Agilent/Keysight E1361A

The Agilent/Keysight E1361A is a B-size, 1-slot VXI register-based relay matrix module that delivers high-density signal routing and switching for automated test systems. The module features a configurable 4×4 2-wire matrix with latching relays that retain their programmed state through power cycles. Relays reset to open on power-on. The E1361A supports reconfiguration as a dual 2×4 2-wire matrix or 8:1 2-wire multiplexer, making it adaptable to diverse switching architectures. Each crosspoint switches both Hi and Lo lines independently.

– Technical Specifications

Switching Performance
• Voltage rating: up to 250 Vdc and 354 Vpk ac
• Current rating: 1 A dc or ac per channel
• Power per channel: 40 W
• Power per module: 320 W / 960 VA
• Closed channel resistance: <1.5 Ω typical, <3.5 Ω end-of-life
• Maximum thermal offset per channel (differential Hi-Lo): 14 µV
• Maximum voltage (any terminal to any other terminal or chassis): 250 V dc, 250 V ac rms, 354 V peak

Module Configuration
• Device type: Register-based, A16, slave only
• Module size: B-size, 1-slot
• Relay type: Latching
• Standard matrix: 4×4 2-wire
• Alternative configurations: Dual 2×4 2-wire or 8:1 2-wire multiplexer

– Key Features

• Latching relay design eliminates holding current
• Programmed relay state preserved across power loss
• All-relays-open initialization on power-on reset
• 2-wire crosspoint architecture with independent Hi/Lo switching
• Field-reconfigurable matrix topology via jumper removal
• Scalable architecture supports matrix expansion

– Typical Applications

Automated test equipment, prototyping platforms, custom circuit development, multi-channel signal routing, production test systems requiring dynamic path reconfiguration.

– Compatibility & Integration

The E1361A integrates into VXIbus systems as a register-based module. C-size system compatibility requires the E1403C adapter. Multiple modules can be connected for expanded matrix configurations. Documentation includes user and service manuals; instrument drivers are available from Keysight Technologies.