212Boards
© Tibbo Technology Inc.
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Setup button
5.5.1.1
Power Arrangement
The EM1202EV-RS and "-TM" devices have "12V"-to-3.3V switching regulator
onboard. The power is supplied through the power jack. The power jack of the
EM1202EV accepts "small" power connectors with 3.5mm diameter. Use APR-P0011,
APR-P0012, or APR-P0013 power adaptor supplied by Tibbo or similar adaptor with
12V nominal output voltage. Adaptor current rating should be at least 500mA. On
the power jack, the ground is "on the outside", as shown on the figure below.
Stabilized 3.3V power used by the EM1202EV-RS and "-TM" is also available on pin
12 of the TTL interface connector. This can be used to provide power to an
attached serial device.
The EM1202EV-TS board does not have "12V"-to-3.3V regulator at all. 3.3V power
required for board operation must be supplied by the external device through pin 12
of the TTL interface connector.
5.5.1.2
Ethernet Port
Ethernet port of the EM1202EV is of 10/100BaseT type.
Connector is of RJ45 type, pin assignment is as follows:
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