VT-M2M-C335L
10
/
14
Pin
Description
Remarks
1
RS485_A
IO
2
RS485_B
IO
3
GND
3.2.5 Boot Configuration
000x:
Boot from SD/MMC 111x: Boot from EMMC
3.2.6 LED
PWR LED: lightindicatesystem power OK(main power up);offindicate system power turn off
SS LED: User can define by themself.
TX LED: when UART2 send data, TX1 can blink; when UART4 send data, TX2 can blink.
RX LED: when UART2 receive data, RX1 can blink; when UART4 receive data, RX2 can blink.
3.2.7 DEBUG
CONN, 3.5mm audio con, User can show the debug message and use key board input
debug command. It’s RS232 level.
3.2.8 Renew button
Renew button: long press this button will restore the factory setting, the long press time can be
setting by user
Boot
Configuration
