2 - Electrical Integration
mDynamo| EMV Contact Reader / Transaction Hub Module | Installation and Operation Manual
Page 13 of 27 (
D998200144-14
)
2.2
Shielding
MagTek recommends using earth-grounded shielded cables. The device itself has been tested by an FCC
lab for Class B radiated susceptibility and has no special shielding requirements. For details, see the FCC
information provided at the beginning of this document.
2.3
About Signal Connectors
mDynamo provides the following signal connections:
A
USB
port, labeled
J3
on the printed circuit board, must be connected to a host’s fully-powered
USB port to provide power to the device and bidirectional communication with the host. For details,
see section
An
Auxiliary UART
port, labeled
J8
and
UART
on the printed circuit board, can be used to connect
to an optional external contactless module or UART Encrypting IntelliHead with MagneSafe V5. For
details, see section
An
Auxiliary SPI
port, labeled
J7
and
SPI
on the printed circuit board, can be used to connect to an
optional external SPI Encrypting IntelliHead with MagneSafe V5. For details, see section
An
LED
connector, labeled
J2
and
LED
on the printed circuit board, can be used in solution designs
that need to provide an external status LED. For details, see section
2.4
USB Port [J3]
The USB port, labeled
J3
on the printed circuit board, must be directly connected to a host’s fully-
powered USB port to provide power to the device and bidirectional communication with the host. It is a
Micro-USB B receptacle designed to mate with a standard Micro-USB B connector found on
commercially available USB cables. Pinouts are shown in
. MagTek does not support
connecting multiple mDynamo devices simultaneously to the same host.
Figure 2-2 - Pinouts for mDynamo USB Port J3
Depending on usage, the device expects to draw up to 500mA at 5V from the USB port. The device itself
draws a maximum of 300mA and will draw additional current to drive devices connected to the Auxiliary
UART port and the Auxiliary SPI port.
