EBYTE E96-DTU 400SL30-485 Wireless Modem User Manual

User Manual for EBYTE models including: E96-DTU, 400SL30-485, Wireless Modem, E96-DTU Wireless Modem, E96-DTU 400SL30-485 Wireless Modem

E01-2G4M27D 产品规格书 v1.0

Wu Avalon

E01-2G4M27D 产品规格书 v1

E96-DTU(400SL30-485)

File Info : application/pdf, 22 Pages, 990.12KB

E96-DTU--400SL30-485 UserManual EN V1.1-www.s-e.hu

E96-DTU(400SL30-485)

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E96-DTU(400SL30-485) User Manual

Contents
1 Introduction........................................................................................................................................................4 1.1 Brief Introduction........................................................................................................................................4 1.2 Features....................................................................................................................................................... 4
2 Quick Start......................................................................................................................................................... 5 3 Installation Dimensions......................................................................................................................................7 4 Technical Index..................................................................................................................................................7
4.1 General Specifications................................................................................................................................ 7 4.2 Frequency Range and Number of Channels................................................................................................8 4.3 Transmit Power Level................................................................................................................................. 8 4.4 Air Speed Class........................................................................................................................................... 8 4.5 Sending and Receiving Length and Subcontracting Method......................................................................8 5 Detailed Function...............................................................................................................................................9 5.1 Fixed-point Transmission (Hexadecimal)...................................................................................................9 5.2 Broadcast Transmission (Hexadecimal)................................................................................................... 10 5.3Broadcast Address......................................................................................................................................10 5.4Listening Address...................................................................................................................................... 10 6 Product selection..............................................................................................................................................10 6.1Transparent Transmission Mode (Mode 0)................................................................................................11 6.2WOR Mode (Mode 1)................................................................................................................................ 11 6.3Configuration Mode (Mode 2)................................................................................................................... 11 6.4Deep Sleep Mode (Mode 3)....................................................................................................................... 12 7 Register Read and Write Control.....................................................................................................................12 7.1Instruction Format......................................................................................................................................12 7.2Register Description...................................................................................................................................13 7.3Factory Default Parameters........................................................................................................................16 8 Relay Networking Mode Use...........................................................................................................................16 9 Relay Networking Mode Use...........................................................................................................................17 10 Program the Radio......................................................................................................................................... 18 11 Related Products............................................................................................................................................ 19 12 Precautions for Use........................................................................................................................................ 20

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E96-DTU(400SL30-485) User Manual

13 Important Statement.......................................................................................................................................20

Revision history.................................................................................................................................................. 21

About us.............................................................................................................................................................. 21

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E96-DTU(400SL30-485) User Manual

Disclaimer
EBYTE reserves all rights to this document and the information contained herein. Products, names, logos and designs described herein may in whole or in part be subject to intellectual property rights. Reproduction, use, modification or disclosure to third parties of this document or any part thereof without the express permission of EBYTE is strictly prohibited.
The information contained herein is provided "as is" and EBYTE assumes no liability for the use of the information. No warranty, either express or implied, is given, including but not limited, with respect to the accuracy, correctness, reliability and fitness for a particular purpose of the information. This document may be revised by EBYTE at any time. For most recent documents, visit www.ebyte.com.

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1 Introduction

E96-DTU(400SL30-485) User Manual

1.1 Brief Introduction

E96-DTU (400SL30-485) is a wireless data transmission radio station that adopts military-grade LoRa modulation technology. It has a variety of transmission methods. It works in the frequency band (410.125MHz 493.125MHz) (default 433.125MHz). The radio provides a transparent RS485 interface. Adopt plastic shell, guide rail type installation structure, support AC 85265V(110V) voltage input. LoRa spread spectrum technology will bring longer communication distance, and has the advantage of strong anti-interference ability.
As a communication medium, wireless data transmission station 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 Convenience, strong diffraction ability, flexible network structure, and long coverage. It is suitable for many and scattered locations and complex geographic environments. It can be connected with PLC, RTU, rain gauge, level gauge and other data terminals.
1.2 Features

