Chengdu Ebyte Electronic Technology Co.,Ltd. E90-DTU(xxxSLxx-ETH)_V2.0 User Manual
Copyright ©2012–2023，Chengdu Ebyte Electronic Technology Co.,Ltd.
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2.3 Hardware connection
Connecting the antenna to the E90 radio with power on (DC: 8 to 28V， DC12V/24V, 1A is recommended),
RS485 connection, network cable connection:
Up: "Gateway radio" is
connected
Down: "Serial Radio"
connection
RS-485 connection for
Serial Radio
RJ45 cable connection for
Gateway radio
2.4 RF setting
2.4.1 Configuring "Serial Radio E9x-DTU(xxxSLxx)"
Step 1: Power on and connect the USB to RS-485 serial cable (serial cable A to radio 485_A and serial cable B
to radio 485_B);
Step 2: check if the radio is working in configuration mode, if not in configuration mode, please enter
configuration mode according to the configuration dip switch in the figure below;
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