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Installation and Troubleshooting

12

Troubleshooting Techniques

Follow these troubleshooting techniques to test for a valid connection as well 
as to confirm the correct operation of the network.

Connectivity Testing

1. Connect each port to a node or workstation. Then connect the power cord.

2. Make sure that the LINK LEDs for Port 1 and Port 2 are lit.

  

Note

When testing Port 2, connect the port to a computer and set the MDI/
MDI-X switch to the MDI-X position.

If the LINK LED does not light (TX):

❑

Change the MDI/MDI-X switch setting on Port 2 and make sure that 
the speed selection matches the device attached to the other end.

❑

If the SPEED and/or DUPLEX mode are changed during or after 
power on, press the RESET button to load the new configuration.

❑

If the FD and 100 Mbps LEDs do not match with the current 
configuration switch selection, press the RESET button again. (The 
FX port is 100 Mbps only.)

If the LINK LED does not light (FX):

❑

Make sure the remote end of the fiber optic cable is connected to a 
100Base-FX device

❑

Swap the near end fiber cable receive/transmit connectors

Is the unit receiving power?

Make sure that the POWER LED is lit.

If the POWER LED is not on, check both ends of the AC power cord. Make sure 
the power cord is plugged into a functioning wall outlet and that it is properly 
inserted into the AT-MS201/202 Micro Switch power connector.

Содержание AT-MS201

Страница 1: ...AT MS201 AT MS202 Fast Ethernet Micro Switch Installation Guide PN 613 10667 00 Rev A ...

Страница 2: ... is subject to change without notice In no event shall Allied Telesyn be liable for any incidental special indirect or consequential damages whatsoever including but not limited to lost profits arising out of or related to this manual or the information contained herein even if Allied Telesyn has been advised of known or should have known the possibility of such damages Trademarks Ethernet is a re...

Страница 3: ...vice pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of th...

Страница 4: ...designed for operation in the HORIZONTAL position VERTICAL MOUNTING must NOT BE DONE without the use of an Allied Telesyn vertical mount chassis designed for this purpose CAUTION Air vents must not be blocked and must have free access to the room ambient air for cooling OPERATING TEMPERATURE This product is designed for a maximum ambient temperature of 50 degrees C ALL COUNTRIES Install product in...

Страница 5: ...osition entworfen worden Das Gerät darf NICHT OHNE Gebrauch eines dafür entworfenen Allied Telesyn Vertikalmontagegestells in VERTIKALER POSITION montiert werden VORSICHT Die Entlüftungsöffnungen dürfen nicht versperrt sein und müssen zum Kühlen freien Zugang zur Raumluft haben BETRIEBSTEMPERATUR Dieses Produkt wurde für den Betrieb in einer Umgebungstemperatur von nicht mehr als 50 C entworfen AL...

Страница 6: ...AL position vandret VERTIKAL OPSTILLING lodret må IKKE FORETAGES uden brug af et Allied Telesyn vertikalt monteringsstel konstrueret til dette formål ADVARSEL Ventilationsåbninger må ikke blokeres og skal have fri adgang til den omgivende luft i rummet for afkøling BETJENINGSTEMPERATUR Dette apparat er konstrueret til en omgivende temperatur på maksimum 50 grader C ALLE LANDE Installation af produ...

Страница 7: ... Deze modellen zijn ontworpen om te werken in HORIZONTALE stand VERTICALE MONTAGE mag NIET UITGEVOERD WORDEN tenzij een daartoe speciaal ontworpen Allied Telesyn chassis voor verticale montage wordt gebruikt OPGELET De ventilatiegaten mogen niet worden gesperd en moeten de omgevingslucht ongehinderd toelaten voor afkoeling BEDRIJFSTEMPERATUUR De omgevingstemperatuur voor dit produkt mag niet meer ...

