Lenel NetBox Quatro 4

**Lenel NetBox Quatro Series 4** là edge controller multi-door cho Lenel ecosystem — pairs với [OnGuard ACS](/san-pham/lenel-s2-onguard-acs/) hoặc S2 Security Suite cho enterprise deployment. Điểm khác commercial controller: (1) **Cyber-hardened government grade** — TLS 1.3 + FIDO2 + encrypted firmware update (vs commercial OK plaintext); (2) **Offline-capable 1000+ event** — mất server connection vẫn unlock theo cached schedule + log audit; (3) **Native Lenel + S2** unified platform — không cần middleware; (4) **Tamper switch built-in** — alert khi mở vỏ controller. Use case: government building (ministry HQ), military base, embassy, oil & gas critical, hospital JCI. Pattern deployment: 1 Quatro controller per 4 cửa local + central OnGuard server HQ federated. An Ninh Số có deployment manager Lenel certified.