Subscribe to Our Youtube Channel
Related Manuals for USR IOT USR-G771-E
Summary of Contents for USR IOT USR-G771-E
-
Page 1: Usr-G771-E User Manual
Technical Support: USR-G771-E User Manual Document version: V1.0.5 www.usr.cn... -
Page 2: Table Of Contents
6.10. Firmware Upgrade..............................27 6.11. Restore to Factory Default Settings........................28 6.12. Timeout Restart..............................29 7. AT Commands..................................29 7.1. AT Command Settings............................29 7.2. Serial AT Commands.............................. 30 7.3. Network AT Commands............................30 7.4. SMS AT Commands..............................31 Jinan USR IOT Technology Limited www.pusr.com... -
Page 3: Introduction
1. Introduction 1.1. Overview USR-G771-E is a LTE CAT 1 communication modem, which supports LTE and GSM, covers the mainstream frequency bands of European operators. It has perfect software function, supports TCP/UDP transparent transmission, SMS transmission, HTTPD Client mode and AT command configuration. In addition, it is simple to configure, has high reliability and built-in hardware watchdog, supports FOTA upgrading. -
Page 4: Get Started
FDD:B1/3/7/8/20/28 23dBm±2dB TX Power GSM:900MHz 33dBm±2dB GSM:1800MHz 30dBm±2dB GSM:900MHz -109.5dBm GSM:1800MHz -108dBm Rx Sensitivity FDD:B1/3/20 -98dBm FDD:B7 -97.5dBm FDD:B8/B28 -98.5dBm TCP/UDP/HTTPD/SMS transparent transmission, CMD mode Operating mode Software Configuration command AT+command Network protocol TCP/UDP/DNS/FTP/HTTP/IPV4/IPV6 Jinan USR IOT Technology Limited www.pusr.com... -
Page 5: Hardware
Serial/Network/SMS AT command Socket distribution protocol Support Heartbeat package Support ICCID/IMEI/SN/User-defined/LBS Identity package Support ICCID/IMEI/SN/User-defined/CLOUD FOTA self upgrade Support Features Backup socket Support geolocation Support Base station FTP upgrade Support Support 2.2. Hardware 2.2.1.Dimensions Jinan USR IOT Technology Limited www.pusr.com... -
Page 6: Indicators
USR-G771-E User Manual Technical Support: 2.2.2.Indicators There are five indicators on USR-G771-E, PWR, WORK, NET, LINKA, DATA. Indicator Function Status POWER Power indicator Always on after normal power supply. WORK Working status indicator. Flashes every second. Green means 4G network, red Network status indicator means 2G network. -
Page 7: Utility Configuration
Connect 9-36V DC power adapter to power G771-E. Then “POWER” indicator will always on and the “WORK” indicator will flash. 3. Utility Configuration 3.1. Download the Utility Please download the utility in this link: https://www.pusr.com/products/RS232/RS485-serial-to-Cat-1-771.html 3.2. Starting the Configuration Utility USR-G771-E utility is shown as following: Jinan USR IOT Technology Limited www.pusr.com... - Page 8 Modem parameter area, setup some basic global parameters. Common command button, click to send the self-input command. Data receiving and display area, displaying the data sent and received. Data sending area, input the data and click Send. Jinan USR IOT Technology Limited www.pusr.com...
-
Page 9: Serial Port
USR-G771-E User Manual Technical Support: 4. Serial Port 4.1. Basic Parameters Serial parameters of USR-G771-E must be consistent with the parameters of the serial device. Serial port parameters include basic parameters and framing parameters. Item Parameter Baud rate 1200~230400bps... -
Page 10: Frame Forming Mechanism
This frame is sent to the network as a TCP or UDP packet. The "length threshold" here is the package length. The settable range is 5~4096. Factory defaults to 1024. This parameter can be set by AT command, AT+UARTFL=<length>. Note: L is the packaging length. Jinan USR IOT Technology Limited www.pusr.com... -
Page 11: Selecting An Operating Mode
Technical Support: 5. Selecting an Operating Mode USR-G771-E has three operating modes: transparent mode, HTTPD Client mode and SMS mode. 5.1. Transparent Mode In this mode, users do not need to pay attention to the data conversion process, can realize the bidirectional data transparent transmission between serial devices and network servers. - Page 12 Save all parameters and restart Test Connect the serial port of USR-G771-E to the computer via a RS232 serial to USB cable, send data from the utility, the test server will return the same data to serial port. Jinan USR IOT Technology Limited...
- Page 13 USR-G771-E User Manual Technical Support: Jinan USR IOT Technology Limited www.pusr.com...
