OLS1 LED Light Source


  • Hand-held, rugged, lightweight
  • 850 and 1300 nm LED (multimode) light source
  • 660 and 850 nm LED light source available
  • Gigabit Ethernet (GBE) ready


  • Certify 50 or 62.5 µm fiber links to TIA/EIA Standards
  • Certify Multimode fiber links for Gigabit Ethernet (GBE)
  • Test Ethernet, Token Ring, and FDDI fiber networks
  • Use 1300 nm port to test up to 10 km single-mode fiber links



Gyártói oldal - AFL link

Cost effective – LED Source

NOYES OLS1 from AFL is two port multimode LED source for testing multimode fiber links.  Packaged in a rugged hand-held case The OLS1 is designed for technicians on the go.  The LED output is stabilized to ensure accurate test results per current TIA/EIA requirements.

Low Training Requirements: The OLS1 is easy to operate with only a [Wavelength/ Power] switch, which selects optical wavelengths or disables unit.

LED indicators [Active Output], [Battery], and [External Power] identify the currently enabled output port, battery level, and external power presence.

Weighing only 0.65 lb, the OLS1 is compact and convenient for field use. The OLS1 from AFL operates over 60 hours from a typical 9V alkaline battery. An AC adapter is optional for extended use.

50 and 62.5 µm fiber mandrels Included

Mandrels condition test cable for use in certifying both 50 and 62.5 µm fiber links for current and planned high bit rate applications including Gigabit Ethernet and 10 Gigabit Ethernet.  Mandrels apply to launch jumpers is seconds without tools and ensure loss measurements comply with TIA/EIA-568-B standard.

The OLS 1 light source is fully N.I.S.T. traceable.

Key Specifications

  • Wavelengths: 660 nm (Red) and 850 nm
  • Output Power: -10 dBm into 1000 micron fiber / -20 dBm into 62.5 µm multimode


  • Wavelengths: 850 and 1300 nm
  • Output Power: -20 dBm into 62.5 µm multimode

OLS1 Models

  • Output Connectors: ST 
  • Battery: 9V Alkaline
OLS1 Models
660nm (visible red) and 850 nm LED Source.  The NOYES OLS1-1C can test 1000μm plastic optical fiber (POF) and trace fibers with the visible 660 nm output.
Operates at 850 and 1300 nm for use on Ethernet, Token Ring, and FDDI. The 1300 nm output can also be used to test short distance (up to 10 km) single-mode fiber links.

AC Adapter
90-264 VAC to 9 VDC
Prepaid Calibration Plans
2 Year Cal Plan for OLS1-1
2 Year Cal Plan for OLS1-2
2 Year Cal Plus Plan for OLS1-1
2 Year Cal Plus Plan for OLS1-2
For details see the Prepaid Calibrations and Calibration Plus plans product page