The latest LoRa technology is adopted, which is farther than traditional LoRa digital radio stations and has more powerful performance;
With data encryption, the packet length can be set;
Adopt flame-retardant plastic shell and guide rail type installation structure, which is convenient and efficient to install
Hidden buttons are used to switch working modes to avoid false triggers, and the equipment is more reliable in operation;
Simple high-efficiency power supply design, support power supply configuration or line pressure mode,
support AC 85265V(110V) power supply;
The transmit power is up to30dBm, and supports multi-level adjustment, and all technical indicators meet industrial standards;
Support Modbus protocol transmission;
Support LBT function, the radio station automatically waits for transmission according to the current environmental noise intensity. Greatly improve the communication success rate of the radio station in harsh environments;
Support wireless sending of command data packets, remote configuration or reading radio station parameters;
Support communication key function, effectively prevent data from being intercepted;
Multi-level relay networking can be realized, effectively extending the communication distance, and realizing ultra-long-distance communication;
Using temperature compensation circuit, the frequency stability is better than ±1.5PPM; Operating temperature range: -40 +85, adapt to various harsh working environments, real industrial
grade products;

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E96-DTU(400SL30-485) User Manual

Multiple protection functions such as power reverse connection protection, over-connection protection, antenna surge protection, etc., greatly increase the reliability of the radio;
The communication port and power interface adopt isolation and high protection;
Powerful software function, all parameters can be set by programming: such as power, frequency, air speed, address ID, etc.;
Built-in watchdog, and accurate time layout, once an abnormality occurs, the radio will automatically restart, and can continue to work according to the previous parameter settings.

2 Quick Start

You need to prepare two E96-DTU (400SL30-485)

First install the antenna for the digital radio, and then install the power supply. The user selects the power adapter for power supply according to the needs.

Use USB to RS485 or other methods to connect the computer to the digital radio;

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E96-DTU(400SL30-485) User Manual

Start two serial port debugging assistants, select the serial port baud rate to be 9600bps (default), and the check method to be 8N1 to realize serial port transparent transmission;

If the customer needs to switch the working mode, it can be controlled by the Mode button to switch between
different working modes (M0 indicator, M1 indicator). Long press the Mode button for about 1ms and then release it to switch the mode once. The mode switching details are shown in the table below:

Serial number mode 1
mode 2 mode 3

Class Transparent transmission mode
WOR mode Configuration mode

M1 Lights off
Lights off Light on

Note

Lights off
Light on Lights off

Serial port open, wireless open, transparent transmission (factory default mode), support special command air configuration. Can be defined as WOR sender and WOR receiver, support air wakeup The user accesses the register through the serial port to control the working status of the radio station. The user can configure the radio station through the upper computer configuration software.

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E96-DTU(400SL30-485) User Manual

mode 4

Sleep mode

Light on Light on The radio goes to sleep

Note: The radio has a power-down save mode function (the factory default setting is transparent transmission mode), and the user needs to switch the corresponding mode according to the M1 and M0 indicators (effective immediately).

3 Installation Dimensions

4 Technical Index

4.1 General Specifications

Serial number

Item

Specification

Note

Product Size 92*66*30 mm

See installation dimensions for details

product weight 95 g

Weight tolerance 5g

Operating

-40+85

Industrial grade

temperature

voltage range AC 85265V

It is recommended to use 110V or 220V for AC

Communication RS485

RS485

Baud rate

Factory default 9600 Baud rate range 1200115200

address code Factory default 0

A total of 65536 address codes can be set

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4.2 Frequency Range and Number of Channels

E96-DTU(400SL30-485) User Manual

Product Model E96-DTU(400SL22-485)

Default frequency MHz 433.125M

Frequency Range MHz
410.125493.125M

Channel spacing MHz
1M

Number of channels 84, Half duplex

Note: If multiple groups of digital radios are used in the same area to communicate one to one at the same time, it is recommended that each group of digital radios set a channel spacing of more than 2MHz.

