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  • GreatSpeed (GreatSpeed, a RIAS Company ) : GS-R250S Duo

    The Ethernet & USB Combo ADSL Router

    GS-R250S Duo - GreatSpeed Ethernet and USB ADSL Router GreatSpeed's GS-R250S Duo is an Ethernet & USB Combo ADSL router with the flexibility to share Internet access either via USB, Ethernet, or both ports. It features built-in LAN connections for supporting two PCs via USB port and Ethernet port simultaneously. It also provides IPSec Pass through.


    ADSL Standards:

    • ANSI T1.413 Issue 2, ITU 992.1 (G.dmt), ITU 992.2 (G.Lite)
    • ITU G.994.1 (G.hs) automatic mode sensing

    Data Rates:

    • Full Rate: Up to 8Mbps downstream/800Kbps upstream
    • G.Lite: Up to 1.5Mbps downstream/512Kbps upstream
    • Automatic rate adaptation in 32Kbps step

    ATM Standards:

    • ATM Adaptation Layer 5 (AAL5)
    • Up to 8 Virtual Circuit Connections (VCC)
    • Class of Services: UBR, CBR
    • ITU I.610 OAM F4/F5 Loopback

    WAN Protocols:

    • LLC Encapsulation and VC Multiplexing
    • IETF RFC1483/2684 Multiprotocols over ATM
    • IETF RFC1577 Classical IP over ATM
    • IETF RFC2516 PPP over Ethernet
    • IETF RFC2364 PPP over ATM
    • PPTP-PPPoA Relay Tunneling

    Routing Protocols:

    • Static Route and Dynamic Route: RIP V1 and RIP V2
    • Dynamic Host Configuration Protocol (DHCP) Server, Client and Relay
    • DNS Relay Agent, DNS Client
    • Network Address Translation (NAT)/Network Address Port Translation (NAPT)
    • Point-to-Point Protocol (PPP)
    Bridging Protocols:
    • IEEE 802.1d Transparent Bridging
    • Spanning Tree Algorithm (STA)
    • Up to 128 Learning MAC addresses
    • Bridge filter function
    • IETF RFC2516 PPP over Ethernet Relay
    • IETF RFC1483/2684 Bridged
    Application Support :
    • IPSec Pass Through
    • MS Netmeeting
    • Online Gaming
    • Peer-to-peer file transfer
    • HTTP server
    • FTP server
    • TELNET server

    Network Management:

    • Embedded Web based Graphical User Interface (GUI) configuration tool
    • Console Command Line access via serial interface or remote telnet
    • Firmware update and configuration backup via Web based GUI
    • TFTP firmware upgrade
    • SNMP V1 agent


    • PPP: Challenge Handshake Authentication Protocol (CHAP) and Password Authentication Protocol (PAP)
    • Password-protected access for console, Telnet and Web GUI configuration tool
    • NAT for firewall support

    Hardware Specifications:

    • LAN: Ethernet 10/100BaseT auto-sensing
    • WAN: RJ-11 ADSL Line
    • Console: RS-232 serial port
    • USB: V1.1 port
    • Dimensions: (W x L x H): 6.88" x 6" x 1.44"
    Hardware Features:
    • Ethernet Straight/Crossover Switch
    • Reset Button for restoring factory default configuration

    LED Status Indicators:

    • Power
    • ADSL: ADSL, Activity
    • LAN: Eth/Act, 10/100

    Power Requirement:

    • Input: 100 ~ 240 VAC, 60MHz, 0.5A
    • Output: +12 VDC, 1.0A


    • FCC part 15 class B
    • ITU-T K.21 standard compliant

    Package Contents:

    • GS-R250S Duo ADSL Router
    • RJ-11 ADSL cable
    • RJ-45 Ethernet cable
    • RS-232 serial cable
    • USB cable
    • Power adapter
    • Installation CD
    • Getting Started Guide
    • Installation Guide

    Specifications are subject to change without notice.

    Technology: ADSL (G.992.1)
    Linux support: No
    Price per Modem/NIC:  US$199.00

    external WWW: GreatSpeed, a RIAS Company : http://www.greatspeed.com/products/r250sduo.htm http://www.greatspeed.com/products/r250sduo.htm

    external PDF: GreatSpeed, a RIAS Company : http://www.greatspeed.com/pdf/gs-r250sduo.pdf http://www.greatspeed.com/pdf/gs-r250sduo.pdf

    If you are the producer of this modem / NIC and want to correct/update the presented information, please feel free to register for direct database access.
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