{ "mqtt":{ "topic":"/device-data/NQ-R04-TEST-003", "id":"sdt", "pw":"251327", "host_ip":"13.209.39.139", "port":32259 }, "port1":{ "path": "/dev/ttyMAX1", "baudrate":57600, "parity":1, "stopbits":0, "bytesize":8 }, "port2":{ "path": "/dev/ttyMAX0", "baudrate":57600, "parity":1, "stopbits":0, "bytesize":8 }, "port3":{ "path": "/dev/ttyMAX2", "baudrate":115200, "parity":1, "stopbits":0, "bytesize":8 }, "port4":{ "path": "/dev/ttyMAX3", "baudrate":115200, "parity":1, "stopbits":0, "bytesize":8 } }