System components: The system consists of canteen Shoufan machines, card readers, communication devices, dining card, management systems, communications lines. 
 1, operating temperature: 0 ℃ ~ +50 ℃ 
 2, storage temperature: -30 ℃ ~ +70 ℃ 
 3, Humidity: 10% ~ 95% RH 
 4, Working Voltage: Input: 12V DC (China launched the first low-voltage IC card Shoufan machine) 
 5, the working current: 300mA 
 6, power consumption: about 5W 

 Product Features canteen Shoufan 
 1, mode: online / offline consumption patterns 
 2, the consumption patterns: the amount of direct input / fixed consumption patterns / set time consumption 
 3, the card number: Open 
 4, card standard: philips mifare1 and compatible with IC cards 
 5, Display: 10-bit LED digital display double-sided, you can display 9,999.9 yuan, a credit card can be deducted up to 9999.99 yuan. 
 6, data collection: Admin, Computer Active collection and real-time monitoring collection 
 7, data query: card balance / day of total transactions 
 8, means of communication: RS 485 
 9, blacklist download: support for real-time download, report the loss or download 

 Canteen Shoufan Main Specifications: 
 1, program memory: 64K Flash ROM 
 2, data memory: 256Kbit Flash 
 3, the offline storage of data: 30,000 
 4, storage black list: 10000 
 5, card distance: 3cm-10cm 
 6, read and write time: less than 0.15 seconds 
 7, data storage: 10 years 
 8, the communication interface: RS485 Interface 
 9, RS485 communication rate: 9600bps 
 Local Security canteen Shoufan 
 1, the machine initialization certification: required administrator system card authorizing the use and management of passwords 
 2, the transmission of data collection: data and address are encrypted through the internal real 
 3, permission to use the card: card privileges and set permission to the canteen Canteen Vending machines are allowed to trade in line 
 4, report the loss of processing the card: Card can not report the loss for the black card transactions, real-time download blacklist 
 5, the total card spending limit: the maximum daily total spending limit card, lost card, the maximum protection of the interests of cardholders 
 6, improper handling of credit card: credit card spending canteens Shoufan failure will automatically lock the card, can unlock the card again to unlock or to the Card Center 
 7, the use of the card limit: to set the card limit to prevent extended use 
 Contact: Mr Yuen telephone;