Appendix A: Troubleshooting
Contents
1. which use a standard network interface e g a workstation server bridge or router RJ 45 daisy chain ports MDI can be cascaded to a station port on similar networking devices e g another switch or hub Use unshielded twisted pair UTP or shielded twisted pair STP cable for RJ 45 connections 100Q Category 3 4 or 5 cable for 10 Mbps connections or 100Q Figure B 1 RJ 45 Connector on the Switch Side Category 5 cable for 100 Mbps connections Also be sure that the length of any twisted pair connection does not exceed 100 meters 328 feet 1 2 3 6 1 Applies to Ports 1 7 and 8 when Daisy Chain switch is set to MDI X Assignment Daisy Chain Ports 1 7 amp 8 Input Receive Data Not Used Assignment Station Ports 1 8 Input Receive Data Input Receive Data Output Transmit Data Output Transmit Data Not Used 2 Applies to Ports 1 7 and 8 when Daisy Chain switch is set to MDI Table B 1 RJ 45 Pin Assignments Schematics for both straight and crossover twisted pair cable are shown below Straight Through Crossover Switch Adapter Switch Switch 1 IRD 1 OTD 1 IRD 1 IRD 2 IRD 2 OTD 2 IRD 2 IRD 3 OTD 3 IRD 3 OTD 3 OTD 6 OTD 6 IRD 6 OTD 6 OTD Port and Cable Assignments B 1 SwitcHub 8se User s Guide AUI Port Pin 1 l The AUI Port provides a means of interfacing to 10 Mbps 0 Cae 0 coaxial cable i e thick Eth2. Applications 1 High Bandwidth File Server 4 High speed Link between Switches 5 Multiport Bridge with High Bandwidth Backbone 3 Switch Used as Collapsed Backbone for Starter Network 2 AUI and BNC Connections 2 7 AUI Port vi 4 17 Auto negotiation v 4 13 Protocol 2 14 4 13 BNC Port vi 4 17 Bridging Functions 1 Cabling Maximum Length for Fiber Optic 2 8 2 16 Supported Types 6 Communication Mode Auto negotiation 3 Selection 2 6 2 13 4 12 Connecting to a Trunk Line 7 Connections 100 Mbps Fiber Optic 8 Configure Button 3 Long Press 2 11 4 3 Short Press 2 11 4 3 Cord Set Specifications 3 Cross bar Switching 7 Crossover Cable 1 Index D Daisy chain Ports 5 Diagnostic Tests 0 Port 1 System 1 Display Mode 1 Distance Limit and Power Loss in Fiber Optics 8 E EMI Certification 1 Ethernet Ports 4 14 F Fast Ethernet 4 Ports 6 FCC Warning 1 Fiber Optic Link vi 4 17 Fiber Optics via AUI 10 Mbps Port 7 Filter Packets 2 Forward Packets 2 Full Duplex 4 H Hardware Description 1 Hardware Installation 2 1 2 2 Indicators Bandwidth Utilization 2 Collision 5 CPU 4 4 SwitcHub 8se User s Guide Demonstration 2 13 4 10 Diagnostics 2 13 4 10 Filter 4 9 Filtering Ratio 2 12 Forward 8 Forwarding Ratio 2 Full Duplex 2 Full Half 4 12 Full Half Duplex 2 13
3. CA 95112 USA Phone 408 452 8900 408 452 8080 Fax 408 452 8988 BBS 408 452 8828 FAST FAX 408 452 8811 Accton UK The Mill Horton Road Stanwell Moor Staines Middx TW19 6BJ United Kingdom Phone 44 1753 687677 44 1753 680109 Fax 44 1753 689010 Ordering Information SwitcHub 8se 52008 SwitcHub 8se ES2008 TF SC SwitcHub 8se ES2008 TF ST TransCoax ll EN2009 TransPair Il EN2032 TransOptic lll EN2031 Accton Australia Level 6 10 Help Street Chatswood N S W 2067 Australia Phone 61 2 9410 9860 Fax 61 2 9410 9861 BBS 61 2 9410 9862 Accton Japan Kano Bldg 7F 1 25 1 Nishi Gotanda Shinagawa ku 141 Tokyo Japan Phone 81 3 3495 1351 Fax 81 3 3495 1352 Smart Ethernet Switch with 6 LOBASE T and 2 10BASE T 100BASE TX Ports Smart Ethernet Switch with 6 IOBASE T 1 10BASE T 100BASE TX and 1 100BASE FX SC type Ports Smart Ethernet Switch with 6 IOBASE T 1 10BASE T 100BASE TX and 1 100BASE FX ST type Ports AUI to BNC transceiver AUI to 10BASE T transceiver AUI to ST Fiber Optic transceiver E 6 Product Support Services Glossary 10BASE2 IEEE s specifications for running 10 Mbps Ethernet using thin coaxial cable 500 RG 58 A cable segment can be up to 185 meters 606 feet long and have a maximum of 30 nodes 10BASE5 IEEE s specifications for running 10 Mbps Ethernet using thick yellow coaxial cable 500 A cable segm
