Ebyte E90-DTU User Manual

Also see for E90-DTU: User manual User manual User manual User manual User manual

Contents

Ebyte E90-DTU User Manual Manual pdf 5 page image

Ebyte wireless data transceiver E90-DTU series user manual. 53. Interface definition3.1. Power interfaceUsers can choose ⑥ DC power interface,using the power adapter supply with the interface of the 5.5mm outer diameter , 2.5mmdiameter ;Also choose the VCC and GND terminal power supply, only choose any one of the power supply is OK;E90-DTU can use 10 ~ 28V DC power supply, but it is recommended to use 12V or 24V DC power supply.3.2. RS232 interfaceThe E90-DTU can be connected to the device via RS-232 using the standard DB-9 interface.3.3. RS485 interfaceE90-DTU can connect the 485_A terminal and 485_B terminal with the device RS-485 A terminal and B terminal.Pin NO. Definition Function Description1 VCC Pressure line power interface, positive 10 ~ 28V DC, recommended 12V or 24V2 GND Pressure line power interface, negative The power supply negative pole is connected to the systemground and the housing3 485_B RS-485 interface, interface B The RS-485 interface B is connected to the device interface B4 485_A RS-485 interface, interface A The RS-485 interface A is connected to the device interface A