SHB-950-COM
来自ARM Wiki
COM1:
信号名称 Pin Pin 信号名称 DCD 1 2 DSR SIN 3 4 RTS SOUT 5 6 CTS DTR 7 8 RI GND 9 10 GND
当COM2设置为RS232/422/485时,其管脚定义如下:
RS485 RS422 RS232 Pin Pin RS232 RS422 RS485 DATA- TX- DCD 1 2 DSR NC NC DATA+ TX+ RXT 3 4 RTS NC NC NC RX+ TXD 5 6 CTS NC NC NC RX- DTR 7 8 RI NC NC GND GND GND 9 10 GND GND GND
- COM2跳线功能设置(J1,J2,J3):
COM2 RS232(默认) COM2 RS422 COM2 RS485 J1 1-3 2-4 J1 3-5 4-6 J1 3-5 4-6 J2 1-3 2-4 J2 3-5 4-6 J2 3-5 4-6 J3 1-2 J3 3-4 J3 5-6 7-8