Agilent/Keysight Z2404B

The Agilent/Keysight Z2404B is a C-Size VXIbus module that delivers 64 isolated digital input channels for high-density signal acquisition and edge detection. Configurable as four 16-bit ports, It has interrupt-driven monitoring with programmable debounce, edge selectivity, and flexible input thresholding from 5 V to 48 V. Each channel withstands 115 Vac RMS or 115 Vdc ground potential difference, making it suitable for industrial and laboratory test applications requiring galvanic isolation and reliable state capture.

Technical Specifications

• Module Type: Register-based VXIbus, C-Size, 1-Slot form factor


• Digital Input Channels: 64 isolated channels organized as four 16-bit ports


• Channel Isolation: Full electrical isolation between channels, power, and ground (115 Vac RMS or 115 Vdc withstand voltage per channel)


• Input Threshold: Jumper-selectable logic levels from 5 V to 48 V


• Interrupts: 64 available, maskable and edge-selectable (positive, negative, or both polarities)


• Debounce: Time-programmable with two independent clock sources (ports 0–1 and ports 2–3)


• Internal Clock: 1.0 MHz sample clock; external capture clock supported


• Pull-up Supply: On-board 5 V

Key Features

• Simultaneous transition monitoring and edge event detection across all 64 channels


• Level sensing with programmable magnitude and duty cycle parameters


• Dual-clock debounce architecture for independent port group control


• Channels function as edge detect inputs and/or data capture inputs

Typical Applications

• Electronics test and measurement in development and manufacturing environments


• Quality assurance workflows requiring multi-channel state monitoring


• Research applications demanding isolated, high-channel-count digital acquisition

Compatibility & Integration Operates within C-Size VXIbus mainframes via standard VXIbus interface.