MOT-500 Mini OTDR series

  • Integrated design, smart and rugged
  • IP65 protection level, outdoor enhanced
  • 7-inch anti-reflection LCD screen
  • PON online test module (1625 nm) is optional
  • MMF test module (850/1300 nm) is optional
  • Support multi-language display and input


MOT-500 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 installed in cities and countryside’s, the measurement of optical network becomes short and disperses; MOT-500 is specially designed for that kind of application. It’s economic, having outstanding performance. MOT-500 is 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 MOT-500 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 troubleshooting, MOT-500 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 (1625 nm) is optional
  • MMF test module (850/1300 nm) is optional
  • Support multi-language display and input


Ready for all kinds of environment.
MOT-500 series OTDR is specially designed for tough outdoor jobs. IP65 protection level, lightweight, easy operation, low-reflection LCD and more than 12 hours working period make it perfect in field testing. Meanwhile, optional PCB board with water-proof coating helps MOT-500 series OTDR get better protection performance.

What you need is all-in-one!
MOT-500 series OTDR is a highly integrated platform that features with four module slots, with a large 7-inch color screen (with a touchscreen option), a high-capacity Lithium-Ion battery, an optional microscope (through universal serial bus [USB] port), and built-in optical test functions, such as PON test module, visual fault locator (VFL), optional power meter and laser source, making it qualified in the installation, turn-up, and maintenance of FTTx/Access optical networks.

Main functions Multimode OTDR
In addition to standard single mode 1310/1550 nm, MOT-500 series OTDR supports multimode 850/1300 nm test mode for option to analyze multimode fiber network.

VFL (visual fault locator)
The VFL, available as a standard module in MOT-500 series OTDR, offers built-in 650 nm visual fault location on a FC/UPC connector.

MOT-500 series OTDR uses 1625nm wavelength to scan and analyze the access point and proceed online testing with optical filter, and will not disturb the service.

PM (power meter)
MOT-500 series OTDR comes with optional built-in power meter that let technicians easily verify the presence of a signal.

LS (laser source)
MOT-500 series OTDR comes with optional built-in laser source through OTDR1 Port that let technicians easily verify the total loss of the local network with a power meter.

FM (fiber microscope)
The optional fiber inspection probe facilitates the inspection before the connection. MOT-500 series OTDR offers this capability through a USB port connection, which allows quick and easy inspection of connector end faces for contamination and also enables it capture and store the image.


  1. Menu selector button
  2. Navigate button
  3. AVG test button
  4. RT test button
  5. Test setup button
  6. File management button
  7. Power switch
  8. Charging port
  1. USB (A type) port
  2. RJ-45 port
  3. USB (B-type port
  4. VFL port
  5. OTDR1 port
  6. OTDR2 port (optional)
  7. PM port (optional)

Humanized Test Interface

MOT-500 series OTDR could display Splice loss, Connector loss, Fiber attenuation, Reflection of points, Link optical return loss and distance to fiber events etc. With test information in a smart way, user could get detailed information immediately. Simplified display style and structured menus help effective in reducing the time of study.

FTTH test within PON networks
MOT-500 series OTDR’s models T43F and 31-49-55/62, are dedicated to the testing of PON network maintenance and troubleshooting without service disruption.

Last mile master
MOT-500 series OTDR could easily test through 1×32 PLC splitter in PON test (Model: MOT-500-T43F).

Fiber Microscope
Microscope is optional for MOT-500 series OTDR. 400x amplification and variety of accessories ensure perfect terminal condition before test.

The essential first step
Taking time to properly inspect connector end faces can prevent a slew of problems down the lines, saving you time, money and headaches.

Result transfer
Check test results on PC or PDA through USB; 4 GB large internal memory space could store more than 40,000 groups of results. Link in line

  • Download reference traces and settings from database
  • Send measurement results via email
  • Ask for remote help

Data Manager
Use Data Manager to elaborate and print out result files on upper computer within a few steps.
High Compatibility Support:

  • Windows 7 (32/64 bit system)
  • Windows 10 (32/64 bit system)
  • Microsoft Office Excel 2007
  • Microsoft Office Excel 2010
  • Microsoft Office Excel 2013

Delicate Report
-Simplified display style easy to read, support multi-result printing.


