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HOLUX GR-231 Bluetooth GPS Receiver Manual
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3) External active antenna connector,
see Fig. 5。
Connector type: MCX.
Active power voltage: 3.0V
(Fig.5)
4) Power Jack & Data Port, see Fig. 6。
Jack type: Mating face of 5 pin Mini USB Type B female。
Pin definition see table 1。
(Fig.6)
Table 1
Pin Pin Name Signal and description
1 GND Signal ground, Battery charging ground.
2 VOUT Unregulated voltage out: 3.6 V max 100mA.
3 TXD
Transmit Data. From organizer to peripheral.(Voltage Level is 3.3V ~
5.0V).
4 RXD
Receive Data. Form peripheral to organizer.(Voltage level is 3.3V ~
5.0V).
5
VCHARG
Positive terminal of DC adaptor that powers the internal charging
circuit of Li-Ion battery. The approved power supply is 5.0V +/-
5%@1A.
1 5