Ebyte E92-DTU, User Manual, Page: 4 / 11

Chengdu Ebyte Electronic Technology Co.,Ltd. E92-DTU(2G4HD12) User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
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1 Overview
1.1 Brief Introduction
E92-DTU (2G4HD12) is a high-quality wireless bridge for RS485 with IP67 protection capability, which can be
applied to industrial occasions with complex electromagnetic environment and a variety of outdoor environments. This
bridge has the characteristics of low delay, full duplex, automatic frequency hopping, high-speed continuous transmission,
etc. Its strong anti-interference ability makes wireless communication more stable and reliable.
E92-DTU (2G4HD12) is a point-to-point, frequency hopping, continuous transmission, duplex wireless RS485
bridge, working in the free 2.4G frequency band around the world. The transmission power of the bridge is 12dBm,
supports transparent transmission, provides RS485 interface, and supports 8~28 V voltage input. Wireless transceiver has
CRC check, FEC (forward error correction), packet loss retransmission and other technologies, plus automatic frequency
hopping technology, so even in the case of sudden interference, it is almost unaffected, greatly improving the reliability
of wireless transmission And transmission distance. The radio has a two-way continuous transmission function, without
paying too much attention to the sub-packet length, and can send data through the interface at any time.
1.2 Features

Using automatic frequency hopping technology, it has strong anti-interference ability and stable communication;

Support two-way continuous data transmission function;

4-level port protection capability; IP67 protection;

Simple and high-efficiency power supply design, support power supply configuration or crimping mode, support 8
~ 28V power supply;

The transmit power can reach up to 12dbm, and all technical indicators meet European industrial standards;

Working temperature range: -40
℃～
+85
℃
, can adapt to various harsh working environments, real industrial grade
products;

Compact size, easy installation, good heat dissipation; perfect shielding design, good electromagnetic compatibility,
strong anti-interference ability;

Multiple protection functions such as power reverse connection protection, over-connection protection, antenna
surge protection, etc., greatly increase the reliability of the radio;

Simple and easy to use, wireless communication can be carried out after factory power-on and connection is
successful;

Built-in hardware watchdog and precise time layout. Once an exception occurs, the module will automatically
restart and continue to work according to the previous parameter settings.