Ebyte E90-DTU User manual

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Chengdu

Ebyte

ElectronicTechnology

Co.,Ltd

j.

Wireless

Modem

User

Manual

E90-DTU(230SL30)

All

rights

to

interpret

and

modify

this

manual

belong

to

Chengdu

Ebyte

Electronic

Technology

Co.,

Ltd.

Chengdu

Ebyte

Electronic

Technology

Co.,

Ltd.

E90-DTU

SL

User

Manual

«<:>»

EBYTE

1.

Introduction

1.1

Brief

introduction

E90-DTU

(230SL30)

is

a

data

transceiver

with

military-grade

LoRa

modulation

technology.

With

multiple

transmission

modes,

it

works

in

the

(220.125-236.125MHz)

frequency

band

(default

230.125MHz).

The

transceiver

provides

transparent

RS232/RS485

interface

and

supports

8~.

28V

voltage

input.

LoRa

direct-sequence

spread

spectrum

technology

will

bring

longer

communication

distances,

and

has

the

advantages

of

concentrated

power

density

and

strong

anti-interference

ability.

It

features

a

software

FEC

forward

error

correction

algorithm,

which

has

high

coding

efficiency

and

strong

error

correction

capability.

In

the

case

of

sudden

interference,

it

can

proactively

correct

the

interfered

data

packets,

greatly

improving

reliability

and

transmission

distance.

In

the

absence

of

FEC,

such

packets

can

only

be

discarded.

It

has

data

encryption.

The

data

transmitted

by

the

transceiver

over

the

air

is

random,

and

the

data

interception

is

meaningless

through

strict

encryption

and

decryption

algorithms.

Packet

length

setting

is

available

to

support

different

real-time

and

data

packets.

It

works

in

the

ISM

230MHz

band

with

a

communication

distance

of

up

to

5km.

As

a

communication

medium,

wireless

data

transceiver

has

the

same

scope

as

optical

fiber,

microwave

and

bright

line:

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

is

convenient,

has

strong

diffraction

ability,

flexible

networking

structure

and

long

coverage.

It

is

suitable

for

occasions

with

many

points

and

scattered,

complex

geographical

environment,

etc.

It

can

be

connected

with

PLC,

RTU,

rain

gauge,

liquid

level

meter

and

other

data

terminals.

1.1.

Certificate

E90-DTU

is

certified

with

CMIIT

ID:2017FP5780

by

SRRC.

E90-DTU

is

certified

with

“Certificate

of

conformity

on

explosive

application

protection”,

ID:

201711000975.

E90-DTU

is

certified

with

“Electrostatic

surge

test

report”

by

National

Institute

of

Measurement

and

Testing

Technology,

ID:

CNExl8.1461.

E90-DTU

is

certified

with

“Certificate

of

Design

Patent”,

Patent

Number:

ZL

2016

3

0501980.3.

E90-DTUis

certified

with

“Utility

model

patent

certificate”,

Patent

Number:

ZL

2016

2

1410691.3.

E90-DTU

is

certified

with

“CE”,ID:

CCISE180514601V.

E90-DTU

is

certified

with

“FCC”,

ID:

2ALPH-E90-DTU.

E90-DTU

is

certified

with

“RoHS”,

ID:

DTI201807025245.

1.2.

Features

★

All

core

components

are

imported,

featuring

the

most

advanced

functions,

the

smallest

volume

and

the

best

price.

★

Using

military-grade

LoRa

modulation

technology,

with

data

encryption,

the

packet

length

is

available

for

configuration.

★

Large

single

package,

single

package

is

up

to

240

bytes,

adapt

to

Modbus.

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SL

User

Manual

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★

Simple

and

efficient

power

supply

design,

support

power

adapter

or

crimping

mode,

support

8-28V

power

supply.

★

Transmit

power

is

up

to

1W,

multi-level

adjustable,

with

all

technical

indicators

meeting

European

industrial

standards.

★

Support

LBT

function,

the

transceiver

automatically

waits

to

send

data

according

to

the

current

ambient

noise

intensity.

The

communication

success

rate

of

the

module

in

harsh

environments

is

greatly

improved.

★

Remotely

configure

or

read

wireless

module

parameters

by

sending

command

packets

wirelessly.

★

Multi-level

relay

networking

can

be

realized

,

which

effectively

extends

communication

distance

for

ultra-long-distance

communication.

★

With

temperature

compensation

circuit,

the

frequency

stability

is

better

than

±1.5PPM.

★

Operating

temperature

range:

-40

°

C

~

+85

0

C,

to

adapt

to

a

variety

of

harsh

working

environment.

