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1、Frequency Band：433MHz，450MHz，470MHz etc ISM Frequency Band；

       2、Baud Rate：1200、2400、4800、9600、19200、38400bps；

       3、Transparent data transmission,transparent data interface used in transceivers is for meeting many standard or nonstandard                  user protocols. Any false data generated in air can be filtrated automatically (What has been received is exactly what has                      been transmitted)；

       4、Interface：USB（Suitable for PCs without a serial port）

       5、Small size, easy installation, easy to embed user equipment.

    AMR Automatic Meter Reading；

    Building automation, security, wireless monitoring and control of room equipment,Access Control System;

    Wireless alarm and security systems, Wireless Queuing machine and Wireless medical containers;

    Wireless POS, PDA wireless smart terminal ;

    Wireless data transmission, automatic data collection system;

    Wireless LED display, Responder and intelligent traffic;

    Converting RS-485 cable to wireless communication, such as PLC。 

1、The LED indicator light will glitter green continually while receiving data from air.

2、The LED indicator light will glitter red continuously when transmitting data into air after receiving from COM.

1 、USB driver installation and serial port search

     Open the "Keyilian communication user disk" in the KYL-220 folder to find the USB driver, double-click to install. Insert hardware after installation and find new hardware according to operation instruction. After installation , find the newly generated COMX in the port (COM and LPT) of the PC's device manager. (X indicates an Arabic number). This serial port is the front serial port.

2, Data transmission

     KYL-220 series products provide transparent data transmission interfaces, which can support users' various applications and protocols and achieve point-to-point, point-to-multipoint transparent transmission.KYL-220U can be used with our KYL-210 hybrid network to collect RS485 or RS232 terminal data. KYL-220 series products are provided 150 byte memory, so that at least 150 BYTES can be transmitted per frame, while KYL-220 adopts FIFO (first in, first out) data transmission mode to meet user's requirements for large data packets (infinite length) transmission each time.