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C335 Series Edge Computing Gateways | User Manual
17
1.6.2
Right side view
Item No.
Description
1
Reset button
2
Micro SD & Micro SIM card slots
3
12V-48V DC power terminal
4
Restore button
1.6.3
Serial port
Pinout of the serial port:
No.
Signal
Node
Serial mode
LED indicator
1
GND1
/dev/ttyO1
RS232 or
RS485 (default)
485_1
2
RS232_TX / RS485_1_B
3
RS232_RX / RS485_1_A
4
GND2
/dev/ttyO2
RS485
485_2
5
RS485_2_B
6
RS485_2_A
7
GND3
/dev/ttyO3
RS485
485_3
8
RS485_3_B
9
RS485_3_A
10
GND4
/dev/ttyO4
RS485
485_4
11
RS485_4_B
12
RS485_4_A
Pin 1
Pin 12
1
2
3
4