Introduction; Brief Introduction; Features - Ebyte E95-DTU User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.

1. Introduction

1.1. Brief Introduction

E95-DTU (433C30-485) has a variety of transmission methods, works in the (425 ~ 450.5Mhz) frequency
band (default 433Mhz), the radio provides a transparent RS485 interface, uses a plastic shell, rail-type installation
structure, supports 8 ~ 28V ( DC ) voltage input. It has the advantage of strong anti-interference ability.
E95-DTU (433C30-485) is a digital radio that adopts ultra-narrowband modulation technology. Due to its
advanced modulation method, the communication distance and communication stability are greatly improved. On
the basis of the original built-in power amplifier ( PA ) and low noise amplifier ( LNA ), the maximum transmit
power reaches 1W and the receiving sensitivity is also improved to a certain extent. The overall communication
stability is compared with no power amplifier and low noise amplifier. Noise amplifier products have been greatly
improved.
Different from traditional digital radios, E95-DTU (433C30-485) is specially developed for Modbus
application scenarios. The feature of unlimited package length can replace communication cables and is the most
worry-free choice for Modbus wireless upgrades. The radio works in the 433MHz frequency band, and the
communication distance can reach 3km . As a communication medium, wireless digital radio has a certain scope of
application like optical fiber, microwave and open wire: it provides real-time and reliable data transmission of
monitoring signals in private networks under certain special conditions, with low cost, installation and maintenance.
It has the characteristics of convenience, strong diffraction ability, flexible network structure and long coverage. It
is suitable for occasions such as many and scattered points and complex geographical environment. It can be
connected with PLC, RTU, rain gauge, liquid level gauge and other data terminals.
As a communication medium, wireless digital radio has a certain scope of application like optical fiber,
microwave and open wire: it provides real-time and reliable data transmission of monitoring signals in private
networks under certain special conditions, with low cost, installation and maintenance. It has the characteristics of
convenience, strong diffraction ability, flexible network structure and long coverage. It is suitable for occasions
such as many and scattered points and complex geographical environment. It can be connected with PLC, RTU,
rain gauge, liquid level gauge and other data terminals.

1.2. Features

Support high-speed continuous and uninterrupted transmission, data is not divided into packets,
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unlimited data packet length, adapt to Modbus protocol;
It is optimized for Modbus and can directly replace the RS485 cable;
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Simple and high-efficiency power supply design, support power adapter or pressure line method,
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support 8 ~ 28V power supply;
The transmit power is up to 1W , and it can be adjusted in multiple levels, and all technical

indicators meet European industrial standards;
Adopt temperature compensation circuit, the frequency stability is better than ± 1.5PPM ;

Working temperature range : -40 ℃ ～ +85 ℃ , suitable for various harsh working environments,
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E95-DTU(433C30-485) User Manual
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