Agilent/Keysight 4951A

The Agilent/Keysight 4951A is a versatile protocol analyzer used for monitoring and analyzing data communication protocols. It provides real-time data capture, protocol decoding, and performance analysis capabilities. Ideal for troubleshooting and optimizing network performance.

Model
HP 4951A
Calibration
Available on request
Price
$1,250
RFQ ref
4951A
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This unit

The Agilent/Keysight 4951A is a portable protocol analyzer engineered for field service, installation, and maintenance of data communication systems. It delivers real-time and post-processing data analysis, protocol decoding, network component simulation, and comprehensive troubleshooting capabilities in a compact form factor. The unit supports multiple protocol standards and provides automated line parameter detection, making it essential for diagnosing and resolving network operational issues across diverse communication environments.


Technical Specifications



  • Data Transmission Rates: 50 to 19.2 kbps

  • Memory: 32 Kbytes of nonvolatile memory for data, timing, and lead status; additional nonvolatile memory for test setups, monitor programs, and simulate programs

  • Optional Mass Storage: Cassette tape (Option 001) provides 512 Kbytes for long-term data and program storage

  • Supported Protocols: Async, BSC (Bisynchronous), SDLC (NRZI), HDLC, X.25, SNA, DDCMP, IPARS, character-oriented protocols (ASCII, Baudot, IBM EBCDIC), and user-defined protocols

  • Dimensions: 11.2 cm (H) × 25.9 cm (W) × 28.6 cm (D) / 4.4 in. (H) × 10.2 in. (W) × 11.3 in. (D)


Key Features



  • Auto-configuration automatically determines line parameters and initiates data monitoring

  • Six software-defined keys (softkeys) provide rapid access to troubleshooting functions

  • Bit error rate testing (BERT) assesses line quality and link-level performance

  • Asynchronous terminal emulation and 3270 equipment support

  • Remote data and program transfer via dedicated RS-232C/V.24 port

  • External video viewing through standard RS-170 video port

  • PC utility compatibility for remote control and offline data analysis


Typical Applications



  • Field installation and commissioning of data communication networks

  • Network maintenance and operational diagnostics

  • Protocol troubleshooting and performance verification

  • 3270 equipment installation and support

  • Link-level performance analysis


Compatibility & Integration The 4951A integrates with PC-based utilities for enhanced analysis workflows and supports remote operations through standard serial and video interfaces.

HP 4951A — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the HP 4951A. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

HP 4951A price

This HP 4951A is listed at $1,250. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

HP 4951A calibration cost

NIST-traceable calibration for the HP 4951A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →