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 used in LTE, WCDMA, TD-SCDMA. It works in transparent
transmission mode and more functional software with high speed and less time delay, supports FTP protocol.
USR-LTE-7S4 is compatible with 2G module 7S2/7S3, user can replace 7S3 easily. We add Watch dog
function in firmware to ensure the stability if work for a long time.
Supports TDD-LTE(38,39,40,41), FDD-LTE(1,3), WCDMA(1,8), TD-SCDMA(34,39), GSM(3,8).
Based on embedded Linux system, in high stability.
Support RNDIS Remote Network Driver Interface (USB interface).
4 Line network connections at same time (TCP and UDP).
10KB Serial data buffer each link prevent data-losing.
Identity package and Heartbeat package.
Support configuring the parameters via SMS.
Work mode: Transparent mode and HTTPD client mode.
Configured with AT Command Set.
Socket distribution protocol, can send data to different sockets.
upgrade firmware for your MCU with FTP.
upgrade firmware for your 7S4 with FTP.
Send message by AT Command.
Synchronous and adaptive Serial port baud rate.
Its pins are compatible with 2G module 7S2/7S3, Simple replacement.