Ebyte E70-433T S Series User Manual page 24

Chengdu Ebyte Electronic Technology Co,;Ltd
00H~1FH, 431~446.5MHz，（Default）04H（433M）
7
0
1
6
0
0
0
0
1
1
1
1
5
OPTION 3
0
1
2
0
1
1
0
0
1
1
The binary bit of the byte
The specific value
(configured by user)
Meaning
Corresponding hexadecimal
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Fixed transmission (similar to MODBUS）
Transparent transmission mode (Default）
Fixed transmission mode
5 4 wireless wake-up time
0 0
0 1 1000ms(Default)
1 0
1 1
0 0
0 1
1 0
1 1
FEC switch
Turn off FEC
Turn on FEC (Default)）
IO drive mode
TXD and AUX push-pull outputs, RXD pull-up inputs
TXD、AUX open-collector outputs, RXD
open-collector inputs
0 transmission power (approximation)
0 30dBm (Default)
27dBm
1
24dBm
0
21dBm
1
For example: The meaning of No.3 "SPED" byte：
7 6
0 0
UART parity bit 8N1
1




500ms
1500ms

2000ms
2500ms
3000ms

3500ms
4000ms





5 4
0 1
UART baud rate is
9600
E70-433TxxSx user manual
When it is 1, the first three bytes of each user data
frame can be used as high/low address and
channel. The module changes its address and
channel when transmitting. And it will revert to
original setting after the process is completed.
It is transparent transmission under continuous
mode.
This parameter is only valid for mode 4, 6.
For mode 6, the wake-up time will affect the WOR
cycle of the module, and affect the power
consumption.
For mode 4, the wake-up time decides the number
of wake-up code before transmission so as to
ensure the wake up the module in mode 6.
Generally, mode 4 and 6 shall be used jointly and
the wake-up time on both modules shall be the
same.
After turn off FEC, the actual data transmission
rate increases while anti-interference ability
decreases. Also, the transmission distance is
relatively short.
Both communication parties must keep on the
same pages about turn-on or turn-off FEC.
This bit is used to the internal pull-up resistor. It
also increases the level's adaptability in case of
open drain. But in some cases, it may need external
pull-up resistor.
The external power must ensure that the ability of
current output is more than 80mA and the power
supply ripple is within 100mV.
Low power transmission is not recommended due
to its low power supply efficiency.
3 2
1 0
Air data rate is 2.4k
A
1 0
1 0
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