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U201-A Main board

fuel-dispenser

U201-A Main board

Features :

Dual stable voltage input

Running normally on the condition of -40~~+55degree

Board-fixed EMC component

Input & output signal differentiate from system voltage individually

CPU changed only for different models

Weight:190g

100% Factory Tested.

Con Conection Con Conection Con Conection

P1 micro-swith 1 P6 power board P12 ----------

P2 micro-swith 2 P7 sensor 1 P13 display 1/A

P51 keypad 2 P8 sensor 2 P14 display 1/B

P3 keypad 1 P9 computer

P4 power board and SSR P11 display 2

products links

links

technical archives

    ur kinds of display mode: Mode I: serial BCD display, in which volume 6 digits, money or sales 6 digits, PPU or unit price 4 digits, totally 16 digits are transmitted out in means of serial mode, realizing operation of memory, c fuel dispenser oding and drive in display. Diagram 3-5: Main display board figure Mode II: serial display, in which chip transmit 16 digits including volume 6 digits, sales 6 digits and PPU 4 digits, memorizing and driving in display. Mode III and IV: parallel BCD display, in which chip transmits 16 digits codes including volume 6 digits, sales 6 digits and PPU 4 digits by means of parallel, once time one digit, memorizing, coding and driving in display. Most of fuel dispenser manufacturers recently adopt BCD serial mode to design display board, only very few adopt serial display mode. 1638300217170Display board structures are illustrated in Diagram 3-6 and 3-7. Diagram 3-6: LCD display board structure with parallel drive Diagram 3-7: LCD display board structure with serial drive Being a electric component easy to be failed, the hard structure of display board is introduced in detailed. LCD basic principle and working principle Liquid crystal a stable phase between liquid and solid in terms of thermodynamics, characteristic of not only liquidity and continuity under a certain temperature range, but crystal trait ---- long stick molecule, large proportion of width to length, a bridge between the two polarities. LCD Structure illustrated in Diagram 3-8, electrodes are made various letters, number or matrix according to different requirements. Diagram 3-8: Basic structure of LCD fuel dispenser 8-segment LCD and drive 8-segment display tube has two drive modes of static and hour-division. Fuel dispenser usually adopt static drive mode. Static drive circuit and wave showed in Diagram 3-9, the drive mode of LCD display is varied from that of LED display. As for LED only need to connect invariable conduct or cut off voltage to control emitting or wink of LED, but for LCD should not connect inv fuel dispenser

technical specification

    2 2   Terminate   fuel dispenser PROCESS   PROCESS Command   PROCESS   TXN DATA   TXN DATA   TXN DATA   Time-Out Processing Completed   Major Error Terminate Command   3   3 3ACK     ACK   ACK DATA   TXN   TXN DATA   TXN DATA   Entry Release   3   3ACK     4ACK     fuel dispenser TXN DATA   TXN ERROR   TXN DATA   Entry Release  2.3.3.2 UNATTENDED TRANSACTION PAYMENT PROCESSING STATE TABLE   fuel dispenser

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    oops into its tribal border region, sparking an ugly war with fundamentalist tribesmen in which hundreds have been killed—including no al- Qaeda member of note. Rumours have circulated of Mr bin Laden s presence in Afghanistan fuel dispenser s lofty eastern provinces of Konar and Nuristan. But, as a senior American official in Kabul says, “The trail has gone cold.�The Americans believe, though, that most of al-Qaeda s structure has been dismantled. Al-Qaeda probably never had more than a few hundred committed members, and many have been killed, including the three men said to be its last three operations chiefs. Others have been arrested. Associated outfits have also been hit hard, especially in Saudi Arabia and Indonesia. Yet the group around Mr bin Laden has shown a hydra-like resilience counter-terrorism experts say that it remains operational and more committed to spectacular atrocities than any rival. Since 2001, excluding incidents in Iraq and Afghanistan, there have been about a dozen major acts of jihadist terrorism—in, for example, Bali, Mombasa, Istanbul, Madrid and London. Of their perpetrators, only the Madrid bombers, most of whom were Moroccan, are thought to have had no direction or personal contact with al-Qaeda. British officials say that the supposed plot to blow up transatlantic airliners last month had a direct link to al-Qaeda, even if the alleged plotters were inclined to violent extremism before making contact. That seems to settle a question often asked of al-Qaeda is it a cohesive organisation or rather a source of inspiration for other radicals, who may claim to act in its name fuel dispenser ? It is both, is the answer, with Iraq the main example. In 2004 Abu Musab al-Zarqawi, the leading Islamist militant in the Iraqi insurgency until his death in June, named his movement “al-Qaeda in the land of the two rivers� a reference to Iraq, and swore fealty to Mr bin Laden. Yet he had little to do with the rich Saudi when both men were training terrorists in Afghanistan in 1999, fuel dispenser