4. Link 4 6 Port Status 2 12 Receive 4 6 Select 2 Statistical Display 7 518108 4 Transmit 4 6 Utilization 4 8 Installation Mounting Switches in a Rack 3 Stacking Switches without a Rack 2 L LED Indicators 8 Limited Warranty 4 Link Indicator 5 N Network Connections 4 Cascaded 2 4 2 5 Fast Ethernet 2 5 Fiber Optic 2 8 MDI Daisy chain Port 5 MDI X Station Port 4 Restrictions on Cascade Length 6 Verifying 5 Network Diameter Extended 5 2 Index Package Contents Pin Assignments AUI Port 2 BNC Port 2 RJ 45 Port 1 Port Attachment AUI e 2 7 BNC 2 7 RJ 45 2 4 2 5 Port Connections AUI 4 17 BNC 4 17 Cascaded 4 15 Daisy Chain 5 Fast Ethernet 6 Fiber Optic 4 17 4 18 RJ 45 4 15 Thick Ethernet 4 17 Thin Ethernet 7 Port and Cable Assignments 1 Port Status 2 15 Power Socket 8 Powering on the SwitcHub 0 Pre Installation Requirements 1 Product Specifications C 1 Product Support Services 1 Accton Offices 6 Bulletin Board Service 2 Hardware Repair Service 1 Interactive Fast Fax 3 Ordering Information 6 Technical Support E 3 Q Quick Installation iii SwitcHub 8s User s Guide R Restrictions on Cascade Length 6 RJ 45 Ports 5 S Safety Compliance 3 Shared Ethernet Limitations 1 Standards Compliance 1 Switch Ports 6 Switching Functions 1 Switching Met
5. Mbps auto sensing on RJ 45 Ports 7 and 8 100 Mbps on fiber optic Port 8 Full duplex or half duplex for twisted pair and fiber optic ports half duplex for the AUI port and coaxial media 10BASE T 1000 Category 3 4 5 twisted pair thin or thick Ethernet or fiber optic Ethernet via AUI transceiver 10BASE2 500 6 58 thin coaxial cable 100BASE TX 100Q Category 5 twisted pair cable 100BASE FX 50 125 um or 62 5 125 um guage multimode fiber optic cable 5 10BASE T and 1 RJ 45 AUI BNC Combo 10 Mbps port on rear panel 2 100BASE TX RJ 5 ports or 1 100 RJ 45 port and 1 fiber optic port SC type model ES2008 TF SC or ST type model ES 2008 TF ST 1 of the 10BASE T ports and the 100BASE TX ports can be set at MDI X or MDI Comprehensive array of LEDs for monitoring port link collision activity transmission speed transmission mode and bandwidth utilization 440mm x 240mm x 43mm 17 37 x 9 45 x 1 69 Full range power input 100 to 240V 10 50 to 60 Hz 3Hz For all models 0 65 Amp at 100 VAC 0 32 Amp at 240 VAC 0 C to 40 C 32 to 104 F Standard Operating 5 to 95 Noncondensing Specifications SwitcHub 8se User s Guide Switching Criteria Certification Emissions Immunity Safety Network Bridging Function Switching Method Maximum Filtering Rate Maximum Forwarding Rate Network Latency Address Table Queue Buffer CE Mark FCC Class A VCCI Class 2 CISPR Class IEC 801 2 3 4 U
6. cable is used Crossover cable should only be used if a daisy chain port i e RJ 45 ports 1 7 and 8 is not available 4 When using thin or thick Ethernet cabling be sure both ends are closed off with 50 ohm terminators External Adapters 1 Make sure the network interface hardware and software drivers for the attached devices are functioning properly Check the adapter cards and associated drivers used in any attached workstation or server Troubleshooting A 3 SwitcHub 8se User s Guide 2 Be sure the media transceivers including the one attached to the AUI Port on this switch are functioning properly Physical Configuration System Integrity If problems occur after altering the network configuration restore the original connections and try to track the problem down by implementing the new changes one step at a time Ensure that cable distances and other physical aspects of the installation do not exceed recommendations Chapter 2 As a last resort verify the switch s integrity with a power on reset Turn the power to the switch off and then on several times If the problem still persists and you have completed all the preceding diagnoses then contact your Accton distributor for further assistance Refer to Appendix E A 4 Troubleshooting Appendix B Port and Cable Assignments RJ 45 Port RJ 45 station ports MDI X can be attached to any devices
7. model number contact person telephone number and a problem description list If your unit is under repair warranty you must also give your purchase date Carefully pack your hardware If possible use the original carton Mark the RMA number on the carton and send it to your dealer Product Support Services E 1 SwitcHub 8se User s Guide After repair Accton will inform you of the date of delivery and the exact amount due Please send the payment by T T Telegram Transfer and Accton will send you the fixed component after receiving payment With or without warranty if the hardware is found to be free of defects you will only be charged for testing and handling Bulletin Board Service BBS e In countries other than the U S call 886 3 5770 654 to reach Accton Taiwan s modem line Modems with 14400 through 2400 baud are supported Choose 8 data bits 1 stop bit and no parity Standard VT100 terminal emulation is supported e Inthe United States call 408 452 8828 to reach the Accton USA s BBS line Modems with 14400 through 2400 baud are supported Choose 8 data bits 1 stop bit and none parity Standard VT100 terminal emulation is supported E 2 Product Support Services SwitcHub 8se User s Guide Interactive Fast Fax U S A Office Printed technical documentation can be FAX ed to your FAX machine 24 hours a day Technical Support Call 408 452 8811 to reach Accton s interactive Fast FAX serv
8. the USA be aware that some states do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to you Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you This warranty gives you specific legal rights and you may have other rights which vary from state to state All parts or components contained in this product are covered by Accton s Limited Lifetime Warranty for this product The product may contain fully tested recycled parts warranted as if new For warranty information All territories except North and South America Accton Technology Corporation International Headquarters No 1 Creation Rd III Science based Industrial Park Hsinchu 300 Taiwan R O C Phone 886 3 5770 270 886 3 5770 267 285 4 North and South America Accton Technology Corporation USA Headquarters 1962 Zanker Road San Jose CA 95112 U S A Phone 408 452 8900 Fax 408 452 8988 BBS 408 452 8828 Product Support Services E 5 SwitcHub 8se User s Guide Accton Offices Accton Technology Corporation International Headquarters No 1 Creation Rd Science based Industrial Park Hsinchu 300 Taiwan R O C Hsinchu Phone 886 3 5770 270 Fax 886 3 5770 267 886 3 5775 541 BBS 886 3 5770 654 Taipei Phone 886 2 577 1220 9 Fax 886 2 577 0816 Accton USA 1962 Zanker Road San Jose
9. 02 3 standard for connecting a PC server or other network device to a thin Ethernet backbone The BNC connector is a half twist locking shell typically used for thin coaxial cable Bus Topology A broadcast arrangement in which all network stations receive the same message through the cable at the same time Collision A condition in which two packets transmitted over a medium interferes with each other Their interference makes both signals unintelligible Combo Port A combination port found on the SwitcHub which includes RJ 45 AUI BNC media options This port automatically detects the current media type in use Configuration The way to set up a computer server or local area network Connection A logical binding between two or more users of an interconnection service Daisy Chain Port An MDI RJ 45 port used to cascade compatible devices in a daisy chain configuration using straight through twisted pair cable To cascade two devices either run a connection from the daisy chain port on one device to a station port on the other device or cascade the two devices by running crossover cable between MDI X station ports on both devices Ethernet A network communication system developed and standardized by DEC Intel and Xerox using baseband transmission CSMA CD access logical bus topology and coaxial cable The successor IEEE 802 3 standard provides for integration into the OSI model and extends the physical layer a
10. Appendix A Troubleshooting Diagnosing Switch Indicators The SwitcHub 8se can be easily monitored through its compre hensive panel indicators These indicators assist the network manager in identifying problems the hub may encounter This section describes common problems you may encounter and possible solutions Symptom Link indicator does not light up green after making a connection Cause Network interface e g anetwork adapter card on the attached device network cable or switch port is defective Solution Verify that the switch and attached device are powered on sure the cable is plugged into both the switch and corresponding device Verify that the proper cable type is used and its length does not exceed specified limits Chapter 2 Check the adapter on the attached device and cable connections for possible defects Replace the defective adapter or cable if necessary Symptom CPU indicator does not light up green after power on Cause Defective power outlet power cord internal power supply or CPU Solution Check the power outlet by plugging in another device that is functioning properly Check the power cord with another device Ifthese measures fail to resolve the problem have the unit s power supply replaced by an qualified Accton distributor Use the diagnostic procedures described in Chapter 4 i e refer to the section on Diagnostic Display Mode to verify that all other system compo
11. L CSA TUV GS filtering forwarding and learning cut through line speed line speed less than 20 microseconds 4 entries per system 64K bytes port for 10 Mbps ports 160K bytes port for 100 Mbps ports C 2 Specifications Appendix D Regulatory Standards Compliance EMI Certification FCC Class A Warnings Warning This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause interference to radio communications It has been tested and found to comply with the limits for a Class A digital device pursuant to Subpart B of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures are required to correct the interference You may use unshielded twisted pair UTP for RJ 45 connections 1 Wear an anti static wrist strap or take other suitable measures to prevent electrostatic discharge whenever handling this equipment 2 When connecting this device to a power outlet connect the field ground lead on the tri pole power plug to a valid earth ground line to prevent electrical hazards Canada Department of Communications Class A This digital apparatus does not exceed t
12. ants the repaired or replaced product to be free from defects in material and workmanship for the remainder of the original product s warranty period Consumable components are warranted only for two years E 4 Product Support Services SwitcHub 8se User s Guide Return Process Before you may return any Accton product to Accton you must request an RMA number by calling FAXing or writing Accton s Service Department at the address listed below If you ship the product you must assume the risk of damage or loss in transit You must use the original container or the equivalent and pay the shipping charge Accton may replace or repair the product with either a new or reconditioned product and the returned product becomes Accton s property At Accton s sole discretion Accton will issue a credit for either a comparable replacement Accton product or credit the original purchase price towards the purchase of any Accton product for any unrepairable defective product This warranty does not cover replacement of products damaged by abuse accident misuse neglect alteration repair disaster improper installation or improper testing ACCTON SHALL NOT BE HELD LIABLE FOR ANY LOSS OF PROFITS LOSS OF USE INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES CAUSED BY THE USE OF THIS PRODUCT OR INABILITY TO USE IT EVEN IF THE COMPANY OR ACCTON HAS BEEN ADVISED OF SUCH LIABILITY OR OTHER SPECIAL CLAIMS If you purchased this product in
13. chase by returning the registration card indicating the date of purchase and including proof of purchase There will be a minimal charge to replace consumable components such as fuses power transformers and mechanical cooling devices The warranty does not cover the product if it is damaged in the process of being installed Accton recommends that you have the company from whom you purchased this product install it THE ABOVE WARRANTY IS IN LIEU OF ANY OTHER WARRANTY WHETHER EXPRESS IMPLIED OR STATUTORY INCLUDING BUT NOT LIMITED ANY WARRANTY OF MERCHANTABILITY FITNESS FOR PARTICULAR PURPOSE OR ANY WARRANTY ARISING OUT OF ANY