Chengdu Ebyte Electronic Technology Co,;Ltd
E30-170T27D user manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co,;Ltd
15
1
ADDH
High address byte of module
（
the default 00H
）
00H-FFH
2
ADDL
Low address byte of module
（
the default 00H
）
00H-FFH
3
SPED
7
6
UART parity bit
UART mode can be different between
communication parties
0
0
8N1 (default)
0
1
8O1
1
0
8 E1
1
1
8N1 (equal to 00)
5
4
3
TTL UART baud rate
（
bps
）
UART baud rate can be different between
communication parties
The UART baud rate has nothing to do with
wireless transmission parameters & won’t
affect the wireless transmit / receive features.
0
0
0
1200
0
0
1
2400
0
1
0
4800
0
1
1
9600 (default)
1
0
0
19200
1
0
1
38400
1
1
0
57600
1
1
1
115200
2
1
0
Air data rate
（
bps
）
The lower the air data rate, the longer the
transmitting distance, better anti-interference
performance and longer transmitting time
The air data rate must keep the same for both
communication parties.
0
0
0
1k
0
0
1
2k
0
1
0
5k (default)
0
1
1
8k
1
0
0
10k
1
0
1
15k
1
1
0
20k
1
1
1
25k
4
CHAN
7
6
5
reserved
Write 0
Communication channel
00H-FFH, correspond to 148~173.5MHz
4 ~ 0, channel (CHAN *0.1M) , default DCH (170MHz)
5
OPTIO
N
7
Fixed transmission enabling bit
（
similar to MODBUS
）
In fixed transmission mode, the first three
bytes of each user's data frame can be used as
high/low address and channel. The module
changes its address and channel when
transmit. And it will revert to original setting
0
Transparent transmission mode
1
Fixed transmission mode
