Naming conventions: Product_type_h/wRevision_s/wRevision_ValidArea_language_datecode.extension Product_Howto_language_ Theme-with-description.extension DES-3828_fw_revALL_4-50b52_all_en_20111031.zip Firmware for DES-3828 Firmware für den DES-3828 DES-3828_fw_revALL_450b12_ALL_en_080820.zip Firmware for DES-3828 Firmware für den DES-3828 DES-3828_mib_revALL_4.50.B12_ALL_en_080819.zip MIB files for DES-3828. MIB Dateien für den DES-3828.