Salto XS4 SMILE Proximity Contactless Office/Passage Mode Card. Use when commissioning an XS4 Prox in Scaleable mode if not implementing a ROM or Software controlled system. Used to configure a Salto XS4 SMILE Proximity Lockset, or Wall Reader (not the E-cylinder) to accept Office/Passage mode as well as initiating user cards to place a door in this mode.