
EM-1220 Hardware User’s Manual EM-1220-DK Functionality
EM-1220-DK Development Board
The EM-1220 Development Kit is a well-designed PCB board with complete layout. The kit helps
users evaluate, develop, and integrate the EM-1220 Embedded Module into their systems and
applications. Simply combine the EM-1220 Embedded Module with the Development Kit to start
porting the relevant software, and create a solution for the applications you wish to implement.
Refer to the following picture for the basic layout of the EM-1220-DK.
Combining the EM-1220-DK with the Embedded Module
Insert the EM-1220 Embedded Module vertically onto the EM-1220-DK. Note that the Pin marked
“J1” on the Embedded Module must be matched with the Pin marked “J1” on the EM-1220-DK;
and the Pin marked “J2” on the Embedded Module must be matched with the Pin marked “J2” on
the EM-1220-DK. Be careful when installing the board to avoid damaging the pins.
LED Indicators
The following table explains the function of the LED indicators located on the EM-1220-DK.
LED Name LED Color LED Function
Ready Green Power is on and system functions normally.
Green Serial port 1, 2 is transmitting data.
P1, P2 (Tx)
Off Serial port 1, 2 is not transmitting data.
Yellow Serial port 1, 2 is receiving data.
P1, P2 (Rx)
Off Serial port 1, 2 is not receiving data.
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