4.3 Transmit Power Level

Product Model E96-DTU(400SL22-485)

30dBm Factory default

17dBm

13dBm

10dBm / 21dBm

Note: The lower the transmission power, the closer the transmission distance, but the working current will not decrease in the same proportion. It is recommended to use the maximum transmission power.

4.4 Air Speed Class

Product Model E96-DTU(400SL30-485)

Default air rate(bps) Factory default

Number of levels 8

Air speed class(kbps) 0.3\1.2\2.4\4.8\9.6\19.2\38.4\62.5

Note: The higher the air speed setting, the faster the transmission rate and the shorter the transmission distance; therefore, when the speed meets the requirements of use, it is recommended that the airspeed be as low as possible.

4.5 Sending and Receiving Length and Subcontracting Method

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E96-DTU(400SL30-485) User Manual

Product Model E96-DTU(400SL30-485)

Cache size 1000 bytes

Subcontracting method
Can be set by instructions to sub-package 32/64/128/240 bytes to send

Note: 1. If the radio's single received data is greater than the single packet capacity, the excess data will be automatically allocated to the second transmission until the transmission is completed; 2. The single received data of the radio station cannot be larger than the buffer capacity.

5 Detailed Function

5.1 Fixed-point Transmission (Hexadecimal)

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5.2 Broadcast Transmission (Hexadecimal)

E96-DTU(400SL30-485) User Manual

5.3 Broadcast Address
Example: Set the address of station A to 0xFFFF and the channel to 0x04. When station A is used as a transmitter (same mode, transparent transmission mode), all receiving stations under the
0x04 channel can receive data to achieve the purpose of broadcasting.
5.4 Listening Address
Example: Set the address of station A to 0xFFFF and the channel to 0x04. When the station A is receiving, it can receive all the data under the 0x04 channel to achieve the purpose of
monitoring.

6 Product selection

E95-DTU has four working modes. When there is no demanding low power consumption, it is recommended to configure the radio to transparent transmission mode (mode 0) if normal communication is required. The default setting of the radio at the factory is transparent transmission mode (mode 0).

Serial number Mode 0

Category
Transparent transmission mode

Annotation

Serial port open, wireless open, transparent Lights off Lights off
transmission (factory default mode), support

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E96-DTU(400SL30-485) User Manual special command air configuration.

Mode 1 Mode 2

WOR mode Configuration mode

Lights off Light on

Light on Lights off

Can be defined as WOR sender and WOR receiver, support air wakeup The user accesses the register through the serial port to control the working status of the radio station. The user can configure the radio station through the upper computer configuration software.

Mode 3

Deep sleep mode

Light on Light on The radio goes to sleep

Note: If there is no low power consumption requirement, there is no need to care about WOR mode (mode 1).

6.1 Transparent Transmission Mode (Mode 0)

Type When the M0 indicator light is off and the M1 indicator light is off, the radio is working in mode 0 Emission The user can input data through the serial port, and the radio will start wireless transmission.
The radio receiving function is turned on, and the wireless data will be output through the serial port TXD Receive
pin after receiving the wireless data.
6.2 WOR Mode (Mode 1)

Type When the M0 indicator light is off and the M1 indicator light is off, the radio is working in mode 1 When defined as the transmitter, the wake-up code for a certain period of time will be automatically added
Emission before transmission
Receive Data can be received normally, the receiving function is equivalent to mode 0

6.3 Configuration Mode (Mode 2)

Type

When the M0 indicator light is off and the M1 indicator light is on, the radio is working in mode 2

Emission

Can be configured wirelessly

Receive
Configurat ion

Can be configured wirelessly The user can access the register to configure the working status of the radio

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6.4 Deep Sleep Mode (Mode 3)

E96-DTU(400SL30-485) User Manual

Type

When the M0 indicator light is on and the M1 indicator light is on, the radio is working in mode 3

Emission

Unable to transmit wireless data.

