Introduction; Brief Introduction; Certificate - Ebyte E90-DTU User Manual

Chengdu Ebyte Electronic Technology Co,;Ltd

1. Introduction

1.1. Brief Introduction

E90-DTU (433L37) is a data transmission station that adopts extremely advanced ultra-narrow band modulation
technology. On the original basis, power amplifier (PA) and low noise amplifier (LNA) are built in, so that the maximum
transmitting power reaches 5w and the receiving sensitivity is also improved to a certain extent. Compared with the
products without power amplifier and low noise amplifier, the overall communication stability is greatly improved.
Different from analog FM stations and modems, digital radio provides transparent RS232/RS485 interface.
The station works in 433MHz frequency band and the communication distance can reach 20km. Wireless digital
radio as a medium of communication, as well as optical fiber, microwave, open wire, there is a certain scope of
application: it provides some special conditions, private network monitoring signals in real-time and reliable data
transmission, low cost, easy installation and maintenance, diffraction capability is strong, flexible network structure, the
coverage is far characteristic, suitable for some more and occasions, such as dispersion and complex geographical
environment with PLC, RTU, rain gauge, level gauge and other data terminal is connected.

1.2. Certificate

E90-DTU has obtained the "radio transmission equipment model approval certificate", whose approval code is ：
CMIIT ID:2017FP5780。
E90-DTU has obtained the "explosion-proof certificate", whose number is: test no. 201711000975
E90-DTU has obtained the "electrostatic surge detection report" issued by China testing institute, whose number is
CNEx18.1461.
E90-DTU has obtained the "appearance design patent certificate", and its patent number is ZL 2016 3 0501980.3.
E90-DTU has obtained the "utility model patent certificate", and its patent number is ZL 2016 2 1410691.3.
E90-DTU has obtained the "CE certificate" (mandatory eu certification), whose verification number is
CCISE180514601V.
E90-DTU has obtained an "FCC certificate" with the ID of 2ALPH-E90-DTU.
E90-DTU has obtained the "RoHS certificate" (mandatory EU environmental protection certification), and its report
number is DTI201807025245.
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E90-DTU (433L37) user manual
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