... IC Card insert the lock to open the door Software control,card open the door IC Card,IC Lock card , ... switch. The whole Hotel Lock System :Hotel lock,open door card,Encoder,software ,and the Energy saving switch. ... kinds of cards,use the cards to open the door and get power in the room. Mortise A type lock ... Supply DC6V, use of 4 pieces of No. 5 (or No. 7) AA batteries, with lack of voltage indications ...