About The General Status Led - Magtek mDynamo Installation And Operation Manual

4 - Operation
4.2

About the General Status LED

mDynamo's on-board General Status LED and the External LED Connector [J2] can be used to provide
feedback to operators and cardholders about the internal state of the device (see Figure 1-1). By default,
the device drives to match the General Status LED. However, custom software on the host the device
J2
is connected to may completely override the External LED behavior.
Table 4-1 shows how to interpret the colors and flashing patterns of the General Status LED, and the
behavior of an external LED if the host is not overriding the
Table 4-1 – General Status LED Meaning
Color
Off Off
Green Steady On
Red Steady On
mDynamo| EMV Contact Reader / Transaction Hub Module | Installation and Operation Manual
Flashing Pattern
Page 23 of 27 (D998200144-14)
behavior.
J2
Meaning
The device is not receiving adequate power from
the host via the USB port.
The device is ready to read a contact chip card.
An operator is updating the firmware. On
completion, the device will reset and the LED will
turn off briefly.