The Log Source Configuration Guides are part of the LSP documentation. The LSP guides can be found on:

• https://edelivery.tibco.com by searching for "Log Source Packages" and looking under Components section (after the "Products found" section) in the search results or
• https://support.tibco.com by clicking Downloads->Hotfixes->AvailableDownloads->LogLogic->Log Source Packages.

The filename containing the source configuration guides is TIB_loglsp_<pkgversion>_guides.zip.

Edelivery contains the newest LSP packages but if you need older versions then the support portal link is the more comprehensive resource.