FHO5000-MD21 SM & MM OTDR with OLS OPM VFL Fiber Link Map 850/1300/1310/1550nm 19/21/35/33dB


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FHO5000 series Optical Time Domain Reflectometer (OTDR) is an intelligent meter of a new generation for the detection of fiber communications systems. The new generation FHO5000 series has higher test performance and product stability. Larger dynamics and optimized deadzone can provide more accurate fiber testing.
FHO5000 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 FHO5000 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, FHO5000 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/1650nm) is optional
  • MMF test module(850/1300nm) is optional
  • Support remote control via LAN
  • Optimized FLM——More intelligent algorithms to characterize the optical fiber line
  • Support multi-language display and input


  • FTTX test with PON networks
  • CATV network testing
  • Access network testing
  • LAN network testing
  • Metro network testing
  • Laband Factory testing
  • Live fiber troubleshooting

Ready for all kinds of environment.
FHO5000 series OTDR is specially designed for tough outdoor jobs. Humanized menu, Light-weight, easy operation, low-reflection LCD and more than 6 hours working period make it perfect in field testing.

What you need is all-in-one!
FHO5000 series OTDR is a highly integrated platform that features with four optical module slots, with a large 7-inch color touch screen, a high-capacity lithium battery, an optional microscope (through universal USB port), and built-in optical test functions, such as PON test module, Fiber link map(FLM), visual fault locator (VFL), optional power meter and laser source, making it qualified in the installation,activation, and maintenance of FTTx/Access/Metropolitan area network/backbone network.

Main functions
Multi-mode OTDR
Besides standard single mode (1310/1550nm), FHO5000 series OTDR supports multi-mode (850/1300m) test mode for option to analyze multi-mode fiber network.

Optimized PON Test Capability
With improved hardware and advanced algorithm, FHO5000 PON series(T40F/T43F/T45F) can easily pass through 1×64 splitter and accurately describe the overall structure of PON network.

FHO5000 PON OTDR for PLC Splitter Testing

In particular, with FLM mode, users can automatically test without complicated settings to obtain the most accurate and intuitively test results. In addition, FLM provides the Pass/Fail function of the PON network, which can intuitively display the failure event in PON network

FHO5000 OTDR with Fiber Link Map Function FHO5000 OTDR with Fiber Link Map Testing

Through the built-in optical cut-off filter, the FHO5000 can realize the testing for PON network activation, online measurement and maintenance.

Multiple Dynamic Range (26dB~45dB)
Long Distance Test Capability (over 200km)
The FHO5000 includes various dynamic test modules from a short-distance access network to a long-distance backbone network, support 45dB dynamic range which can test up to 200km. Even the smallest 26dB can perform 80km optical fiber test.

FHO5000 OTDR with High Dynamic Range

VFL (visual fault locator)
The VFL, available as a standard module in FHO5000 series OTDR, offers built-in 650nm visual fault location on a FC/UPC connector.

PM (optical power meter)
FHO5000 series OTDR comes with optional built-in power meter that let technicians easily verify the presence and the power of a signal.

LS (laser source)
FHO5000 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. The functions of laser source and power meter can work at the same time to verify the link loss performance.

FM (Fiber microscope)
The optional fiber inspection probe facilitates the inspection before the connection. FHO5000 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.

FHO5000 OTDR with Fiber Microscope for Fiber Connector Endface Inspection


FHO5000 OTDR Structure FHO5000 OTDR Stucture



Dimension 253×168×73.5mm

1.5kg (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 10V(dc), 100V(ac) to 240V(ac), 50~60Hz
Battery 7.4V(dc)/4.4Ah lithium battery (with air traffic certification)

Operating time: 6 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: 16GB
Language User selectable (English, Simplified Chinese, traditional Chinese, French, Korean, Russian, Spanish and Portuguese-contact us for availability of others)
Environmental Conditions Operating temperature and humidity: -10℃~+50℃, ≤95% (non-condensation)

Storage temperature and humidity: -20℃~+75℃, ≤95% (non-condensation)

