3. Specifications
3.1 WiFi
PayPad will communicate via Wifi with the respective Wifi Access Point for sending
payment transactions to the payment gateway, communicate with the NumberFour
Backend in the cloud and get Software Updates.
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Wifi Communication with minimum distance 10cm and up to 50 meters distance in
open environment with Dasher Access Point and a minimum data transfer rate of
100Mbps @50m (11n HT40 MCS7)
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Wake-up of MCU via Wifi
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Remote Firmware updates of Wifi Chip and PayPad MCU
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Can be powered down and reset via MCU
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Can operate at the same time as the NFC antenna
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Full IPv4/IPv6 TCP/IP stack with support for DHCP, HTTP/SSL(TLS 1.2), UDP,
Broadcast, Multicast, DNS, full security incl. WPA, WPA2
3.2 Microcontroller Unit (MCU)
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Application processor that runs the enfore applications
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Communication with Wifi, NFC and USB
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Processing of all contactless and contact payment transactions incl. encryption; all
payment kernels are running on the MCU
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Drives the 3.5 inch screen
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Security features to comply with PCI-PTS requirements
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Remote firm- and software update
3.3 Contactless/NFC Reader
The Contactless/NFC reader is implemented with the follow payment card:
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EMVCo L1 Contactless Reading
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MasterCard Contactless
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Visa Paywave
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Amex ExpressPay
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Discover D-Pas/Zip
3.4 Magnetic Stripe Reader (MSR)
PayPad allows payments with Magnetic Stripe Cards and allows the usage of proprietary
Magnetic Stripe Cards for Customer Relationship Management.
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Reading of data from 3 Tracks of a Magnetic Stripe Card
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Data to be transported securely from the Magnet Head to the MCU via meshed
Cable
Confidential, no distribution
7
Summary of Contents for PayPad
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