NEC Begins Sale Of Transmission Cards For Uncompressed Video Signals Over Long Distances Without Relays
Tokyo - NEC Corporation announced recently the launch of sales for the NOIF2500, a device capable of long distance transmission of uncompressed high vision video through up to 160 km of optical fiber, and ideally suited for broadcasters and telecommunications carriers.
The NOIF2500 converts digital video signals into optical signals that can be transmitted over long distances. Since video signals are not compressed with this transmission process, image deterioration is eliminated and high quality video is easily transmitted. Adoption of an SFP (*1) optical transceiver module enables long distance transmission of up to 160 km without relays. Furthermore, transmission distance and wavelength may be selected in order to meet individual customer needs.
In addition to launching sales of the NOIF2500, NEC will also offer the MF712/NOIF, a unit which is combined with the MF700 series and supports the same size redundant power functions as current units. The MF700 also supports NOIF2500 transmission cards as well as a full range of video sound conversion cards.
NEC is displaying the NOIF2500 at "Inter BEE 2008," International Broadcast Equipment Exhibition, from November 19 - 21 at Makuhari Messe, Japan.
NEC boasts a rare combination of know-how and technology that was gained from 80 years of experience providing broadcasters and telecommunications carriers from 110 countries with reliable, cutting-edge systems. In recent years, terrestrial digital broadcasting has launched throughout countries all over the world, and the demand for high quality video transmission has rapidly expanded. NEC aims to capitalize on its achievements in order to drive the growth of video solutions using Next Generation Networks (NGN) with worldwide broadcasters and telecommunications carriers.
Please see below for more detail on the NOIF2500
1) Long Distance Transmission up to 160 km
Adoption of SFP enables the optical module to perform CWDM/DWDM (*2) wavelength multiplexing and to select transmission distance, which may reach up to 160 km without relays.
2) Interface Variety
A wide variety of video interfaces are available, in addition to the support of a range of applications that include SDH (*3) or dark fiber, wavelength, transmission distance, multiple transmission channels, and multi-directional transmission, which may be selected in accordance with user needs.
3) Transmission Efficiency
In addition to functional enhancements over the existing NOIF2000, the NOIF2500 enables transmission efficiency that is capable of transmitting a maximum of 7 lines of uncompressed digital high vision video through a compact unit measuring 132mm in height.
4) MF700 Series Shared Housing (3RU, 1RU) Package
Shared housing with the MF700 series video sound converter is available, which equipped with video signal distribution cards and frame synchronizers, support a wide variety of video cards. Housing units containing the MF700 series also have optical video transmission cards, which simultaneously accommodate analog video signal transmission.
(*1) SFP: Small Form Factor Pluggable An industry standard for compact optical transceivers that was established through a range of optical communications related manufacturers.
(*2) CWDM: Coarse Wavelength Division Multiplexing DWDM: Dense Wavelength Division Multiplexing Wavelength division system. The system multiplexes and transmits optical signals from a range of different wavelengths.
(*3) SDH: Synchronous Digital Hierarchy A standard that governs high speed digital transmission systems using optical fiber.
SOURCE: NEC Corporation