Страница 8: ...ilisation INSTRUCTIONS DE MONTAGE ATTENTION Ces modèles sont destinés à fonctionner en position HORIZONTALE Le matériel NE DOIT PAS être utilisé en MONTAGE VERTICAL à moins d utiliser un châssis de montage vertical Allied Telesyn conçu à cet effet ATTENTION Ne pas bloquer les fentes d aération ceci empêcherait l air ambiant de circuler librement pour le refroidissement TEMPÉRATURE DE FONCTIONNEMEN...

Страница 9: ...si VAAKA asennossa PYSTYASENNUSTA EI SAA TEHDÄ ilman Allied Telesyn pystykiinnitysalustaa joka on suunniteltu tähän tarkoitukseen HUOMAUTUS Ilmavaihtoreikiä ei pidä tukkia ja niillä täytyy olla vapaa yhteys ympäröivään huoneilmaan jotta ilmanvaihto tapahtuisi KÄYTTÖLÄMPÖTILA Tämä tuote on suunniteltu ympäröivän ilman maksimilämpötilalle 50 C KAIKKI MAAT Asenna tuote paikallisten ja kansallisten sä...

Страница 10: ... dal paese di destinazione all altra ISTRUZIONI PER IL MONTAGGIO ATTENZIONE questi modelli sono concepiti per il funzionamento in posizione ORIZZONTALE NON È POSSIBILE EFFETTUARE IL MONTAGGIO VERTICALE senza utilizzare l apposito telaio per il montaggio verticale Allied Telesyn ATTENZIONE le prese d aria non vanno ostruite e devono consentire il libero ricircolo dell aria ambiente per il raffredda...

Страница 11: ...se modellene er beregnet til bruk i HORISONTAL stilling l VERTIKAL MONTERING må IKKE UTFØRES uten bruk av et Allied Telesyn vertikal monteringschassis som er spesiallaget til dette formål FORSIKTIG Lufteventilene må ikke blokkeres og må ha fri tilgang til luft med romtemperatur for avkjøling DRIFTSTEMPERATUR Dette produktet er konstruert for bruk i maksimum romtemperatur på 50 grader celsius ALLE ...

Страница 12: ...plugue aprovado para uso no país em questão INSTRUÇÕES DE INSTALAÇÃO CUIDADO Estes modelos foram projetados para funcionar na posição HORIZONTAL NÃO DEVE SER EFETUADA INSTALAÇÃO VERTICAL sem o uso de um chassis de montagem vertical Allied Telesyn projetado para este fim específico CUIDADO As aberturas de ventilação não devem ser bloqueadas e devem ter acesso livre ao ar ambiente para arrefecimento...

Страница 13: ...a ocasionar tensiones peligrosas en las partes metálicas que están expuestas ELECTRICO ADVERTENCIA SOBRE EL CABLE Use un cable eléctrico con un máximo de 4 5 metros de largo con una capacidad mínima de 6 amperios 250 V hecho de cable HAR con el conector moldeado IEC 320 en un extremo y con un enchufe que está aprobado por el país de uso final en el otro INSTRUCCIONES DE MONTAJE ATENCION Estos mode...

Страница 14: ...mfånget som indikeras på produktens märkning ELEKTRISKT TYP KLASS 1 UTRUSTNING DENNA UTRUSTNING MÅSTE VARA JORDAD Nätkabeln måste vara ansluten till ett ordentligt jordat uttag Ett felaktigt uttag kan göra att närliggande metalldelar utsätts för högspänning Apparaten skall anslutas till jordat uttag när den ansluts till ett nätverk ELEKTRISKT ANMÄRKNING BETRÄFFANDE KABELN Använd en kabel med maxim...

Страница 15: ...over Switch 5 LEDs 6 Configuration Switch 6 Full Duplex Configuration 7 Reset Button 7 AC Power Connector 7 Model Types and Power Cords 7 Functional Description 8 Frame Processing 8 Address Recognition and Filtering 8 Chapter 2 Installation and Troubleshooting 9 Before You Begin 9 Verifying Package Contents 9 Installation 10 Troubleshooting Techniques 12 Connectivity Testing 12 Is the unit receivi...

