USR IOT USR-G771-E User Manual
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USR IOT USR-G771-E User Manual

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USR-G771-E User Manual
Document version: V1.0.5
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Summary of Contents for USR IOT USR-G771-E

  • Page 1 Technical Support: USR-G771-E User Manual Document version: V1.0.5...

  • Page 2: Table Of Contents

    6.11. Restore to Factory Default Settings ......................41 6.12. Timeout Restart ............................42 7. AT Commands ..............................42 7.1. AT Command Settings ..........................42 7.2. Serial AT Commands ..........................43 7.3. Network AT Commands ..........................43 7.4. SMS AT Commands ..........................44 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

    LTE FDD Rel.13 10MbpsDL/5Mbps UL speed GPRS 85.6KbpsDL/85.6Kbps UL(multi-slot class 12) LTE FDD B1/B3/B7/B8/B20 Bands 900/1800MHz 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 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: Mqtt Mode

    USR-G771-E User Manual Technical Support: 5.4. MQTT Mode Note: This function is only supported by firmware version 1.3.25 and above. Jinan USR IOT Technology Limited www.pusr.com...

  • Page 19: Generic Mqtt

    Cloud, Huawei Cloud, AWS Cloud, etc., and supports reconnection interval configuration to adapt to different MQTT servers. Support SSL/TLS encryption, and the authentication mode can choose not to verify the certificate, one-way authentication certificate and two-way authentication certificate. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 20 Transparent mode, distribution mode Transparent mode mode Clean session MQTT protocol connection flag, used to control the lifetime of Enable session state. Will messages enable MQTT connection flag, when the network connection is closed, the Enable Jinan USR IOT Technology Limited www.pusr.com...

  • Page 21: Subscribe/Public Topics

    The identifier defaults to the topic number, and the identifier and payload are separated by commas. The message format is: symbol, <payload> Jinan USR IOT Technology Limited www.pusr.com...

  • Page 22: Aws Iot Service

    USR-G771-E User Manual Technical Support: 5.4.3.AWS IoT Service G771-E supports connecting to AWS IoT platform via MQTT. Visit https://aws.amazon.com/, log in to the IoT console, choose AWS Management Console. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 23 USR-G771-E User Manual Technical Support: 5.4.3.1. AWS IoT Configuration 1. In Things, click to Create things--Create single thing. 2. Edit the Thing name, click Next. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 24 USR-G771-E User Manual Technical Support: 3. Choose Auto-generate a new certificate. Then click Next. 4. Create Policy. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 25 5. Edit the Policy name, change the Policy effect to Allow, the Policy action and Policy resource to *. 6. After created, return to the previous certificate interface, attach the new created policy to this certificate. Then click Create thing. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 26 USR-G771-E User Manual Technical Support: 7. Download 4 certificates in below interface. Then click Done. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 27 USR-G771-E User Manual Technical Support: 8. Now new thing has been added successfully. 9. In Settings, copy the AWS server address that needs to be filled in G771-E device. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 28 Upload the created certificates to G771-E device. We need to upload the Server CA certificate(rootCA.pem), Client certificate(certificate.pem.crt) and Client private key(private.pem.key). After configuring all parameters, click to Set and save all parameters. The device will restart automatically. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 29 In AWS IoT platform, click MQTT test client, publish data from AWS to the subscribed topic of G771 device , we can receive it from the serial port of G771-E device. Subscribe the publish topics of G771-E device in AWS, we can receive the data sent from the serial port of G771-E device. Jinan USR IOT Technology Limited www.pusr.com...
  • Page 30 USR-G771-E User Manual Technical Support: In this way, we can achieve the bi-directional communication between serial device and AWS cloud via G771-E device. Jinan USR IOT Technology Limited www.pusr.com...

  • Page 31: 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 32 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 33: 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 34: 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 35: 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 36: Ssl/Tls Encryption

    SSL certificate verification, you need to configure the SSL encryption parameters. It supports SSL3.0, TLS1.0, TLS1.1, and TLS1.2 versions, and the authentication method can choose not to verify certificate, verify server certificate, and two-way verification authentication. Jinan USR IOT Technology Limited www.pusr.com...

  • Page 37: 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 38 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 39: Ntp

    USR-G771-E User Manual Technical Support: 6.7. 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 40: Ftp Upgrade

    USR FTP Upgrade protocol. 6.9. 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 41: 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 42: Timeout Restart

    USR-G771-E User Manual Technical Support: 6.12. 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 43: 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 44: 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...

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