User Manual
Contents
1. Okbps Okbps 0 0 0 100BaseT FD MDIX Od 00h07m48s HW B FW 1 0 3 R Refresh screen Use the arrow keys to navigate through the menu Settings can also be adjusted with the plus and minus keys Press D for the default setting Press Enter or Return to accept a change Tahoe 289 E3 T3 Ethernet Bridge Control and settings Device settings are available from the LCD menu and through the serial console G 703 settings Serial E3 T3 DS3 interface settings CIR Committed Information Rate Limits the transmit data rate to a specified value from 512kbps up to full link throughput in 512kbps steps Transmit clock Choses the source of the transmitter clock A local oscillator or a remote clock recovered from the serial line receiver may be selected Available settings Local Osc use local reference oscillator Received clock use recovered clock Invert clock Determines on which clock edge data is updated and sampled respectively Normal update and sample on rising clock edge Inverted update and sample on falling clock edge u Inverted Tx update on falling and sample on rising clock edge Cable length Indicates cable length for waveform shaping in T3 DS3 mode Ignored for E3 converters below 70m cable no longer than 70m 225ft above 70m cable longer than 70m 225ft Tahoe 289 E3 T3 Ethernet Bridge M Loopback Enables serial loop back for testing purposes The following modes are available2. Tahoe 289 E3 T3 Ethernet Bridge User Manual Tahoe 289 E3 T3 Ethernet Bridge User Manual Tahoe 289 E3 T3 Ethernet Bridge EJ 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 owners 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 EXPRESSED ORIMPLIED 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 El Tahoe 289 E3 T3 Ethernet Bridge Safety Instructions gt A A A Read the following safety notices before installing o
3. is selected automatically although a specific setting can be forced An Automatic flow control is supported while in full duplex mode LED indicators Besides the LCD display the following status LEDs are placed on the front panel Rx G 703 receiver activity WAN Tx G 703 transmitter activity Link lit when the device is connected to a LAN LAN 100M LAN connection throughput lit when 100 Mbps connection speed is negotiated Act LAN activity blinks when data is sent or received Tahoe 289 E3 T3 Ethernet Bridge Management The Tahoe 289 bridge is equipped with an LCD display keypad and a serial console RS232 con nector Both give equivalent access to device settings and statistics All setting adjustments take immediate effect Settings have to be saved before restart with the Save setting option otherwise previously stored values will be loaded during startup Factory default settings may be loaded with the Factory defaults option in the Advanced options submenu LCD Menu The LCD display with keypad is used to adjust device settings and display statistics The main LCD screen is shown below The CIR indicator is shown when the Committed Information Rate is set An asterisk is shown when there are unsaved settings In the second line the current total data rate is displayed When the main screen is shown use the Up and Down keys to view other statistics and press the
4. Local local loop back Remote line remote loop back not using framer Remote frame remote loop back using framer This setting is not saved Ethernet settings Ethernet interface settings Ethernet mode Selects the speed and duplex mode of the Ethernet interface Available modes are Auto use auto negotiation recommended setting 10BaseT HD force 10Mbps half duplex 10BaseI FD force 10Mbps full duplex 100BaseT HD force 100Mbps half duplex 100BaseT FD force 100Mbps full duplex The auto mode is the recommended setting but forced modes are also available When selecting a forced Ethernet mode make sure the link partner has the same mode selected as duplex cannot be detected in such circumstances Flow control Select a flow control to be used on the Ethernet interface as follows Auto flow control depends on advertised link partner abilities recom mended setting Enabled force flow control Disabled don t use flow control The recommended setting is Auto When flow control is enabled and Ethernet is in full duplex mode the device will send and accept pause frames to prevent network congestion Receive queue Changes the size of the Ethernet receive queue in 64kB 32 frames steps May be used to adjust latency in a heavily loaded network Tahoe 289 E3 T3 Ethernet Bridge Transmit queue Changes the size of the Ethernet transmit queue with 64kB 32 frames step May be used t
