HP 10Base-T Reference Guide
Contents
1. 200 AB 00000 i L LJ O0000 3 00000 ORD 00000 gt LJ T Connecting the Hub 8U to a Fiber Optic Backbone With an HP Fiber Optic Transceiver Module for 10Base FL networks you can connect your hub to a fiber optic backbone The following illustration shows a hub with an HP Fiber Optic Transceiver Module connected to a fiber optic backbone HP J2606A Fiber Optic fiber optic Transceiver Module installed cable in the AUI Xcvr Slot For more information about cabling configuration see the documentation accompanying the optional transceiver modules See the Designing HP AdvanceStack Networks guide for information on valid network topologies 1 13 quH ey Sureqsu Installing the Hub Installing the Hub 5 Connect the hub to an ASCII console optional The optional HP AdvanceStack 8U 16U SNMP Module enables you to configure monitor and troubleshoot the hub from an ASCII console ASCII console m Troubleshooting Approaches m Diagnosing with the LEDs Installation Problems Cabling Problems Unusual Network Activity Diagnostic Tests m Customer Support Services Replacement Instructions Troubleshooting Troubleshooting 2 2 Troub2. Twisted Pair Cascade Connections 1 10 ThinLAN Connections 1 11 Connecting Hubs to Network Backbones 1 12 Connecting the Hub 8U to a ThinLAN Backbone 1 12 Connecting the Hub SU to a Fiber Optic Backbone 1 13 5 Connect the hub to an ASCII console optional 1 14 Troubleshooting Troubleshooting Approaches 2 2 Diagnosing with the LEDS 2 9 LED Pattern During Self Test 2 3 LED Error Indications 2 4 Installation Problems 2 6 Incorrect Hardware Installation 2 6 Cabling Problems 2 6 Connections 06 sae PRE edera a 2 6 Non standard Cables 2 7 TONOIOUY ra tat en We ws fe Ua chad a oe oe oe LE 2 7 Unusual Network Activity 2 2000 2 7 DIAGNOSE TOSIS 4 5 diy 5 4 es Ae He A ERE er 2 8 Testing the Hub Only 2 8 Testing Twisted Pair Cabling 2 8 viii Testing End to End Network Communications Replacement Instructions Customer Support Services Hub Reference FTront OL the AUD acilia idee Ln Hub status LEDS 3 3 8 di a ia Port status LEDS BACK OF the Dub s 2 u 4 era a nn e ee end ui Management Slot a oa vs so ran rn nen AUVXEIEDIOE as rien Hub Operation sa gt di
3. 8U 16U SNMP Module With the module you can configure monitor and troubleshoot the hub using either of the following options Serially connect an ASCII console to the hub Use HP AdvanceStack Assistant HP ASA to monitor traffic and manage the hub from a PC running ASA on the network HP ASA formerly HP Interconnect Manager is included at no extra cost with the 8U 16U SNMP Module HP ASA works over the network through either a twisted pair cable connected to any UTP port or a fiber or ThinLAN cable connected to an optional ThinLAN or fiber optic transceiver installed in the back of the hub An AUI Xcvr Slot in the back of the hub for several types of transceiver modules including ThinLAN AUI twisted pair and fiber optic With the optional Thin LAN transceiver you can hot swap a hub Hot swap means that removing a hub connected to other hubs through the ThinLAN transceiver does not bring down the network you can upgrade or replace hubs in a stack with the network up and running The AUI Port Module with an external transceiver allows you to connect to an Ethernet lEEE 802 3 LAN The twisted pair module adds a ninth RJ 45 port for a total of nine twisted pair ports on the hub The fiber optic module allows you to connect your hub to a fiber optic backbone LEDs showing power activity collisions and port status provide quick easy to read hub status information and troubleshooting assistance A small footprint that allows yo
4. nach dem Hinweis WARNING oder CAUTION erst fort nachdem Sie den Gefahrenzustand verstanden und die entsprechenden Ma nahmen ergriffen haben Dieses Ger t enth lt innen keine durch den Benutzer zu wartenden Teile Wartungs Anpassungs Instandhaltungs oder Reparaturarbeiten d rfen nur von geschultem Bedienungspersonal durchgef hrt werden Dieses Ger t hat keinen Netzschalter es wird beim Anschlie en des Netzkabels eingeschaltet 4 Hinweise zur Sicherheit Considerazioni sulla sicurezza Simboli di sicurezza Simbolo di riferimento alla documentazione Se il prodotto contrassegnato da questo simbolo fare riferimento alla documentazione sul prodotto per ulteriori informazioni su di esso WARNING La dicitura WARNING denota un pericolo che pu causare lesioni o morte CAUTION La dicitura CAUTION denota un pericolo che pu danneggiare le attrezzature Non procedere oltre un avviso di WARNING o di CAUTION prima di aver compreso le condizioni di rischio e aver provveduto alle misure del caso Nessun componente di questo prodotto pu essere riparato dall utente Qualsiasi lavoro di riparazione messa a punto manutenzione o assistenza va effettuato esclusivamente da personale specializzato Questo apparato non possiede un commutatore principale si mette scotto tensione all inserirsi il cavo d alimentazione Considerazioni sulla sicurezza D SJU9QULIIBIS A1o en89y pue J9JeS Safety and Regulatory Statement
