OT700 series OTDR

SM OTDR, MM OTDR, visual fault locator), PON online test, Optical Power Meter, Optical Laser Source, Fiber Microscope, Ready for all kinds of environment.

General Details

This FTTH series Optical Time Domain Reflectometer (OTDR) is an intelligent meter of a new generation for the detection of fiber communications systems. With the popularization of optical network construction in cities and countrysides, the measurement of optical network becomes short and disperse; Tarluz OTDR is specially designed for that kind of application. It’s economic, having outstanding performance.

This OTDR manufactured with patience and carefulness, following the national standards to combine the rich experience and modern technology, subject to stringent mechanical, electronic and optical testing and quality assurance; in the other way, the new design makes OT700 series more smart and compact and multi-purpose.

Whether you want to detect link layer in the construction and installation of optical network or proceed efficient maintenance and trouble shooting, OT700 Series can be your best assistant.

  • Integrated design, smart and rugged
  • IP65 protection level, outdoor enhanced
  • 7-inch anti-reflection LCD screen
  • PON online test module (1625nm) is optional
  • MMF test module (850/1300nm) is optional
  • Support multi-language display and input
OTDR Module
Pulse WidthSingle mode: 3ns, 5ns, 10ns, 20ns, 50ns, 100ns, 200ns, 500ns, 1us, 2us, 5us, 10us, 20us
Multi-mode: 3ns, 5ns, 10ns, 20ns, 50ns, 100ns, 200ns, 500ns, 1us, 2us
Testing DistanceSingle mode: 100m, 500m, 2km, 5km, 10km, 20km, 40km, 80km, 120km, 160km, 240km
Multi-mode: 500m, 2km, 5km, 10km, 20km, 40km
Sampling ResolutionMin. 5cm
Sampling PointMax. 128,000 points
scale IndicationX axis: 4m~70m/div
Y axis: Min. 0.09dB/div
Distance Resolution0.01m
Distance Accuracy±(1m+measuring distance x 3 x 10-5 + sampling resolution) (excluding IOR uncertainty)
Reflectance AccuracySingle mode: ±2dB
Multimode: ±4dB
IOR Setting1.4000 ~ 1.7000, 0.0001 step
UnitsKM, miles, feet
OTDR Trace FormatTelcordia universal, SOR, issue 2 (SR-4731)
Testing ModesVisual fault locator: Visible red light for fiber identification and troubleshooting
Light source: Stabilized Light Source (CW, 270Hz, 1kHz, 2kHz output)
Field microscope probe
Fiber Event Analysis-Reflective and non-reflective events: 0.01 to 1.99dB (0.01dB steps)
-Reflective: 0.01 to 32dB (0.01dB steps)
-Fiber end/break: 3 to 20dB (1dB steps)
Other FunctionsReal time sweep: 1Hz
Averaging modes: Timed (1 to 3600 sec.)
Live Fiber detect: Verifies presence communication light in optical fiber
Trace overlay and comparison
VFL Module (Visual Fault Locator, as standard function):
Wavelengths650nm (±20nm)
Power10mw, CLASSIII B
Measurement Range12km
Launching ModeCW/2Hz
OPM Module (Optical Power Meter, as optional function):
Wavelength Range800 ~ 1700nm (±20nm)
Calibrated Wavelength850/1300/1310/1490/1550/1625/1650nm
Test RangeType A: -65~+5dBm (standard);
Type B: -40 ~ +23dBm (optional)
Modulation Identification270/1k/2kHz
OLS Module (Optical Laser Source, as optional function):
Working Wavelengths1310/1550/1625nm (±20nm)
Output PowerAdjustable -25 ~ 0dBm
FM Module (Fiber Microscope, as optional function):
View of Field0.40 x 0.31mm
Working Temperature-18℃ ~ 35℃
Dimensions235 x 95 x 30mm
Sensor1/3 inch 2 million of pixel
AdapterSC-PC-F (For SC/PC adapter)
FC-PC-F (For FC/PC adapter)
LC-PC-F (For LC/PC adapter)
2.5PC-M (For 2.5mm connector, SC/PC, FC/PC, ST/PC)
General Specifications
Display7 inch TFT-LCD with LED backlight (touch screen function is optional)
Interface1 x RJ45 port, 3 x USB port (USB 2.0, Type A USB x 2, Type B USB x 1)
Power Supply10VDC, 100VAC to 240VAC, 50~60Hz
Operating time12 hours, Telcordia GR-196-CORE
Battery7.4VDC/4.4Ah lithium battery (with air traffic certification)
Battery Charging Time
Power SavingBacklight off: Disable/1 to 99 minutes
Auto shutdown: Disable/1 to 99 minutes
Data StorageInternal memory: 4GB (about 40,000 groups of curves)
LanguageUser selectable (English, Simplified Chinese, traditional Chinese, French, Korean, Russian, Spanish and Portuguese-contact us for availability of others)
Operating temperature-10℃ ~ +50℃, 95% (non-condensation)
Storage temperature-20℃ ~ +75℃, 95% (non-condensation)
AccessoriesStandard: Main unit, power adapter, Lithium battery, FC adapter, USB cord, User guide, CD disk, carrying case
Optional: SC/ST/LC adapter, Bare fiber adapter
Dimensions253 x 168 x 73.6mm
Weight1.5kg (including batter)


  1. Typical, backlight off, sweeping halted at 25℃, 12 hours typical continuous testing.
  2. Model S2 are integrated with optical filter, which allow them to test PON network online (by using 1625nm wavelength) and will not interrupt the fiber signal.
  3. Dynamic range is measured with maximum pulse width, averaging time is 3 minutes, SNR=1; the level difference between the RMS noise level and the level where near end back-scattering occurs.
  4. Event dead zone is measured with pulse width of 3ns; attenuation dead zone is measured with pulse width of 5ns.
  5. 1310/1550nm laser source uses OTDR1 port, and 1625nm or 850/1300nm uses OTDR2 port.
  • FTTX test with PON networks
  • CATV network testing
  • Access network testing
  • LAN network testing
  • Metro network testing
  • Lab and Factory testing
  • Live fiber troubleshooting
Order Information


A: WavelengthsM: 850/1300nm
S1: 1310/1550nm
S2: 1310/1550/1625m, 1625nm with filter
SM: 850/1300nm, 1310/1550nm
B: Dynamic RangeM: 19/21dB (850/1300nm)
D1: 35/33dB (1310/1550nm)
D2: 43/41dB (1310/1550nm)
D3: 45/43dB (1310/1550nm)
T1: 40/38/38dB (1310/1550/1625nm)
T2: 43/41/41dB (1310/1550/1625nm)
Q1: 19/21, 35/33dB (850/1300nm , 1310/1550nm)
Q2: 19/21, 40/38dB (850/1300nm , 1310/1550nm)
C: Power Meter ModuleA: -65~+5dBm
B: -40 ~ +23dBm
D: Light Source ModuleL: With light source
E: Fiber MicroscopeF: With Microscope
F: Fiber ConnectorSC: SC/UPC
X: customized

Example: OT700-S1D2-SC: 1310/1550nm, 43/41dB, with SC/UPC fiber interface, touch screen.