-
Page 14: Httpd Client Mode
The modem will filter out the received HTTP protocol header data by default, only output user data to the serial port. Users can choose whether to filter by AT command. Set parameters by the utility: Jinan USR IOT Technology Limited www.pusr.com... - Page 15 Save parameters and restart the modem Test After the NET light is on, send the data in the format of "data =". After the data is sent successfully, server will return the data. Jinan USR IOT Technology Limited www.pusr.com...
-
Page 16: Sms Mode
User can decide whether to transmit the data of the specified mobile phone to the serial device through settings. Users can send and receive SMS to check the serial device status remotely via G771-E. Jinan USR IOT Technology Limited www.pusr.com... - Page 17 2. When only receive SMS from source number is enabled, other phone numbers can still query or set parameters. Test When the NET light is on, we can send and receive data in both directions via SMS with destination phone number. Jinan USR IOT Technology Limited www.pusr.com...
- Page 18 USR-G771-E User Manual Technical Support: Jinan USR IOT Technology Limited www.pusr.com...
-
Page 19: General Function
IMEI: Unique identification code of the Internet modem, which is mainly used in device identification, has nothing to do with SIM card. SN: Serial number. USER: User-defined data. CLOUD: Set the device ID and password when connecting to USR Cloud, sent when building connection. Set by the utility: Jinan USR IOT Technology Limited www.pusr.com... - Page 20 Set the work mode to NET AT+REGEN=ON Enable identity package function AT+REGTP=USER Set the type to User-defined AT+REGDT=7777772E7573722E636 Set the User-defined data in HEX. AT+REGSND=LINK Send the package as the prefix of the data AT+S Save parameters and restart Jinan USR IOT Technology Limited www.pusr.com...
-
Page 21: Heartbeat Package
IMEI: Unique identification code of the Internet modem, which is mainly used in device identification, has nothing to do with SIM card. SN: Serial number. USER: User-defined data. LBS: Current latitude, longitude of the device and time. Set by the utility: Jinan USR IOT Technology Limited www.pusr.com... -
Page 22: Socket Distribution Protocol
6.3. Socket Distribution Protocol USR-G771-E supports socket distribution protocol. When a device is connected to multiple sockets, can send different serial data to different servers via this protocol. Data returned from different server will also be sent to the serial port with the socket distribution protocol. -
Page 23: Backup Socket
In transparent mode, you can set one backup socket for each socket, the modem will try to connect to backup server when cannot connect to the main server. This function defaults to be unchecked. Set by the utility: Jinan USR IOT Technology Limited www.pusr.com... -
Page 24: Security
After logging, you can also change the password by sending the login command again. The modem will automatically exit AT command mode if there is no login command within 30s. Set by the utility: Jinan USR IOT Technology Limited www.pusr.com... - Page 25 Save all parameters and restart Change the password: Command Operation +++a Enter serial AT command mode AT+SIGNINAT=usr_cn Login command AT+VER Query the firmware version AT+SIGNINAT=usr_cn# Change the password AT+S Save all parameters and restart Jinan USR IOT Technology Limited www.pusr.com...
-
Page 26: Ntp
USR-G771-E User Manual Technical Support: 6.6. NTP USR-G771-E supports connecting to the NTP server for time synchronization. This function defaults to be disabled, support connecting to up to 4 NTP servers. User can send “AT+CCLK” or “AT+CCLK?” to query the current time. -
Page 27: Ftp Upgrade
USR FTP Upgrade protocol. 6.8. Base Station Geolocation USR-G771-E supports base station geolocation function, and can obtain general location of the device through the operator's network. Base station positioning information can be obtained through serial AT command or SMS AT command. -
Page 28: Restore To Factory Default Settings
Hardware reset: After power on, press the “Reload” button in the device for 3~15S to restore the device to factory parameters. Software reset: After enter AT command mode, send “AT+CLEAR” from the serial port to restore the device. Jinan USR IOT Technology Limited www.pusr.com... -
Page 29: Timeout Restart
USR-G771-E User Manual Technical Support: 6.11. Timeout Restart USR-G771-E supports timeout restart function, defaults to be enabled, 1800s. When there is no data in 30min, the device will restart automatically. You can change it via AT command: AT+RSTIM. 7. AT Commands AT command is used for controlling modem, for USR devices in transparent mode normally, you must enter AT command mode at first, then you can send AT commands to configure or query the parameter settings. -
Page 30: Serial At Commands
In transparent mode, you can also send “Command Prefix+AT command” from the network side to query or change the modem’s parameter settings. Example: query socket A status, there is a carriage return and line feed after the AT command. Jinan USR IOT Technology Limited www.pusr.com... -
Page 31: Sms At Commands
If we know the phone number of the SIM card in G771-E, we can also query or modify the parameters of it by sending SMS AT command. For example: query firmware version, there is a carriage return and line feed after the AT command. Jinan USR IOT Technology Limited www.pusr.com...
Need help?
Do you have a question about the USR-G771-E and is the answer not in the manual?
Questions and answers