5. to access and manage the device Chapter 3 Control and Settings Chapter 4 Statistics The device settings available for the user Statistics displayed by the device Appendix A Troubleshooting Description of typical problems that may occur during use of the device Appendix B Technical Specification Appendix C Declaration of Con formity Technical parameters of the device Information about compliance with European standards Tahoe 289 E3 T3 Ethernet Bridge Document Conventions This manual uses following conventions boldface font Commands and keywords lt gt 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 Information to be entered during a management session typewriter font Information displayed on the LCD 4 Note Notes contain helpful suggestions that may be worth remembering A Caution AX Warning This symbol means a situation that requires you to be careful Otherwise equipment damage or loss of data may occur This 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 Tahoe 289 E3 T3 Ethernet Bridg
6. Enter key to enter device settings Options may be shown or adjusted with the keypad as follows Up previous option setting Down next option setting Enter enter a submenu change a setting accept a change perform an action Esc leave a submenu cancel a change Serial Console The serial console gives access to all device settings and statistics via the interactive terminal screen Any VT100 compatible terminal may be used to access the device To connect use a DB9 null mo dem cable at 9600bps 8 data bits no parity 1 stop bit without flow control The main terminal screen is shown below It is divided into three distinct sections The interactive menu is displayed on the left side of screen the statistics are displayed on the right side The bottom half of the screen is reserved for log messages The status line below the log shows a quick key map to assist the operator Tahoe 289 E3 T3 Ethernet Bridge m Tahoe 289 gt G 703 settings Reb Log 0d 0d 0d 0d 0d arrows oot 00 00 00 00 00 00 00 00 00 00 00 01 00 00 03 Navigate Ethernet settings Advanced options Reset counters Restore settings Save settings SGALFNSEUES Total data rate Tx data rate Rx data rate Tx frames Rx frames Frame errors Ethernet state Uptime Version Tahoe 289 Rev B Ver 1 0 3 built Jan 14 2008 15 02 38 Factory defaults loaded G703 link up Change Ethernet link up Enter Accept D Default Okbps
7. e Introduction Tahoe 289 bridges allow connecting two LANs over an E3 T3 DS3 line They are a cost effective 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 A TAHOE TAHOE 289 E3 Ethernet bridge v ier O OOOO WAN WAN LAN LAN LAN Link Act Link 100M Act front panel Ethernet Console Rx E3 Tx J PEB O e le TAHOE 289 E3 Ethernet bridge back panel 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 The G 703 WAN interface consists of two coaxial BNC connectors One ofthem is a transmit out put Tx while the other one is a receive input Rx The Tx and Rx connectors should be connected to the corresponding line terminating the equipment s Rx and Tx ports The WAN interface type E3 or T3 depends on the device variant and should be specified during ordering The data transmission rates are 34 368 Mbps and 44 736 Mbps respectively Tahoe 289 E3 T3 Ethernet Bridge m Ethernet interface The 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 The mode of operation
8. hernet Bridge EE Contents IntrOductiOn scsccsscsscsssessesscssesesssssssssscesesssssssssssessessssessessessessssesssessesessesssseeseasessessessesseseesease 1 G703 interface www w RAR E esses WO A E E 1 Ethernet interface aa AO ROA RO AR EA AAA OWE ORA RA AS 2 LED idi ada NANA AR tas Ms ak aa ad aa JAR AA da 2 Management sccsssecsssessesssessseensesseesseeeseecssseseeeseeeessecseesseceseesessenssesseeeseecsesenseeseeeseeecsseeasenseeenes 3 LEDMENU zzo O a dO NN dad 3 Serial CORSOlE san adiO KAR RARE AA dO O Ah wa dA dusts w niki 3 Control and settings cscssscscssessseeessssessssssessessssseesessessessseessessssessseseeseesessessessseeseeseeee 5 6 703 sEtUNgS aa is ain a Odo aka add Aa iOna a Nias 5 Ethernet settings wa wawa Ja ady aa ZE A Oda sa at BU wta 6 Advanced Options w oi OSW OKO WOP i OWO acini A AE 7 RESEUCOUNIEFS aa O Ra AA kn O A A RA 7 Restore SELIM GS id aS ipo a ii zo ia 7 DAVE L E E E DPS E was E today dia 8 ReDo oraa A E 8 Statistics A a a 9 Appendix A Troubleshooting ssa oka 11 Appendix B Technical Specification ccccscssssscsssssesssesscsssssessssssssssssssssssssessessssssseseeseesesseses 12 Appendix C Declaration of Conformity 4 seseesess aan aaa aaa AAAA AO 13 El Tahoe 289 E3 T3 Ethernet Bridge Preface About this Manual This manual contains following chapters Chapter 1 Introduction An overview of Tahoe 289 Chapter 2 Management The ways
