ALGIZ 8X Back docking connector

19 Pin Expansion Port
 Pin No.  Description  Pin No.  Description
1 Pogo_PWR 2 3.3V Out (max 3A)
3 Pogo_PWR 4 Pogo_PWR
5 5V_OUT (max 2A) 6 DET
7 TX 8 GND
9 RX 10 GND
11 GND 12 USB D-
13 USB D+ 14 GND
15 CTS 16 DETECT_POGO
17 GND 18 RTS
19 DET

CTS/RTS -> Serial port flow control

DET -> Pogo pin detect pin

Pogo_PWR -> DC 19V in for charging

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