Chengdu Ebyte Electronic Technology Co., Ltd.
E32-DTU(433L33)-V8 User Manual
Copyright ©2012–2022
，
Chengdu Ebyte Electronic Technology Co., Ltd.
8
4
Interface definition
4.1 Power interface
Users can choose
⑥
DC power interface,using the power adapter supply with the interface of the 5.5mm outer
diameter , 2.5mm diameter ;
Also users can choose the VCC and GND terminal power supply from
②
, both are optional
；
8 ~ 28V DC power supply,
i
t is recommended to use 12V or 24V DC power supply for E32-DTU.
4.2 RS232
The E32-DTU can be connected to the device via RS-232 using the standard DB-9 interface.
4.3 RS485
E32-DTU can be connected to the 485_A terminal and 485_B terminal from
②
with the RS-485 A terminal
and B terminal of other device respectively.
Pin NO.
Definition
Function
Description
1
VCC
Crimping power interface,
positive
8 ~ 28V DC, recommended 12V or 24V
2
GND
Crimping power interface,
negative
The power supply negative pole is connected to
the system ground and the housing
