AQ7280 Modular Optical Time Domain Reflectometer

Intermittent Connection Monitoring

Under cold weather conditions, fiber network connectivity can be interrupted intermittently due to bending or losse connections. 

Identifying such intermittent interruption requires periodic monitoring and advanced analysis algorithm. 

The OTDR Schedule Measurement function is useful when monitoring a particular fiber core based on user-defined measurement period and interval. 

Measurement results are compared with a reference trace and analyzed for any discrepancies. Based on the user-defined loss threshold, discrepency at a particular distance is identified and the occurance time is recorded. 

Macro Bending Detector

Thanks to the OTDR's advanced analysis function and macro bend characteristics, users can immediately identify and locate macro bend events along a fiber network. 
Multi-wavelength traces are acquired on the same fiber, then is compared and analyzed automatically in a single-button operation. 
When the loss difference of a same location event at different wavelengths is more than the user's defined threshold, the macro bend is detected!

Fault Locator

The Fault Locator is an OTDR-based application for simply identifying the fiber break location. 
Adaptive, smart-algorithm based on selected network architectures, such as point-to-point or PON network topology.
Simple view of distance information for easy interpretation. 
Easily toggle trace view for additional detail analysis. 

PON Optimized

Excellent hardware performance and advanced analysis algorithm enable the AQ7280 to accurately characterize Passive Optical Network (PON) through high-port-count splitters (up to 1 x 128).
PON mode assists beginner/expert users in simple configuring OTDR measurement settings based on PON topology information for optimal results. 
Short event dead zone and high sampling resolution enable users to detect near-end location of connectors that are as close as 0.5 meters (With the built-in optical cut filter and dedicated measurement port, the AQ7283F module is capable to measure live PON for maintenance purposes. 

Multi-Language Support

A wide selection of diaplay languages assists users in operating the AQ7280 in their native language. Available languages influde, but not limited to: Chinese, Czech, Dutch, English, Finnish, French, German, Italian, Norwegian, Polish, Portuguese, Spanish, Swedish, and Turkish.

Supports 1383 nm for optical fiber cable inspection
1-port OTDR 1310/1383/1550/1625 nm

• Supports the water-peak wavelength of 1383 nm where water ions (OH) in optical fibers absorb light.
• Suitable for the inspection of optical fiber production and the cabling process of optical fibers.
• Its portability allows the on-site testing of communications network lines when CWDM networks are introduced.

Traditional single-mode fibers (SMF) contain a large amount of water ions (OH). Since water ions (OH) absorb light at 1383 nm, the optical loss of single-mode fibers increases at 1383 nm, this characteristic is known as the water-peak. The AQ7283J was designed with the 1383 nm wavelength capability to specifically test the water-peak in SMF.

The loss-wavelength characteristics of single-mode fibers

The effect of OTDR measurement at 1383 nm

 

Quality inspection of low-OH optical fibers/cables Low-OH single mode fibers*¹ are available for CWDM applications. They are tested at 1383 nm in each process of production. Having four wavelengths in one port, the AQ7283J can measure at four wavelengths without switching the optical connector by just pressing one single button. It can be controlled remotely via a USB or Ethernet interface.*² *¹: ITU-T G.657 standard *²: AQ7280 option (/LAN)

Loss test of existing networks before introducing CWDM transmission system When the introduction of the CWDM transmission system to existing optical fiber networks is considered, the optical loss of the network at 1383 nm needs to be measured because a traditional optical fiber may be used. Thanks to its portable design, the AQ7283J OTDR unit can measure the loss at 1383 nm on-site where optical fibers are installed.

Equipped with “FILTERED” 1625 nm port for live-line maintenance
2-port OTDR 1310/1550 and 1625 nm

• A built-in 1625 nm port with a cut filter to isolate from the communications wavelength enables the measurement of live-lines without being disturbed by active communications signals.
• The wavelength accuracy of 1625 nm ±10 nm is guaranteed to enable maintenance of 10 GE-PON. Whereas other OTDRs with a broader wavelength tolerance could disturb the 10GE-PON transmission signals.
  Note: The AQ7283F is another three-wavelength model with 1310/1550 and filtered 1650 nm.

Measurement of live communications lines The built in communications wavelength cut filter in a dedicated 1625 nm port enables testing of fiber where live communications traffic wavelengths (1310, 1490, 1550 nm) exist.

OTDR waveforms of live communications lines

Macro bending measurement The optical transmission loss of optical fibers at long wavelengths like 1625 nm increases at the point where the macro-bending occurs. By comparing OTDR waveforms measured in each wavelength, the macro bending can be detected. *Other OTDR units with 1625 nm: AQ7283H, AQ7283K, etc.

OTDR waveforms with macro bending

Three-wavelength model for FTTH network testing
1-port OTDR 1310/1490/1550 nm

• Successor model of the AQ7275 OTDR (735035)
• Suitable for the installation check of FTTH networks that requires the measurement at 1490 nm.
• More affordable price than the AQ7283K that is a four-wavelength model with 1310/1490/1550/1625 nm.

This is a license product for adding applicable optional features on to AQ7280 series on your own. It is necessary to update main unit firmware in advance to R1.07 or later and above in order to apply this license.

 

Model	Suffix code	Description
735050	-MNT	Monitoring function
	-SMP	Smart mapper
	-FST	Fiber Surface Test Function

Measures and displays optical power of a light source as an absolute/relative value for testing transmitter/network performance. Measurement results can be saved for reference purposes. Invaluable test instrument during installation and maintenance. Calibrated and selectable wavelength setting. Single-mode and Multi-mode measurement ready. Continuous wave and modulated wave detection capability. Two selections of optical power sensors are available- optical power meter and optical power checker, different on the specs and functions.

Optical Light Source

Outputs a stable, continuous wave of light for measuring end-to-end attenuation accurately when paired with Optical Power Sensor. Modulated light function at 270 Hz/1 kHz/2 kHz is also available for fiber identification or continuity check purpose on a live fiber network.

Visible Light Source

Visible, continuous/modulated red light laser. Invaluable test instrument for checking the continuity of pathcords, launch fibers, or short fiber trunks. Breaks and bendings in fiber can be identified visually as the visible light exits the fiber on such fault events.

Reduced energy, emission of CO2, NOX and SOX about 18% to 33% compared to the previous model. Results of Life Cycle Assessment