Receive

Cannot receive wireless data.

7 Register Read and Write Control

7.1 Instruction Format

In configuration mode (mode 2: M1 indicator light is on, M0 indicator light is off), the supported command list is as

follows (when setting, only 9600, 8N1 format is supported):

Serial number

Instruction format

Detailed description

Set register Command: C0+start address+length+parameter

Response: C1+start address+length+parameter

Example 1: Configure the channel as 0x09 Instruction start address length parameter
Send: C0 05 01 09 1
Returns: C1 05 01 09

Read register

Example 2: Configure the radio address (0x1234), network address (0x00), serial port (9600 8N1), airspeed (1.2K) at the same time Send: C0 00 04 12 34 00 61 Return: C1 00 04 12 34 00 61 Command: C1+start address+length Response: C1+start address+length+parameter

Example 1: Read the channel

Instruction start address length parameter

Send: C1 05 01

Returns: C1 05 01 09

Example 2: Read the radio address, network address, serial port, airspeed at the same

time

Send: C1 00 04

Return: C1 00 04 12 34 00 61

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E96-DTU(400SL30-485) User Manual

Set up

Command: C2 + start address + length + parameters

temporary Response: C1 + start address + length + parameters

registers

Example 1: Configure the channel as 0x09

Instruction start address length parameter

Send: C2 05 01 09 3
Returns: C1 05 01 09

Wireless configuration

Example 2: Configure the radio address (0x1234), network address (0x00), serial port (9600 8N1), airspeed (1.2K) at the same time Send: C2 00 04 12 34 00 61 Return: C1 00 04 12 34 00 61 Instructions: CF CF + regular instructions Response: CF CF + regular response

Example 1: The wireless configuration channel is 0x09 Wireless command header command start address length parameter
Send: CF CF C0 05 01 09 5
Returns: CF CF C1 05 01 09

Example 2: Wirelessly configure the radio address (0x1234), network address (0x00),

serial port (9600 8N1), airspeed (1.2K) at the same time

Send: CF CF C0 00 04 12 34 00 61

Return: CF CF C1 00 04 12 34 00 61

wrong format 6

Malformed response FF FF FF

7.2 Register Description

Serial number
00H

Read and write
Read/ Write

name ADDH

description ADDH(Default 0)

01H

Read/ Write

ADDL

ADDL(Default 0)

02H

Read/ Write

NETID

NETID(Default 0)

Remarks
High byte and low byte of radio address; Note: When the radio station address is equal to FFFF, it can be used as the broadcast and monitor address, that is: the radio station will not perform address filtering at this time Network address, used to distinguish networks; When communicating with each other, they should be set to the same.
13

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E96-DTU(400SL30-485) User Manual

76 00 00 01
01
10 10 11

5 UART Serial port rate (bps) For two radios that communicate with

0 Serial port baud rate1200

each other, the serial port baud rate can

1 Serial port baud rate2400

be different, and the verification method

0 Serial port baud rate4800

can also be different;

Serial port baud rate9600

1 (Default)

When continuously transmitting large

0 Serial port baud rate19200

data packets, users need to consider the

1 Serial port baud rate38400

data congestion caused by the same baud

0 Serial port baud rate57600

rate, and may even be lost;

1 Serial port baud rate115200

It is generally recommended that the baud rate of the two communication

03H

Read/ REG0 4 3 Serial port check digit

Write

0 0 8N1(Default)

0 1 8O1

1 0 8E1

parties be the same.
The serial port mode of the two communication parties can be different;

1 1 8N1 (equivalent to 00)

2 1 0 Wireless air rate (bps)

00 00 01

0 Air speed0.3k 1 Air speed1.2k 0 Air speed2.4k(Default)

The air rate of both parties must be the same

0 1 1 Air speed4.8k

The higher the air rate, the smaller the

1 0 0 Air speed9.6k

delay and the shorter the transmission

1 0 1 Air speed19.2k

distance.

