[giaban]Call: 090.2006.139[/giaban] [tomtat] ADAM-4561 1-port Isolated USB to RS-232/422/485 Converter [/tomtat] [mota] Full compliance with USB V1.1 specifications RS-232/422/485 port supported Transmission speed up to 115.2 kbps Isolation protection 3000 VDC provided Automatic RS-485 data flow control No external power supply necessary; the hub derives its power from the USB port Plug & Play installation No additional IRQs or I/O ports required Hot swap function supported Quý khách cần hàng để sửa chữa, bảo trì vui lòng liên hệ: 090.2006.139 [/mota]