Features of entry-level Modbus to Ethernet converters USR-TCP232-410S.

● 1 RS232 and 1 RS485 Modbus to Ethernet converters
● 1 RS232 and 1 RS485 Modbus Serial to Ethernet Converters
● Power supply accepts wide voltage input range DC 5-36V
● 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 1 RS-232,1 RS-485 serial port to 1 10/100Base-T(X) self-adaptive Ethernet interface
● Configuration via Web Server page, AT commands, and Windows Utility

8*RS485 Ports Serial Ethernet Converter is designed to realize bidirectional data transparent transmission between the serial port and the Ethernet port. The 8 RS485 ports can work independently and does not affect each other. Each ports can be configured for different baud rates. It supports 600bps~921600bps wide baudrate.
● 8 serial ports support RS485 communication, indicator lights (TX/RX)
● Functions of Modbus gateway, Modbus RTU to Modbus TCP, Modbus polling
● Support TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client working modes
● Support virtual serial port and provide corresponding software USR-VCOM
● Serial baud rate from 600bps to 921.6K bps; Parity of None, Odd, Even
● Functions of Modbus gateway, Modbus RTU to Modbus TCP, Modbus polling

The N510-H7 MQTT Gateway is an industrial device specifically designed to implement an Industrial Internet of Things (IIoT) data collection system. It allows bidirectional communication between Modbus field equipment and an MQTT broker. It provides a Modbus RTU master interface on RS232/RS485/RS422 and Modbus TCP over Ethernet. Variables can be read from Modbus slave devices on change or at fixed time intervals and are sent to the MQTT broker with optional SSL/TLS client certificate authentication. It also can realize bi-directional transparent transmission between RS232/RS485/RS422 and network.

●Configurable TCP/Http/MQTT/Https Mode, GET/POST Methods
●Modbus Gateway: Modbus RTU to TCP, Modbus RTU to JSON, Modbus Polling
●Configure and Read Multiple Slave IDs, Selectable Register Address data
●Parameter Data type, Byte Swapping Conversion and Scaling factor enabled
●Configurable JSON Format for Packet forwarding
●Support 16 Topics, length adjustable
●Easy MQTT settings by web Browser configuration
●SSL/TLS function,supports bi-directional verification to ensure the security of data transmission
●Edge computing function, supports configuration of 32 nodes. Data can be reported to the server actively
●Supports connection to AWS ( Amazon Cloud) and many IOT clouds

1 port RS485 Ethernet device servers USR-N510-H7-4 can realize bi-directional transparent transmission between RS485 and network.

● 1-port 485 Ethernet device servers
● Power supply accepts wide voltage input range DC 5-36V
● Modbus Gateway: Modbus RTU to Modbus TCP, Modbus Polling
● Support flow control XON/XOFF
● Configuration via Web Server page, AT commands, and Windows Utility
● MQTT/SSL/Modbus RTU to JSON/SNMP/Telnet/Edge Computing(Special firmware, contact sales)

2-port serial to Ethernet servers USR-N520 can realize transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface.

● 2-port RS-232/422/485 serial to Ethernet servers
● Power supply accepts wide voltage input range DC 5-36V
● 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 2 RS-232, RS-485/422 3IN1 serial port to 1 10/100Base-T(X) self-adaptive Ethernet interface
● Configuration via Web Server page, AT commands, and Windows Utility

USR-N520 is 2-port serial to Ethernet converter. It adopts Cortex-M7 solution,which has a main frequency up to 400MHz, powerful performance, fast transmission speed, and high reliability. Equipped with a deeply optimized TCP/IP stack, built in hardware and software watchdog and a variety of keepalive mechanisms,USR-N520 keeps online all the time. It supports TCP Client, TCP Server, UDP Client, UDP Server and HTTPD Client working modes, achieves data transparent transmission via simple configuration.

● Supports 2 serial ports working independently.
● Supports 5-36V wide voltage input, with reverse polarity protection.
● Supports connecting to Virtual COM Port Driver (USR-VCOM).
● Supports static IP and DHCP client.
● Supports Modbus RTU to Modbus TCP protocol conversion.
● Multiple hardware protection, ESD level4 (air±15KV, contact±8KV), Surge level3 (±2KV), EFT level3 (±2KV).
● Supports configuring parameters via built-in webpage.
● Supports upgrading firmware via built-in webpage and configuration software, more convenient.
● Supports keepalive mechanism to quickly detect the dead connections and reconnect.
● Supports hardware watchdog, automatically restarts when the device goes down.
● Supports websocket for bidirectional data transmission between a maximum of 16 websocket clients and any serial port.
● Supports serial and network AT commands.
● Supports UDP broadcast function.

USR-N540-H7-4 is a 4-port RS485 to ethernet Converters. USR IOT's RS485 to ethernet Converters USR-N540 can realize bi-directional transparent transmission between RS485 and network.

● 4-port RS485 Serial to Ethernet Converters
● Power supply accepts wide voltage input range DC 9-36V
● Support TCP server/client, UDP server/client,https client, Virtual COM
● Support Modbus RTU to Modbus TCP, Modbus Polling
● Support flow control XON/XOFF
● Support 4 RS-485 Ports to TCP/IP 10/100Base-T(X) self-adaptive Ethernet interface
● Configuration via Web Server page, AT commands, and Windows Utility
● MQTT/SSL/Modbus RTU to JSON/SNMP/Telnet/Edge Computing(Special firmware, contact sales)

8-port RS232/422/485 serial device servers USR-N668.

● 8-port RS-232/422/485 serial device servers
● Power supply accepts wide voltage input range AC 85-265V
● 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 8 software selectable RS-232, RS-485/422 RJ45 serial port to 1 10/100Base-T(X) self-adaptive Ethernet interface, rack-mount
● Configuration via Web Server page, AT commands, and Windows Utility

1 port Ethernet device servers USR-N510 can realize bi-directional transparent transmission between RS232/RS485/RS422 and network.

● 1-port RS-232/422/485 Ethernet device servers
● Power supply accepts wide voltage input range DC 5-36V
● 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 1 RS-232, RS-485/422 3IN1 serial port to 1 10/100Base-T(X) self-adaptive Ethernet interface
● Configuration via Web Server page, AT commands, and Windows Utility
● MQTT/SSL special firmware (contact sales)

USR-N540 is a 4-port Serial to IP Converters. USR IOT's serial to IP Converters USR-N540 can realize bi-directional transparent transmission between RS232/RS485/RS422 and network.

● 4-port RS-232/422/485 Serial to IP Converters
● Power supply accepts wide voltage input range DC 9-36V
● 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 4 RS-232, RS-485/422 3IN1 serial port to 1 10/100Base-T(X) self-adaptive Ethernet interface
● Configuration via Web Server page, AT commands, and Windows Utility