★

All-aluminum

alloy

casing,

compact

size,

easy

installation

and

good

heat

dissipation;

perfect

shielding

design,

with

good

electromagnetic

compatibility

and

strong

anti-interference

ability.

★

Multiple

protection

functions

such

as

power

reverse

connection

protection,

over-current

protection,

and

antenna

surge

protection

greatly

increase

the

reliability

of

the

device.

★

Powerful

software

functions,

all

parameters

can

be

programmed:

such

as

power,

frequency,

air

data

rate,

address

ID,

etc.

★

Ultra-low

power

consumption,

the

standby

current

is

only

10mA

(lower

than

power

consumption

in

power-saving

mode

and

sleep

mode),

and

the

transmitting

current

is

<0.1

A.

★

with

built-in

watchdog

and

precise

time

layout,

once

an

exception

occurs,

the

transceiver

will

automatically

restart,

and

continue

to

work

according

to

the

previous

parameters.

2.

Quick

Start

You

need

to

prepare

items

below,

1,

First

install

the

antenna

for

device,

then

install

the

power

supply,

and

ensure

that

the

dial

switch

is

in

the

correct

state.

The

user

can

select

the

crimping

method

or

the

power

adapter

to

supply

power

according

to

the

requirements.;

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User

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2,

C

onnect

the

DTU

to

computer

via

USB

to

RS-232

or

USB

to

RS-485

converter

etc.;

3,

S

tart

two

serial

port

debugging

assistants,

select

the

baud

rate

9600bps,

check

mode

as

8N1

to

realize

transparent

transmission;

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05:51:20.960]

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4.

I

f

customer

needs

to

modify

the

parameters,

please

dial

the

switch

in

the

configuration

mode

and

connect

to

the

computer.

Open

the

E90-DTU

SL

configuration

software,

you

can

modify

the

relevant

parameters.

After

completing

the

configuration,

you

must

restore

the

DIP

switch

status

for

communication.

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SL

User

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EBYTE

Mode

0

Factory

default

Mode

2

Parameter

configuratio

3.

Dimensions

3.1.

Parts

description

©

_

©1

□

□□□

-CD

r-®

r®

©

(

\

(

)

(

)

✓

s®

(«:»)

E90-DTU

EBYTE

DATA

TRANSCEIVER

RS232

antY

m

MO

ZD

Ml

ZD

D®

5

485_A

KD

KD

□

®1

485

B

ill

o

o

o

DC

0®)

GND

PWR

TXD

RXD

©-c-@

vcc

C

)

(

)

V_/

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SL

User

Manual

(«:»)

EBYTE

No.

Name

Function

Note

1

DB-9

female

socket

RS-232

interface

Standard

RS-232

interface

2

3.81

terminal

block

RS-485,

power

interface

Standard

RS-485

interface

and

pressure

line

power

interface

3

PWR-LED

Power

LED

Red,

lit

when

the

power

is

on

4

TXD-LED

Transmit

LED

Yellow,

blinks

when

sending

data

5

RXD-LED

Receive

LED

Yellow,

blinks

when

receiving

data

6

DC

power

interface

Power

interface

In-line

round

hole,

outer

diameter

5.5mm,

diameter

2.5mm

7

DIP

switch

DIP

switch

Controlled

by

working

mode

8

Antenna

interface

SMA-K

interface

external

thread,

10mm,

50£2characteristic

impedance

3.2.

Dimensions

c

c

k

□

®5

□

®)

r

□

®5

-

c

)

(((;)))

E90-DTU

DATA

TRANSCEIVER

RS232

485_A

485_B

GND

VCC

o

o

o

PWR

TXD

RXD

ANT

DC

Y

10

j

wh-±

MO

Ml

I

ik

(

)

Unit:

mm

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4.

Interface

definition

4.1.

P

ower

interface

Users

can

choose

©

DC

power

interface,using

the

power

adapter

supply

with

the

interface

of

the

5.5mm

outer

diameter

,

2.5mm

diameter

;

Also

users

can

choose

the

VCC

and

GND

terminal

power

supply

from

(D

,

both

are

optional;

8

~

28V

DC

power

supply,

it

is

recommended

to

use

12V

or

24V

DC

power

supply

for

E90-DTU.

4.2.

RS232

The

E90-DTU

can

be

connected

to

the

device

via

RS-232

using

the

standard

DB-9

interface.

4.3.

RS485

E90-DTU

can

be

connected

to

the

485

A

terminal

and

485

B

terminal

from

(D

with

the

RS-485

A

terminal

and

B

terminal

of

other

device

respectively.

Pin

NO.

