RUGGEDCOM RS400

The RUGGEDCOM RS400 is a utility grade, serial device server with an integrated, fully managed Ethernet switch, designed to operate reliably in electrically harsh and climatically demanding environments. Featuring an integrated 4-port serial server, a 4-port managed Ethernet switch, and an optional V.90 modem, the RS400 is able to interconnect multiple types of intelligent electronic devices (IEDs) that have different methods of communication. Using the RS400 results in fewer connectivity devices, reducing overall system costs, and also extends the useful life of existing legacy IEDs, minimizing capital expenditure for new equipment.

Serial device server with integrated fully managed Ethernet switch with 128-bit encryption

Configure your RUGGEDCOM product

The RUGGEDCOM Selector lets you configure Siemens RUGGEDCOM products quickly, easily, and efficiently, by using targeted navigation through selection menus or by entering item numbers. Selected products can then be ordered directly by transferring the parts list into the Industry Mall.


Ethernet Ports

  • Integrated Ethernet switch – up to 4 ports

  • High performance and throughput Ethernet switching

  • Full IEEE 802.3x compliance

  • Non-blocking, store and forward switching

  • 10/100BaseTX, 10BaseFL, 100BaseFX options


Serial Device Server

  • Fully compliant EIA/TIA RS485, RS422, RS232 serial ports (software selectable) – DB9, RJ45, Phoenix style connectors

  • Transmit serial data over an IP network

  • Support for Modbus TCP, DNP 3, TIN serial protocols

  • Baud rates up to 230 Kbps

  • Point-to-point and multipoint modes

  • Convert Modbus RTU to Modbus TCP

  • Supports multiple Modbus masters


Rugged Rated for Reliability in Harsh Environments

  • Immunity to EMI and heavy electrical surges
    - Meets IEEE 1613 (electric utility substations)
    - Exceeds IEC 61850-3 (electric utility substations)
    - Exceeds IEC 61800-3 (variable-speed drive systems)
    - Exceeds IEC 61000-6-2 (generic industrial)
    - Exceeds NEMA TS-2 (traffic control equipment)

  • Fully independent 2kV (RMS) isolated serial ports

  • 40°C to +85°C operating temperature (no fans)

  • 18 AWG galvanized steel enclosure



RUGGEDCOM Operating System (ROS®) Features

  • Simple plug and play operation – automatic learning, negotiation, and crossover detection

  • Integrated secure management

  • Fast network fault recovery (<5 ms) with eRSTP™

  • Quality of service (802.1p) for real-time traffic

  • VLAN (802.1Q) and GVRP support

  • Port rate limiting and broadcast storm limiting

  • Port configuration, status, statistics, mirroring, security


Management Tools

  • Web-based, Telnet, CLI management interfaces

  • SNMP v1/v2/v3 (56-bit encryption)

  • Remote monitoring (RMON)

  • Rich set of diagnostics with logging and alarms


Universal Power Supply Options

  • Fully integrated power supplies (no external adapters)

  • Popular low voltage ranges: 24 VDC (10–36 VDC), 48 VDC (36–59 VDC)

  • Universal high-voltage range: 88–300 VDC or 85–264 VAC

  • CSA/UL 60950 safety approved -40°to +85°C