Naming conventions:
Product_type_h/wRevision_s/wRevision_ValidArea_language_datecode.extension
Product_Howto_language_ Theme-with-description.extension 


DCF-660w_ce_en_050101.pdf				CE Declaration.

DCF-660W_ds_revALL_100_ALL_en_050101.pdf		Datasheet.
							Englisches Datenblatt.

DCF-660W_qig_revALL_100_ALL_de_020424.pdf		Quick Install Guide for DCF-660W.
							Schnellinstallationsanleitung für DCF-660W.

DCF-660W_man_revALL_100_ALL_en_020917.pdf		Manual for DCF-660W.
							Anleitung für DCF-660W.