Frequency And Channel Numbers; Tx And Rx Fifo And Sub-Packing Method - Ebyte E90-DTU User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.

5.3 Frequency and channel numbers

Model No.
E90-DTU(400SL
37)
Note: In the same area when multiple data transceivers are communicating one to one at the same time , it is
recommended to set the channel spacing between each group of data transceivers at 2MHz or more.
5.4 Air data rate
Model
E90-DTU(400SL37)
Note: The higher the air data rate, the faster the transmission rate, the transmission distance is also closer; when the rate
meets the requirements , the lower air data rate, the better quality.
5.5 Current
Model
E90-DTU(400SL37)
Note: It is recommended to retain more than 50% of the current margin when selecting the power supply, which will help
the data transceiver to work steadily for a long time.

5.6 TX and RX FIFO and sub-packing method

Model No.
E90-DTU(400SL37)
Note:1. When the receiving data is more than a single packet capacity, the beyond part will be automatically assigned to
the second transmission until it is completed;
2. The data transceiver can not receive data which is more than the buffer capacity.
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11
Default Frequency Frequency Range
Hz
433.125M 410.125～493.125M
Default
bps
2.4k
TX current mA
12V
1100
Buffer
1000 bytes
Channel
Interval
Hz Hz
1M
Levels
0.3、1.2、2.4、4.8、9.6、19.2、38.4、62.5k
8
24V
586
Sub-packing method
Can be sub-packed to 32/64/128/240 byte each time
E90-DTU SL User Manual
Channel numbers
84，half duplex
Air data rate (bps)
bps
Standby current mA
12V 24V
50 27
via command