Definition

Function

Description

1

VCC

Crimping

power

interface,

positive

8

~

28V

DC,

recommended

12V

or

24V

2

GND

Crimping

power

interface,

negative

The

power

supply

negative

pole

is

connected

to

the

system

ground

and

the

housing

3

485_B

RS-485

interface,

interface

B

The

RS-485

interface

B

is

connected

to

the

device

interface

B

4

485_A

RS-485

interface,

interface

A

The

RS-485

interface

A

is

connected

to

the

device

interface

A

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★

Note:

The

transceiver

will

be

in

poor

communication

when

connected

to

multiple

devices

,

it

is

recommended

to

be

connected

to

a

single

device,

please

try

to

use

parallel

120£2

resistor

between

485

A

terminal

and

485_B.

5.

Technical

specification

5.1.

Model

specification

Model

No.

Frequency

TX

power

Distance

Features

Recommended

application

Hz

mW

km

E90-DTU(230SL30)

230.125M

1000

10

LoRa,

anti-interference

Suitable

for

transmission

of

fast

speed

in

complex

environment

with

data

interference

over

a

long

distance

Note:

Test

condition:

in

clear

and

open

air

without

shelters,

12V

/2A

power

supply,

5dBi

gain

sucker

antenna

over

2

meters

height

from

the

ground,

with

the

factory

default

parameters.

5.2.

General

specification

parameter

No.

Item

Value

Note

1

Size

82

*

62

*

25

mm

See

more

in

3.2.

Dimensions

2

Weight

130g

±4.5

g

3

Temperature

-40°C

~

85°C

Meet

industrial

request

4

Antenna

impedance

50

n

Standard

50

fi

characteristic

impedance

5

Supply

voltage

+8

~

+28V

DC

It

is

recommended

to

use

12V

or

24V

6

Communication

interface

RS232/RS485

Standard

DB9

hole

/

3.81

terminal

block

7

Baud

rate

Default

9600

From

1200-115200

8

Address

Default

0

65536

configurable

address

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5.3.

F

requency

and

channel

numbers

Model

No.

Default

Frequency

Frequency

Range

Channel

Interval

Channel

numbers

Hz

Hz

Hz

E90-DTU(230SL22)

230.125M

220.125-236.125MHz

250k

65,

half

duplex

★

Note:

In

the

same

area

when

multiple

data

transceivers

are

communicating

one

to

one

at

the

same

time

,

it

is

recommended

to

set

the

channel

spacing

between

each

group

of

data

transceivers

at

2MHz

or

more.

5.4.

T

ransmitting

power

Model

No.

30dBm

27dBm

24dBm

21

dBm

E90-DTU(230SL30)

V

V

V

V

★

Note:

The

lower

the

transmit

power,

the

closer

the

transmission

distance,

but

the

working

current

won’t

be

declined

in

exact

proportion

,

it

is

recommended

to

use

the

maximum

transmit

power.

5.5.

A

ir

data

rate

Model

Default

Levels

Air

data

rate

(bps)

bps

bps

E90-DTU(230SL30)

2.4k

7

0.3,

0.6,

1.2,

2.4,

4.8,

9.6,

15.6k

★

Note:

The

higher

the

air

data

rate,

the

faster

the

transmission

rate,

the

transmission

distance

is

also

closer;

when

the

rate

meets

the

requirements

,

the

lower

air

data

rate,

the

better

quality.

5.6.

C

urrent

Model

TX

current

mA

Standby

current

mA

12V

24V

12V

24V

E90-DTU(230SL30)

276

141

21

13

★

Note:

It

is

recommended

to

retain

more

than

50%

of

the

current

margin

when

selecting

the

power

supply,

which

will

help

the

data

transceiver

to

work

steadily

for

a

long

time.

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5.7.

TX

and

RX

FIFO

and

sub-packing

method

Model

No.

Buffer

Sub-packing

method

E90-DTU(230SL30)

1000

bytes

Can

be

sub-packed

to

32/64/128/240

byte

each

time

via

command

★

Noted.

When

the

receiving

data

is

more

than

a

single

packet

capacity,

the

beyond

part

will

be

automatically

assigned

to

the

second

transmission

until

it

is

completed;

2.

The

data

transceiver

can

not

receive

data

which

is

more

than

the

buffer

capacity;

6.

Function

Description

6.1.

Fixed

Transmission

00

03

04

AA

BB

Target

address

Target

channel

Data

Address

Channel

No

output

No

output

Address

Channel

6.2

Broadcast

Transmission

:

F

FF04

AA

BE

Address

Channel

Data

'

'

I

Address

Channel

No

output

Address

Channel

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