keyboard top
1.........18
3: Gnd (RJ45 pin-8)
6: Gnd (RJ45 pin-8)
12: box Rx/phone Tx/PinFinder Rx (RJ45 pin-3)
13: box Tx/phone Rx/PinFinder Tx (RJ45 pin-2)
14: +charge
15: +charge
16: Gnd (RJ45 pin-8)
17: +battery
18: +battery
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4: USB D- (white)
5: USB D+ (green)
6: USB power (RJ45 pin-1)
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