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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
8 ~ 28V DC power supply,
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
and B terminal of other device respectively.
Pin NO.
Definition
1
VCC
2
GND
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t is recommended to use 12V or 24V DC power supply for E32-DTU.
i
Function
Crimping power interface,
positive
Crimping power interface,
negative
E32-DTU(433L33)-V8 User Manual
, both are optional；
②
with the RS-485 A terminal
②
Description
8 ~ 28V DC, recommended 12V or 24V
The power supply negative pole is connected to
the system ground and the housing
8
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