Optical Time Domain Reflectometer AQ7275 (DISCONTINUED)

Stabilized Light Source

This light source option can be used for measuring losses. It can also be used for optical fiber identification, because it is capable of outputting not only continuous wave (CW) light but also a 270-Hz modulated light. * The stabilized light source option cannot be used for the 735041 (MMF).

Visible Light Source

This option can be used for identifying the multicore fiber cable and visually checking for a failure. The adopting the connector connection method enables the visible light to reach greater distances with less light leakage.

* The visible light source option cannot be used for the 735036, 735037, and 735041.

Built-in Dummy Fiber

You can use the dummy fiber to effectively detect abnormal near-end connection loss.

* The dummy fiber option cannot be used for the 735041.
* The built-in dummy fiber is not attachable and removable.

Optical Power Monitor

This is useful for simply checking optical power when performing link loss testing or troubleshooting. * The optical power monitor option cannot be used for the 735031 and 735041 (MMF).

Angled-PC Connector

You can connect an optical fiber with an angled-PC connector directly to the OTDR. The angled PC is often used for CATV networks to reduce the influence of reflection.

External Large Capacity Battery

Model 739881

External battery attached to the the OTDR extends the battery operation time up to 18 hours, which is three times the standard battery operation.

Printer/LAN

Measured results can be printed on site. It makes it easy to attach the printed sheet to your report. Remote control and FTP (file transfer) via LAN is also possible.

Easy to Operate for Beginners and Experts

Setup mode can be selected according

Simply select the measured wavelength and the AQ7275 takes care of the rest by automatically setting the optimal measurement conditions and by performing measurement and event analysis, and fully automated data saving.	Display the guidelines for the setup items from the Setup menu. Follow the step-bystep instructions to complete the setup.	This mode allows you to set all the detailed settings, not only the measurement and analysis settings but also the screen display and system settings.

Macro's with Predefined Procedures

One-button MeasurementSimply select previously set measurement procedures and then push a button.
You can execute up to 5 previously set and saved measurement procedures automatically.
Measurement and analysis conditions can be loaded from a file, making it easy to set up measurement procedures you executed previously.

Measurement withAuto Wavelength Switching

Multi Wavelength Measurement

Just push one button to switch multiple wavelengths and perform measurement automatically.
Measured waveforms for multiple wavelengths are displayed on a single screen, so it is easy to compare the waveforms. The measured data is saved to memory.

Useful Support Functions

Checking the Connection with the OTDR

- Plug Check Function

You can detect poor connections and dirty plugs

The plug check function monitors the condition of the optical connectors and displays an alarm if the connection is not properly made. This function is useful for checking for damage, dirt, or other problems with optical plugs at the OTDR or on the fiber under test. It is also useful for helping technicians to remember to connect the fiber under test.

Detecting Fault Events

- Fault Event Display Function

The fault event display function detects and displays abnormal connection or reflection points. Of the events detected by this function, abnormal events that cross a specified threshold value are highlighted in the event table and waveform display.

Measurement with Comparison to Reference Waveform

- Trace Fix Function

This function enables you to freeze the display of one waveform and overlap it on real-time or averaged waveforms. This is useful for creating a template when installing multicore fiber, or for checking aged deterioration during maintenance on existing fiber networks. In addition to the last measured waveform, a waveform can be loaded from a file for use as a reference waveform.

USB Function

The AQ7275 has two USB 1.1 compliant connector ports as standard (Type A and Type B). Type A port is for USB memory and USB hard disk drivefor storage. Type B port is for connecting external PC. AQ7275 can be remotely controlled from external PC, and an internal memory of AQ7275 can be accessed from external PC directly.

Multi Fiber Measurement Function

The Multi fiber measurement function automatically performs measurements and data-filing according to a pre-established file name table. At worksite, you can execute it by simply selecting a fiber number in the table.
The saved waveform can be easily shown in the preview window by selecting the core number in the table.
The OTDR Project File Editor included in AQ7932 Emulation Software greatly saves time to create file name table.

Multi Core Trace Comparison Function

Communication services must be interrupted when existing fiber optic cables are rerouted due to construction work of roads and buildings. This function minimizes the duration of the interruption by improving the efficiency of the rerouting work.
A waveform is measured before and after the work and compared against one another to determine a pass/fail condition using a user defined threshold criteria.
This function also enables the management of cores of a multicore fiber optic cable by number and color. This prevents the user from measuring a wrong core.
Numbers for measured cores are marked with check marks. This prevents the same core from being measured multiple times plus ensures no cores are overlooked.

Macro Bending Function

If there is a bend in the optical fiber, the longwavelength loss is higher at the location of the bend.
This function uses this characteristic to locate macro bends by measuring the same line at multiple wavelengths.

Scheduling Function

Fiber optic networks are known to be subject to seasonal failures such as one caused by freezing. Such
failures are restored automatically after several minutes to several hours. Thus the failure cannot be located due to the temporary nature of the fault.
The scheduling function performs measurements automatically in the specified period and saves the
measurement data automatically to an external USB flash drive. The AQ7932 Emulation Software on a PC is
used to call up the data before and after the fault event from a large amount of data automatically saved to the USB flash drive, and analyze the chronological changes in the waveform to locate the failure.
In addition, the remote control software provides support for measurements using the scheduling function, by providing a function to transfer the data stored in the USB flash drive to the PC via a network cable; a tool
that detects a data file containing a change exceeding the threshold from a large number of data files; and a tool that batch calculates losses between two points.