1 1 0 Air speed38.4k

11 76 00 01

1 Air speed62.5k Subcontracting settings 240byte(Default) 128byte

The data sent by the user is less than the sub-packet length, and the serial port output of the receiving end appears as an uninterrupted continuous output;

1 0 64byte 1 1 32byte

If the data sent by the user is larger than the packet length, the serial port of the receiving end will output in packets.

Read/

5 RSSI Environmental noise enable

04H

Write REG1 0 Disabled (default)

1 Enable

After enabling, you can send commands C0 C1 C2 C3 in transmission mode or WOR sending mode to read registers; Register 0x00: Current environmental noise RSSI; Register 0X01: RSSI when receiving data last time (The current channel noise is: dBm =-RSSI/2); Instruction format: C0 C1 C2 C3 + start address + read length; Return: C1 + address address + read length + read valid value; for example:
14

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E96-DTU(400SL30-485) User Manual
send C0 C1 C2 C3 00 01 Return C1 00 01 RSSI

10 00 01 10 11

Transmit power 30dBm(default) 17dBm 13dBm 10dBm / 21dBm

The relationship between power and current is non-linear. At the maximum power, the power supply has the highest efficiency; the current will not decrease in the same proportion as the power decreases.

Channel Control (CH)

Read/

05H

REG2 0-83 respectively represent a total of 84 Actual frequency = 410.125 + CH *1M

Write

channels

7 zEnable RSSI byte 0 Disabled (default) 1 Enable

After being enabled, the radio receives wireless data and outputs it through the serial port TXD, followed by an RSSI strength byte.

6 transfer method 0 Transparent transmission (default) 1 Fixed-point transmission
5 Relay function 0 Disable relay function (default)
Enable relay function
1

4 LBT enable

Read/

0 Disabled (default)

06H

REG3

Write

Enable

During fixed-point transmission, the radio will recognize the three bytes of serial data as: address high + address low + channel, and use it as a wireless transmission target.
After the relay function is enabled, if the target address is not the radio station itself, the radio station will start a forwarding; In order to prevent data return, it is recommended to use it in conjunction with the fixed-point mode; that is, the destination address and the source address are different.
After enabling, the wireless data will be monitored before transmission, which can avoid interference to a certain extent, but it may cause data delay;

1
3 WOR mode transceiver control WOR receiver (default) The radio transceiver is turned on, and
0 when transmitting data, a wake-up code for a certain period of time is added. WOR transmitter The radio cannot transmit data and works in WOR monitoring mode. The monitoring
1 period is shown below (WOR period), which can save a lot of power consumption.
2 1 0 WOR cycle

The maximum stay time of LBT is 2 seconds, and it will be issued forcibly when it reaches 2 seconds.
Only valid for mode 1;
After the WOR receiver receives the wireless data and outputs it through the serial port, it will wait 1000ms before entering the WOR again. During this period, the user can input the serial data and return it wirelessly;
Each serial port byte will be refreshed for 1000ms;
The user must initiate the first byte within 1000ms.
Only valid for mode 1;

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00 00 01 01 10 10 11
11

0 500ms 1 1000ms 0 1500ms 1 2000ms 0 2500ms 1 3000ms 0 3500ms 1 4000ms

07H

Write

CRYPT _H

High byte of key (default 0)

Low byte of key (default 0)

08H

Write

CRYPT _L

80H 86H

Read

Product information 7 bytes PID

E96-DTU(400SL30-485) User Manual
Cycle T= (1+WOR)*500ms, the maximum is 4000ms, the minimum is 500ms;
The longer the WOR monitoring interval period, the lower the average power consumption, but the greater the data delay;
Both sender and receiver must agree (very important) Only write, read returns 0; Used for encryption to avoid interception of wireless data in the air by similar radio stations; The radio station will use these two bytes as a calculation factor to transform and encrypt the wireless signal in the air.
Product information 7 bytes

7.3 Factory Default Parameters

Product model

Factory default parameter value:C0 00 00 62 00 00

Radio model

Frequency Address Channel

E96-DTU(400SL22-485 433.125M

)

0x0000

0x17

Air rate 2.4kbps

Baud rate 9600

Serial format
8N1

Transmit power
30dBm (small power)

8 Relay Networking Mode Use

Serial number

Relay mode description

After setting the relay mode through the configuration mode, switch to the normal mode, and the relay starts to work.

