3通道RS-232扩展板(用于I-7188XB,I-7188XG,I-7188EX,I-7188EG,μPAC-7186EG) RS-232端口:3 COM3:TxD, RxD, RTS, CTS, GND COM4:TxD, RxD, RTS, CTS, GND COM5:TxD, RxD, RTS, CTS, GND 兼容16550 内部FIFO:16 bytes for each COM port 传输速率:最大115.2K bps 隔离:无 尺寸:64mm * 38mm 功耗:0.7W X505 3-Port RS-232 ( 5-Pin ) X505 CR 3-Port RS-232 ( 5-Pin ) (RoHS)