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Home / Products / Industrial Serial to Ethernet Converters [MQTT/SSL] / 2 Port Secure Serial Device Server[MQTT/SSL]
Home / Products/ Industrial Serial to Ethernet Converters [MQTT/SSL] / 2 Port Secure Serial Device Server[MQTT/SSL]
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USR-N520

USR-N520

2 Port Secure Serial Device Server[MQTT/SSL]

2 Port Secure Serial Device Server[MQTT/SSL]


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.

2 Port Secure Serial Device Server

Model name

Description

USR-N510

1 RS232/485/422 to Ethernet device server

USR-N510-4

1 RS485 to Ethernet device server

USR-N520

2 RS232/485/422 to Ethernet device server

USR-N520-6

2 RS232/485 to Ethernet device server

USR-N540

4 RS232/485/422 to Ethernet device server

USR-N540-4

4 RS485 to Ethernet device server

USR-N580

8 RS485 to Ethernet device server

Item Parameter Description
Hardware
Parameters
Input Voltage DC 5.0~36.0V
Input Current 67mA @12V
Dimensions 150*98.8*30 mm (L*W*H, 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

 

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