The Keysight 34950T Terminal Block is a detachable accessory that provides screw-type termination for discrete wiring connections to the Keysight 34950A 64-Bit Digital I/O module. It enables direct integration of digital I/O signals into test systems without requiring soldered connections or custom cabling solutions.
Technical Specifications
• Compatibility: Keysight 34950A and L4450A 64-Bit Digital I/O modules
• Connection Type: Screw-type terminal block (detachable)
• Wire Size Support: Up to 20 AWG (applications with fewer than 100 connections); up to 24 AWG (applications with more than 100 connections)
• Module Interface: Connects via two 78-pin D-sub female connectors on the 34950A using appropriate D-sub cabling (e.g., Keysight Y1137A or Y1138A)
– Key Features
• Discrete wiring termination eliminates the need for custom connector assemblies
• Field-replaceable design for system reconfiguration and maintenance
• Supports both 20 AWG and 24 AWG wire gauges depending on connection density
• Direct interface to 64 bidirectional digital I/O bits organized into eight 8-bit channels
• Compatible with programmable channel polarity and adjustable thresholds (0 V to 5 V)
• Supports up to 24 mA current sink/source per channel
– Typical Applications
• Discrete digital signal routing in automated test equipment (ATE) systems
• Laboratory bench integration where direct wiring flexibility is required
• System commissioning and field installation of digital I/O modules
• Applications requiring frequent reconfiguration of digital signal paths
– Compatibility & Integration
The 34950T terminal block integrates with the 34950A Digital I/O module within the Keysight 34980A Multifunction Switch/Measure Unit mainframe. Connection requires appropriate D-sub cabling between the terminal block and the module’s dual 78-pin D-sub connectors. The 34950A module provides 64 programmable digital I/O lines with integrated memory for pattern simulation and capture up to 10 MHz bit pattern rate, dual 10 MHz counter/totalizer channels, and programmable clock output from 10 Hz to 20 MHz.
