Authorization for user cards is directly done via the card issuer at the management center without wiring. It supports setting access control permissions such as valid address, valid date, card swiping times, and valid time period. Multiple models are available: metal waterproof version, plastic version, bare board, and password version, meeting both outdoor and indoor installation requirements. It enables encryption of IC card sectors and comes with unlimited-user free software, making it ideal for communities and premises where wiring is inconvenient but card validity needs to be controlled.