Ebyte E90-DTU, 900SL30-GPRS User Manual
E90-DTU (900SL30-GPRS)
Chengdu Ebyte Electronic Technology Co,;Ltd E90-DTU (900SL30-GPRS) user manual
目录
1.OVERVIEW
1.1 INTRODUCTION
1.2 FEATURES
1.3 STATION SYSTEM PARAMETERS
1.4 PIN DESCRIPTION
1.5 PIN DEFINITION
1.6 SIZE
2 QUICK START
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2.1 HARDWARE PREPARATION AND COMMUNICATION TESTING
2.2 WORKING MODE AND FUNCTIONS
3 APPLICATION MODEL
4 NOTE
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5 IMPORTANT STATEMENT
ABOUT US
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Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd 1
Chengdu Ebyte Electronic Technology Co,;Ltd E90-DTU (900SL30-GPRS) user manual
E90-DTU (900SL30-GPRS) is a data transmission station from radio frequency
to GPRS network server, which realizes the transparent data transmission between
sub-1g and GPRS network. The sub-1g radio frequency transceiver is based on
SEMTECH SX1262 radio frequency chip and supports LoRa spread spectrum
technology. It is equipped with high-performance MCU internally, which enables the
module to have a variety of transmission modes. At the same time, the module is built
1.Overview
1.1 Introduction
with power amplifier (PA) and low noise amplifier (LNA). At the network end of GPRS network, the radio supports
LTE-FDD/TTE-TDD /WCDMA/ TD-SCDMA /CDMA/GSM wireless communication data transmission, and supports
LTE-FDD, LTE-TDD, dc-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA, TD-SCDMA, CDMA, EDGE and GPRS
network data connection.
E90-DTU (900SL30-GPRS) can be directly connected to the upper computer via USB cable for parameter
configuration, without the need to install the driver, it is easy to change user-defined parameters.
This chapter is a quick introduction to E90-DTU (900SL30-GPRS) products. It builds the simplest hardware
environment to test the network transmission function of E90-DTU (900SL30-GPRS), that is, to realize the two-way
transmission of data from RF module to the network server.
1.2 Features
Can meet almost all M2M application needs;
Support transparent data transmission, support TCP, UDP network protocol, support heartbeat package,
registration package;
Support serial port caching function, the serial data can be cached to local before establishing connection
with the server;
The maximum downlink rate of GPRS data was 85.6 KBPS, and the maximum uplink rate was 85.6
KBPS.
Support HTTP/TCP/UDP/FTP/PPP/NTP/MMS/SMTP/PING, coding format, CS - 2, CS CS - 1-3 and CS
- 4;
Software/hardware dual door design, system stability, never crash;
Sub-1g radio frequency;
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Chengdu Ebyte Electronic Technology Co,;Ltd E90-DTU (900SL30-GPRS) user manual
Parameter
type
Parameter
Name
The parameter value
Description
Characteristic
parameters
Support
Frequency
Quad-frequency: GSM850, EGSM900,
DCS1800, PCS1900
Module can automatically search frequency
Frequency selection can be set with the AT
command
Conform to GSM Phase 2/2+
-
GPRS
Connection
characteristics
GPRS multi-slot class 12 (default)
GPRS multi-slot class 1~12 (configurable)
GPRS mobile station class B
-
GPRS Data
features
GPRS data downlink transmission: up to 85.6
KBPS
GPRS uplink data transfer: up to 85.6 KBPS
Coding formats: cs-1, cs-2, cs-3 and cs-4
Supports the PAP (password verification
protocol) protocol commonly used for PPP
connections
Support for protocols commonly used for
CHAP (query handshake authentication
protocol)
The built-in protocols:
TCP/UDP/FTP/PPP/HTTP/NTP/MMS/SMTP/
PING, etc.
Support for unstructured supplementary data
services (USSD)
-
The antenna
interface
SMA interface, NET signal output, 50ohm
characteristic impedance
-
Transmission
Power
Class 4 (2W)： GSM850
and EGSM900
-
The measured communication distance of RF can reach 10km.
