U209-A Electro-Mechanical Totalizer

U209-A Electro-Mechanical Totalizer

Features:

Power: DC12V

Total :7 digits

100% Factory Tested.

Packing:

Weight: Dimension:

200g/case of 1 70×32×42mm/case of 1

RAM: to store data in the form of files for processing by a computer's central processing unit (CPU). Once power cut, data in RAM will be lost. Capacity is 256 byte to 1k. EEPROM: electrically erasable programmable read-only memory, used for storing customer’s data. From view of structure, filing IC card actually is a full-mounted singlechip (SCM). Filing IC card security Since storing large information needed to protect, filling IC card has to have high security, not only preventing inappropriate operation, but also restraining illegal visit and manipulation. Therefore, effective protection mechanism is considered in design and manufacture so as to be provided with high capacity of defending attack. The major safety measures of chip are: chip identifying code, preventing disassembly and erasion, data encryption, etc. Chip identifying code: each ch fuel dispenser ip has a unique identifying code, called “chip serial number�? Chip preventing disassembly: photoconductive and pressure sensitive components check exterior mechanical force on chip. Once open seal all sensitive data will be cleaned. Chip anti-detect: in order to prevent illegal detect of data, adopting high/low voltage inductive sensor, low frequency inductor and anti-interference technology. Anti-erasion: adopting effective measures to prevent erasing memory through ultraviolet, x-rays and like on. Data encryption: operation sys fuel dispenser tem stored in ROM is core of CPU card, which adopt code encryption and special technology hiding ROM area. Meanwhile, encrypted inductor is able to quickly erase RAM area so as protect temporary data and encrypted lock. As for EEPROM area, it is adopted specially safety protection measures in chip production. IC card categories and purpose Customer card This kind of IC card is hold by v fuel dispenser ehicle driver or customer. Customers need to enter personal identification number (PIN) into keyboard as filling. Filling card includes general customer card and unit card. Staff card Hold by general staff of filling stati

Page: 49 of 65　　 100 bin8 M　　 CWPStatusMessage　　 (64H) bin16　　 A CWPStatusMessage must be sent unsolicited (without　　 acknowledge) by the CWP whenever a change has　　 occurred in the status of the CWP (DataID State) or the　　 AssignControlID.　　 The CWPStatusMessage includes:　　 - State (DataID = 20)　　 - AssignControlID (DataID = 22)　　 Please note that the CWPStatusMessage DataID is built　　 up as follows:　　 100 0 20 01 CWPs 22 02 acd　　 fuel dispenser Where:　　 CWPs is the Car Washing Point Sate　　 acd is the Assign Control device　　 The Data_Lg of the CWPStatusMessage is always 0.　　 MANUFACTURER OIL COMPANY SPECIFIC　　3.10 Washing Transaction Data　　This data allows the CD to handle the transaction data from a CWP.　　The access to the washing transaction data is done by the database address CWP_ID (car　　washing point identification) + TR_DAT (transaction data) + TR_Seq_Nb (transaction　　sequence number). fuel dispenser 　　The TR_DAT = 20H is used to ask for all transactions on a car washing point that are in the　　Recordable (state 2) or Locked (state 3) state.　　In this section (3.10) only the Read Write in State column refers to the Transaction Buffer　　State Diagram. The Transaction Buffer State is independent of the Point State.　　 WASHING TRANSACTION DATABASE　　 DB_Ad = CWP_ID (21H-2FH) + TR_ fuel dispenser DAT (21H) + TR_Seq_Nb (0001-9999)　　 Data Field Type ReadWrite MO　　 Data Element Na

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