PROPOSAL SPECIFICATION OR SAMPLE ACCTON SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ACCTON NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY OTHER LIABILITY If the product is found to be defective within the first two years from the later of date of purchase or date of manufacture Accton s entire liability and your exclusive remedy for any breach of warranty shall be at its option to repair or replace the product at no charge except as set forth below If the product is found to be defective after two years from the later of date of purchase or date of manufacture Accton will charge a process and handling fee provided that you deliver the product along with a return material authorization RMA number either to the company from whom you purchased it or to Accton Accton warr
14. ent can be up to 500 1640 feet meters long and have a maximum of 100 nodes 10BASE F IEEE s specifications for running 10 Mbps Ethernet using multi mode fiber cable for point to point connections The maximum length of cable for a point to point connection is 2 kilometers The maximum number of nodes is undefined 10BASE T IEEE s specifications for running 10 Mbps Ethernet using twisted pair cable 100Q STP or UTP The maximum length of cable for a point to point connection is 100 meters 328 feet and the maximum number of nodes is 1024 100BASE FX IEEE s specifications for 100 Mbps Ethernet using multimode fiber optic cable The maximum length of cable for a point to point connection is 2 kilometers for a dedicated link i e full duplex connection or 180 meters 590 feet for a shared collision domain i e half duplex connection 100BASE TX IEEE s specifications for 100 Mbps Ethernet using twisted pair cable Category 5 1000 STP or UTP The maximum length of cable for a point to point connection is 100 meters 328 feet AUI Attachment Unit Interface A 15 pin interface specified by the IEEE 802 3 standard for connecting a network device to 10 Mbps Ethernet This port can be connected to a variety of media types including thin or thick Ethernet or fiber optic cable via an Ethernet transceiver or Media Access Unit MAU Glossary 1 SwitcHub 8se User s Guide BNC An interface specified by the IEEE 8
15. equirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC Warning Do not plug a phone jack connector in the RJ 45 port This may damage this device Les raccordeurs ne sont pas utilis pour le systeme t l phonique D 2 Regulatory Standards Compliance SwitcHub 8se User s Guide Safety Compliance Underwriters Laboratories Inc Important Before making connections make sure you have the correct Cord Set Check it read the label on the cable against the following specification list Operating Voltage Cord Set Specifications UL Listed CSA Certified Cord Set Minimum 18 AWG Type SVT 5 three conductor cord Maximum length of 15 feet Maximum length ot t5 teet Parallel blade grounding type attachment plug rated 15A 125V UL Listed CSA Certified Cord Set Minimum 18 AWG Type SVT or SJT three conductor cord Maximum length of 15 feet Tandem blade grounding type attachment plug rated 15A 125V Cord Set with HO5VV F cord having three conductors with minimum diameter of 0 75 mm IEC 320 receptacle Male plug rated 6A 250V The unit will automatically select the setting that matches the input voltage connected Therefore no additional adjustments are necessary when connecting it to any input voltage within the range marked on the rear panel 240 Volts For North America 240 Volts For Europe only Regulatory Standards Compliance D 3 Sw
