2 Ports Serial RS232/RS485 to Ethernet Converter USR-N520-MQTT

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2 Ports Serial RS232/RS485 to Ethernet Converter USR-N520-MQTT

USR-N520 is 2 serial Port RS232/RS485 Secure Serial Device Server which can connect RS-232/485 serial devices to the TCP/IP network. It supports bi-directional communication.

● Independent 2 serial ports.(3-in-1 serial port RS232/RS485/RS422 Optional)
● 5-36V wide voltage input.
● Modbus RTU to Modbus TCP, Modbus Polling, Modbus to JSON
● Flow control CTS/RTS, XON/XOFF
● Secure Client Operation Mode: TCPS, HTTPS. MQTTS
● SSL/TLS Encryption
● Modbus RTU Master, Edge computing
● Hardware watchdog, automatically restarts when the device goes down.

Item	Parameter	Description
Hardware Parameters	Input Voltage	DC 5.0~36.0V
	Input Current	67mA @12V
	Dimensions	15098.830 mm (LWH, including terminals and mounting ears)
	Installation	Panel mounting
	Ground Screw	1
	Operating Temperature	-40~85℃
	Storage Temperature	-40~105℃
	Operating Humidity	5%～95% RH(non-condensing)
	Storage Humidity	5%～95% RH(non-condensing)
	Certifications	CE/FCC/ROSH
Interface Parameters	Ethernet Port Spec.	RJ45, 10/100Mbps, auto MDI/MDIX
	Ethernet Port No.	1
	Serial signals	RS232: RXD, TXD, GND, RTS, CTS RS485:A+，B-,GND
	Serial Port No.	2
	Serial Baud Rate	600-230.4K(bps)
	Data Bit	7, 8
	Parity	None, Even, Odd
	Flow Control	None, RTS/CTS (RS-232 only), XON/XOFF
	RS-485 Pull-up and Pull-down Resistor	2.2KΩ
Hardware Protection	ESD-IEC61000-4-2 Level 4	Air±15KV, contact±8KV
	Surge-IEC61000-4-5 level 3	±2KV
	EFT-IEC61000-4-4 Level 3	±2KV
Software Parameters	Network Protocol	IP/TCP/UDP/ARP/ICMP/IPV4/DHCP/DNS
	IP Mode	Static IP, DHCP
	Modbus Gateway	Support
	Websocket	Support
	HTTP Client	Support
	UDP Broadcast	Support
	User Configuring	Setup utility, webpage, AT commands
	Serial Packets Cache	Dynamic packet cache. For example: When the packet length is 10 byte, the serial port can cache 450 packets(4.5KB). When the packet length is 1460 bytes, the serial port can cache 10 packets(14.6KB).
	Ethernet Packets Cache	48Kbyte

2 Port Secure Serial Device Server

Utilities

[Setup Software] H7 Version

Documents

[Datasheet] USR-N520-H7 Datasheet

[AT Command Manual]ARM Cortex-M7 Series AT command manual V1.0.0