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Item: 185730470329
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Product Name: 868MHz USB RJ45 to RS232 Wireless Transceiver Serial Data Long-Distance Transmission Module for PLC Relay Meter Reading Sensor Package inlcuded: 5 PCS 433M RS232 Wireless UART transceiver(Please select the version you need) Description: Working voltage: 4.8V-9V(2A Power Supply is Recommended); Interface : RS232 /USB Frequency: 868MHz Transmit power: -40~+20dBm; Receiver sensitivity: -114dBm; Operating temperature: -25℃~+75℃; Transparent transmission mode baud rate :1200 2400,4800,9600(Default),19200,38400,57600,115200; Open ground Transmission distance : 500M Size(without antenna): 80x50x31mm Weight(without antenna):50g For more information, please contact me Recommend to buy more than 2pcs!!! The three products of RS485/RS232/USB only have different interfaces and the same functions. Can communicate with each other, mixed use: RS485<->RS485, RS232<->RS232,USB<->USB, USB<->RS485, USB<->RS232, RS485<->RS232 How to use (>=2pcs): 1 2PCS,Module 1 and Module 2 send data to each other. 2 3PCS,Module 1 sends data, module 2 acts as a repeater (multiple repeaters can be used), and module 3 receives data; delay sending and receiving distance. 3 >=3PCS,One as master device, the other as will be as slave device. the way they work as well as wired RS485 bus. Master device transmit data, Slave devices all receive data.Any slave device transmit data, master device and the other slave devices can receive .When ever only allowed one device (master or slave) to transmit data. Application Wireless Meter Reading, Industrial Control, Wireless Sensor Network, Telemetry Equipment PTZ Camera Modbus modbus temperature sensor LED Controller RS485/RS232 Relay Remote control, remote measurement system; Wireless meter ; Smart Home,Home Automation ,Wiser Home; Access control ; Identification system ; Data collection; IT household appliance ; Intelligence household appliance; Baby monitoring system; Thermometer List of AT commands: This is a brief description of AT commands, please refer to the RT4AE01 AT Command Detailed Description manual for detailed descriptions Factory serial port parameters: 9600 8 N 1 Send AT+ENABLE=1 within three minutes after power on to enter the AT command configuration mode Configuration completed: send AT+ENABLE=0 to exit the AT command configuration mode 1 ID Query : AT+ID? Set : AT+ID=xxx (000-254) 2 Software version information Query : AT+INF? 3 working channels Query : AT+FREQ? Set : AT+FREQ=xxx(000-254) The frequency of data transmission is 430MHz+xxx*0.1MHz (xxx is the selected working channel) 4 baud rate Query : AT+BAUD? Setting : AT+BAUD=x(0-7) 0:1200 1:2400 2:4800 3:9600 (default) 4:19200 5:38400 6:57600 7:115200 5 parity bits Query : AT+PARITY? Setting : AT+PARITY=x(0-2) 0: No parity 1: Even parity 2: Odd parity 6 Transmit power Query: AT+POWER? Setting: AT+POWER=x(0-9) 0:-40dBm 1:-16dBm 2:-10dBm 3:-5dBm 4:0dBm 5:+5dBm 6:+10dBm 7:+15dBm 8:+18dBm 9:+20dBm 7 Factory reset Set: AT+RESET 8 Reboot: Settings: AT+REPOWER
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