Power - Technologic Systems TS-5700 User Manual

TS-5700 User's Manual Technologic Systems http://embeddedARM.com/

3. Power

The TS-5700 requires regulated 5VDC at 800 mA (typical maximum). When running the Linux OS, it will drop to
about 300 mA during low usage. A quick release screw-down terminal block for the 5V power and power GND
connections is provided for easy connection to an external power supply.
When power is first supplied to the TS-5700, the board mounted LED is immediately turned on under hardware
control. Once the processor begins execution, the LED is turned off. The LED then turns on then off to provide a
characteristic blink during execution of POST. If the LED does not turn on at all, the most likely problem is the
power supply. Check that the +5V and GND connections are not reversed. A diode protects the board against
damage in such a situation, but it will not run.
Please note that supply voltages over 6 VDC may damage the TS-5700.
Be sure to use a regulated 5 VDC power supply, preferably with current limiting to 3 to 5 Amps. If using a PC
power supply that may be capable of supplying 20 Amps or more, it is possible to do irreversible damage if the
polarity on the power leads is reversed.
4 5/2009