Assigning R/3 source system to BW

Hello Gurus,
could someone pls give me the exact procedure of assiging an R/3 source system to a BW system (BI 7.0). I was told that only people from the Basis are permitted to do this. Is that true, or can I also assign R/3 to BW?
Thanks,
SD
PS: Points will surely be awarded

Hi,
please go through the following document. You can establish the connection without the help of Basis but bear in mind this is a basis task.
http://help.sap.com/bp_biv335/BI_EN/BBLibrary/documentation/B84_BB_ConfigGuide_EN_DE.doc
Thanks,

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