USR-LTE-7S4 Embedded 4G LTE Module

Communication Expert of Industrial IOT
USR-LTE-7S4 Embedded 4G LTE Module
USR-LTE-7S4 Embedded 4G LTE Module
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Price: $65.60
Availability: In Stock
Model: USR-LTE-7S4
Manufacturer: USR IOT
Average Rating: Not Rated

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User Manual:

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4G Module USR-LTE-7S4 is used to transmit data between serial port and network server by Operator network. It is configured by AT Command and work in dual transparent transmission mode. USR-LTE-7S4 is in small size, which is widely used in LTE, WCDMA, TD-SCDMA. It works in transparent transmission mode and more functional software. It has high speed and less time-delay , supports FTP protocol. We add Watch dog function to ensure the stability if work for a long time.

Basic Parameter


Size 44.4 x 41.8 x 12.8(mm)
Operating Temp. -20 ~ 70°
Storage Temp. -40 ~ 125°, 5 ~ 95% RH(no condensation)
Input Voltage DC 5 ~ 16 V
Working Current Average: 55 ~ 127mA, max: 147mA(12v)
Standard Frequency Range

TDD-LTE: Band 38/39/40/41

FDD-LTE: Band 1/3

WCDMA: Band 1/8

TD-SCDMA: Band 34/39

GSM / GPRS / EDGE: Band 3/8


  • 5 model 12 frequency, supports TDD-LTE, FDD-LTE, WCDMA, TD-SCDMA, GSM
  • Based on embedded Linux system, in high stability
  • Support RNDIS remote network driver interface, USB connection
  • 4 Line network connection at same time, TCP and UDP
  • 10KB Serial data buffer each link, data buffer will not lose
  • Registration package and Heartbeat package
  • Parameter is configured by SMS
  • Work mode: Network transmission and HTTPD
  • Basic Command Set
  • Socket distribution protocol, can send data to different socket
  • Upgrade firmware for your MCU with FTP
  • Upgrade firmware for your 7S4 with FTP
  • Send message by simple AT Command
  • Synchronous and adaptive Serial port baud rate
  • Its pin is compatible with 2G module 7S2/7S3, Simple replacement

Configuration method

1)      Webpage configuration

2)      AT command configuration

Working Mode Introduction

1. Network transparent transmission mode

In this mode, User’s device can send data to specifie server by LTE network. G780 support 4 socket links. Four links are mutual independence.

2. HTTPD Client Mode

In this mode, User’ device can send/obtain data to/from HTTP server directly. The data will sent to Web server (apache, IIS, tomcat etc) in Http (GET/POST) mode as long as sending data in formal format. User can utilize the scripting language like PHP, ASP as database storage.

3. SMS transparent transmission mode

In this mode, user’s device can send SMS to specified phone number, or send the SMS from phone to device.

4. AT command

Whatever G780 working in any mode, user can send specified command to G780 to switch to AT command mode.

Tags: 4G Module
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