In the relay mode, ADDH and ADDL are no longer used as the radio address, but correspond to

the NETID forwarding pairing respectively. If one of the networks is received, it will be

forwarded to the other network. The network ID of the repeater itself is invalid.

In the relay mode, the relay station cannot send and receive data, and cannot perform low-power operation.

When the user enters other modes from Mode 3 (sleep mode) or is in the reset process, the radio will reset the user parameters, during which AUX outputs low level.

Description of relay networking rules:

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E96-DTU(400SL30-485) User Manual

1. Forwarding rules, the relay can forward data in both directions between two NETIDs. 2. In the relay mode, ADDH\ADDL is no longer used as a radio address, but as a NETID forwarding pairing. As shown in the figure: First level relay "Node 1" NETID is 08. "Node 2" NETID is 33. The ADDH\ADDL of relay 1 are 08 and 33 respectively. So the signal sent by node 1 (08) can be forwarded to node 2 (33) At the same time, node 1 and node 2 have the same address, so the data sent by node 1 can be received by node 2. Secondary relay The ADDH\ADDL of relay 2 are 33 and 05 respectively. So relay 2 can forward the data of relay 1 to the network NETID: 05. Therefore, node 3 and node 4 can receive node 1 data. Node 4 normally outputs data, and node 3 has a different address from node 1, so no data is output. Two-way relay As shown in the configuration: the data sent by node 1 can be received by nodes 2 and 4, and the data sent by nodes 2 and 4 can also be received by node

9 Relay Networking Mode Use
The following figure shows the display interface of the E96-DTU (400SL30-485) configuration host computer. The user can switch to the configuration mode through the MODE button, and quickly configure and read the parameters on the host computer.

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E96-DTU(400SL30-485) User Manual

In the configuration of the host computer, the radio address, frequency channel, network ID, and key are all displayed in decimal mode. The range of each parameter is: Network address: 065535 Frequency channel: 083 Network ID: 0255 Key: 065535
When using the host computer to configure the relay mode, the user needs to pay special attention. Since the parameters in the host computer are in decimal display mode, the radio address and network ID need to be converted when filling in the radio station address and network ID. If the network ID input by the transmitting terminal A is 02 and the network ID input by the receiving terminal B is 10, when the relay terminal R sets the radio address, the hexadecimal value 0X020A is converted to the decimal value 522 as the relay terminal R. Radio address. That is, the radio address value that needs to be filled in by the relay terminal R at this time is 522.
10 Program the Radio

Operating mode Configuration mode

M1 The indicator light is on

M0 The indicator light is off

Only use the configuration software to program the radio in the current mode

1. Programming can only be carried out in a specific working mode (see the above table). If the programming fails, please confirm whether the working mode of the radio is correct. 2. If you don't need complicated programming to open the E96-DTU (400SL30-485) configuration software, you can modify the relevant parameters.

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11 Related Products

E96-DTU(400SL30-485) User Manual

Product Number
E95-DTU(400SL22-485)
E95-DTU(400SL22-232)
E95-DTU(400SL30-485)
E95-DTU(400SL30-232)
E95-DTU(400SL22P-485 )
E95-DTU(400SL22P-232 )
E95-DTU(400SL30P-485 )
E95-DTU(400SL30P-232 )
E96-DTU(400SL22-485)
E96-DTU(400SL22-485) E96-DTU(400SL30-485)

Interface Type RS485 RS232 RS485 RS232 RS485
RS232
RS485
RS232 RS485 RS232 RS485

Working Frequency MHz
410.125 493.125 410.125 493.125 410.125 493.125 410.125 493.125 410.125 493.125
410.125 493.125
410.125 493.125
410.125 493.125 410.125 493.125 410.125 493.125 410.125 493.125

