Structure

Structure

• Purchasing Terminalblock«Block»

  A self-service terminal that prices goods and takes payment through an attached EFTPOS machine.

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  • Displayblock«Block»

    Customer-facing basket and payment prompts.

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  • EFTPOS Machineblock«Block, InterfaceBlock»

    Payment device handling card presentment, PIN entry and acquirer messaging.

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    • Card Readerblock«Block»

      Contactless, chip and magstripe card interface.

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    • Comms Moduleblock«Block»

      Carries acquirer traffic over the store network.

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    • PIN Keypadblock«Block»

      Encrypted PIN entry keypad.

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    • Secure Elementblock«Block»

      Tamper-responsive store for keys and the payment application.

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  • Power Supplyblock«Block»

    Mains to low-voltage conversion for the terminal and the EFTPOS machine.

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  • Receipt Printerblock«Block»

    Thermal printer producing the customer receipt.

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Signals

• CardPresentedsignal
• PaymentApprovedsignal
• PaymentDeclinedsignal

Interfaces

• Acquirer Linkinterface

  Payment network link.

State and activity

State machine: purchasing-terminal-states

This state machine has no regions.

This state machine has no transitions.

Activities