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=== J940 connector ===
This connector is used mainly to connect via RS485 (UART1) with other devices<br>
The next table show J940 connector information:
{| cellspacing="1" cellpadding="1" border="1" width="200"
|-
| Pad:
| Connecto to:
|-
| 1
| PWR_GND
|-
| 2
| PWR_5V
|-
| 3
| PWR_9V
|-
| 4
| RS485_A
|-
| 5
| RS485_B
|}