Measurement capability: attenuator

  • settling time: 20 ms attenuation, 100 ms power
  • 0.1 to 1000 dB/s attenuation transition speed (selectable)
  • +23 dBm input power
  • ≤ 1.2 dB insertion loss

Measurement capability: power meter

  • Wavelength range: 1260-1640 nm
  • Power range: -80 to +10 dBm
  • Polarization dependence: <0.01 dB

System capability

  • Two attenuator channels and two power meters in one half-width rack unit
  • Fully compatible with programs developed using the Keysight 8157x and 8156x modular attenuators
  • Includes powerful and user-friendly GUI software
  • Two instrument configurations can be stored and recalled

The Keysight N7752A combines an attenuator with 2 front-panel power meter channels, offering exceptional performance at a low price. The power meters permit measurements from any point in the measurements setup and assist in calibrating power offsets with respect to the attenuator output.

Extension of N77xx-series

The N7752A attenuator is an extension to Keysight's high density N77xx-family that establishes a new standard in space-saving fiberoptic instrumentation.

Features and Benefits

  • Compact instrument combines and integrates multiple functions for setting attenuation and power levels and optical power measurement to reduce CAPEX and floor space.
  • Fast and precise setting of optical power levels with settling times of 100 ms for improved test throughput.
  • The power meters support convenient power offset calibration of the attenuators.
  • Active power control to keep output power constant
  • The multichannel attenuator sets and measures several ports at the same time and saves significant time characterizing multiport and multichannel components and network equipments.
  • The instrument can be controlled via LAN and USB, as well as GPIB for compatibility with existing equipment.
  • An easy-to-use and intuitive graphical user interface software speeds up the integration process.


  • Optical transceiver testing
  • Optical network integration testing



Standard Configurations

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