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These toll booths are outfitted with an Advanced Toll Payment Machine
(ATPM) to figure out how much change you have coming back, and give it to you.
The ATPMs (Automated Toll Payment Machine) are equipped with the Snap Ultimate I/O, an Ethernet-based controller that can communicate with the lane controllers used at countless toll gates around the country.
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With that I/O, the ATPM will count your car’s axles, determine its vehicle class, calculate the toll, accept cash or credit, dispense change, print receipts, activate toll gates, and allow itself to be remotely monitored over the Internet.
The Snap Ultimate employs up to 16 I/O modules, each with four separate sensor channels, to “talk” to the lane controllers, credit card readers, coin counters, currency readers, toll displays, change dispensers, receipt printers, and numerous other I/O devices. Each module incorporates connectors for wiring to I/O devices, and uses an Ethernet connector atop the processor module to provide the communication link.
An Intel based in the processor module serves as the ATPM’s brain, and enables TCP/IP-based communication over the Internet with state agencies that monitor each toll booth
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