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


DSL-504t_ce_en_050101.pdf			CE Declaration.

DSL-504T_ds_revALL_100_ALL_en_050101.pdf	Datasheet.
						Englisches Datenblatt.

DSL-504T_howto_pl_Ustawienie-do-NEOSTRADY.pdf	Howto with screenshots
						Ustawienie do NEOSTRADY.

DSL-504t_man_en_Install-Guides.pdf		Manual for DSL-504t.
						Englische Anleitung für den DSL-504t.

DSL-504t_man_pl_Manual-040709.pdf		Polish Manual for DSL-504t.

DSL-504t_qig_de_Installation-DSL-504T.pdf	German Quick-Install-Guide for DSL-504t.
						Deutsche Schnellanleitung für den DSL-504t.

DSL-xxx_qig_pl_Konfuguracja-dla-Neo.pdf		Polish Quickest-Install-Guide for DSL-xxx.

DSL-504T_howto_pl_Konfig-pod-ADSL-annex-A.pdf	Manual ADSL Annex A polish