Страница 16: ...5 Physical Specifications 15 Electrical and Mechanical Specifications 15 Pinout Assignments 16 Cable Specifications and Requirements 17 Appendix B Technical Support Fax Order 19 Appendix C AT MS201 202 Micro Switch Installation Guide Feedback 21 Appendix D Where To Find Us 23 ...

Страница 17: ...r optics Operating at half or full duplex mode Segmenting collision domains Is transparent to higher protocols This micro switch is based on the store and forward switching architecture providing error free packet transfer The AT MS201 202 Micro Switch complements the existing Allied Telesyn Fast Ethernet family of products and is fully compliant with IEEE 802 3 and IEEE 802 3u standards All of th...

Страница 18: ... Half Full mode for each port FX is 100mbps only Port and switch status LEDs Reset button Internal AC universal power supply with detachable cord UTP cabling Category 5 100Mbps Category 3 5 10Mbps 1 2 3 6 1 2 3 6 1 2 3 6 1 2 3 6 MDI MDI X 100Base FX 10Base T 100Base TX TX TX RX RX COL LINK 100 FD TX RX COL LINK 100 FD FORWARD POWER RESET PORT 1 PORT 2 CONFIGURATION SWITCH POWER IEEE 802 3 802 3u M...

Страница 19: ...r Allied Telesyn 10 100 Mbps products Figure 2 shows a typical configuration using the AT MS202 SC Micro Switch to connect two Ethernet segments or collision domains The switch performs layer two address filtering functions and only forwards appropriate packets Figure 2 AT MS202 SC Micro Switch Typical Configuration Server PORT 1 PORT 2 CONFIGURATION SWITCH POWER Server MS202 Switch Hub Stack MMF ...

Страница 20: ...ed pair port provides full duplex at 10 Mbps fiber port provides 100 Mbps Up to 8 192 unicast MAC addresses and unlimited multicast broadcast addresses 280 K bytes per port packet buffer Physical Description The front panel of the MS201 202 Micro Switch is equipped with the following components ST SC dual fiber connectors UTP RJ45 connector MDI MDI X switch Port and switch LEDs Configuration switc...

Страница 21: ...UTP RJ45 10Base T 100Base TX connector with an MDI MDI X switch This port can operate in full or half duplex mode MDI MDI X Crossover Switch The MDI MDI X slide switch used with the RJ45 port allows you to connect the switch to another bridge switch cascade or hub for network expansion using straight through cable therefore eliminating the need for a cross over cable If you are using the switch s ...

Страница 22: ...X Green ON indicates that the switch is receiving signals COL Yellow ON indicates data collisions half duplex mode LINK Green ON indicates that the link connection is established FD Yellow ON for FULL Duplex mode indicates simultaneous two way independent transmission OFF for HALF duplex mode indicates transmission in only one direction at a time Both devices contend for the right to send data whe...

Страница 23: ...ad the new parameters The RESET also clears all receive buffers MAC address tables and restarts the self address learning mechanism The power off on cycle also is the equivalent of the RESET button AC Power Connector AT MS201 202 Micro Switch has an internal universal power supply rated at 100 240 VAC 50 60 Hz A 100 120 VAC power cord Americas only supplies the power for all the internal electroni...

Страница 24: ...o an end station on Port 2 it will be forwarded if the Frame Check Sequence FCS is valid If the packet from Port 1 is destined to an end station also attached to Port 1 then the packet is discarded The switch will discard CRC error misaligned runt and oversized packets When the packet has dribble bits at the end the switch will truncate to octet boundary and check for a good FCS before forwarding ...

Страница 25: ...d only be performed by TRAINED SERVICE PERSONNEL Verifying Package Contents Make sure the package includes all of the required parts including AT MS201 202 Fast Ethernet Micro Switch Power cord Americas version only This installation guide Note If any of the above items are missing or damaged notify your Allied Telesyn sales representative Chapter 2 Installation and Troubleshooting ...

Страница 26: ...ote For cable specifications and requirements see the section titled Cable Specifications and Requirements in Appendix A Installation To install the switch do the following 1 Remove all equipment from the packaging box and store the box and packaging materials in a safe place 2 Attach the power cord 3 Make sure that the green POWER LED is lit 4 Plug the 10 100Base TX RJ45 end station cables into t...

