Race Communications presents the Avidia ADSL multiplexer from ADC (PairGain).

Race Communications company specializes
in system integration in the field of corporate
    and telecommunication networks. Significant
    some of the company's customers are providers
    access to the Internet. World Wide Web technologies are increasingly
    they are used in large enterprises, therefore
    bandwidth requirements are growing
    the “last mile" of the Internet.

    Meeting the wishes of its customers, Race
    Communications, the largest Russian distributor
    firms ADC (PairGain) (Digital Subscriber Line, digital subscriber line). Total
    There are more than 1 million xDSL devices installed in the world
    this company. Based on many years
of accumulated experience, PairGain has developed Avidia —
    broadband access hub
    integrated data and
voice services, which allows you to install up to 1296
    ports in one chassis.


    The Avidia architecture is based on
fully distributed ATM technology (asynchronous
transfer mode) and provides packet and
channel switching. The new hub is fault tolerant,
    allows for the build-up and supports QoS
(quality of service) tools, which is necessary when
organizing provider networks. Avidia supports
    a wide range of protocols and services, including G.lite,
    DMT ADSL, SDSL, T1, E1 and Frame Relay.


    The Avidia system can be configured as
    DSLAM device (DSL Access multiplexer), server
    access or hub connection of remote
local networks. The most useful new
    the hub will be for high-speed
    Internet access, telecommuting (work
    employees at home) and in corporate campus


    ADC (PairGain) offers the Avidia system in various
    versions: chassis for 21 boards
    extensions, telephone sealer for 240 lines,
    a hub for five expansion boards, etc. Boards
    the extensions have different port densities (from
one to 24) and support a variety of
    interfaces: OC-3c/STM-1, DMT RADSL/G.lite, Rate Adaptive SDSL, etc
. The release of inversion boards is planned
    Multiplexer E1/ATM, T1/E1 Circuit Emulation Card and 10/100 BaseT, as
well as a chassis with increased port density and
a hub for three expansion cards.


    The new Megabit Modem devices use
    specialized Falcon chips,
    developed by ADC (PairGain), which allows
    achieve maximum transmission speeds,
    provided by the G.lite, DMT ADSL standards, as well as
    provide ATM transmission over ADSL and voice transmission
    without installing linear separation filters.


    With the help of Megabit Modem products, digital service providers
    networks can quickly organize the provision of
    remote access services to the widest range
    customers, including those who do not fit the usual
    ADSL technology: users who require
    voice transmission with high quality, but want
    install modems yourself. Specially
    for such clients , PairGain has contributed to the software
    providing modems with PriorityVoice, InstaConnect functions,
    EasySession and AccessGain.


    The PriorityVoice function provides simultaneous
voice and data transmission with maximum
    speeds available in ADSL, without installation
    separators and microfilters. Thanks to this
    there is no need for inspection of the client's
    connections by representatives of the provider to
check the correctness of equipment switching.


    InstaConnect technology guarantees the establishment of
    ADSL connections for about one second,
    whereas usually this operation takes 10 seconds or
more. InstaConnect also tracks the status
    voice connection and optimizes
    ADSL connection for data transmission if
the phone conversation is over.


    The subscriber can set the connection parameters to
the provider from the browser using the functions
    EasySession. The settings include the choice of
    Internet provider, type and speed of connection, etc.


    AccessGain tools provide full control over
    access and data exchange between remote
    networks. AccessGain supports connections
    point—to-point, bridging connections according to RFC
    1483, Address translation (Network Address Translation), DHCP services
    and DNS. Routing and functionality support
    The bridge allows using Megabit Modem devices
    organize a permanent connection between
local networks. Such functionality
    especially important for corporate clients,
    who need a connection between the central
    office and branches.


    ADC (PairGain) offers several Megabit Modem models.
    The 500L product is intended for individual
users and is used for data transmission by
    one copper telephone pair using the G-lite DMT protocol
    ADSL. The modem supports the PriorityVoice and
    provides a transfer rate of up to 1.5 Mbit/s from
the provider to the client (downstream) and up to 512 kbit/s in
the opposite direction (upstream). The 500L model is also
    capable of broadcasting ATM cells by
    ADSL connection for transparent connection to
the central ATM backbone. In one device 500L
    three virtual channels can be configured,
    thanks to which users can initiate
    a session with various providers.


    The 600F model is designed to work in small
local networks and will be convenient for telecommuters and
users in branch offices. It
supports DMT ADSL protocol and transfer rates
    up to 7.5/1 Mbit/s downstream/upstream. 600F is installed without
    separation filter and provides
    broadcast of ATM cells via ADSL, simultaneous
holding of three point-to-point (PPP) sessions, as
well as the organization of 12 virtual channels.


    The 700F device is designed for business applications
    with developed LAN. In addition to DMT ADSL, it supports
    PPP protocol, bridge functionality according to RFC
    1483, routing and address management. 700F modem
    equipped with a 10/100 BaseT Ethernet port and capable of servicing
    more than 1000 users, 32 simultaneous PPP sessions
    and 32 virtual channels.


    The 710F modem is installed at the provider (or in
    central office) for the organization of one
    ADSL lines. Model 710F supports DMT ADSL, 10/100 Mbps
    Ethertnet and is able to exchange data with modems
    100L, 100F, 500L, 600F, 700F and 710F.


    The 300S product provides Ethernet frame transfer over
    one copper telephone line using Rate technology
    Adaptive SDSL (with automatic speed adjustment
    transfers). Megabit Modem 300S is equipped with a 10BaseT port and serves
    for symmetric data transmission at speeds up to
    1.5 Mbit/s. This device performs the role of
    Ethernet bridge between remote and central
    network segments. Such functionality is often
    required in office building complexes and
corporate campuses. In such environments, complex
network management and interaction functions
    executes the Avidia hub.


    Megabit Modem 100L and 100F are inexpensive
    network interface cards for connection
    individual subscribers to an Internet provider or
    to the central office. The 100F model provides
    DMT ADSL data transmission at 7.5/1 Mbit/s
    downstream/upstream, and 100L — 1.5 Mbit/s downstream and 512 kbit/s upstream.


    PairGain's new Megabit Modem products are built on
    based on industry standards and compatible with
    DSLAM devices and modems from other
manufacturers that support open


    The Avidia hub and Megabit Modem products of the new
generation form a complete solution for
Internet providers, alternative telephone
    operators and companies with their own
corporate networks. Race Communications Company
    It will start delivering these products to the Russian
market in the first quarter of 1999.


    Race Communications has a rich experience of creating on the basis of
    instruments of PairGain and other manufacturers of complex
    networks that allow the transmission of multiprotocol
    heterogeneous traffic (data, voice, video) and
efficient use of available resources.
    Teachers of the Race Communications Training Center,
    working for more than two years, telecommunications specialists will be trained
in the principles of installation,
    setup and operation of PairGain products and others
    network devices.


Race Communications specializes in
    system integration in the field of corporate and
telecommunication systems. Company
    offers solutions based on products and
technologies of the world's leading manufacturers
    network and computer equipment and software
    Software: Motorola ING, PairGain, Cisco, Compaq, Hewlett-Packard, RAD Data,
    MultiTech, Eicon, APC, Novell, Citrix, Patton Electronics, etc. More
    For more information about Race Communications, please
    to find out by phone (495) 785-0770, on the Web server www.race.ru or by email corp@race.ru .

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