Keysight / Agilent / HP 3235X Processor Card
The Keysight 3235X Processor Card is a replacement processor card.
- Model
- Keysight / Agilent / HP 3235X
- Calibration
- Available on request
- Price
- $850
- Status
- In stock
- RFQ ref
- 3235X
This unit
The Keysight / Agilent / HP 3235X Processor Card is a replacement component that is the control and logic hub for the HP 3235 Switch/Test Unit. This processor card manages instrument interfacing, signal routing, and system coordination between test instrumentation and devices under test within modular switching and measurement systems.
Technical Specifications The 3235X operates within a frame-based architecture featuring a ten-slot plug-in module cage per mainframe or extender. Four backplane analog buses provide isolated signal routing between plug-in modules, both within individual frames and across connected extender frames. Two trigger buses support digital trigger signal transfer across the system. The processor card enables HP-IR compatibility, allowing control from multiple computer platforms.
Key Features
Ten-slot module cage architecture supports any plug-in configuration per frame
Four isolated backplane analog buses for signal routing flexibility
Two trigger buses for inter-module and inter-frame digital signaling
HP-IR interface support for remote programming and control
Supports both switching and instrument plug-in modules
Expands to 80 total slots with up to seven HP 3235E Extender Frames
Compatible with Quick Interconnect Fixtures for rapid cabling reconfiguration
Typical Applications The processor card enables automated test systems requiring high-integrity signal switching, multi-slot module management, and coordinated measurement across distributed instrument assemblies. It coordinates mixed switching and measurement module operations within laboratory test benches and manufacturing test stations.
Compatibility & Integration The 3235X integrates directly into the HP 3235 Switch/Test Unit mainframe and supports connection with HP 3235E Extender Frames for system expansion. Compatible plug-in modules include the HP 3235Y HPIB Interface Module, HP 3235Z Analog Bus Access Module, HP 34520 6.5 Digit Multimeter Module, HP 34522 Digital I/O Module, and HP 34550A Switch Unit Fluorescent Display Module. The Quick Interconnect Fixture (HP 34591A) works with the processor card to streamline external cabling management.
Keysight / Agilent / HP 3235X — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keysight / Agilent / HP 3235X. Calibration covers analog input channel accuracy and offset at all gain settings, analog output accuracy, digital I/O logic threshold verification, sample rate and timing accuracy, and trigger and synchronization bus functional verification. NI CompactRIO and PXI chassis also undergo backplane trigger line integrity check.. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Keysight / Agilent / HP 3235X faults: power supply failure (cRIO-9073/9074), C-series slot connector wear, PXI chassis fan failure, GPIB interface failure on VXI controllers, BIOS/EEPROM corruption. NI CompactRIO most common faults are power supply failure on older cRIO-9073/9074 chassis and C-series module slot connector wear from repeated hot-swap cycles. PXI chassis fan failure is the most common wear item — chassis fans are field-replaceable. VXI embedded controllers most commonly develop EEPROM corruption and GPIB interface failure.
Keysight / Agilent / HP 3235X price
This Keysight / Agilent / HP 3235X is listed at $850. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keysight / Agilent / HP 3235X calibration cost
NIST-traceable calibration for the Keysight / Agilent / HP 3235X is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers analog input channel accuracy and offset at all gain settings, analog output accuracy, digital I/O logic threshold verification, sample rate and timing accuracy, and trigger and synchronization bus functional verification. NI CompactRIO and PXI chassis also undergo backplane trigger line integrity check.. Turnaround is 1 to 3 business days after receipt. See full calibration details →
