Yokogawa introduces AQ7275 series of OTDRs

Six models have been added to the Yokogawa AQ7275 series of optical time-domain reflectometers (OTDRs).

The instruments - the 735031, the 735034, the 735035, the 735036, the 735038 and the 735041 - extend the company's range of applications to cover virtually all metro, access and core networks, as well as fibre-to-the-home (FTTH) networks and passive optical networks (PONs).

Key elements of the novel models, which bring the total number of products in the AQ7275 series to nine, include a wider range of wavelengths and an enhanced dynamic range (up to 45dB).

According to Yokogawa, high dynamic range is effective for measurements on long-distance fibre transmission lines, incorporating splitters with large losses.

The 735031 is designed for metro, access network and FTTH applications and supports the maintenance wavelength of 1,650nm.

It includes a 1,310nm/1,550nm cut-off filter.

The 735034 is a high-dynamic-range model for the installation and maintenance of core and metro networks and the 735035 is a three-wavelength model for access network and FTTH/PON applications.

The three wavelengths are 1,310nm for data from subscribers, 1,490nm for data to subscribers and 1,550nm for video to subscribers.

The 735036 also supports three wavelengths (1,310nm, 1,550nm and 1,625nm) and is designed for metro and core applications.

It also supports the maintenance waveform of 1,625nm and includes a 1,310nm/1,550nm filter.

The 735038 supports the same wavelengths as the 735036 but adds high-dynamic-range capabilities for metro and core network maintenance and monitoring.

Finally, the 735041 is a four-wavelength model (850nm and 1,300nm multi-mode and 1,310nm and 1,550nm single-mode) for the installation and maintenance of local-area networks (LANs) and FTTH applications.

All models in the AQ7275 series feature a short-event dead zone of 0.8m, allowing them to detect closely spaced events in cables installed in customer premises.

The company claims that the instruments offer ease of operation, with the setup mode selectable according to the skill level of the operator.

The AQ7275 series features a quick start-up capability - 10 seconds from power-up to taking a measurement.

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