Operations Manual

8800-45001.A
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06 Oct 2022
2-1
2. FUNCTIONAL DESCRIPTION
This chapter provides detailed information on the validator features and function.
2.1 VALIDATOR
Customers seeking to board a vehicle pay their fare by simply presenting contactless media at the validator,
shown in Figure 2-1. The location on the validator where the customer presents their media is instantly
recognizable with graphics and messaging shown on the display. The customer can either tap or bring the
media close to the display for processing.
Figure 2-1.Validator
Depending on the media type presented, the validator begins reading when the contactless media is
approximately 1.9 inches from the display. When the media has been successfully read, the display on the
validator provides a visual indication that the media has been read successfully.
Upon a successful read, all authentication and local validation actions are performed automatically by the
validator.
The validator contains a Point of Interaction (POI) device that is a highly secure Level 1/Level 2 compliant
contactless payment reader for the processing of open loop contactless payment media and closed loop
proximity smart cards.
The device can read and process a wide variety of International Organization for Standards (ISO) 14443
compliant smartcards and portable devices employing Near Field Communications (NFC) technology such as
NFC phones and smart wearables.
The validator components include the following:
• Liquid crystal display (LCD)
• A fast, low power central processing unit (CPU)
• Synchronous dynamic random-access memory (SDRAM)
• Flash memory
• Serial input/output (I/O) port
• Battery