Dimension 253×168×73.6 mm
1.5 kg (battery included)
Display 7 inch TFT-LCD with LED backlight (touch screen function is optional)
Interface 1×RJ45 port, 3×USB port (USB 2.0, Type A USB×2, Type B USB×1)
Power Supply 10 V DC, 100 to 240 V AC, 50-60 Hz
Battery 7.4 V DC, 4.4 Ah lithium battery (with air traffic certification) Operating time: 12 hours1, Telcordia GR-196-CORE
Charging time: <4 hours (power off)
Power Saving Backlight off: Disable/1 to 99 minutes
Auto shutdown: Disable/1 to 99 minutes
Data Storage Internal memory: 4 GB (about 40,000 groups of curves)
Language User selectable: English, Czech, German, Spanish, Russian, Portuguese, French, Turkish, Italian, Hungary, Arabic
On request: Slovenian, Serbian, Polish, …
Environmental Conditions Operating temperature and humidity:   -10℃ to +50℃
≤95 % (non-condensation)
Storage temperature and humidity:    -20℃ to +75℃
≤95% (non-condensation)
Proof: IP65 (IEC60529)
Accessories Standard: Main unit, power adapter, Lithium battery, FC adapter, USB cord, User guide, CD disk, carrying case
Optional: SC/ST/LC adapter, Bare fiber adapter

Technical parameter

Type2 Testing Wavelength (MM: ±20 nm, SM: ±10 nm) Dynamic Range (dB)3 Event/Attenuation Dead-zone (m)4
MOT-500-MD21 850/1300






MOT-500-D45 1310/1550 45/43 2/14
MOT-500-T43F 1310/1550/1625 43/41/41 2/14
MOT-500-31-49-55/62 1310/1490/1550/1625 43/38/41/41 2/14
MOT-500-31-49-55/62N 1310/1490/1550/1625 45/38/43/43 2/14


Test parameter

Pulse Width Single mode: 3 ns, 5 ns, 10 ns, 20 ns, 50 ns, 100 ns, 200 ns, 500 ns, 1 μs, 2 μs, 5 μs, 10 μs, 20 μs
Multimode: 3 ns, 5 ns, 10 ns, 20 ns, 50 ns, 100 ns, 200 ns, 500 ns, 1 μs, 2 μs
Testing Distance Single mode: 100 m, 500 m, 2 km, 5 km, 10 km, 20 km, 40 km, 80 km, 120 km, 160 km, 240 km
Multimode: 500 m, 2 km, 5 km, 10 km, 20 km, 40 km
Sampling Resolution Minimum 5 cm
Sampling Point Maximum 128,000 points
Linearity ≤0.05 dB/dB
Scale Indication X axis: 4 -70 m/div, Y axis: Minimum 0.09 dB/div
Distance Resolution 0.01 m
Distance Accuracy ± (1 m+measuring distance×3×10-5+sampling resolution) (excluding IOR uncertainty)
Reflectance Accuracy Single mode: ±2 dB, multi-mode: ±4 dB
IOR Setting 1.4000-1.7000, 0.0001 step
Units km, miles, feet
OTDR Trace Format Telcordia universal, SOR, issue 2 (SR-4731)
OTDR: User selectable automatic or manual set-up
Testing Modes Visual fault locator: Visible red light for fiber identification and troubleshooting Light source: Stabilized Light Source (CW, 270 Hz, 1 kHz, 2 kHz output)
Field microscope probe
Fiber Event Analysis -Reflective and non-reflective events: 0.01 to 1.99 dB (0.01 dB steps)
-Reflective: 0.01 to 32 dB (0.01 dB steps)
-Fiber end/break: 3 to 20 dB (1 dB steps)
Other Functions Real time sweep: 1 Hz
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):

Wavelength (±20nm) 650 nm
Power 10 mW, CLASS III B
Range 12 km
Connector FC/UPC
Launching Mode CW/2 Hz

PM Module (Power Meter, as optional function):

Wavelength Range (±20 nm) 800 to 1700 nm
Working wavelength 850/1300/1310/1490/1550/1625/1650 nm
Test Range PM: -65 to+5 dBm (standard); PMH: -40 to +23 dBm (optional)
Resolution 0.01 dB
Accuracy ±0.35 dB, ±1 nW
Modulation Identification 270/1 k/2 kHz, P input ≥-40 dBm
Connector FC/UPC

LS Module (Laser Source, as optional function):

Working Wavelength (±20nm) 1310/1550/1625 nm5
Output Power Adjustable -25 to 0 dBm
Accuracy ±0.5 dB
Connector FC/UPC

FM Module (Fiber Microscope, as optional function):

Magnification 400X
Resolution 1.0 µm
View of Field 0.40×0.31 mm
Storage/working Condition -18℃ to 35℃
Dimension 235×95×30 mm
Sensor 1/3 inch 2 million of pixel
Weight 150 g
USB 1.1/2.0
Adapter6 SC/PC (SC/PC adapter)
FC/PC (FC/PC adapter)
LC-PC-F (For LC/PC adapter)
2.5 PC-M (for 2.5 mm connector: SC/PC, FC/PC, ST/PC)

1) Typical, backlight off, sweeping halted at 25°C, 12 hours typical continuous testing.
2) Model T43F are integrated with optical filter, which allow them to test PON network online (by using 1625 nm 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 3 ns; attenuation dead zone is measured with pulse width of 5ns.

5) 1310/1550 nm laser source uses OTDR1 port, and 1625 nm or 850/1300 nm uses OTDR2 port.
6) For more adapters, please contact us.