The Keysight/Agilent/HP E1469A is a 4×16 relay matrix switch module designed for signal routing in automated test equipment and general-purpose switching applications. This C-size, 1-slot VXI module employs latching relays to deliver two-wire switching with both high and low control on each of its 64 crosspoints, plus guard/shield capability. The module supports expansion through daisy-chain interconnection to build larger matrices.
## Technical Specifications
**Matrix Configuration**
• 4 rows × 16 columns
• 64 total crosspoints
• Two-wire switching with dual control (high and low) per crosspoint
• Guard/shield capability included
**Relay Architecture**
• Latching relay design
• Closed channel resistance: <1.5 Ω initial, <3.5 Ω end of life
• Maximum thermal offset (differential Hi-Lo): 7 µV per channel
**Voltage and Current Ratings**
• Maximum voltage (any terminal to any other or chassis): 220 V DC or 250 V AC RMS
• Maximum current per channel (non-inductive): 1 A DC/AC RMS at <30 Vdc/rms; 0.3 A DC/AC RMS at <220 Vdc/rms
• Maximum power: 40 VA DC per module
**Physical and Interface**
• VXI Module: C-size, 1-slot
• QUIC easy-to-use terminal block
• Expansion connectors for module interconnection
## Key Features
• Latching relay architecture eliminates continuous hold power
• Low contact resistance maintains signal integrity across switching cycles
• Dual high/low switching per crosspoint enables flexible signal control
• Guard capability reduces crosstalk in sensitive measurements
• Modular design supports expansion via daisy-chain cabling
## Typical Applications
Signal routing in production test systems, burn-in test environments, and general-purpose switching for multi-channel test configurations requiring moderate voltage and current handling.
## Compatibility & Integration
Multiple E1469A modules interconnect using the Model E1468-80002 daisy-chain cable. Three modules create a 4×48 matrix; four E1468A modules with interconnection cables form a 16×16 matrix. The E1469A shares the same component card as the E1460A. For applications exceeding 64 crosspoints where high voltage/power capability is not required, the E1465/66/67A relay matrices offer alternative configurations.