Страница 27: ...hown in the following Up Half Duplex Down Full Duplex 3 Verify that the DIP switches are set to the desired configuration 4 Press the RESET button to load your new configuration Note Every time you change a DIP switch make sure you press the RESET button to load the new configuration 5 Plug the opposite end of each 10 100Base T or 100Base TF cable into a network node or workstation 6 Verify that t...

Страница 28: ...on matches the device attached to the other end If the SPEED and or DUPLEX mode are changed during or after power on press the RESET button to load the new configuration If the FD and 100 Mbps LEDs do not match with the current configuration switch selection press the RESET button again The FX port is 100 Mbps only If the LINK LED does not light FX Make sure the remote end of the fiber optic cable...

Страница 29: ... or is not operating properly Solution 2 Check the connected equipment computer another switch etc and turn on the power Make sure that the SPEED and DUPLEX MODE for each port of the switch match the settings of the attached computer or additional switch 3 Problem 3 The MDI MDI X slide switch for TX is on the wrong setting Solution 3 Make sure you use only a straight through cable reposition the M...

Страница 30: ......

Страница 31: ...chanical Specifications Standard CE Compliant IEEE 802 3 IEEE 802 3u Immunity Conforms to EN500082 1 immunity standard Safety Conforms to all standards normally supported by ATI products including safety standards UL 1950 CSA 22 2 No 950 TUV and EN60950 EMI FRI Meets all applicable requirements for emissions including but not limited to FCC Class A IC Class A EN55022 Class B Electrical Rating Inpu...

Страница 32: ...e TX RJ45 connector with its pin assignments Figure 3 RJ45 Pin Assignments Table 3 lists the 10Base T 100Base TX connector pins and their positions for the MDI X and MDI switch Table 3 Pinout Assignments MDI X Default Position MDI Position 1 RX 1 TX 2 RX 2 TX 3 TX 3 RX 4 4 5 5 6 TX 6 RX 7 7 8 8 Pin 1 Pin 8 ...

Страница 33: ...e TX and 100Base FX network configurations using twisted pair cable and fiber optics Table 4 IEEE 802 3 and 802 3u Cabling Specifications 10Base T 100Base TX 100Base FX Media Unshielded Shielded Twisted Pair Category 3 4 or 5 Unshielded Shielded Twisted Pair Category 5 only ST SC Fiber Optic Cable 50 100 or 62 5 125 micron multimode fiber MaximumSegment Length 100 meters 328 feet 100 meters 328 fe...

Страница 34: ......

Страница 35: ...s List the steps that led up to the problem ___________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ Detailed description Use separate sheet if n...

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Страница 37: ...__ ______________________________________________________________________ I would like the following more developed _____________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ _________________________________...

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Страница 39: ...61 Italy Italy Spain Portugal Greece Turkey Israel 39 2 416047 39 2 419282 Japan 81 3 3443 5640 81 3 3443 2443 United Kingdom United Kingdom Denmark Norway Sweden Finland Iceland 44 1 235 442560 44 1 235 442490 Technical Bulletin Board Service 1 206 483 7979 CompuServe Go ALLIED World Wide Web http www alliedtelesyn com FTP Server Address gateway centre com lowercase letters Login anonymous lowerc...

Страница 40: ...s Scottsdale AZ Tel 602 423 7087 Fax 602 423 7088 Los Angeles CA Tel 310 412 8684 Fax 310 412 8685 Mission Viejo CA Tel 714 699 0628 Fax 714 699 0276 For Sales Information San Diego CA Tel 619 279 3899 Fax 619 279 3897 Santa Ana CA Tel 714 838 0434 Fax 714 838 9721 Clearwater FL Tel 813 726 0022 Fax 813 726 0234 Norcross GA Tel 770 448 7214 Fax 770 448 2600 Reading MA Tel Fax 617 944 3492 Eden Pra...

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