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USR-G785-E
User Manual
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Usr USR-G785-E User Manual

USR-G785-E User Manual Technical Support: h.usriot.com

USR-G785-E User Manual

File Version: V1.0.3
Jinan USR IOT Technology Limited
1
USR-G785-E User Manual Technical Support: h.usriot.com
Contents
USR-G785-E User Manual......................................................................................................................................1
Features.......................................................................................................................................................................3
1. Get Start...............................................................................................................................................................4
1.1.1. Hardware Preparation............................................................................................................... 4
1.2.1. Initial Parameters....................................................................................................................... 5
2. Product Overview................................................................................................................................................6
3. Product Function.................................................................................................................................................9
3.1. Work Mode........................................................................................................................................ 11
3.1.1. Net Transparent Transmission Mode......................................................................................11
3.1.1.1. Mode Declaration......................................................................................................11
3.1.2. UDC Mode................................................................................................................................. 13
3.1.2.1. Mode Description......................................................................................................13
3.2. Serial Port..........................................................................................................................................14
3.2.1. Basic Parameters.......................................................................................................................14
3.2.2. Frame Forming Mechanism.................................................................................................... 15
3.2.2.1. Time Trigger..............................................................................................................15
3.2.2.2. Length Trigger.......................................................................................................... 15
3.2.3. RFC2217 Similar Function...................................................................................................... 15
3.3. Characteristic Function....................................................................................................................16
3.3.1. Registration Package Function................................................................................................16
3.3.2. Heartbeat Packet.......................................................................................................................18
3.3.3. Indicator Status.........................................................................................................................19
3.3.4. Firmware Upgrade....................................................................................................................19
3.3.5. Restore to The Factory Settings.............................................................................................. 19
4. Parameter Setting..............................................................................................................................................20
4.1. AT Commands Setting......................................................................................................................20
4.1.1. Setup Software.......................................................................................................................... 20
4.1.2. Net AT Command..................................................................................................................... 20
4.1.3. SMS AT Command................................................................................................................... 21
5. AT Commands...................................................................................................................................................21
6.Contact Us.............................................................................................................................................................. 23
7.Disclaimer..............................................................................................................................................................23
8.Update History......................................................................................................................................................23
Jinan USR IOT Technology Limited
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Features

Support TCP Client and UDP Client
Support register package and heartbeat package
Support setting parameters by SMS
Support net transparent transmission mode and UDC mode
Support AT commands
Support RFC2217 similar function
Support apply server-side secondary development information
USR-G785-E User Manual Technical Support: h.usriot.com
Jinan USR IOT Technology Limited
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USR-G785-E User Manual Technical Support: h.usriot.com
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1.Get Start

1.1. Hardware Test

1.1.1. Hardware Preparation

1. Connect G785-E and PC with USB-RS232 serial cable;
2. Install antenna;
3. Install SIM card;
4. Power on G785-E with 9-36V DC power supply.
USR-G785-E is a product developed for serial devices and network servers to transmit data to each other. With
simple AT instructions, it is easy to use this product to realize two-way data transparent transmission from serial
port to network.
This chapter is a quick introduction to the USR-G785-E product. New users are advised to read this chapter
carefully and follow instructions to get a systematic understanding of the product. Users can skip this chapter if
they are familiar with such products. Refer to the subsequent chapters for specific details and instructions.
This chapter mainly tests the G785-E network transmission function, that is, the data transmission between the
serial port and the TCP Server terminal.
Technical support: h.usriot.com
If you have purchased it, you will have the following accessories:
Figure 1 accessories
Data flow topology:
Figure 2 data flow topology
Before testing, please do the hardware connection as shown below.
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1.2. Data Transmission Test

1.2.1. Initial Parameters

Work mode
Network data transmission
Server address
test.usr.cn
Server port
2317
Serial parameters
115200,8,1,None
Command port
RS232
Table 1 default parameters
1. Connect to the computer serial port with the above connection mode. To set up the software, first select RS232's
serial number, baud rate and other parameters, and open the serial port.
Note: please keep the factory parameters during this test.
2. Power supply USR-G785-E with the power adapter configured by our company. POWER lights turn on, WORK
lights flicker, wait for GPRS and LINKA lights to turn on, proceed to the next step. Please refer to the following
chapters for instructions.
3. When the LINKA lights up, send data to the module through RS232 serial port, for example, send "www.usr.cn",
later in the software receiving window, receive "www.usr.cn", which is returned by the test server, the test is successful.
Figure 3 setup software
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2.Product Overview

2.1. Product Introduction

2.2. Module Default Parameters

Item
Index
Wireless
parameters
Wireless standard
TDD-LTE，FDD-LTE，WCDMA，GSM
Standard frequency range
TDD-LTE
B38/B40/B41
FDD-LTE
B1/B3/B5/B7/B8/B20
WCDMA
B1/B5/B8
GSM
B3/B8
Transmitting power
TDD-LTE
Class 3 (23dBm±2dB)
FDD-LTE
Class 3 (23dBm±2dB)
WCDMA
Class 3 (24dBm+1/-3dB)
GSM Band8
Class 4 (33dBm±2dB)
GSM Band3
Class 1 (30dBm±2dB)
Technical specifications
LTE
Maximum support for non-CA CAT 4 Supporting 1.4~20MHz RF bandwidth Downlink support for multi-user MIMO TDD: maximum up 35 Mbps, maximum down 130 Mbps FDD: Maximum upstream 50 Mbps, maximum downstream 150 Mbps
WCDMA
Supports 3GPP R8 dc-hspa + Supports 16-qam, 64_QAM and QPSK modulation 3GPP R6 CAT6 HSUPA: maximum uplink rate 5.76Mbps 3GPP R8 CAT24 dc-hspa + : the maximum downlink rate is 42Mbps
GSM
R99: CSD transmission rate: 9.6 KBPS,14.4 KBPS GPRS: supports GPRS multi-slot class 12(default 12) Coding formats: cs-1 / cs-1 / cs-3 and
USR-G785-E is the M2M product launched in 2018. European band .The software has perfect functions and covers
most of the conventional application scenarios. Users can realize two-way data transparent transmission from serial
port to network by simple settings. It also supports custom register packages, heartbeat packages, two-way Socket
connections.
Table 2 default parameters
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cs-4 Maximum 4 RX slots per frame EDGE: Support EDGE multi-slot class 12(default 12)
Antenna options
SMA interface
Hardware
parameters
Data interface
RS232：2400bps - 115200bps
RS485：2400bps - 115200bps
Working voltage
DC 9V~36V
Working current
Average 60ma-86ma Max: 175mA 12V
Working temperature
-40℃- 70℃
Storage temperature
-45℃- 90℃
Size
96.5×70×25mm
Software
parameters
Work mode
Transparent transmission mode, UDC mode.
Set command
AT+ command
Network protocol
TCP/UDP/DNS
Maximum TCP connection number
2
User configuration
Serial AT command， net AT command，message AT command
Customer application software
Support customized application software
Software
function
Domain name resolution DNS
Support Simple transmission mode
Support TCP Client/ UDP Client
Heartbeat
Support
RFC2217 similar
Support
Registration package mechanism
Support custom /ICCID/IMEI register package

2.3. Hardware Description

Unit：mm
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