USR-N540-H7-4 is a 4-port RS485 to Ethernet Converters. RS485 to Ethernet converter can realize bi-directional transparent transmission between RS485 and network.
The USR-N540 quad 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 four 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.
| Processor | ST Cortex-M7 |
| Basic Frequency | 400MHz |
| Flash | 128K+4M byte |
| Ethernet | |
| Port Number | 1 |
| Interface Standard | 8 pin 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,Web socket,httpsd client |
| Receive Buffer | Max 16k bytes buffer |
| Serial | |
| Port Number | 4 RS485 Ports, can work at the same time) |
| Interface Standard | RS-485: 2 wire (A+,B-) half-duplex |
| Data Bits | 7,8 |
| Stop Bit | 1,2 |
| Parity Bit | Even,Odd |
| Baud Rate | 600bps ~ 921600 bps |
| Flow Control | XON XOFF |
| Buffer | Send and receive 2k bytes respectively |
| Protection | RS-485: anti-static 2KV,lightning protection |
| RS-485 Pull-up and Pull-Down Resistor | 2.2 KΩ |
| 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 | 222 x 122 x 29 mm (including shell and terminals) |
| Operating Temp. | -40 ~ 85°C (industry) |
| Storage Temp. | -40 ~ 85°C, 5 ~ 95% RH (no condensation) |
| Input Voltage | DC 9 ~ 36V |
| Working Current | 53mA @ 12V |
| Power | <1W |
| More | |
| Certificate | CE,FCC,ROHS |
| Warranty | 2 years |
4.9
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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
A We ship products through reliable courier services such as DHL, UPS, and FedEx. Shipping fees and delivery times may vary depending on the destination. You will receive a tracking number once your order has been dispatched, allowing you to track the status of your shipment. Please note that shipping times may vary based on location and availability.
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
★ ★ ★ ★ ★ 16/08/2024
Good service!
(156)
★ ★ ★ ★ ★ 23/07/2024
Good!
(982)
★ ★ ★ ★ ★ 23/07/2024
Good quality!
(982)