5. the AdvanceStack 8U 16U SNMP module you can also run a Link test directly to or from a hub directly between a hub and another device rather than just through the hub SUTJOOUYSI QNOAL Troubleshooting 2 10 Troubleshooting Replacement Instructions Remove any of the optional modules that you have installed into your hub before returning it to Hewlett Packard Keep the optional modules to install them into the replacement hub The modules can be damaged easily by small amounts of static electricity Observe these precautions when removing and installing the modules When handling the module first touch a grounded metal surface or wear an anti static wrist strap that is attached to grounded metal m To prevent generating static electricity minimize your movement around the work area or work in an anti static work area Handle the module carefully at all times Avoid flexing it or touching its components The faulty hub should be returned to Hewlett Packard with the AUI Xcvr and management slots empty and the cover plates installed For information about how to remove the modules see the manuals accompanying the HP Transceiver Module and the HP AdvanceStack SU 16U SNMP Module Troubleshooting Customer Support Services Hewlett Packard offers support 24 hours a day seven days a week through the use of automated electronic services including World Wide Web Hewlett Packard FTP Library Service on the Intern
6. transmitted to all the other hub network ports The hub regenerates the data without interpreting the contents so it can be used in either IEEE 802 3 or Ethernet networks and with any upper level protocol Collision Detection The hub also performs collision detection A collision occurs when two nodes try to transmit at the same time When the hub detects a collision it stops repeating the colliding transmissions and starts transmitting a jamming signal The jamming signal tells the transmitting nodes that a collision has occurred The colliding nodes then stop transmitting for a random amount of time before attempting to retransmit the data Once the collision condition is removed the hub stops transmitting the jamming signal and normal operation is resumed Auto Partitioning The hub will automatically partition temporarily disable one of its ports if a collision condition exists for an excessive duration between 1024 and 2048 bit times or occurs during each of 32 consecutive attempts to transmit The hub monitors the partitioned port and automatically re enables the port when a minimum length packet can be successfully transmitted or received without a collision occurring Excessive collisions may be caused by faulty wiring If a port s transmit Tx wires have been shorted to the receive Rx wires of any port a collision will be detected when that port attempts to transmit If a port s receive Rx wires are not co
7. 6 EEC and carries the CE marking accordingly LED s in this product s are Class 1 in accordance with EN60825 1 1994 The J2610A has been tested to and passes Class B when shielded network cables are used Tested with Hewlett Packard Co products only Roseville February 26 1997 x dI Sandra L Sheehan Quality Manager European Contact Your local Hewlett Packard Sales and Service Office or Hewlett Packard GmbH Department TRE Herrenberger Strasse 130 D 71034 B blingen FAX 49 703 1 14 3143 10 Declaration of Conformity Index Index Index A ac adapter plugging into the hub 1 5 C 2 plugging into the wall 1 5 Activity LED 3 2 AdvanceStack Assistant v at a glance iii ASCII console 1 14 AUI Xcvr LED 3 3 AUVXcvr slot 3 4 auto partitioning basic operation 3 5 B back of the hub installing optional modules 1 3 BBS obtaining software from 2 11 brackets mounting how to order 1 8 bulletin board obtaining software from 2 11 C cables cabling problems 2 6 network connections A 2 twisted pair connector pin outs A 3 cables and connections A 2 collision detection 3 5 Collision LED 3 2 CompusServe obtaining files from 2 11 connections hub to hub networking 1 10 network 1 9 out of band management 1 14 connector specifications B 2 countries ac adapters for 1 2 customer service types of 2 11 D Declaration of Conformity C 10 description iii Index 2 dia
8. HP AdvanceStack 10Base T Hub 8U Installation and Reference Guide Copyright Hewlett Packard Company 1997 AII Rights Reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws Publication Number J2610 90201 Edition 1 July 1997 Applicable Product HP J2610B Trademark Credits MS DOS and Microsoft are U S registered trademarks of Microsoft Corporation Ethernet is a registered trade mark of Xerox Corporation 8000 Foothills Boulevard MS 5551 Roseville California 95747 5551 http www hp com go network city Disclaimer The information contained in this document is subject to change without notice HEWLETT PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Hewlett Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Hewlett Packard Warranty See the warranty booklet included with the product A copy of the specific warranty terms applicable to your Hewlett Packard product and replacement parts can be ob tained from your HP Sales and Service Office or au
