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GL505 User Manual

TRACGL505UM001 - 10 -

Figure 2. The 8 PIN connector on the GL505

Table 4. Description of 8 PIN Connections

Index Description Comment

1 CHARGER_IN External DC power input, 5V

2 NC Not connected

3 BB_RXD BB UART RXD

4 BB_TXD BB UART TXD

5 MCU_RESET MCU CHIP RESET SIGNAL

6 BKGD MCU CHIP BKGD SIGNAL

7 VDD_MCU_2V8

MCU POWER INPUT，2.8V

8 GND Power and digital ground

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