16. ernet or fiber optic cable e g 10BASE F via an external transceiver Thick Ethernet is used Pin 15 as bus type backbone while fiber optic cabling can be used as Figure 2 AUI Port an long distance inter repeater link or a long distance uplink Pin Assignment 1 Collision In Shield 2 Collision In 3 Data Out 4 Data In Shield 5 Data In 6 DC Power 9 Collision In 10 Data Out 11 Data Out Shield 12 Data In 13 DC Power 14 Power Shield 7 8 15 No Connection Table 2 AUI Pin Assignments BNC Port The BNC Port provides a means of interfacing to 10 Mbps JP inner coaxial cable 1 6 thin Ethernet via an internal transceiver Conductor Thin Ethernet is used as bus type network backbone When installing BNC cable remember to close off both ends with a 500 terminator A T type connector 500 terminator are Figure B 3 BNC Port provided with this switch B 2 Port and Cable Assignments Appendix C Specifications Product Specifications Basic Criteria Access Method Standards Conformance Communication Rate Communication Mode Media Supported Number of Ports Indicator Panel Dimensions Input Power Power Consumption Temperature Humidity CSMA CD 10 Mbps and 100 Mbps IEEE 802 3 10BASE T 10BASE2 AUI IEEE 802 3u 100BASE TX 100BASE FX 10 Mbps on Ports 1 6 10 or 100
17. gnments are shown in Appendix B RJ 45 Connector Most common terminator for twisted pair wiring Glossary 3 SwitcHub 8se User s Guide Star Topology Physical connections for RJ 45 ports are limited to a star configuration 1 6 similar to hub and spoke arrangement This topology also requires that only one path exists between any two nodes and that data transmitted by any node is concurrently available to all other nodes within the same local network 1 6 immediate collision domain Station Port MDI X ports which are used for connecting the switch to any workstation or server that has a properly installed network adapter card For RJ 45 ports 1 7 and 8 the selector switch must be set to MDI X STP Shielded Twisted Pair Twisted pair wire covered with an external aluminum foil or woven copper shield designed to reduce excessive noise pick up or radiation The STP cable refered to in this manual is also sometimes called screened twisted pair ScTP Its impedance is 100Q and has the same pin assignment as UTP This cable should not be confused with the older 150Q cable type designed by IBM Terminator A resistor placed at each end of a thin or thick Ethernet cable to make sure that signals do not reflect back and cause errors UTP Unshielded Twisted Pair Cable composed of two insulated wires twisted together to reduce electrical interference used in common telephone cord 4 Glossary Index A
18. he Class A limits for radio noise emissions from digital apparatus as set out in the interference causing equipment standard entitled Digital Apparatus ICES 003 of the Department of Communications Cet appareil num rique respecte les limites de bruits radio lectriques applicables aux appareils num riques de Classe A prescrites dans la norme sur le mat riel brouilleur Appareils Num rques NMB 003 dict e par le ministere des Communications Regulatory Standards Compliance D 1 SwitcHub 8se User s Guide Class 2 Compliance This is a Class 2 product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment VCCD If this is used near a radio or television receiver a domestic environment it may cause radio interference Install and use the equipment according to the instruction manual LORE AMNERE SARRE H OBE gt PIERRE CT CORE KERA CHATA ILE AME L TWEET CORBMIV TPO TLE a 8 WARRI TI 550 RT gt TELOR ELT PS CE Mark Declaration of Conformance for EMI and Safety This is to certify that this product complies with ISO IEC Guide 22 and EN45014 It conforms to the following specifications EMC EN55022 1988 CISPR 22 1985 class B 000 4 2 1995 4kV CD 8 AD TEC 1000 4 3 1995 3V m TEC1000 4 4 1995 1kV power line 0 5kV signal line This product complies with the r
19. hods Cut through 1 3 1 5 Store and forward 1 5 Switching Technology 2 SwitcHub 8se 1 2 System Diagnostics 4 11 T Thick Ethernet vi 4 17 Thin Ethernet vi 4 17 Total Bandwidth 6 Transmission Mode Auto negotiation v 1 3 2 4 2 13 4 13 Selection v 2 6 2 13 4 12 Transmission Speed Auto sensing v 2 4 Troubleshooting 6 Cabling A 3 Configuration A 4 Device Indicators 1 External Adapters 3 Installation 2 Power and Cooling 2 Transmission Mode A 2 Twisted pair Cable Category 3 4 5 2 5 Index Verifying System Operation 2 15 AccTon ES2008 TX ES2008 TF SC ES2008 TF ST E0397 R02 150139 101
