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4端口RS-232/422/485通讯模块 ◆通讯接口:COM1, COM2:RS-232/422/485 COM3, COM4:RS-232 ◆波特率:50 bps ~ 230.4 kbps ◆数据信号:RS-232:TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND RS-422:Tx+, Tx-, Rx+, Rx-,RS-485: Data+, Data- ◆FIFO:128 bytes ◆数据流控:RTS/CTS, Xon/Xoff ◆保护(For COM1,COM2):ESD保护:15KV ◆EFT保护:2,500VDC ◆隔离保护:2,500VDC ◆保护(For COM3,COM4):ESD保护:15KV |
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