USR-N520 is 2 serial Port Secure Serial Device Server which can connect RS-232/485 serial devices to the TCP/IP network. It supports bi-directional communication.
The USR-N520 dual serial server is used to realize the bidirectional transparent transmission of data from the serial port to the Ethernet port. Users don't need to worry about the specific details, and the protocol conversion is done inside the server. One side of the serial port realizes the transparent transmission of serial port data, and the other side of the Ethernet port is TCP/IP packets, and the working details can be specified through simple settings, and the two serial ports are independent of each other. You can set it up on a web page inside the server or through the setting software, and you can save it forever at a time.
| 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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Q How to make a payment?
E****R 18/11/2024
A We accept various payment methods including bank transfers, credit cards, and PayPal. Please refer to our payment page during checkout for detailed instructions on how to complete your payment. If you have any questions or need assistance with payment, please contact our customer support team.
18/11/2024
Q How will the products be shipped?
T****k 16/08/2024
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16/08/2024
Q How is warranty provided?
L****Y 08/05/2024
A We offer a warranty on all of our products. The warranty period and conditions vary depending on the product category. For specific warranty information, please refer to the product page or your purchase agreement. If you encounter any issues with a product during the warranty period, please contact our customer service team with your proof of purchase, and we will guide you through the warranty claim process.
08/05/2024
★ ★ ★ ★ ★ 28/03/2025
The quality of this brand model is exceptional, far surpassing my expectations.The craftsmanship and materials used in this brand model are top-notch.I am impressed with the durability and build quality of this brand model.
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