9. SA 950 NOM 019 SCFI 1994 NOM 001 SCFI 1993 Specifications Electromagnetic Emissions FCC part 15 Class A EN 55022 Class A CISPR 22 Class A VCCI Level Complies with Canadian EMC Class A requirements Immunity See the Declaration of Conformity for details at the end of the Regulatory Statements Accoustic Noise Not applicable SuUONnBIYULoads This chapter covers the following topics m Safety and Regulatory Statements Declaration of Conformity Safety and Regulatory Statements Safety and Regulatory Statements 2 Safety Information Safety Information Safety Symbols N Documentation reference symbol If the product is marked with this symbol refer to the product documentation to get more information about the product WARNING AWARNING in the manual denotes a hazard that can cause injury or death CAUTION A CAUTION in the manual denotes a hazard that can damage equipment Do not proceed beyond a WARNING or CAUTION notice until you have understood the hazardous conditions and have taken appropriate steps Servicing There are no user serviceable parts inside these products Any servicing adjustment maintenance or repair must be performed only by service trained personnel These products do not have a power switch they are powered on when the power cord is plugged in Informations concernant la s curit Symboles de s curit Symbole de r f rence la documentation Si le produit est mar
10. all mounting 1 7 Internet obtaining latest drivers from 2 12 obtaining software from 2 11 L LAN adapter cards to test end to end communications 2 9 LEDs Activity 3 2 AUI Xevr 3 3 Collision 3 2 diagnosing the hub status 2 3 pattern during self test 2 3 patterns showing error conditions 2 4 Power 3 2 twisted pair ports 3 3 verifying hub operation 1 6 link beat description 3 6 list included parts 1 2 Index M management slot 3 4 managing the hub 1 14 MDI switch using 1 10 MDI X switch using 1 10 mounting brackets ordering 1 8 mounting the hub 1 7 precautions 1 7 under a desk 1 8 wall mounting 1 7 N Network backbones 1 12 network connections hub to hub connections 1 10 port connections 1 9 network management v non standard cables 2 7 O operation of the hub description 3 5 out of band management connecting to the hub 1 14 P partitioning automatic partitioning of ports 3 5 parts list 1 2 physical specifications of hubs B 2 port LEDs twisted pair 3 3 ports connection procedures 1 9 power LED pattern during 2 3 Precautions 1 3 1 5 Power LED 3 2 precautions for mounting the hub 1 7 procedures hub installation 1 2 network connections to the hub 1 9 network port connections 1 9 wall mounting the hub 1 7 Index 3 X9puI Index Index R recommended cables A 2 Regulatory statements C 9 replacement of the hub 2 10 resetting the hub tr
11. anceStack 8U 16U SNMP management console Included Parts Each HP AdvanceStack Hub 8U has the following components shipped with It m HP AdvanceStack Hub SU Installation and Reference Guide this manual J2610 90101 m An ac power cord one of the following Australia New Zealand 8120 1369 Denmark 8120 2956 Europe 8120 1689 Japan 8120 4753 Switzerland 8120 2104 United Kingdom Hong Kong 8120 1351 U S Canada 8120 1378 m A power supply part number 0950 3058 Caution Installing the Hub 1 Install add in modules optional The HP AdvanceStack Hub 8U can be custom configured by installing the optional HP AdvanceStack 8U 16U SNMP Module and or an HP Transceiver Module If you intend to install any of these optional modules refer to the documentation that was shipped with it It may be more convenient to install these optional modules before installing the hub under a desk or other location Inspect your installation site and identify whether the hub s module slots will be accessible EN Eo ia a 5e Gi O i The HP J3133A AdvanceStack 8U 16U SNMP Module enables you to connect a PC to the hub to configure monitor and troubleshoot the hub To avoid possible damage to module or transceiver circuitry disconnect the power cable from the hub before installing or removing the optional SNMP Module or a transceiver 1 3 quH ey Surre7su Installing the Hub Installing the Hub The HP Tr
