Chengdu Ebyte Electronic Technology Co.,Ltd.
E34-DTU (2G4H27) user manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co,;Ltd
12
Odd-even check
Support 8N1:no check
；
8E1:even-check
；
8O1:odd-check
；
Both are 8-bit data bits and 1-bit stop bits.
Air data rate
（
bps
）
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.
64kbps is the most recommended value
Transmitting power
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
FEC
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.
Transmission mode
Transparent transmission, and send-as-received fixed points, broadcasting is not supported
Wake Up Time
There is no direct relationship with the communication delay. If the customer needs low-power
applications, this option shall be adjusted as required to ensure the communication stability. This
parameter is self-adaptive and needs no attention from the user.
IO driven
By default, select the internal TTL signal drive mode
。
Station Address
Internal address of wireless data station, stations with the same address as those independent of Modbus
address can communicate with each other. This feature can be used to realize software filtering grouping
input range :0~65535, decimal number.
Frequency Channel
It is equivalent to the working frequency of wireless data transmission station. Each channel corresponds
to its different working frequency. Theoretically, different frequency channels cannot communicate with
each other.
8. Connection diagram in test and application
Summary of Contents for 2G4H27
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