The Keysight E2271A is a 4×4 matrix switch module that routes signals between four independent inputs and four independent outputs. Built around 16 DPST latching relays arranged in a matrix topology, it enables any source to connect to any destination—or multiple destinations simultaneously—making it ideal for complex signal distribution in automated test systems. On-card logic supports maskable interrupts for relay completion notifications, while an 8-position FIFO buffer stores sequential switch commands for rapid reconfiguration with minimal CPU overhead. The module mounts as a single-wide M-Module into compatible carriers such as the E2251A, allowing integration into larger switching matrices alongside multiplexers and general-purpose relay modules.
## Technical Specifications
• Switching Configuration: 4×4 matrix
• Relay Type: 16 × DPST latching relays
• Switch Connectivity: 4 inputs, 4 outputs (2-wire switching)
• On-Card Logic: Maskable interrupt support for relay completion notification
• Command Buffer: FIFO (First-In, First-Out), 8-operation capacity
• Module Format: Single-wide M-Module
## Key Features
• Latching relay design maintains switch state without continuous power draw.
• Flexible matrix topology allows simultaneous multi-path connections.
• 8-command FIFO enables rapid setup sequences with single interrupt event.
• Interrupt masking provides integration flexibility in complex test architectures.
## Typical Applications
• Automated test equipment (ATE) requiring multi-point signal routing
• Device characterization with switched signal distribution
• Multiplexed measurement systems requiring dynamic source-to-load switching
## Compatibility & Integration
Designed for M-Module carrier platforms, including the Keysight E2251A C-size carrier. Integrates with other M-Module switching elements to build comprehensive matrix and multiplex configurations.