Accessories Standard: Main unit, power adapter, Lithium battery, FC adapter, USB cord, User guide, carrying case

Optional: SC/ST/LC adapter, Bare fiber adapter, Fiber microscope, Launch cable box

Technical parameter

Type Testing Wavelength 

(MM: ±20nm, SM: ±20nm)

Dynamic Range (dB) Event/Attenuation Dead-zone (m)
FHO5000-M21 850/1300 19/21 1.2/8
FHO5000-MD21 850/1300






FHO5000-MD22 850/1300






FHO5000-D26 1310/1550 26/24 0.8/4
FHO5000-D35 1310/1550 35/33 0.8/4
FHO5000-D40 1310/1550 40/38 1/4
FHO5000-D43 1310/1550 43/41 1/5
FHO5000-D45 1310/1550 45/43 0.8/3.6
FHO5000-T26F 1310/1550/1625 26/24/24 0.8/4
FHO5000-T35F 1310/1550/1625 35/33/33 0.8/4
FHO5000-T40F 1310/1550/1625 40/38/38 1/4
FHO5000-T43F 1310/1550/1625 43/41/41 1/5
FHO5000-T45F 1310/1550/1625 45/43/43 0.8/3.6
FHO5000-TC35F 1310/1550/1650 35/33/31 1/5
FHO5000-TP35 1310/1490/1550 35/33/33 0.8/4

Test parameter

Pulse Width Single mode: 3ns, 5ns, 10ns, 20ns, 50ns, 100ns, 200ns, 500ns, 1μs, 2μs, 5μs, 10μs, 20μs

Multi-mode: 3ns, 5ns, 10ns, 20ns, 50ns, 100ns, 200ns, 500ns, 1μs, 2μs

Testing Distance Single mode: 100m, 500m, 2km, 5km, 10km, 20km, 40km, 80km, 120km, 160km, 240km

Multi-mode: 500m, 2km, 5km, 10km, 20km, 40km

Sampling Resolution Minimum 5cm
Sampling Point Maximum 128,000 points
Linearity ≤0.05dB/dB
scale Indication X axis: 4m~70m/div, Y axis: Minimum 0.09dB/div
Distance Resolution 0.01m
Distance Accuracy ±(1m+measuring distance×3×10-5+sampling resolution) (excluding IOR uncertainty)
Reflectance Accuracy Single mode: ±2dB, multi-mode: ±4dB
IOR Setting 1.2000~1.7000, 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

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 Functions Built in PDF report generation

Live Fiber detect: Verifies presence communication light in optical fiber

Dual wavelength(1310nm/1550nm) analysis-Macro bending detection

Trace overlay and comparison

VFL Module:

Wavelength (±20nm) 650nm
Power 10mw,CLASSIII B
Range 12km
Connector FC
Launching Mode CW/2Hz

OPM Module:

Wavelength Range 800~1700nm
Calibrated Wavelength 850/1300/1310/1490/1550/1625/1650nm
Test Range Type A: -60~+5dBm (standard); Type B: -40~+23dBm (optional)
Resolution 0.01dB
Accuracy ±0.35dB±1nW
Connector FC

LS Module (Laser Source)

Working Wavelength (±20nm) 1310/1550/1625nm⑤
Output Power ≥-8dBm
Accuracy ±0.5dB
Connector FC

FM Module (Fiber Microscope, as optional function):

Magnification 400X
Resolution <1.0µm
View of Field 480×270um
Dimension 235×95×30mm
Weight 110g


SC-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)


①Typical, backlight off, sweeping halted at 25℃, 6 hours typical continuous testing.

② Model T26F/T35F/T40F/T43F/T45F/TC35F are integrated with optical filter, which allow them to test PON network online (by using 1625nm/1650nm wavelength) and will not interrupt the fiber signal.

③Dynamic 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.

④Dead zone is measured with pulse width of 3ns and return loss under -55dB.

⑤1310/1550nm laser source uses OTDR1 port, and 1625nm or 850/1300nm uses OTDR2 port.

Weight 8 kg
Dimensions 40 × 34 × 27 cm
OTDR Port:



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