Press Release
Optical fibre monitoring software detects occasional faults
A new software package allows the Yokogawa AQ7275 optical time-domain reflectometer (OTDR) to be used in unattended mode for detecting and monitoring faults occurring occasionally or at regular or irregular intervals in fibre-optic networks.
The new AQ7940 software is designed to meet the needs of operators or users of fibre-optic networks in locations that may be prone to occasional faults caused by temperature variations, moisture ingress, insects or rodent attacks. Traditional remote monitoring systems, normally used on larger-scale networks, are complex to set up, expensive and require highly trained operators, whereas the AQ7940 offers a solution that is both easy to operate and inexpensive.
In a typical application, the unattended OTDR is controlled by a PC via a USB or Ethernet interface. Using the Yokogawa AQ7940 monitoring software, the instrument can then continuously monitor optical lines, without the need for an engineer to be present.
With this setup, all line interruptions down to 100 ms are detected, and the corresponding measurement results (including OTDR traces) are logged by the PC software to produce a fault data log. The operator then simply checks the logged data to see what has happened during the period of unattended operation.
The AQ7275 OTDR offers a 100 ms response time at wavelengths of 850, 1300, 1310, 1550 and 1625 nm. A filter provides active line monitoring at the 1625 nm wavelength
For further information about the AQ7940 visit http://tmi.yokogawa.com/ea
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About Yokogawa Test & Measurement
Yokogawa Test & Measurement Division is a major worldwide force in the test & measurement market, with products that include oscilloscopes, power meters, wireless and optical communications test equipment, portable test instruments, recorders and data-acquisition systems, and semiconductor-related test systems.
For more information about Yokogawa Test & Measurement, please visit the company's web site at http://tmi.yokogawa.com/ea
About Yokogawa Electric Corporation
Yokogawa's global network of 19 manufacturing facilities and 85 companies spans 40 countries. Since its founding in 1915, the US$4 billion company has been engaged in cutting-edge research and innovation, securing more than 8,000 patents and registrations, including the world's first digital sensors for flow and pressure measurement. Industrial automation and control, test and measurement, information systems and industry support are the core businesses of Yokogawa. For more information about Yokogawa, please visit the company's web site at www.yokogawa.com
Download release as zip file (633k)Learn more about Yokogawa Europe - Test & Measurement- Terry Marrinan
- Yokogawa Europe - Test & Measurement
- European Test & Measurement Centre
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