6 - Operation
DynaFlex and DynaFlex Pro| Three-way Secure Card Reader Authenticators | Installation and Operation Manual
Page 43 of 56 (
D998200382-10
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6.9
Card Reading
6.9.1
About Reading Cards
The steps for starting a transaction and reading a card or contactless payment device are different
depending on the device’s configuration and on the design of the host software. Host software developers
should see section
for implementation references. The solution
developer should provide solution-specific instructions for operators to follow. A transaction generally
follows this essential flow:
1)
An advanced operator has already made sure DynaFlex or DynaFlex Pro is configured properly and is
connected to the host (see section
). When the device is connected to the
host via USB and powered by the USB-C connector, the host software may always keep a connection
open to the device.
2)
The operator makes sure DynaFlex or DynaFlex Pro is receiving power either from its rechargeable
battery or from the USB connection, and is awake and powered on (see section
On / Wake Up from Standby Mode / Power Off
and section
3)
The operator uses the host software’s user interface (for example, a point of sale) to finalize a
transaction amount, then initiates a transaction.
4)
The host communicates with the device, and reports to the operator when the device is ready.
5)
The operator guides and assists the cardholder in presenting payment.
6)
The cardholder interacts with the device to present payment. The following sections provide
additional details about presenting each of the available payment methods.
7)
Devices with a display show messages prompting the cardholder to perform certain actions. The host
should also monitor the progress of the transaction, and when necessary, should report issues to the
operator, who may need to relay the messages to the cardholder.
8)
The device reports the success or failure of the transaction to the cardholder and to the host.
