Interface Definition; Power Interface; Rs232; Rs485 - Ebyte E90-DTU User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.

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, it is recommended to use 12V or 24V DC power supply for E90-DTU.

4.2 RS232

The E90-DTU can be connected to the device via RS-232 using the standard DB-9 interface.

4.3 RS485

E90-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.
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E90-DTU（2G4L27）User Manual
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