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N1231A PCI Three-Axis Laser Board

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Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications


  • Platform and size: PC-PCI, 98 x 312 mm
  • Number of Axes per Board: 3
  • Resolution Extension: x512
  • External Sample and Data Hold Inputs: 0 + 3

Operation with Plane Mirror Optics

  • Resolution: 0.31 nm
  • Maximum Velocity (also limited by laser head): 2800 mm/sec


  • Position Data Update Rate: 20 MHz
  • Asynchronous Data Hold Uncertainty: ± 25 ns (relative to OCLK)
  • Synchronous Data Hold Uncertainty: ± 1 ns (relative to ICLK)

Special Features

  • Simple programming API (Windows NT4/2000/XP)
  • Direct Interface to PMAC/UMAC Servos systems from Delta Tau


The Keysight N1231A PCI Three-Axis Laser Board is a register based PCI bus board that implements three axes of laser measurement for position monitoring and closed-loop servo control. The hardware outputs, optimized for connection to a DeltaTau PMAC servo control system, provide parallel digital position data at rates up to 4MHz. The same position data along with velocity data is available over the PCI bus at rates up to 100kHz (3 axes of position and velocity) or 200kHz (position or velocity only).


  • Three axes of laser measurement on one board
  • Simple programming API (Windows NT4/2000/XP)

  • 0.6 nm (lambda/1024) using Linear or Single Beam interferometers
  • PCI Compliant
  • Size: 98 x 312 mm