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577XL 850nm LED Source with M90

577XL 850nm LED Source with M90 from Greenlee with

  • 850nm wavelength
  • Stable calibrated output
  • Continuous wave and modulated output
  • Universal connector interface
  • User selectable auto shut-off


The instrument family consists of individual instruments (optical power meters, 850/1300nm LED sources, 1310/1550nm Laser sources, Visual Fault Locator) and complete Insertion Loss Test Sets. Designed to accurately measure optical power levels and link loss on multimode and single mode cabling networks. These full feature general purpose fiber optic instruments are easy to operate & economically priced to outfit all technicians performing fiber optic installation and maintenance.

Product Specification
Calibration Wavelengths 850nm, 1300nm, 1310nm and 1550nm
Power Range +3 dBm to -60 dBm
Accuracy ±0.25dB
Linearity at: +3dBm to -3dBm ±0.5dB
-3dBm to -50dBm ±0.05dB
50dBm to -60dBm ±0.5dB
Resolution 0.01dB
Power Requirements Two AA size 1.5V batteries (approx. 100 hours continuous operation)
Connector Interface FC, SC or ST
    • Easy to use - three buttons control all functions
    • Long battery life
    • Loss measurements in (dB); power measurements in (dBm)
    • 0.01dB measurement resolution
    • Snap-on connector interface adapts to FC, SC, and ST connectors.
    • User-selectable auto shut-off
    • Rugged and splash-proof
    • Economically priced
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January 01 1970 05:30:00
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