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Technologies
STAD156WT-15 Equipment Manual
Release 01/2019
6
2
Interface Description
2.1 Serial Ports
STAD070WT-11 is integrated with 4 serial ports. UART1, UART2, UART3,
UART0 are RS-232 level converted, All have been treated with anti-static
treatment.
UART4 is RS232 and RS485 hardware reuse
(
UART3,UART4 is either for
RS232, either for RS485, they can’t be used at the same time
)
.
Serial port definition as table below,
232 Interface:
Interface
Pin
Definition
Device Node
Level
UART1
(J13)
1
RX1
TtyS1
RS232
2
TX1
3
GND
UART2
(J14)
1
RX2
TtyS2
RS232
2
TX2
3
GND