A. Hotel Mifare card door lock System
DouWin mifare card locks, computer, management software, Encoder, NXP card, energy saving switch.

B. Multiple functions
1. Five levels of control: General control(Master card), building control, floor control, area control(Staff card) ａnd room control(Guest card).
2. Password control: System password and operating password together to ensure security.
3. Cipher coding to key card: Each card has a different code that cannot be copied. Compulsory decoding will destroy the card automatically.
4. Area control: Cards of different types and levels can open different locks in different locations.
5. Timing control: Working clock is set inside locks to control the effective time limit of card keys.
6. File record: All issued card keys have records including each opening(also mechanical key opening).
7. Loss reporting: Open function can be cancelled when the card is missed.

Basic Technical Functional Index:
1. Power Supply: DC6V, use of 4 pieces of No. 5 (or No. 7) AA batteries, with lack of voltage indications.
2. Static Power Supply: <1u A>
3. Dynamic Power Supply: About 200mA
4. Lifetime of battery: For the allowed door open times, it normally can exceed 10, 000
5. Inductive Distance: 3-10cm
6. Record inside the lock: 512 lines for standard type
7. Setting Requirement: Working temperature -20º C~70º C, humidity: 98%max
8. Anti-static Electricity: Totally closing status, the problem of static electricity is resolved