12. ansceiver Modules provide extended connectivity choices from the hub to Ethernet networks Management Slot 10 S juowabeuey The following optional transceiver modules provide these additional connectivity options HP J2608A ThinLAN Transceiver Module for 10Base 2 networks Y HP J2608A ThinLAN HP J2606A Fiber Optic Transceiver Module for 10Base FL networks Fiber Optic HP J2607A Twisted Pair Transceiver Module for 10Base T networks Es 5a LI Twisted Pair Long Cable HP J2609A AUI Port Module for connecting a standard IEEE 802 3 external transceiver to the hub The HP AdvanceStack 8U 16U SNMP Module and HP Transceiver Modules and their cabling configurations are described in their accompanying documentation Installing the Hub 2 Verify the hub s operation Your hub uses power from an ac adapter Note If your installation requires a different power cord than the one supplied with the hub contact your HP authorized LAN dealer or your local HP sales office The hub does not have a power switch it is powered on when the power cord is plugged in To provide power to the hub follow these steps 1 Plug the power supply into the receptacle on the hub marked Power 2 Plug the ac power cord into an ac power source When installing the Hub SU note that the ac outlet must be installed near the equipment and should be easily accessible Example of an ac power cord for a U S outlet Pl
13. cial tools are necessary Be certain to pick a sturdy table in an uncluttered area You may want to secure the hub s cables to the leg of the table to prevent people from tripping over them Equipment Required To mount the hub on a wall or under a desk you will need the following equipment two number 6 by half inch or M3 x 12 mm pan head wood screws not included with the hub m Phillips cross head screwdriver not included with the hub Important Installing the Hub Mounting Precautions Before mounting the hub follow these mounting precautions Plan the hub s location and orientation relative to other devices and equipment Also consider the cabling that will be attached to the hub and ports that will be used In the front of the hub leave 3 inches 76 mm of space for twisted pair cables In the back of the hub leave 3 inches 7 cm of space for the ac power cord the AdvanceStack 8U 16U SNMP module and a serial connector Ensure that the HP AdvanceStack hub s do not overload the power circuits wiring and over current protection To determine the possibility of overloading the supply circuits add together the ampere ratings from the nameplates of all your hubs and other equipment installed on the same circuits and compare the total with the rating limits for the supply circuits Do not install the HP AdvanceStack hub in an environment where the operating ambient temperature might exceed 55 C 131 F Ma
14. ect your hub to another hub In this position the hub reverses the Tx and Rx port pins for you This allows you to use straight through cable rather than cross over cable to connect two hubs together Inthe MDI X position use Port 1 to connect your hub to a PC or similar device using straight through cable In the MDI X position the switch is exposed by 0 10 inches 2 5 mm in front of the bezel MDI MDI X switch C HEWLETT ILA PACKARD AdvanceStack Hub 8U TETT TEFFO MDI X L Power Activity Collision AUI Xcvr You must disconnect the device connected to Port 1 before changing the position of this switch If you push the MDI MDI X switch and change its position while your network is running the hub or PC connected to Port 1 will be disrupted To restore your connection push the MDI MDI X switch in again Installing the Hub In the following illustration the first hub is connected to two end nodes and to a second hub Hub attached to Port 1 switch in MDI position and Ge straight through cable is used Mok Up to 100 meters PC attached to Port 1 ati switch in MDI X position a and straight through cable is used ThinLAN Connections With an HP ThinLAN Transceiver Module for 10Base 2 networks you can connect your hub to a thinLAN network The following illustration shows a hub with an HP ThinLAN Transceiver Module connected to a Thi
15. eds accepted norms often indicates a hardware problem with one or more of the network components possibly including the hub Unusual network activity is usually indicated by the LEDs on the front of the hub or measured with one of the diagnostic tools in the ASCII console Refer to Diagnosing with LEDs earlier in this chapter for information on using LEDs to identify unusual network activity 2 7 8urnooyso qnoap Troubleshooting Caution 2 3 Troubleshooting Diagnostic Tests If you have an HP AdvanceStack 8U 16U SNMP Module installed into the hub the ASCII console provides tests and indicators that can be used to monitor the hub and its network connections See the documentation shipped with the HP AdvanceStack 8U 16U SNMP Module and the console s online Help system for more details about these tests and indicators Testing the Hub Only If you believe that the hub is not operating correctly you can test the hub s circuitry by resetting the hub through one of these procedures Unplug the ac adapter from the hub and plug the ac adapter into the hub again fan HP AdvanceStack 8U 16U SNMP Module is installed select the Reset option from the ASCII console or press the Reset button on the module Each of these procedures will power cycle the hub and execute its self test If all of the Port LEDs stay on after 3 seconds the hub may have failed its self test See Diagnosing with the LEDs earlier in this c
