Noyes Ofl280 Flextester




OFL280-100 provides the best balance of functions and value for many users.  Dual-wavelength testing at 1310 and 1550 nm is normally sufficient to certify point-to-point or FTTx (PON) networks and detect macro bends.

OFL280-100 Main Features:

  • Compatible with all Noyes optical power meters and laser sources (OPM/OLS), including tone and wave ID features
  • Compatible with Noyes optical fiber identifiers (OFI)
  • Integrated hi-power optical power meter
  • Integrated visual fault locator (red laser)
  • 1310 nm ヨ OTDR, PON OTDR, laser source (CW, wave ID, tone)
  • 1550 nm ヨ OTDR, PON OTDR, laser source (CW, wave ID, tone)
OFL280-100 Fiber Testing Applications:

Point-to-point cable construction and troubleshooting
Fiber loss, splice/connection loss and reflectance, fault-location

FTTx PON construction
Fiber loss, splitter loss and reflectance, splice or connection loss and reflectance, fault-location 1

FTTx customer fiber troubleshooting – dark fibers (hard faults)
Locate cable cuts, open splices, and bad connections


  • Rugged, handheld and light weight
  • Standard OTDR, PON OTDR, live fiber OTDR, and FTTx PON meter all from the same test port
  • 0.8 m event dead zone, 3.5 m attenuation dead zone
  • 34 dB dynamic range
  • Fast Real Time OTDR mode
  • Internal storage (>1000 OTDR traces in standard .SOR format)
  • High-contrast display is clear and bright in any lighting condition, including direct sunlight
  • Transfer test results to a PC via USB
  • 10-hour operation, fast charge, Li-Ion battery
  • Short power-on time (< 5 sec)
  • Easy to use and learn


  • PON OTDR – FTTx PON construction certification
  • Live Fiber OTDR – FTTx service turn-up and troubleshooting
  • Full Auto OTDR – Normal (point-to point) fiber cableconstruction testing and fault location
  • Expert OTDR – Full function OTDR for experienced users
  • Real Time OTDR – Fault location, splice verification, first connector checker
  • End Locator – Quickly locate breaks or measure fiber length
  • Optical Power Meter -Measure optical power or fiber loss
  • Laser Source – Measure end-to-end loss or trace fibers using the tone feature and a Noyes OFI
  • Visual Fault Locator – Red laser for fiber bend/break location and tracing


Emitter Type Laser
Safety Class Class I FDA 21 CFR 1040.10 and 1040.11,
IEC 60825-1: 2007-03
Fiber Type Single-mode
Available Wavelengths 1310/1550 nm
Wavelength Tolerance ±20/±20 nm
Dynamic Range (SNR=1) 34/32 dB
Event Dead Zone 1 0.8 m
Attenuation Dead Zone 2 3.5 m
Pulse Widths 5, 10, 30, 100, 300 ns, 1, 3, 10 µs
Range Settings 250 m to 240 km
Data Points Up to 30,000
Data Point Spacing 5.0 cm (range < 1.5 km),
Range/30,000 (range > 1.5 km)
Group Index of Refraction (GIR) 1.4000 to 1.6000
Distance Uncertainty (m) ± (1 + 0.005% x distance + data point spacing)
Trace File Format Bellcore GR-196 V.1.1
Trace File Storage Medium Internal memory (>1000 traces)
Data Transfer to PC USB cable
PON OTDR Modes FTTx – PON Construction, FTTx – In Service
Standard OTDR Modes Full Auto, Expert, Real Time

Optical Power Meter

Calibrated Wavelengths 1310, 1490, 1550, 1625, 1650 nm
Detector Type InGaAs
Measurement Range +23 to ヨ 50 dBm
Tone Detect Range +3 to -35 dBm
Wavelength ID Range +3 to -35 dBm
Accuracy ± 0.25 dB
Resolution 0.01 dB
Measurement Units dB, dBm or Watts

laser Source

Emitter Type Class I FDA 21 CFR 1040.10 and 1040.11,
IEC 60825-1: 2007-03
Fiber Type Single-mode
Available Wavelengths (nm) 1310, 1550
Wavelength Tolerance ± 20 nm
Spectral Width (FWHM) 2 nm (maximum)
Internal Modulation 1 kHz, 2 kHz, CW
Wavelength ID (one, two, or three wavelengths) Compatible with Noyes Optical Power Meters and Light Sources
Output Power Stability 0.25 dB
Output Power 0 dBm

Visual Fault Locator

Emitter Type Laser
Safety Class Class II FDA 21 CFR 1040.10 and 1040.11,
IEC 60825-1: 2007-03
Wavelength 650 nm
Output Power (nominal) 0.8 mW into single-mode fiber


Size (in boot) 19 x 11.2 x 4.7 cm (7.5 x 4.4 x 1.9 in)
Weight 0.8 kg (1.7 lb)
Operational Temperature -10 to +50°C, 0 to 95% RH (non-condensing)
Storage Temperature -20 to +60°C, 0 to 95% RH (non-condensing)
Power Rechargeable Li-Ion or AC adapter
Battery Life 10 hours, backlight ON, continuous operation
Display LCD, 320 x 240, 3.5 inch (89 mm), color, high-contrast transflective with backlight and AR coating


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