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Description
USR N520 2-PORT SERIAL-ETHERNETAn Industrial 2 Port Ethernet Device Server With Bi directional Transparent Transmission Between RS232 RS485 RS422 and Network. 2 Port Ethernet Device Server Specifications System Information Processor Cortex M4 Basic Frequency 120MHz Flash 512K byte Ethernet Port Number 1 Interface Standard RJ45 Rate 10 100 Mbps MDI MDIX, auto switch between cross and direct connection Protection 2KV electromagnetism isolation, shell insulation blocking Network
An Industrial 2 Port Ethernet Device Server With Bi-directional Transparent Transmission Between RS232/RS485/RS422 and Network.
2 Port Ethernet Device Server
Specifications
| System Information | |
| Processor | Cortex-M4 |
| Basic Frequency | 120MHz |
| Flash | 512K byte |
| Ethernet | |
| Port Number | 1 |
| Interface Standard | RJ45 |
| Rate | 10/100 Mbps MDI/MDIX, auto switch between cross and direct connection |
| Protection | 2KV electromagnetism isolation, shell insulation blocking |
| Network Protocol | IP, TCP, UDP, DHCP, DNS, https, ARP, ICMP, Websocket, httpsD Client |
| Receive Buffer | Max 16k bytes buffer |
| Serial | |
| Port Number | 2 (RS232/485/422*2), 2 serial ports can simultaneously work at the different working modes. |
| Interface Standard |
RS-232: TX/RX/RTS/CTS
RS-485: A+/B-
RS422: TX+/TX-/RX+/RX-
|
| Data Bits | 5, 6, 7, 8 |
| Stop Bit | 1, 2 |
| Check Bit | None, Even, Odd, Space, Mark |
| Baud Rate | 600 bps ~ 230K bps |
| Flow Control | RTS/CTS/Xon/Xoff |
| Buffer | Send and receive 2k bytes respectively |
| Protection | ESD protection, anti-surge |
| SocketA | |
| Transparent Transmission Mode | TCP Server/TCP Client/UDP Server/UDP Client |
| Supported Function | Networking printing, Modbus Gateway, USR-Cloud, self-defined registration package, self-defined network and serial heartbeat package |
| SocketB | TCP Client/UDP Client |
| Software | |
| Virtual Serial（USR-VCOM） | Windows 2000 or higher (32 bit/64 bit) |
| Configuration | Built-in webpage, computer set-up software, serial command |
| Basic Parameter | |
| Size | 150 x 79 x 30 mm |
| Operating Temp. | -40 ~ 85°C |
| Storage Temp. | -45 ~ 105°C, 5 ~ 95% RH |
| Input Voltage | DC 5 ~ 36V |
| Working Current |
95mA (aver) @ 5V
45mA (aver) @ 12V
|
| Power | <1W |
| More | |
| Certificate | CE, FCC, ROHS, KCC and WEEE pending |
| Warranty | 2 years |
| Accessory | 12V power supply, serial line, cable, converter |
Downloads
Additional Information
| Device | Server |
| Type | 2 Port | Ethernet | Device |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 1
Hard to rub in. Leaves strong white residue
Style: Kids Mineral Sunscreen 5 oz Lotion - 50 SPF
So hard to rub in. If you have squirming running toddlers this is impossible to apply.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
★★★★★ 5
Amazing mineral base sunscreen!
Style: Kids Mineral Sunscreen 5 oz Lotion - 50 SPF
Fantastic mineral base sunscreen! Clean with no chemicals.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 5
It’s nice, and it works!
Size: Pack of 1
This is a great product. It’s smooth and soothing - great for chapped lips. The flavor is nice too. Best of all, it works! My lips are prone to getting freckles, and I’m not getting any since I started using this. I recommend this, and the sunscreen by the same company. I use SPF 50 for sensitive skin.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Amazing
Size: Pack of 1
Great stuff, I even put it on a soldering burn on my arm and the swelling and redness went away and it didn’t blister, amazing
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Great sunscreen
Size: Pack of 1
Love it! Not greasy, rubs in well, & doesn't smell. Doesn't leave the typical white sheen if you blend in well. Great to add foundation over. Ingredients are less chemicaly than other products.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026