The Agilent/Keysight 44789A is a serial interface module that extends connectivity and control capabilities for data acquisition and test systems. Designed as a dedicated expansion module for the Agilent 3852A Data Acquisition System, it provides dual communication pathways: a serial programming port for direct system control and a control port supporting industry-standard RS-232 and RS-422 protocols. This architecture enables engineers to integrate external devices and instruments into multi-instrument test environments with minimal configuration overhead.
Technical Specifications
The module ships at 5 lbs and connects directly to the 3852A platform through its standard module interface.
– Key Features
• Serial programming port for direct host communication
• Dual-protocol control port supporting RS-232 and RS-422 devices
• Purpose-built for 3852A integration without external adapters
• Dedicated programming interface separate from control channels
– Typical Applications
• Multi-device test automation within 3852A systems
• Integration of external serial instruments and controllers
• Data logging systems requiring remote device management
• Laboratory measurement setups combining legacy and modern equipment
– Compatibility & Integration
The 44789A is engineered exclusively for the Agilent 3852A Data Acquisition System. It accepts both RS-232 and RS-422 control signals, allowing connection to a broad range of serial-capable instrumentation. The dual-port design isolates programming traffic from device control, reducing communication conflicts in complex measurement chains.