16. ents FCC Statement For U S A Only Federal Communications Commission Radio Frequency Interference Statement Warning This equipment generates uses and can radiate radio frequency energy If it is not installed and used in accordance with the instruction manual it may cause interference to radio communications It has been tested and found to comply with the limits for a Class A comput ing device pursuant to Part 15 of FCC Rules which are designed to provide reasonable protec tion against such interference when operated in 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 may be required to correct the interference If this equipment causes interference to radio reception which can be determined by unplug ging the power cord from the equipment try these measures Re orient the receiving antenna Relocate the equipment with respect to the receiver Plug the equipment and receiver into differ ent branch circuits Consult your dealer or an experienced technician for additional sugges tions VCCI Class 1 For Japan Only CORRI TARA CR LRM ICAO TERNA RE RE CA Le HN TO REEL TE LIA RAUL E FEE A E R h ag VCCI RKECHBALTIEBYE FS ET EER E za Zok ELA CENA 3773 FLEY a VRAIMENT EREZEZ LCL NEO Ed DURA IT HE gt TIE LW MORWALTFEAW This is a class A product In a domestic environment t
17. et CompusServ Hewlett Packard BBS HP FIRST FAX Retrieval Service HP Network Phone In Support NPS SNMP firmware for the AdvanceStack 8U 16U SNMP module j3133a exe is available through several of the above services Refer to the card at the front of this manual 2 11 8urnooyso qnoap Front of the Hub Back of the Hub Hub Operation Hub Reference Hub Reference Hub Reference Front of the Hub Hub status LEDs The hub status LEDs indicate whether the hub is functioning properly For further details on error conditions indicated by the Status LEDs see chapter 2 Troubleshooting LED PO State Meaning of LED Power On The hub is receiving power green Off The hub is not receiving power Activity Flickering ON while a packet is being transmitted Normally the LED green appears to flicker In heavy traffic it may appear on all the time Collision Flickering This LED is on while a collision is detected on any of the attached orange cable segments If collisions are infrequent which is normal the light may be imperceptible In a network with heavy traffic the LED will glow and flicker dimly indicating collisions are occurring If it appears on continuously with no flicker it is a possible indicator of a network fault See chapter 2 Troubleshooting Hub Reference Port status LEDs The following table provides LED port status information If an AdvanceStack 8U 16U SNMP module
18. evices for causes of the excess collisions The transceiver port has been auto partitioned because of too many collisions Check cable terminations connections SOE setting on any external transceivers and status of attached network devices for causes ofthe excess collisions The hub has failed its self test Power cycle the hub Ifthis condition persists call your HP authorized LAN dealer or HP representative for assistance 2 5 8urnooyso qnoap Troubleshooting 2 6 Troubleshooting Installation Problems By carefully following the installation procedures described in chapter 1 Installing the Hub you can avoid most problems caused by improper installation of the hub or one of its components Incorrect Hardware Installation Incorrectly installing the hub ac power cord power supply the HP Ad vancestack 8U 16U SNMP Module or a transceiver module can result in one or all of these components malfunctioning or not functioning at all If one or all of these components appear to not be functioning re check the installa tion procedure and if necessary re install the component correctly Cabling Problems A high percentage of network problems are due to faulty cabling Cabling problems usually result in the failure of a hub to connect to a network another hub or the end nodes Connections All cables attached to the hub should be checked to see that they are properly connected Proper network connections a
19. gnosing with the LEDs 2 3 diagnostic tests 2 8 testing the hub only 2 8 testing twisted pair cabling 2 8 E electrical specifications B 2 electromagnetic specifications B 2 environmental specifications B 2 C 2 Ethernet networks ili external power supply 1 2 F fax using to get HP product information 2 11 features v fiber optic backbone 1 13 front of the hub status LEDs 3 2 ftp obtaining files from HP 2 11 H Hourly support calling for 2 14 HP AdvanceStack SNMP Module LED pattern during self test 2 3 part of hub installation 1 3 HP FIRST FAX Retrieval Service using 2 14 HP FTP Library Service using 2 12 hub at a glance ili cables A 2 connecting to fiber optic backbone 1 13 connecting to network backbones 1 12 description ili features v included parts 1 2 installation problems 2 6 installing 1 2 mounting 1 7 C 2 operation 3 5 replacing 2 10 specifications B 2 troubleshooting 2 2 hub operation auto partitioning 3 5 collision detection 3 5 link beat 3 6 verifying 1 5 Hub 8U ThinLAN connections 1 11 hub to hub network connections using the ThinLAN port 1 14 with the MDI switch 1 10 I IEEE 802 3 Type 10Base T standard iii included parts 1 2 installation problems 2 6 installing the hub equipment needed 1 7 mounting procedures 1 7 C 2 network connections 1 9 out of band management connections 1 14 summary of steps 1 2 verifying hub operation 1 5 w
