Specifications

Shenzhen Geshem Technology
Speaker port（CON44）
Item
Definition
Nature
Description
1
RP
Output
Right channel +
2
RN
Output
Right channel -
3
LN
Output
Left channel -
4
LP
Output
Left channel +
Infrared human detection（CON40）
Item
Definition
Nature
Description
1
3.3V
Output
3.3V
2
IR-DET
Output
Infrared detection
3
GND
Ground wire
Ground wire
4
MIC-
5
MIC+
RS232（CON39）
Item
Definition
Nature
Description
1
3.3V
Output
3.3 V output
2
TX3
Output
Data
3
RX3
Output
Data
4
GND
Ground wire
Ground wire
RS232（CON47）
Item
Definition
Nature
Description
1
3.3V
Output
3.3V output
2
TX4
Output
Data
3
RX4
Output
Data
4
GND
Ground wire
Ground wire
USB port（CON28,29,30,24）
Item
Definition
Nature
Description
1
5V
Output
5V output
2
DM
Output
Data
3
DP
Output
Data
4
GND
Ground wire
Ground wire
HDMI_In port（CON15）
Item
Definition
Nature
Description
1
VCC
Power supply
5V output
2
PWREN
Output
Enable pin
3
GND
Ground wire
Ground wire
4
GND
Ground wire
Ground wire
5
D0N
Output
Data