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Serial port server/ Ethernet
EBYTE NB144 Isolated 4-Channel Serial Server RS232/422/485 RJ45 Modbus Gateway TCP/UDP/MQTT AT Command Build-in Watchdog
$59.95Ebyte NB144 industrial serial server Four-serial device server RS232/422/485 to Ethernet serial port Modbus gateway IoT module [Interface signal]：RS485/RS422/RS232 [Baud rate]：2400~115200bps (default 115200) [Product size]：198x109x26.5mm (LxWxH) [Installation method]：positioning hole installation...