This is a NetTest 4791 Ni Optical Spectrum AnalyzerModule.This is for use with the CMA4000 or CMA4000i OTDR Mainframes. 

Modes of Operation Graph, table and drift mode
Acuisitions Real time, average, peak hold, and channel drift
Language Capability English

Item has been power on tested and is in working condition. 

Item is sold As-Is. Item sold as shown in picture. 


Optical Spectrum Analyzer (OSA) Specifications

Module 4791 NI
Wavelength Range 1520 - 1570 nm
Wavelength Accuracy ±20 pm (typical)
Resolution Bandwidth <0.05 nm
Power Range +10 to -70 dBm per channel
+20 to -60 dBm per channel
Polarization Dependence <±0.25 db
Channel Table Automatically generated,
 up to 400 channels
Return Loss  <35 db
Cyclic Time  4 seconds maximum
Stability  ±0.2 dB per hour
Power Acuuracy ±0.5 dB (23° C)


Warranty Contact for Warranty Details

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GN NetTest 4791 NI Optical Spectrum Analyzer Module

  • Item ID: 254090
  • Brand: NetTest
  • Model: 4791 NI
  • Availability: In Stock
  • Condition: Used
  • $790.00
  • $592.50

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Tags: NetTest, 4791, Spectrum, Analyzers, Optical, Analyzer, Module