20. hapter to interpret the LED display Cycling power on the hub will temporarily disable the network and could have other adverse effects Testing Twisted Pair Cabling The twisted pair cable attached to the hub must be compatible with the IEEE 802 3 Type 10Base T standard To verify that your cable is compatible with this standard you can use the HP J2263A Cable Test Set The older HP 28687A Wire Test Instrument can also be used HP also offers a wire testing service Contact your HP authorized LAN dealer or your local HP sales office for more information Troubleshooting Testing End to End Network Communications Both the hub and the cabling can be tested by running an end to end communications test a test that sends known data from one network device to another through the hub such that you can verify that the data was correctly transmitted between the devices For example if you have two PCs on the network that have HP LAN adapter cards you can use the Link Test option from the card s test program to verify the entire communi cation path between the two PCs In the following illustration two computers are connected together with twisted pair cable to two different ports on the hub HEWLETT Ca PACKARD AdvanceStack Hub 8U PC sending test packets N PC responding to the test packets See your LAN adapter card s manual for information on running an end to end communication test With
21. heir normal operational states If a hub hardware fault exists the hub will not complete self test This will be indicated by an abnormal LED pattern The display of the Port LEDs pattern depends on whether the HP AdvanceS tack 8U 16U SNMP Module is installed If you have an HP AdvanceStack 8U 16U SNMP Module installed see the manual provided with the module for LED information The tables on the following two pages list the hub s LEDs their possible states and diagnostic tips to resolve any error conditions These tables assume an HP AdvanceStack 8U 16U SNMP Module is not installed 2 3 8urnooyso qnoap Troubleshooting 2 4 Troubleshooting LED Error Indications LED patterns indicating problems Power AUI Xcvr Twisted Pair Port Port Flashing intermittently This LED is not important for the diagnosis Diagnostic Tips Verify that the power supply is plugged into an active power source and to the hub Make sure these connections are snug Try power cycling the hub by unplugging and plugging the hub back in Ifthe Power LED is still not on verify the ac source works by plugging another device into the outlet Or try plugging the hub into a different outlet If this condition persists call vour HP authorized LAN dealer or HP representative for assistance Check cabling on the indicated port all the way out to the device attached to that port Faulty wiring or a bad connection could exist somewhere in tha
22. his product may cause radio interference in which case the user may be required to take adequate measures 8 Regulatory Statements Safety and Regulatory Statements Regulatory Statements 9 Declaration of Conformity The following Declaration of Conformity for the HP AdvanceStack Hub 8U complies with ISO IEC Guide 22 and EN 45014 The declaration identifies the product the manufacturer s name and address and the applicable specifi cations that are recognized in the European community DECLARATION OF CONFORMITY according to ISO IEC Guide 22 and EN45014 Q Manufacturer s Name Hewlett Packard Company Y Gia Manufacturer s Address 8000 Foothills Blvd Y Roseville CA 95747 5502 RE U S A Er x S declares that the product 5 Product Name HP AdvartceStack 10Base T Hub 8U Gen Model Number HP J2610B Accessories covered HP J2606A HP J2607A HP J2608A HP J2609A HP J3133A conforms to the following Product Specifications Safety IEC 950 1991 A1 A2 EN60950 1992 A1 A2 EMC EN 55022 1994 CISPR 22 1993 class A EN 55022 1994 CISPR 22 1993 class B EN50082 1 1992 prEN 55024 2 1992 IEC 801 2 1991 4 kV CD 8 kV AD prEN 55024 3 1991 IEC 801 3 1984 3 V m prEN 55024 4 1992 IEC 801 4 1988 1 kV power line 0 5 kV signal line Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 33
