1343A 16-Channel GP High-Voltage Relay Multiplexer

The Agilent/Keysight E1343A is a 1-slot B-size VXI relay multiplexer module delivering high-voltage switching across 16 channels with configurable architectures. Built on reed relay technology, the module supports operation as a single 1×16 three-wire multiplexer, two independent 1×8 three-wire multiplexers, or a 1×8 six-wire multiplexer - enabling flexible test configurations from simple analog routing to four-wire resistance measurements and precision 6-wire setups. Register-based control via SCPI commands and downloadable firmware provide straightforward integration into automated test systems.

Technical Specifications

Switching Performance

• 16 channels, each with high, low, and guard connections


• Reed relay construction with break-before-make switching


• 350 channels/second typical scanning rate


• Relay life: 10⁸ operations (no load); 10⁷ operations (rated load)


• Relays open on power-up and power-down Electrical Ratings


• Maximum voltage (any terminal to any other or chassis): 250 Vdc / 250 Vrms ac


• Maximum current per channel common (non-inductive): 50 mA


• Maximum power per channel: 1 VA Module Architecture


• VXI device type: Register-based, A16, slave only


• Form factor: B-size, 1 slot


• Connector: P1


• Screw terminal connections: 16–26 AWG wire (0.5–1.5 mm)


• Weight: 10 lbs (approximate)


• Dimensions: 12 × 10 × 8 in (approximate) Power Consumption


• +5 V: 0.2 A


• +12 V: 0.13 A


• +24 V: 0 A


• −5.2 V: 0 A


• −12 V: -

Key Features

• Multiple configuration modes for general-purpose analog switching


• Shared switch card design with E1345A, E1346A, E1347A, E1355A, E1356A modules


• Analog bus connectivity for inter-module communication


• SCPI-based control with downloadable command module firmware

Compatibility & Integration The E1343A fits directly into B-size VXI mainframes (Agilent E1300B, E1301B). For C-size mainframe integration, deploy the E1403C active adapter. Analog bus cables enable connection with companion instruments such as the E1326B DMM. Instrument drivers and software support include I-SCPI (Win 3.1, Series 700), C-SCPI (LynxOS, Series 700), VXIplug&play frameworks, and panel drivers.