Tahoe 4681 User manual

User Manual
Tahoe 4681
(4-port G.shdsl.bis/FastEthernet modem card)

User Manual
Ta h o e 4 6 81
(4-port G.shdsl.bis/FastEthernet modem card)

II
Tahoe 4681 (4-port G.shdsl.bis/FastEthernet modem card)
Tahoe 4681 (4-port G.shdsl.bis/FastEthernet modem card) User Manual
Firmware version 1.3.0
Published July 2006
©2005-2006 Tahoe. All rights reserved.
Trademarks of other companies are used only for explanation and to the owner’s benefit, without
intent to infringe.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE
SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDA-
TIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE, BUT ARE PRESENTED WITHOUT WAR-
RANTY OF ANY KIND, EXPRESS OR IMPLIED AND TAHOE MAKES NO COMMITMENT TO UPDATE
THE INFORMATION CONTAINTED HERE.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE
OF THESE SUPPLIERS ARE PROVIDED “AS IS”. TAHOE DISCLAIM ALL WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PAR-
TICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE,
OR TRADE PRACTICE.
IN NO EVENT SHALL TAHOE BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCI-
DENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO
DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL.

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Tahoe 4681 (4-port G.shdsl.bis/FastEthernet modem card)
Contents
Introduction ..............................................................................................................................................1
Front Panel ..............................................................................................................................................1
Leased Line..............................................................................................................................................1
LAN ..........................................................................................................................................................2
Status LEDs .............................................................................................................................................2
Installation.................................................................................................................................................3
Advanced Configuration and Management ......................................................................................5
Telnet Connection..................................................................................................................................5
Internal Backplane Connection...........................................................................................................5
Commands Summary ...........................................................................................................................6
DHCP Server Configuration ..............................................................................................................25
Appendix A, Troubleshooting.............................................................................................................31
Appendix B, Technical Specification.................................................................................................32
Appendix C, Safety Information ........................................................................................................33
Appendix D, Declaration of Conformity..........................................................................................35

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Tahoe 4681 (4-port G.shdsl.bis/FastEthernet modem card)

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Tahoe 4681 (4-port G.shdsl.bis/FastEthernet modem card)
Preface
About this Manual
is manual contains following chapters:
Chapter 1, Introduction An overview of the modem, description of its interfaces
and features
Chapter 2, Installation How to install the card in a DSL Access Multiplexer
Chapter 3, Advanced Configuration
and Management
List of commands used to configure the modem using
serial console or telnet connection
Appendix A, Troubleshooting Description of typical problems that may occur during
use of the modem
Appendix B, Technical Specification Parameters of the modem
Appendix C, Safety Information Important information about hazards involved with us-
age of electrical devices
Appendix D, Declaration of Con-
formity
Information about compliance to European standards

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Tahoe 4681 (4-port G.shdsl.bis/FastEthernet modem card)
Document Conventions
is manual uses following conventions:
boldface font Commands and keywords
< > Arguments for which you have to supply values
[ ] Optional arguments
{ a | b | c } Alternative arguments
[ a | b | c ] Alternative optional arguments
typewriter font Information displayed during a serial or telnet connection
boldface
typewriter font
Information that must be entered during a serial or telnet
connection
LCD font Information displayed on the LCD
Note Notes contain helpful suggestions that may be worth
remembering
Caution is symbol means a situation that requires you to be careful.
Otherwise equipment damage or loss of data may occur.
Warning is warning symbol means danger. You are in a situation that
could cause bodily injury. Before you work on any equipment,
be aware of the hazards involved with electrical circuitry and be
familiar with standard practices for preventing accidents.

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Tahoe 4681 (4-port G.shdsl.bis/FastEthernet modem card)
Introduction
ank you for purchasing the Tahoe 4681 modem card. We did our best to ensure highest stand-
ard of reliability and performance of our products. Devoting many years of research and devel-
opment we are proud to provide a superior quality device unfolding new possibilities for the use
of the copper lines.
Tahoe 4681 modem card contains four G.shdsl.bis modems which allow data transmission with
speeds up to 5696 kbps on a 2-wire line, 11392 kbps on a 4-wire line and 22784 kbps on an 8-wire
line. anks to powerful TCPAM-32 modulation throughputs are much higher than using HDSL
technology and reach is nearly twice that of VDSL.
Front Panel
Leased Line
Four 6-pin RJ-11 connectors are used to connect the leased lines. e polarization of a line is not
important.
Pin Signal
1-
2-
3 line
4 line
5-
6-

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Tahoe 4681 (4-port G.shdsl.bis/FastEthernet modem card)
LAN
e Fast Ethernet interface is used to connect the modem to the Local Area Network (LAN).
It may work at speeds of 10 Mbps (10Base-T) or 100 Mbps (100Base-Tx), in full-duplex or half-
duplex mode. e mode of transmission is selected automatically, although a specific setting can
be forced.
Modem should be connected to an Ethernet switch or a hub using a straight patch-cord or to a
PC, a router or an uplink port in a switch using a crossed-over. Aer connecting the cable a LED
named “LAN Link” should light up.
Status LEDs
Besides LEDs on the LAN connector there are four LEDs representing state of the G.shdsl link.
ree behaviours of these LEDs are possible:
off – line is not connected, no signal is detected
blinking – line is in progress of synchronization
on – line is synchronized, the data stream may flow through the modem
LAN Link LAN Activity