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Wireless Serial Device Server
with EoVDSL Interface,
128-bit encryption

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Rugged Operating System (ROS®) Software User Guide

Product Description

The RuggedWIRELESS™ RS920W is an industrially hardened Wireless Serial Device Server that has been specifically designed to operate reliably in electrically harsh and climatically demanding environments. The RS920W features a wireless LAN (WLAN) interface combined with 2 serial ports and one Ethernet over VDSL (EoVDSL) interface. The RS920W allows you to connect RS-232/422/485 serial devices at up to 230 kbps and for wireless access and control via an IEEE 802.11i wireless LAN. The RS920W can also act as a wireless access point and in combination with the EoVDSL interface, can aggregate many devices at a remote location back to the central control room using existing telephone grade cable (or other legacy serial cabling) at distances of up to 5km.

The RS920W functions as a wireless “client/bridge” within an IEEE 802.11b/g compliant WLAN. This allows the RS920W to transfer data for connected serial port and Ethernet devices via an installed Wireless Access Point. The RS920W is capable of wireless data rates of up to 54Mbps whose bandwidth is available for the combined device traffic volume emanating from two serial ports and two Ethernet ports. Static authentication support is provided by WPA-PSK. For authentication by an access point and a RADIUS server, the RS920W supports IEEE 802.1X/ RADIUS for wireless user traffic and distributing dynamic encryption keys. All wireless communications are protected by the very latest “robust security networks” features including strong encryption protocols using WPA with TKIP and even WPA2/802.11i with 128-bit AES encryption. Static authentication support is provided by WPAPSK. For additional centralized control, the RS930W also supports IEEE 802.1X/RADIUS for wireless user traffic and distributing dynamic encryption keys.

The RS920W has an operating temperature range of -40 to +85°C without the use of internal cooling fans allowing it to be placed in almost any location. The RS920W also has an integrated power supply with a wide range of voltages for worldwide operability, and is compliant with EMI and environmental standards for utility substations, industrial manufacturing, process control and intelligent transportation systems applications.

The RS920W is backed by a five year warranty and unsurpassed technical support.

Product Features & Specs

Interface Ports

  • 1 Ethernet over VDSL (EoVDSL) interface
  • 2 RS485/RS422/RS232 Serial Ports (DB9 of RJ45)
  • Serial Fiber Interface (ST) available

Cyber Security Features

  • WPA (Wi-Fi Protected Access) with TKIP for enhanced security and encryption
  • WPA2/11i CCMP for robust security and 128-bit AES encryption
  • IEEE 802.1X/RADIUS using EAP-PEAP for secure "enterprise class" authentication configuration
  • Pre-shared Key Mode (PSK) for "personal" mode authentication configuration
  • Multi-level user passwords
  • SSH/SSL (128-bit encryption)
  • Enable/disable ports, MAC based port security
  • Port based network access control (802.1x)
  • VLAN (802.1Q) to segregate and secure network traffic
  • RADIUS centralized password management
  • SNMPv3 authentication and 56-bit encryption

Ethernet Over VDSL Port Characteristics

  • Up to 5km LAN segments
  • Symmetric data rates up to 50 Mbps
  • Automatically selects fastest data rate based on distance and quality of cable
  • Software selectable to be master or slave
  • Frequency Division Multiplexing (FDM)

Rugged Operating System (ROS®) Features

  • Simple plug and play operation - automatic learning, negotiation, and crossover detection
  • MSTP (802.1Q-2005, formerly 802.1s)
  • RSTP (802.1D-2004) and Enhanced Rapid Spanning Tree (eRSTP™) network fault recovery (<5ms)
  • Quality of Service (802.1p) for real-time traffic
  • VLAN (802.1Q) with double tagging and GVRP support
  • Link aggregation (802.3ad)
  • IGMP Snooping for multicast filtering
  • Port Rate Limiting and Broadcast Storm Limiting
  • Port configuration, status, statistics, mirroring, security
  • SNTP time synchronization (client and server)

RuggedRated™ 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)
  • -40°C to +85°C operating temperature (no fans)
  • 20 AWG galvanized steel enclosure
  • DIN or panel mounting options provide secure mechanical reliability
  • Hazardous Locations:
    Class 1, Division 2

Universal Power Supply Options

  • Fully integrated power supplies
    (no external adaptors)
  • Popular low-voltage DC ranges:
    24VDC, 48VDC
  • Universal high-voltage range:
    88-300VDC or 85-264VAC
  • CSA/UL 60950 safety approved to +85°C
  • Screw down terminal blocks ensure reliable maintenance free connections