23. inch or M3 x 12 mm pan head N wood screw Installing the Hub 4 Complete the network connections to the hub Reconnect the hub to the power source and then make the network connections to the hub Typical hub connections are Hub to device connections Connecting to network devices such as computers and printers Hub to hub connections Connecting to another HP AdvanceStack Hub or other Ethernet hub Hub to network backbones Connecting to a network backbone This section describes the different ways you can connect your hub to your network Connecting Devices to the Hub To connect a device to the hub push the RJ 45 plug into the RJ 45 jack until the tab on the plug clicks into place Q HEWLETT LA PACKARD AdvanceStack Hub 8U he RE Ey E WO O OT MDI X Power Activity Collision AUI Xcvr RJ 45 plug unshielded twisted pair cable to a computer or printer 1 9 quH ey Surreysu Installing the Hub Caution 1 10 Installing the Hub Connecting Hubs Together Twisted Pair Cascade Connections To expand your network the hub can be connected to other hubs by using the Media Dependent Interface MDI switch The MDI MDI X switch controls how the signals are sent through the twisted pair cable connected to Port 1 The hub is shipped with the switch in the MDI X position The switch is a pushbutton switch with two positions Inthe MDI position use Port 1 to conn
24. is installed additional LED states may be observed For information about the hub LEDs when a module is installed see the manual accompanying the module LED PO State Meaning of LED AUI Xcvr An optional HP Transceiver Module is properly installed in the Port green hub s back panel slot An HP Transceiver Module is not installed The HP Transceiver Module port has auto partitioned See Auto Partitioning later in this chapter Twisted pair Link beat is detected from the attached node Port green The port is not receiving the link beat signal from the attached node The port has been auto partitioned See Auto Partitioning later in this chapter The slow flash is approximately once every 1 5 seconds 9DU919J9Y ANH Hub Reference 3 4 Hub Reference Back of the hub The back of the hub has two slots the Management Slot and the AUI Xcvr Slot Management Slot The management slot is used to add an HP J3133A AdvanceStack 8U 16U SNMP Module For more information see the Install Add in Modules section in chapter 1 AUVXcvr Slot The AUI Xcvr Slot is used to add an HP Transceiver Module For more information see the Install Add in Modules section in chapter 1 Hub Reference Hub Operation The HP AdvanceStack Hub 8U is a multiport repeater that conforms to the IEEE 802 3 repeater specification Data signals coming into the hub from any of its ports are automatically regenerated and
25. ke sure the air flow around the sides of the hub is not restricted Marking the Location A hub should be mounted only to a wall or wood surface that is at least 1 2 inch 12 7 mm plywood or its equivalent 1 Using the illustration on the next page mark the screw hole locations on the mounting surface 4 13 16 inches 122 2 mm apart Make sure you allow enough room to make the cable connections to the hub and to be able to access the cables if they have to be moved Using a Phillips cross head screwdriver screw in the two pan head wood screws leaving 1 sth inch 3 mm between the screw head and the mounting surface You may need to first pre drill the surface with a 3 32 mch bit 1 7 quH 943 Surpezsu Installing the Hub Installing the Hub Mounting the Hub After the screws are in place follow the steps below for mounting the hub on a wall or under a desk 1 For a vertical mount such as a wall place the bottom of the hub against the screws For a horizontal mount under a surface such as a desk or table turn the hub upside down and gently place the hub up against the screws 2 Slide the hub in either of the two diagonal directions to secure the hub into place 4 1 8 1 1 4 2 1 2 lt _ gt 31 75mm 63 5mm 106 3mm A Ch MT 4 13 16 122 2mm E 1 4 y 6 5mm A Bi 2 112 Tt Actual size of number 6 by half
26. leshooting This chapter describes how to diagnose and resolve operating problems with your hub Additionally if you have an HP J3133A AdvanceStack 8U 16U SNMP Module installed you can use ASCII console software for certain diagnostic functions to troubleshoot the hub Troubleshooting Approaches There are three primary ways to diagnose hub problems m Bycheckingthe LEDs on the front of the hub as described in Diagnosing with the LEDs later in this chapter By visually inspecting the unit and all its connections as described in the Installation Problems and Cabling Problems sections later in this chapter By using the ASCII console diagnostic functions as described in the documentation shipped with the HP AdvanceStack 8U 16U SNMP Module and in the software online help system Troubleshooting Diagnosing with the LEDs Most problems with the hub can be diagnosed using the LEDs on its front panel This section describes the normal LED pattern during self test and LED patterns that indicate error conditions on the hub LED Pattern During Self Test Whenever the hub is powered on or reset it performs a self diagnostic test During the self test all of the LEDs turn on for a short time If an HP Transceiver module is properly installed the AUI Xcvr LED stays lit If an HP Transceiver module is not installed the AUI Xcvr LED turns off When the self test completes successfully the LEDs go into t
