Card Reading / Transactions; About The General Status Led - Magtek mDynamo Weatherized Installation And Operation Manual

4 - Operation
4.2

Card Reading / Transactions

Transactions begin when the host software initiates them. If a cardholder inserts a contact chip card, the
device detects the chip and attempts to communicate with the card. The host software may choose to use
the notifications from the device as events to trigger additional guidance (such as audible, visual, or tactile
feedback) to the cardholder. For example, for chip cards, the host software may direct cardholders to
leave the card inserted until the transaction is complete, then prompt the cardholder remove the card when
the transaction is complete.
Before and during transactions, an operator may control or monitor the device using the host software
and/or the General Status LED, which is a red/green LED that can be host controlled.
Programmers of host software should see section 6 Developing Host Software for cross-references to
programming tools and documentation for communicating with the device.
4.3

About the General Status LED

The device's General Status LED can be used to provide feedback to operators and cardholders about the
internal state of the device. Custom software on the host the device is connected to may completely
customize / override external LED behavior.
Table 4-1 shows how to interpret the colors and flashing patterns of the General Status LED if the host is
not overriding the behavior.
J2
Table 4-1 – General Status LED Meaning
Color
Off Off
Green Steady On
Red Steady On
mDynamo Weatherized| Insert Secure Card Reader Authenticator | Installation and Operation Manual
Flashing Pattern
Page 19 of 27 (D998200657-100)
Meaning
The device is not receiving adequate power from
the host via the USB port.
The device is ready to read a card.
An operator is updating the firmware. On
completion, the device will reset, and the LED will
turn off briefly.