Index of ftp://ftp.zyxeltech.de/2.new_mirror/NAS520/software

`NAS520_NSU_2.1.1.15.0520_build_1064_MAC.zip`	`23.82Mb`	`May 22 2015 at 12:00`
`NAS520_NSU_2.1.1.15.0520_build_1064_MAC_2.pdf`	`128.30Kb`	`May 22 2015 at 12:00`
`NAS520_NSU_2.1.1.15.0520_build_1064_WIN.zip`	`7.61Mb`	`May 22 2015 at 12:00`
`NAS520_NSU_2.1.1.15.0520_build_1064_WIN_2.pdf`	`125.55Kb`	`May 22 2015 at 12:00`
`NAS520_NSU_2.1.2.15.0831_build_1065_MAC.zip`	`23.34Mb`	`November 27 2015 at 01:00`
`NAS520_NSU_2.1.2.15.0831_build_1065_MAC_2.pdf`	`133.02Kb`	`November 27 2015 at 01:00`
`NAS520_NSU_2.1.2.15.0831_build_1065_WIN.zip`	`7.60Mb`	`November 27 2015 at 01:00`
`NAS520_NSU_2.1.2.15.0831_build_1065_WIN_2.pdf`	`128.51Kb`	`November 27 2015 at 01:00`