9. lowing European Directives 73 23 EEC low voltage safety requirements 89 336 EEC EMC requirements u 99 5 EEC radio amp telecommunication terminal equipment requirements The compliance of Tahoe 289 with the requirements of the above mentioned directives is ensured by complete application of the following harmonized European Standards EN 60950 2000 EN 55022 1998 EN 61000 6 1 2002 EN 61000 6 3 2002 The products also comply with the directive 2002 95 EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment RoHS Directive with the exemp tions applicable for network infrastructure equipment for switching signalling transmission and network management according to clause 7 of the Annex to the directive Signed Piotr Kaczmarzyk Position Director Signature ow asa 4 Date 20 January 2008 Place Wroc aw Poland Tahoe 289 E3 T3 Ethernet Bridge H TAHOE Hercena 3 5 50453 Wroc aw Poland phone 48 71 344 26 37 fax 48 71 344 26 42 www tahoe group com
10. o adjust latency in a heavily loaded network Reset connection Resets the Ethernet interface and reinitializes auto negotiation if enabled Advanced options Advanced user options POST Power On Self Test Enabled self test will be performed on every boot Disabled self test will not be performed Disabling POST may shorten startup time The recommended setting is Enabled Factory defaults Loads the factory default settings Upgrade Enters the firmware upgrade mode Check Tahoe web site for updates Reset counters Resets frame and error counters Restore settings Restores previously saved settings Tahoe 289 E3 T3 Ethernet Bridge m Save settings Stores settings to nonvolatile memory Reboot Reboots the device Tahoe 289 E3 T3 Ethernet Bridge Statistics The following bridge statistics are available from the LCD menu and through the serial console Name Description Total data rate Total data rate used in kbps Tx data rate Transmit data rate used in kbps Rx data rate Receive data rate used in kbps Tx frames Count of transmitted frames Rx frames Count of received frames Frame errors Count of frames received with errors Ethernet state State of Ethernet link speed duplex and cable crossover is displayed Uptime Time from device startup in days hours minutes and seconds Version The hardware revision and firmware version Tahoe 289 E3 T3 E
11. r operating the device This 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 This 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 effect on overcurrent protection and supply wiring There 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 qualified service personnel if any of the following events are noted 1 The 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 Tahoe 289 E3 T3 Et
12. thernet Bridge H Tahoe 289 E3 T3 Ethernet Bridge Appendix A Troubleshooting Serial interface is connected Make sure Rx and Tx connectors are not swapped Make sure a but there is no link link partner is connected and properly configured WAN link is detected at only Make sure both Tx and Rx connectors are properly connected one end at both ends There isa WAN link but no Check G 703 settings at both ends data flows LCD shows Tx fail Transmit line is shorted at local end remove the short circuit Tahoe 289 E3 T3 Ethernet Bridge m Appendix B Technical Specification E3 34 368 Mbps throughput T3 DS3 44 736 Mbps memory 16MB SDRAM 100MHz G 703 Rx Tx 2x BNC unbalanced 75 Ohm connectors Ethernet RJ45 Console DB 9 M network protocols HDLC Ethernet interface 10 100Base T RJ45 connector serial console RS 232 DB 9 M connector 9600bps 8N1 power consumption 6W power input 15V DC 400mA power supply 100 240V AC 50 60Hz 1A dimensions 200 mm width x 45 mm height x 130 mm depth environmental storage temperature 20 C to 65 C humidity 5 to 95 conditions operation temperature 0 C to 50 C humidity 0 to 85 Tahoe 289 E3 T3 Ethernet Bridge Appendix C Declaration of Conformity CE TAHOE Piotr Kaczmarzyk ul Hercena 3 5 50 453 Wroc aw We declare that the product Tahoe 289 complies with the regulations of the fol
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