The term stands for Update or Updater . Searching for "iVMS 4200 Lite upd" suggests you want:
Are you planning to use for a local network setup or for remote viewing via Hik-Connect ? Hikvision iVMS-4200 Lite V1.0.0.4(Windows,Multilingual) download hikvision ivms 4200 lite upd
Hikvision does not officially call any file "UPD," but third-party mirrors or older forums may have mislabeled patches. The term stands for Update or Updater
