Elmo ET8/480 - Enabling in Maximum Security Mode; Disabling the System in Maximum Security Mode via Keyboard

ET8/480, ET8/480S and ET8/480PT - TECHNICAL MANUAL - 39
16.4 Enabling through electronic key
16.5 Enabling in MAXIMUN SECURITY mode.
16.6 Disabling the system in MAXIMUN SECURITY mode via keyboard
User non authorized to "MAXIMUN SECURITY" mode
Non permitted action