Agilent/Keysight E1346A

The Keysight E1346A is a B-size, 1-slot VXI module engineered for high-speed data acquisition and analog switching in precision test environments. It has 48 single-ended analog input channels with dedicated low and guard terminals, enabling flexible signal routing and isolation. Reed relays deliver break-before-make switching with 10^8 operations at no load and 10^7 operations at rated load.

The module scans at 600 channels/second and maintains open relay states during power down and power up for safety-critical applications.

Technical Specifications

• Module Type: Register-based VXI, B-size, 1-slot form factor


• Channels: 48 single-ended analog inputs plus 1 low and 1 guard terminal


• Relay Technology: Reed relays with break-before-make switching action


• Relay Life: 10^8 operations (no load); 10^7 operations (rated load)


• Scanning Rate: 600 channels/second typical


• Terminal Compatibility: 16–26 AWG wire (1.5, 1.2, 0.9, 0.75, 0.5 mm)


• Power States: Relays open on power down and power up

Key Features

• Configurable low/guard isolation via removable factory-installed jumper


• Analog bus connector on faceplate for direct integration with DMMs and multiplexers


• Screw terminal block interface (ordered separately)


• Shared switch card topology with E1343A, E1345A, E1347A, E1355A, and E1356A modules


• Matrix configuration determined by terminal block selection

Typical Applications

• Multi-channel analog signal acquisition


• High-speed data logging and test automation


• Signal routing and switching in instrumentation systems


• Automated test equipment (ATE) environments requiring fast channel scanning

Compatibility & Integration The E1346A operates in B-size VXI mainframes (Agilent E1300B, E1301B) and C-size mainframes with the E1403C active adapter. Analog bus connectivity supports direct measurement with Keysight E1326B and E1411B DMMs, as well as slot-adjacent multiplexer modules. External wiring connects via optional screw terminal blocks.