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


DU-560m_ce_en_050101.pdf		CE Declaration.

DU-560m_ds_de_050101.pdf		German Datasheet.
					Deutsches Datenblatt.

					Englische Anleitung für den DU-560M.

DU-560m_qig_en_External-Modem-QIG.pdf	Quick-Install-Guide for DU-560M.