MagTek USB MagneSafe V5 Flash - Manual (Page 14)

Flash MagneSafe Swipe Reader
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2. If the battery has enough charge to perform this card read but is low, the LED changes to
solid red for about two seconds, followed by green indicating the reader is ready for a
card swipe. It would be a good idea to charge the battery soon.
3. If the battery does not have enough charge to to perform this card read, or there is no
room to store the transaction (reader full), or the reader has run out of DUKPT keys, the
LED blinks red quickly for three seconds and the reader reverts to power off or battery
charging state (if connected to USB power). If the reader is not being powered through
the USB cable, the User Switch is disabled until the reader is powered through the USB
cable; the reader will not operate again until it is charged.
When the LED goes green and a user swipes a card, the LED goes off briefly while the reader
decodes the card swipe, then the LED goes green to indicate a good swipe or red to indicate a
bad swipe.
When the card swipe was good, the LED goes solid green for about two seconds, then the reader
reverts to power off or battery charging state (if connected to USB power).
When the card swipe results in an error, the LED goes solid red for two seconds and then reverts
to green indicating that the reader is ready for another attempt at card reading. The Activity
Timer is set to its maximum value.
When the LED goes green and the reader is waiting for a swipe, if the Activity Timer expires,
the reader reverts to power off or battery charging state (if connected to USB power).
When the LED goes green and the reader is waiting for a card swipe, if the battery charge goes
too low to continue with this read, the LED blinks red quickly for three seconds and the reader
reverts to power off or battery charging state (if connected to USB power). The reader must be
charged before reading cards again.
CARD READ
A card may be swiped through the reader slot when the LED is solid green. The magnetic stripe
must face toward the LED and may be swiped in either direction. If there is data encoded on the
card, the reader will attempt to read the data, encrypt it, and then store it. If no errors were found
while decoding the card data, the reader will automatically turn off.
READER STATES
The reader tracks its operational state. The application may retrieve the state at any time using
the Get Reader State Command.
For convenience, this manual refers to states with the notation State:Antecedent (e.g.,
WaitActAuth:BadSwipe). State definitions can be found at the definition of the Get Reader State
Command.
In most cases, the application could also track the state by inference. As the application interacts
with a reader, most state transitions are marked by the commands and responses exchanged with
the reader.