ATLAS Front-end Read-out Link Requirements

The purpose of this document is summarise ATLAS front-end read-out link architectures. Read-out links are used to transfer data from front-end electronics systems placed on detector to off-detector read-out drivers. The detector-specific information presented in this document has been obtained from the following set of `link contacts'. \begin{center} \begin{tabular}{rr} {\bf SCT} & Tony Weidberg \\ {\bf Pixels} & Martin Holder \\ {\bf TRT} & Peter Lichard \\ {\bf LArg} & Mark Pearce \\ {\bf Tiles} & Christian Bohm \\ {\bf Muon trigger} & Emilio Petrolo \\ \end{tabular} \end{ center} The dynamic nature of the opto-electronics industry and the different time-scales for the implementation of optical read-out links between ATLAS subdetectors means that the contents of this document are liable to change. As this document is intended to be a useful reference, such changes will be added to the document as appropriate and documented in full on the following page.