User's Manual

4. Power Supply Circuit (U12, U16)
Power is supplied to RF Power AMP(U13) by turning input DC+5V power into DC+4V through
Regulator(U12) D-Sub connector(CON2). This is also used for input power of U16 which makes
DC+3.0V power.
Regulator(U13) turns DC+4V power into DC+3.0V to supply power to MG2455 ZigBee Chip(U11),
RS-232C Transceiver Chip(U15), EEPROM(U14) and other circuits
5. EEPROM(U14)
Saves various channel information and Parameter required in operating to TD-2400MD.