20. ice You will need a Touch Tone phone and a FAX machine or equivalent Choose document 911 for a listing of technical bulletins Your dealer or installer is the person who understands your network and Accton units If neither is available to help you Accton technical support engineers are available by FAX mail or phone Send your technical questions by FAX to International Headquarters 886 3 5770 267 USA Headquarters 408 452 8988 To obtain software upgrades connect via ftp to ftp accton com tw Send your technical questions by email to support accton com tw Mail your technical questions to International Headquarters USA Headquarters Accton Technology Corporation Accton Technology Corporation Attn Technical Support Attn Technical Support No 1 Creation Road III 1962 Zanker Road Science based Industrial Park San Jose CA 95112 U S A Hsinchu 300 Taiwan R O C During local business hours call International Headquarters USA Headquarters Monday through Friday Monday through Friday 8 am to 6 p m 7 am to 5 p m Pacific Time 886 3 5770 270 408 452 8900 or 800 926 9288 Product Support Services E 3 SwitcHub 8se User s Guide Limited Warranty Customer Remedies Accton warrants to the original owner that the product delivered in this package will be free from defects in material and workmanship for the lifetime of the product For the warranty to apply you must register your pur
21. itcHub 8se User s Guide Sicherheitshinweise 11 12 13 Die Steckdose mu sich in der N he des Ger tes befinden und leicht zug nglich sein Zum Reinigen den Stecker aus der Steckdose ziehen Beim Reinigen keine Fl ssigreiniger oder Sprays verwenden sondern ein angefeuchtetes Tuch Das produkt ger t nicht in Na r ume oder in der N he von Wasser benutzen wie z B Badezimmer Schwimmbad Sp lbecken usw Das Eindringen von Wasser kann zur Zerst rung des Ger tes f hren Das produkt ger t nicht auf einer unstabilen Unterlage wie z B Rollwagen Gestell usw aufstellen Es K nnte herunterfallen und Verletzungen oder Besch digungen von Mensch und Ger t verursachen Die Bel ftungs ffnungen nicht blockieren oder auf falscher Ober fl che wie Bett Sofa usw stellen Durch die Blockierung kann es zur Zerst rung des Ger tes durch berhitzung kommen Versuchen Sie niemals dieses Ger t selbst zu warten da beim ffnen oder Abnehmen des Geh uses die Gefahr eines elektrischen Schlages besteht Keine Gegenst nde auf das Anschlu kabel stellen damit es nicht durch scharfe Kanten zerst rt werden kann Keinerlei Gegenst nde durch die ffungen in das Ger t stecken da es dadurch sonst zu Kurzschl ssen kommen kann Bei St rungen des Ger tes den Wartungsdienst verst ndigen Bei Reperaturen d rfen nur Orginalersatzteile oder Bauteile mit gleichen Eigenschaften
22. nd media with repeaters and implementations that operate on fiber optics baseband and twisted pair 2 Glossary SwitcHub 8se User s Guide Fast Ethernet 100 Mbps network communication system based on Ethernet and the CSMA CD access method IEEE 802 3 Standard Standard for the physical and electrical connections in local area networks developed by the IEEE Institute of Electrical and Electronics Engineers The IEEE 802 3u standard covers these same issues for 100 Mbps networks LED Light emitting diode used on the SwitcHub for monitoring a device or network condition Local Area Network LAN A group of interconnected computers and support devices Media Access Control MAC A portion of the networking protocol that governs access to the transmission medium facilitating the exchange of data between network nodes MDI Port Medium Dependent Interface MDI is the IEEE standard for the twisted pair interface to 10 5 or 100BASE TX This 5 port can be used with straight through cable to connect the switch to a network interconnection device such as another switch or hub Pin out assignments are shown in Appendix B MDI X Port Medium Dependent Interface Crossed This RJ 45 port which crosses the receive and transmit signals internally can be used with straight through cable to connect the switch to any device that has a standard network interface e g workstation server bridge or router Pin out assi
