The Agilent/Keysight 34934A is a 32-channel isolated digital I/O module for data acquisition and control systems. It delivers individually isolated digital input and output channels with 500 VDC working voltage isolation between I/O and chassis ground, protecting connected systems from voltage spikes and ground loops. The module accepts logic inputs from 0 V to 5 V and provides sinking output current up to 30 mA per channel with less than 0.5 V ON voltage drop at maximum load. Input and output switching speeds are both less than 1 ms typical. The 34934A integrates into Keysight/Agilent 34970A and 34972A benchtop units, and M9010A/M9019A AXIe chassis via rear connector, drawing 500 mA at +5 VDC and 100 mA at +3.3 VDC maximum. It interfaces through a 50-pin D-sub male connector for digital I/O signals and is compatible with BenchVue, BenchLink Data Logger, and standard development environments including LabVIEW, C++, and MATLAB.
Technical Specifications
• Digital I/O Channels: 32
• Isolation Voltage (I/O to Chassis): 500 VDC working voltage
• Input Voltage Range: 0 V to 5 V (logic low); 2 V to 5 V (logic high) typical
• Input Current: < 1 mA
• Maximum Input Voltage: 5 VDC
• Output Configuration: Sinking current up to 30 mA per channel
• Output ON Voltage Drop: < 0.5 V at 30 mA
• Maximum Output Voltage: 5 VDC
• Input Switching Speed: < 1 ms typical
• Output Switching Speed: < 1 ms typical
• Power Consumption: 500 mA @ +5 VDC; 100 mA @ +3.3 VDC maximum
• Connector Type: 50-pin D-sub male
• Weight: Approximately 100 g (0.22 lbs)
– Key Features
• Individual channel isolation at 500 VDC protects host systems and measurement integrity
• Fast input and output response times support dynamic control applications
• Low input current loading minimizes signal source burden
• Low output voltage drop enables reliable drive of downstream logic
– Typical Applications
• Industrial automation: machine control, process monitoring, status indication
• Test and measurement: digital stimulus generation and response acquisition
• Research systems requiring isolated multi-channel digital I/O
– Compatibility & Integration
Supported Chassis: Agilent/Keysight 34970A, 34972A; Keysight M9010A (10-slot PCIe Gen 2), M9019A (18-slot PCIe Gen 4)
Software: BenchVue, BenchLink Data Logger, LabVIEW, C++, MATLAB, and third-party 349xx module-compatible environments
