Ebyte E90-DTU User Manual page 14

Chengdu Ebyte Electronic Technology Co,;Ltd
Parameter
Baud rate
Odd-even check
Air data rate（bps）
Transmitting power
FEC
Transmission mode
Wake Up Time
Station Address
Frequency Channel
Cipher
function
Cipher text set
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The serial port baud rate of a wireless data station at work，1200bps～115200bps。
Support 8N1:no check ；8E1:even-check；8O1:odd-check； Both are 8-bit data bits and 1-bit stop
bits.
Wireless communication rate, also known as air baud rate air rate high, data transmission speed,
transmission of the same data time delay is small, but the transmission distance will become shorter.
In order to ensure the working efficiency, it is recommended to use the maximum power. If the
transmitted power is reduced, the communication distance will become shorter and the required
current will be reduced
The lost or interfered data can be partially corrected by complex encoding, which can improve the
equivalent receiving sensitivity by about 3dBm. Turning off this function can reduce the
communication delay.
Fixed length transmission: automatic subcontracting in traditional wireless transmission mode, with
a maximum of 77 bytes per packet.
Continuous transmission: unlimited packet length, supporting wireless continuous transmission.
There is no direct relationship with the communication delay. If the customer needs low-power
applications, this option shall be adjusted as required. In the power-saving mode, the longer the
wake-up time, the lower the power consumption of the receiving end, and the greater the
communication delay.
Internal address of wireless data station, stations with the same address as those independent of
M odbus address can communicate with each other. This feature can be used to realize software
filtering grouping input range :0~65535, decimal number.
It is equivalent to the working frequency of the wireless data transmission station. Each channel
corresponds to its different working frequency. Theoretically, different frequency channels cannot
communicate with each other，If there are multiple groups of wireless data stations in the same area,
the communication frequency interval is suggested to be 2~5M Hz.
Only stations with the same ciphertext can communicate, and the secondary ciphertext can only be
written but cannot be read.
Radio ciphertext, input range :0 ~ 65535, decimal number.
E90-DTU (433C37) user manual
Description
13