JiZhuo
Technology
EZ50 Wireless Serial Radio Modem
SHENZHEN JIZHUO TECHNOLOGY CO., LTD TEL
：
0755-83304518 83308451
Tech:0755-61319411 61319410 WEB: http://www.jizhuo.com
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EZ50 wireless module, the use of ISM frequency band, without application frequency;
can be set to 8 communication channels, transmit power of 50mW (17dB), high receiver
sensitivity-121dbm, size 110mm * 85mm * 25mm (without antenna base) , a large number of
the billing system to use, very convenient for users to embedded wireless systems.
EZ50 the use of transparent transmission, in order to ensure the reliability and stability
of the user's system, plus the transmission checksum or CRC checksum error detection mode,
the error data retransmission. Transceiver module buffer of 512 bytes, means that users can
be in any state 512 bytes of data transfer , when the speed is greater than the serial port is set
to air rate, is theoretically unlimited length can send information packets, but does not
recommend users to send long data packets, the proposed length of each packet data between
60 ~ 100B, generally not longer than the 120B, and recommended user program using the
ARQ mode, the error data packets retransmission. As follows:
If the actual error rate 10-4, users need to send 1KB about 10000bit information, if the
1KB data as a packet, sent at least theoretically, there will be a data error in the receiver,
then the 1KB data can never be received correctly. If it is divided into 10 packages, each
package 100B, then send 10 packets, the packets according to a probability of only 1 error,
the error in the form of a packet retransmission by ARQ 1, although it took more than 1
packet and the efficiency decreased by about 10%, but it can guarantee all the information is
correctly received.
EZ50 set parameters, the market is no longer used wireless modules used in the
traditional way to change the parameters of the jumper, causing long-term use because it
brings bad, options less dynamic change is not easy, a lot of inconvenience. EZ50 using the
serial port setting parameters easy and quick, easy set refers to the chip embedded in the
user program and operating software in the background. Meanwhile module
1200/2400/4800/9600/19200/38400bps six kinds of rate and 8 frequencies; provide UART /