23. nents are functioning properly If any component fails the diagnostic test contact your Accton distributor for assistance Troubleshooting 1 SwitcHub 8se User s Guide System Diagnostics Power and Cooling Problems Installation If the CPU indicator does not turn on when the power cord is plugged in you may have a problem with the power outlet power cord or internal power supply as explained in the previous section However if the unit powers off after running for a while check for loose power connections power losses or surges at the power outlet and verify that the fan on back of the unit is unobstructed and running prior to shutdown If you still cannot isolate the problem then the internal power supply may be defective In this case contact your Accton distributor for assistance Verify that all system components have been properly installed If one or more components appear to be malfunctioning e g the power cord or network cabling test them in an alternate environment where you are sure that all the other components are functioning properly Transmission Mode If you have any devices attached to the switch other than on RJ 45 Ports 7 or 8 that operate at half duplex then you must manually set the transmission mode for the corresponding port on the switch Refer to Setting the Communication Mode in Chapter 4 The default method of selecting the transmission mode for RJ 45 Ports 7 and 8 100 Mb
24. ps is auto negotiation Therefore 11 the Link signal is disrupted e g by unplugging the network cable and plugging it back in again or by resetting the power the port will try to reestablish communications with the attached device via auto negotiation If auto negotiation fails 2 Troubleshooting SwitcHub 8se User s Guide then communications are set to half duplex by default Based on this type of industry standard connection policy if you are using a full duplex device that does not support auto negotiation communications can be easily lost i e reset to the wrong mode whenever the attached device is reset or experiences a power fluctuation The best way to resolve this problem is to upgrade these devices to versions which support auto negotiation Cabling 1 Verify that the cabling type is correct Be sure all cable connectors are securely seated in the required ports Use 1000 straight through cable for all standard connections Use Category 5 cable for 100 Mbps Fast Ethernet connec tions or Category 3 4 or 5 cable for standard 10 Mbps Ethernet connections Multimode cable with SC or ST type connectors should be used for the 100 Mbps fiber optic port 2 Make sure all devices are connected to the network Equipment may have been unintentionally disconnected from the network 3 When cascading two devices using RJ 45 station ports at both ends of the cable i e not an MDI port make sure a crossover
25. verwendet werden Andere Bauteile k nnen Feuer elektrischen Schlag oder andere Gefahren verursachen Nach Beendigung von Wartungsarbeiten oder Reperaturen durch den Kundendienst sollte die Sicherheitspr fung durchgef hrt werden Bei l ngerem Stillstand des Ger tes ist diese von der Versorgungs spannung zu trennen Dies verhindert eine Besch digung des Ger tes durch eine berspannung in der Zuleitung Der arbeitsplatzbezogene L rmschutzpegel nach DIN 45 635 ist kleiner 70dB A D 4 Regulatory Standards Compliance Appendix E Product Support Services Product Registration Problem Report Fill in the Owner Registration Card and mail itto Accton Technology Corporation Accton will keep your record and inform you of any new Accton unit developments If problems occur during unit operation please check the adapter configuration settings cables connectors network terminators hardware compatibility and other network components Write a description of the problem including what problems occurred when they occurred duration of the problems the unit number serial number hardware software and the DOS version that you are using Then contact your dealer or Accton Technology Corporation for assistance Hardware Repair Service You must get an RMA Return Materials Authorization number before returning any hardware for repair To obtain this number please inform Accton of your company name address unit name and
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