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K. Enouf, S. Hermant, M. Jakob
Axon' Cable was selected to carry out the development of a new, impedance-matched SpaceWire (SpW) connector under a ESA Technology Research Project (TRP). The classic existing SpaceWire connector, the 9 way micro-D, whilst having the advantages of being both small in size - and common to most projects - is not electrically adapted to SpaceWire, nor is it particularly efficient for EMC protection. As application data rates start to increase there is, therefore, a need to develop an improved connector interface. In a supplement to the original scope of the project, Axon' has also designed and manufactured a number of different cable constructions in order to evaluate whether the existing 4 shielded twisted pairs configuration is indeed the best option for the SpaceWire LVDS transmission. Both of these activities fit nicely into Axon's strategy of seeking to increase the data rate capability and more generally the overall performance of the full assembly by working on all of the components in the link. Not only SpaceWire, but a wide range of protocols are demanding ever greater efficiencies and currently there are no suitable solutions on the market for space applications. In the next short section Axon' presents a brief background of their high data rate (HDR) experience. The main body of the paper is a detailed presentation of the new prototype compact, impedance-matched SpaceWire connector, which discusses the various trade-offs performed in order to achieve a desirable size coupled with significantly improved performance. The penultimate section deals with an internal survey carried out on possible new cable constructions for high data rates, and this is followed by a brief conclusion.
Deutscher Luft- und Raumfahrtkongress 2017, München
Verlag, Ort:
Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2017
Conference Paper
21,0 x 29,7 cm, 7 Seiten
Stichworte zum Inhalt:
High Datarate, Spacewire
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