Transmit Power dBm 22 22 30 30
22
22
30
30 22 22 30

Commu nication Distanc e km
5 5 10 10
5
5
10
10
5 5 10

Features
A new generation of LoRa, rail type, RS485, E90-DTU SL series intercommunication, DC power supply A new generation of LoRa, rail type, RS232, E90-DTU SL series intercommunication, DC power supply A new generation of LoRa, rail type, RS485, E90-DTU SL series intercommunication, DC power supply A new generation of LoRa, rail type, RS232, E90-DTU SL series intercommunication, DC power supply A new generation of LoRa, rail type, RS485, E90-DTU SL series intercommunication, high protection, DC power supply A new generation of LoRa, rail type, RS232, E90-DTU L series intercommunication, high protection, DC power supply A new generation of LoRa, rail type, RS485, E90-DTU SL series intercommunication, high protection, DC power supply A new generation of LoRa, rail type, RS232, E90-DTU SL series intercommunication, high protection, DC power supply A new generation of LoRa, rail type, RS485, E90-DTU SL series intercommunication, AC power supply A new generation of LoRa, rail type, RS232, E90-DTU SL series intercommunication, AC power supply A new generation of LoRa, rail type, RS485, E90-DTU SL series

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E96-DTU(400SL30-232)

RS232

410.125 493.125

E96-DTU(400SL30-485) User Manual intercommunication, AC power supply
A new generation of LoRa, rail type, 10 RS232, E90-DTU SL series
intercommunication, AC power supply

12 Precautions for Use
1. Do not operate this radio in the vicinity of some flammable places (such as coal mines) or explosive dangerous objects (such as detonators for detonation). 2. A suitable DC stabilized power supply should be selected, which requires strong anti-high frequency interference, low ripple, and sufficient load capacity; preferably, it should also have over-current, over-voltage protection and lightning protection functions to ensure data transmission The radio is working normally. 3. Do not use it in a working environment that exceeds the environmental characteristics of the digital radio, such as high temperature, humidity, low temperature, strong electromagnetic field or dusty environment. 4. Don't let the digital radio station continuously be in full load transmitting state, otherwise the transmitter may be burnt out. 5. The ground wire of the digital transmission radio station should be well connected with the ground wire of the external equipment (such as PC, PLC, etc.) and the ground wire of the power supply, otherwise the communication interface may be burnt out; do not plug or unplug the serial port with power on. 6. When testing the digital radio station, you must connect a matching antenna or a 50 dummy load, otherwise the transmitter will be easily damaged; if the antenna is connected, the distance between the human body and the antenna should be more than 2 meters to avoid injury. Do not touch the antenna while transmitting. 7. Wireless data transmission stations often have different communication distances in different environments. The communication distance is often affected by temperature, humidity, obstacle density, obstacle volume, and electromagnetic environment; in order to ensure stable communication, it is recommended to reserve 50 % Or more of the communication distance margin. 8. If the measured communication distance is not ideal, it is recommended to analyze and improve the communication distance from the antenna quality and antenna installation method. You can also contact support@cdebyte.com for help. 9. When selecting the power supply, in addition to retaining 50% of the current margin as recommended, it should also be noted that its ripple should not exceed 100mV.
13 Important Statement
1. Ebyte reserves the right of final interpretation and modification of all contents in this manual. 2. Due to the continuous improvement of the hardware and software of the product, this manual may be changed without prior notice. The latest version of the manual shall prevail.

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Revision history

E96-DTU(400SL30-485) User Manual

Version 1.0 1.1

Date 2020-10-23 2021-02-04

Description Initial version Integrated SL series

Issued by Li ken

About us

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References

串口服务器_数传电台_4G DTU_遥控开关_LoRa/ZigBee/WiFi/蓝牙模块-成都亿佰特电子科技有限公司官网

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