Tahoe 289 User manual

User Manual
Tahoe 289
E3/T3/Ethernet Bridge

User Manual
Tahoe 289
E3/T3/Ethernet Bridge

II
Tahoe 289 E3/T3/Ethernet Bridge
Tahoe 289 E3/T3/Ethernet Bridge User Manual
Firmware version 1.0.3
Published January 2008
©2005-2008 Tahoe. All rights reserved.
Trademarks of other companies are used only for explanation and to the owner’s benet, 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, EXPRESSED 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 DAMAGE, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO
DATA ARISING OUT OF THE USE OF, OR INABILITY TO USE THIS MANUAL.

III
Tahoe 289 E3/T3/Ethernet Bridge
Safety Instructions
Read the following safety notices before installing or operating the device:
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.
Read the installation instructions before you connect the device to its power source.
Reliable earthing of this equipment must be maintained.
is product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
a fuse no larger than 240 VAC, 16A is used.
Check nameplate ratings to ensure there is no overloading of supply circuits that could have an eect
on overcurrent protection and supply wiring.
ere is no physical circuit separation if the outlet is disabled. Always disconnect the power cord be-
fore removing the cover of any powered device.
Immediately disconnect the unit from the outlet and contact qualied service personnel if
any of the following events are noted:
1. e power cord has become frayed or damaged.
2. Liquid has been spilled on to the device or the device has been exposed to rain or water.
No serviceable parts inside! Do not attempt to repair or service this device yourself. Internal compo-
nents must be serviced by authorized personnel only.
Do not work on the system, or connect or disconnect cables during periods of lightning activity.

IV
Tahoe 289 E3/T3/Ethernet Bridge
Contents
Introduction.................................................................................................................................. 1
G.703 interface ...................................................................................................................................... 1
Ethernet interface ................................................................................................................................. 2
LED indicators ...................................................................................................................................... 2
Management ................................................................................................................................. 3
LCD Menu ............................................................................................................................................. 3
Serial Console........................................................................................................................................ 3
Control and settings ..................................................................................................................... 5
G.703 settings ........................................................................................................................................ 5
Ethernet settings................................................................................................................................... 6
Advanced options................................................................................................................................. 7
Reset counters ....................................................................................................................................... 7
Restore settings ..................................................................................................................................... 7
Save settings........................................................................................................................................... 8
Reboot..................................................................................................................................................... 8
Statistics ........................................................................................................................................ 9
Appendix A, Troubleshooting.....................................................................................................11
Appendix B, Technical Specication ......................................................................................... 12
Appendix C, Declaration of Conformity................................................................................... 13

V
Tahoe 289 E3/T3/Ethernet Bridge
Preface
About this Manual
is manual contains following chapters:
Chapter 1, Introduction An overview of Tahoe 289
Chapter 2, Management e ways to access and manage the device
Chapter 3, Control and Settings e device settings available for the user
Chapter 4, Statistics Statistics displayed by the device
Appendix A, Troubleshooting Description of typical problems that may occur during
use of the device
Appendix B, Technical Specication Technical parameters of the device
Appendix C, Declaration of Con-
formity
Information about compliance with European standards

VI
Tahoe 289 E3/T3/Ethernet Bridge
Document Conventions
is manual uses following conventions:
boldface font Commands and keywords
< > Required arguments
[ ] Optional arguments
{ a | b | c } Alternative arguments
[ a | b | c ] Alternative optional arguments
typewriter font Information displayed during a serial or remote connection
boldface
typewriter font
Information to be entered during a management session
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 in preventing accidents.

1
Tahoe 289 E3/T3/Ethernet Bridge
Introduction
Tahoe® 289 bridges allow connecting two LANs over an E3 / T3 (DS3) line. ey are a cost-eective
alternative to expensive E3 / T3 routers.
Bridges are transparent, that is both interconnected networks appear as a single LAN, as if both
were plugged into the same Ethernet switch.
Tahoe 289 has two network interfaces, the serial WAN G.703 interface and the FastEthernet inter-
face for Local Area Network (LAN) connection.
G.703 interface
e G.703 (WAN) interface consists of two coaxial BNC connectors. One of them is a transmit out-
put (Tx), while the other one is a receive input (Rx). e Tx and Rx connectors should be connected
to the corresponding line terminating the equipment’s Rx and Tx ports.
e WAN interface type – E3 or T3 depends on the device variant and should be specied during
ordering. e data transmission rates are 34.368 Mbps and 44.736 Mbps respectively.
front panel
back panel

2
Tahoe 289 E3/T3/Ethernet Bridge
Ethernet interface
e Ethernet interface used for local network (LAN) connection. 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 operation
is selected automatically, although a specic setting can be forced. An Automatic ow control is
supported while in full-duplex mode.
LED indicators
Besides the LCD display, the following status LEDs are placed on the front panel:
WAN Rx G.703 receiver activity
Tx G.703 transmitter activity
LAN
Link lit when the device is connected to a LAN
100M LAN connection throughput – lit when 100 Mbps connection speed
is negotiated
Act LAN activity, blinks when data is sent or received