3 - Operation
tDynamo| Three-way Secure Card Reader Authenticator | Installation and Operation Manual
Page 28 of 39 (D998200257-20)
3.3 About Sounds
tDynamo’s beeper provides feedback to operators and cardholders about the internal state of the device:
The device sounds one short beep on startup to test the beeper and indicate the device is powered on.
The device sounds one short beep after it has successfully read a contactless tap, and the cardholder
can safely remove the card or device from the contactless landing zone.
The device sounds two beeps when an operator cancels a pending EMV transaction.
The device sounds two short beeps when an operator successfully powers it off.