---
lang: "en"
title: "USR-N510-H7-4 1-Port RS485 Ethernet Device Server"
sku: "USR-N510-H7-4"
canonical_url: "https://shop.marcomweb.it/en/device-server/usr-n510-h7-4-1-port-rs485-ethernet-device-server"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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USR-N510-H7-4: 1-Port RS485 Ethernet IoT Device Servers Gateway (MQTT/SSL)

USR-N510 is a definitive serial converter for connecting RS232/RS485/RS422-based equipment over an Ethernet network, allowing you to replace dial-up serial modem connections. To achieve transparent bidirectional transmission between COM port and TCP/IP, and manage the COM port on remote devices via the network. To communicate simultaneously with multiple serial devices over a LAN or WAN.

The USR-N510-H7-4 1-port serial to Ethernet adapter enables transparent bidirectional transmission between RS485 and the network. It supports Modbus RTU to TCP and Modbus Polling.

- Edge Computing: Automatic data acquisition, processing (computing), and sending at the network edge
- Data Security: SSL/TLS encryption in HTTP, MQTT, and TCP clients
- Industrial Design: EMC protection, integrated watchdog
- Serial Port: 1 x RS485

## Technical Features

- Processor: ST Cortex-M7
- Basic Frequency: 400 MHz
- Flash: 128K + 4M byte

#### Ethernet

- Number of Ethernet ports: 1
- Interface Standard: 8-pin RJ45
- Speed: 10/100 Mbps, MDI/MDIX, automatic switching between crossover and direct connection
- Protection: 2 KV electromagnetic isolation, chassis isolation block
- Network Protocols: IP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP, WebSocket, Httpd client
- Receive Buffer: Max 16k bytes

#### Serial

- Number of ports: 1
- Interface Standard: RS-485: 2-wire (A+, B-) Half-Duplex
- Data Bits: 7, 8
- Stop Bits: 1, 2
- Control Bit / Parity: Even, Odd
- Baud Rate: 600 bps ~ 921600 bps
- Flow Control: XON/XOFF
- Buffer: 4k bytes each for send and receive
- Protection: RS-485: 2 KV anti-static, lightning protection
- RS-485 Pull-up and Pull-Down Resistor: 2.2 KΩ

- Operating Temperature: -40 ~ 85°C (industrial)
- Storage Temperature: -40 ~ 85°C, 5 ~ 95% RH (non-condensing)
- Input Voltage: DC 5 ~ 36V
- Working Current: 53mA @ 12V
- Power: <1W
- Certifications: CE, FCC, ROHS
- Dimensions: 88 x 81 x 24 mm

---

Source: https://shop.marcomweb.it/en/device-server/usr-n510-h7-4-1-port-rs485-ethernet-device-server

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.