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

Data transceiver

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Chengdu Ebyte Electronic Technology Co., Ltd.

Interface definition

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；

It can also be powered by ⑤ VCC terminal and ④ GND terminal, just choose any one of the power supply

modes;

8 ~ 28V DC power supply, it is recommended to use 12V or 24V DC power supply for E90-DTU.

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

E90-DTU can use ②485_A terminal and ③485_B terminal to connect RS-485 A terminal and B terminal of the

device respectively.

Pin NO.

Definition

485_A

Function

RS-485 interface， A interface

E90-DTU(400SL22P)User Manual

Description

The RS-485 interface A is connected to the device

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400sl22p