Keysight (Agilent) Technologies N7751A Optical Test Equipment


Optical Attenuator (1 Channel) with Optical Power Meter (2 Channel)

Optical Attenuator with 2x Optical Power Meter Ch.
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Optical Attenuator (1 Channel) with Optical Power
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  • Straight Contact Connectors
  • Calibration Assurance Plan - Return to Keysight - 5 years
  • Warranty Assurance Plan - Return to Keysight - 5 years
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The Agilent N7751A 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 N7751A attenuator is an extension to Agilent’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.
  • Active power control to keep output power constant
  • The power meters support convenient power offset calibration of the attenuators.
  • 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

Key Specification

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

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

N7751A OPTIONS (19)
8121-1226 Power Cord Cable Assembly - Europe and South Korea C13, 10A, 250V
8164B-900 Power cord - United Kingdom
8164B-901 Power cord - Australia and New Zealand
8164B-902 Power cord - Continental Europe
8164B-903 Power cord - United States and Canada (120V)
8164B-906 Power cord - Switzerland
8164B-912 Power cord - Denmark
8164B-917 Power cord - India
8164B-918 Power cord - Japan
8164B-919 Power cord - Israel
8164B-920 Power cord - Argentina
8164B-922 Power cord - China
8164B-927 Power cord - Thailand
N7744A-100 Rack Mount Kit for 1 or 2 Units
N7751A-021 Straight Contact Connectors
N7751A-022 Angled Contact Connectors
R-50C-011-3 Calibration Assurance Plan - Return to Keysight - 3 years
R-50C-011-5 Calibration Assurance Plan - Return to Keysight - 5 years
R-51B-001-5Z Warranty Assurance Plan - Return to Keysight - 5 years
N7751A PRODUCT Q & A  
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