Support global license-free ISM 868/915mhz frequency band;
Support data transmission rate of 0.3kbps ~ 15.6kbps;
Based on SX1268 development, support the new generation of LoRa technology;
Support RSSI for evaluating signal quality, improving communication network, ranging;
Support LBT, monitor channel environment noise before sending, improve communication success rate;
Industry-standard design, support - 40 ~ 85 ° C for a long time use;
Use USB to connect the computer, no need to install the driver, connected to the computer can be
configured parameters.
Support 8~28V wide voltage supply, DC power supply base and terminal power supply.
The power supply has good over current, over voltage, anti - reverse connection and other functions.
1.3 Station system parameters
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Chengdu Ebyte Electronic Technology Co,;Ltd E90-DTU (900SL30-GPRS) user manual
Class 1 (1W)：DCS1800 and PCS1900
RF
Characteristic
parameters
The air rate
2.4kbps
8 adjustable level（0.3、1.2、2.4、4.8、9.6、19.2、
38.4、62.5kbps）
WOR role
receiver
Can be configured as a receiver/sender
WOR cycle
2000ms
500ms~4000ms
It can be configured as 500ms~4000ms
Transmission
power
30dBm
（30、27、24、
21dBm
）
About 1W, level 4 adjustable (30, 27, 24,
21dBm)
Transport
Transparent Transmission
Can be configured for transparent transmission
or fixed-point transmission
The module
address
0~65535
Default address 0
working
frequency
850.125MHz-930.125MHz
Default 868.125MHz, channel number 80,
channel interval 1MHz
Transmission
power
30dBm
About 1W, level 4 adjustable (30, 27, 24,
21dBm)
Receiving
sensitivity
-138dbm@0.3kbps
The receiver sensitivity is independent of the
baud rate and delay time
Baud rate
115200 bps
No modification supported
The antenna
interface
SMA Interface
RF signal output, 50 ohm characteristic
impedance
Station system
parameters
Flow loss
value (typical
value)
66.5mA@12V
Idle state, no data transmission
Working
temperature
-30℃~+70℃
Extended to 40 ℃ ~ + 85 ℃ temperature
Working
voltage
DC 8~28V
Recommend 12V/24V power supply
Size
105*75*30mm
Overall size (excluding antenna)
3GPP
Frequency
1 Timeslot
2 Timeslot
4 Timeslot
CS-1
9.05kbps
18.1kbps
36.2kbps
CS-2
13.4kbps
26.8kbps
53.6kbps
CS-3
15.6kbps
31.2kbps
62.4kbps
CS-4
21.4kbps
42.8kbps
85.6kbps
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Chengdu Ebyte Electronic Technology Co,;Ltd E90-DTU (900SL30-GPRS) user manual
1.4 Pin Description
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Chengdu Ebyte Electronic Technology Co,;Ltd E90-DTU (900SL30-GPRS) user manual
No.
Name.
Function
1
Grounding screw
Ground connection
2
DC_IN
Power adapter interface, power supply range 8~28V, recommended 12V/24V
3
DC_IN-
Power reference ground
4
DC_IN+
Power input, power supply range 8~28V, recommended 12V/24V
5
Reset
System reset button, long press time no requirement
6
USB
Micro USB： parameter configuration interface
7
Reload
Press 4~10s to restore the factory Settings
8
PWR
Red: power indicator
9
WORK
Yellow: data transmission indicator light; The light flashes when there is data
transmission
10
LINK
Yellow: network indication, always on after net
11
NET
4 G/GPRS antenna interface (SMA - K external thread hole, 50 Ω characteristic
impedance)
12
SIM
SIM card slot
13
RF
RF antenna interface (SMA - K external thread hole, 50 Ω characteristic impedance)
1.5 Pin Definition
Note: it is recommended to connect the housing with the earth through grounding screws.
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd 6
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