Pin | 信 号 定 义 | ||
RS-232 | RS-422 | RS-485 | |
1 | DCD | TX- | DATA- |
2 | RX | TX+ | DATA+ |
3 | TX | RX+ | NC |
4 | DTR | RX- | NC |
5 | GND | GND | GND |
6 | DSR | RTS- | NC |
7 | RTS | RTS+ | NC |
8 | CTS | CTS+ | NC |
9 | RI | CTS- | NC |
10 | NC | NC | NC |
非常好我支持^.^
(14) 77.8%
不好我反对
(4) 22.2%
( 发表人:admin )