USR-TCP232-E2 is a dual UART to Ethernet converter module, industrial design, built-in fully optimized TCP/IP protocol stack, stable and reliable; supports virtual serial port VCOM; supports DNS domain name resolution, Keep-alive mechanism, hardware watchdog.

●Support TCP server, TCP client and UDP, HTTP operating modes
●Support RS-485 enable pin of an external RS-485 transceiver
●Support flow control CTS/RTS, XON/XOFF
●Auto-MDI/MDIX,RJ45 port with 10/100Mbps
●Flexible data packet condition for the serial interface
●Support DHCP to configure IP address and other network configuration parameters
●Support DNS for remote server domain name lookup
●Support Modbus RTU to Modbus TCP/UDP
●Support Modbus over TCP/UDP
●Support three configuration method: serial AT command, PC software and web page
●Support local firmware upgrade by PC software
●Support “Keep-Alive” to guarantee TCP connection
●Support user password authorization for security
●Industrial temperature range (-40℃~+85℃)

Pin-type GPRS modules USR-GPRS232-7S3 can realize the bidirectional transparent transmission function of UART to GPRS.

● Support public and APN network access
● Support heartbeat, Always Online mode, can keep connection with server
● Support KEEP-ALIVE, to maintain connection if there is no heartbeat packet
● Support network connection in Max 4 Channel, can send data from serial port to different servers
● Support SMS AT Command mode
● Support SMS transparent transmission, Network transparent transmission, httpsD, UDC and other working modes

USR-GM3 are low-power transparent transmission GSM GPRS modules which can realize the UART's bidirectional transparent transmission to GPRS.

● Low Power GSM Modules
● Support public and APN network access
● Support heartbeat, Always Online mode, can keep connection with server
● Support KEEP-ALIVE, to maintain connection if there is no heartbeat packet
● Support network connection in Max 4 Channel, can send data from serial port to different servers
● Support SMS AT Command mode
● Support SMS transparent transmission, Network transparent transmission, httpsD, UDC and other working modes

Serial to ethernet converter modules USR-TCP232-T2 can transmit data transparently between TCP/IP and TTL, and it can also be applied in RS232/ RS485 by level shift circuit.

● Based on Cortex-M0 core.
● Pin type.
● Low Power, fast-speed and high-efficiency.
● Supports TCP server/client, UDP server/client
● Web page configuration / DHCP & DNS
● Virtual COM

Ethernet to UART modules USR-TCP232-S2 can transmit data transparently between TCP/IP and TTL, which can be applied in RS232/ RS485 by level shift circuit. USR-TCP232-S2 is a tiny size embedded Ethernet Module which can realize data bidirectional transparent transmission between TTL and Ethernet Port.

● Cortex-M0 Core
● SMD type
● Support POE design
● Web page configuration
● Cost-effective, fast speed and high efficiency
● Supports TCP server/client, UDP server/client
● Virtual COM

3-TTL UART to Ethernet modules USR-TCP232-ED2.

● Support TCP server/client, UDP server/client, https client, Virtual COM
● Support Modbus RTU to Modbus TCP
● Support flow control CTS/RTS, XON/XOFF
● Support 3 TTL serial ports working independently
● Configuration via Web Server page, AT commands, and Windows Utility

USR-WIFI232-B2 is an embedded serial to 802.11 b/g/n wifi module, with external antenna, and it can connect traditional serial device and MCU controlled device with wifi network to realize control and management.

● Converts UART(3.3V TTL) to wifi or Ethernet
● Supports TCP server/client, UDP server/client,https client, Virtual COM
● Supports Modbus RTU to Modbus TCP
● Supports multiple networking mode with 1 RJ45 ethernet port
● 1 TTL Serial Ports Supporting Data Rates of up to 460.8Kbps
● 32 simultaneous client connections to Soft AP interface

USR-WIFI232-A2 are low cost embedded 802.11 b/g/n WiFi modules which can convert UART(3.3V TTL) to WiFi or Ethernet. Embedded 802.11 b/g/n WiFi Modules USR-WIFI232-A2, On-board Antenna, 802.11 b/g/n, convert UART(3.3V TTL) to WiFi or Ethernet.

● Embedded wireless Device Servers ● Supports TCP server/client, UDP server/client, https client, Virtual COM
● Supports Modbus RTU to Modbus TCP
● Supports multiple networking mode with 1 RJ45 ethernet port
● AP/STA/AP+STA
● 32 simultaneous client connections to Soft AP interface

WH-LTE-7S1 is a LTE CAT 1 communication module, which supports LTE and GSM, supports TCP/UDP transparent transmission, SMS transmission and configuration, and also supports HTTP and MQTT protocol. At the same time, it supports AT instruction mode to realize full command operation,meets the needs of different application scenarios.
WH-LTE-7S1-E covers the mainstream frequency bands of European operators. This model is fully PIN compatible with CAT 4 7S5 series and using a double inline package design, convenient for customers to switch and install.
●5-16V wide power supply range
●LTE Cat 1 & GSM
●Transparent transmission and AT command mode
●HTTP,MQTT,SMS
●SMS,NET,Serial AT command configuration
●FTP Upgrade and FOTA self-upgrade
●Socket Distribution Protocol