Keysight / Agilent / HP 34522 Digital I/O Module
The Keysight 34522 Digital I/O Module is a plug-in module designed for use with Keysight data acquisition systems. It provides digital input and output channels for interfacing with external devices and controlling various functions within the system. This module enhances the versatility of the data acquisition system by enabling integration with a wide range of digital devices and processes.
- Model
- Keysight / Agilent / HP 34522
- Calibration
- Available on request
- Price
- $650
- Status
- In stock
- RFQ ref
- 34522
This unit
The Keysight 34522 Digital I/O Module is a plug-in expansion module that adds digital input/output capability to compatible Keysight data acquisition systems. It has 32 bi-directional TTL-compatible data lines, 8 edge-triggered interrupt lines, and 16 high-power FET outputs for controlling external devices. The module supports read/write rates exceeding 40 kHz and integrates into 34970A and 34972A mainframes.
Technical Specifications
Digital Data Lines: 32 bi-directional TTL-compatible lines
Port Configuration: Four independent 8-bit ports with dedicated handshake lines; ports can operate individually or combine for 16-bit or 32-bit parallel transfers
Interrupt Capability: 8 edge-triggered interrupt lines for external event signaling
High-Power Outputs: 16 FET outputs for driving higher-power external loads
Data Rate: Read/write rate exceeding 40 kHz
Physical Weight: Approximately 2 lbs
Key Features
TTL-level logic on all 32 data lines ensures direct compatibility with standard digital devices
Flexible port architecture accommodates both narrow (8-bit) and wide (16/32-bit) parallel data operations
Edge-triggered interrupt structure supports efficient external event handling
High-power FET output stage eliminates the need for external driver stages when interfacing with industrial loads
Compact plug-in form factor minimizes mainframe footprint
Typical Applications This module suits applications requiring parallel digital communication, such as equipment control, sensor interface bridging, and event-driven data acquisition workflows where TTL signaling is appropriate.
Compatibility & Integration The 34522 installs directly into Keysight 34970A and 34972A Data Acquisition/Switch Unit mainframes. Its modular design allows mixed installations with other plug-in modules within the same chassis.
Keysight / Agilent / HP 34522 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keysight / Agilent / HP 34522. Calibration covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Keysight / Agilent / HP 34522 faults: ESD-damaged input protection, failed driver ICs, connector pin damage. Most failures involve ESD-damaged input protection circuitry, failed logic driver ICs, or mechanical connector pin damage. Board-level component replacement is standard practice.
Keysight / Agilent / HP 34522 price
This Keysight / Agilent / HP 34522 is listed at $650. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keysight / Agilent / HP 34522 calibration cost
NIST-traceable calibration for the Keysight / Agilent / HP 34522 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 per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