27. nLAN backbone 50 ohm terminator HP J2608A ThinLAN Transceiver Module installed in the AUI Xcvr Slot Ss ThinLAN Y HP 2608A La HP J3133A Security Fault km Ni thin coax cable quH y Surreysu Installing the Hub Installing the Hub You can connect up to 30 hubs together on a common ThinLAN segment The ThinLAN segment can include a computer attached to a hub at one end of the segment that can communicate with a computer attached to another hub at the other end of the segment By using the BNC port on the module the maximum repeater hop count increment through the entire segment is only two The following illustration shows you how to connect three hubs together from one ThinLAN port to another 50 ohm terminator ThinLAN coax connecting the hubs together HP AdvanceStack 10Base T Hub 24 An AA vw terminator a ee m ven Connecting Hubs to Network Backbones Connecting the Hub 8U to a ThinLAN Backbone The optional ThinLAN Transceiver Module has a BNC 10Base 2 port that can be used to connect your hub to a ThinLAN backbone Installing the Hub The following illustration shows a hub with an HP ThinLAN Transceiver Module connected to a thinLAN backbone ThinLAN backbone
28. nnected properly collisions may occur because the hub cannot detect the presence of network traffic on that port and may thus transmit at inappropriate times A port may occasionally also become partitioned when network traffic is extremely heavy causing an abnormally high collision rate 99UIIIJIY ANH Hub Reference 3 6 Hub Reference Link Beat Type 10Base T devices use a signal called link beat also called link test pulse This signal informs the hub of the presence of a device connected to it over twisted pair cable and of the integrity of the twisted pair link between them The hub will not transmit packets out of twisted pair ports that do not sense the link beat signal Recommended Cables Twisted Pair Cable Connector Pin Outs m ThinLAN Requirements Cables and Connectors Cables and Connectors A 2 Cables and Connectors This appendix lists cables that have been tested and verified for use with the HP AdvanceStack Hub 8U It also includes minimum pin out information so if you wish to use an unlisted cable you can verify that the cables used in your installation are correctly wired Note that each pin out does not necessarily match the pin out for the corresponding HP cable but cables manufactured to follow the minimum pin out will function correctly Incorrectly wired cabling is the most common cause of problems for LAN communications HP recommends that you work with a qualified LAN cable installer for a
29. oubleshooting procedure 2 8 S Safety information C 2 screws description 1 7 specifications connectors B 2 electrical B 2 electromagnetic B 2 environmental B 2 physical B 2 status LEDs description 3 2 summary installation steps 1 2 T technical support types of 2 11 testing twisted pair cabling 2 8 ThinLAN connections 1 11 ThinLAN port cable requirements A 4 topology faults 2 7 transceiver modules part of hub installation 1 3 troubleshooting approaches 2 2 ASCII console 2 8 cabling problems 2 6 diagnosing with the LEDs 2 3 diagnostic tests 2 8 installation problems 2 6 LED pattern during power on 2 3 LED patterns showing errors 2 4 testing the hub 2 8 testing the twisted pair cables 2 8 topology faults 2 7 unusual network activity 2 7 Index 4 twisted pair cable hub to computer connection A 3 pin assignments A 4 pin outs A 3 testing 2 8 twisted pair ports LED description 3 3 U unusual network activity 2 7 V verifying hub operation 1 5 W wall mounting the hub 1 7 World Wide Web obtaining software from 2 11 WWW obtaining software from 2 11 LA PackaRD 1997 Hewlett Packard Company Printed in U S A 7 97 Manual Part Number J2610 90201 Edition 1
30. qu de ce symbole reportez vous la documentation du produit afin d obtenir des informations plus d taill es WARNING Dans la documentation un WARNING indique un danger susceptible d entra ner des dommages corporels ou la mort CAUTION Un texte de mise en garde intitul CAUTION indique un danger susceptible de causer des dommages l quipement Ne continuez pas au del d une rubrique WARNING ou CAUTION avant d avoir bien compris les conditions pr sentant un danger et pris les mesures appropri es Aucune pi ce contenue l int rieur de ce produit ne peut tre r par e par l utilisateur Tout d pannage r glage entretien ou r paration devra tre confi exclusivement un personnel qualifi Cet appareil ne comporte pas de commutateur principal la mise sous tension est effectu e par branchement du cordon d alimentation Informations concernant la s curit 3 SJU9QULIIBIS A1o en89y pue J9JeS Safety and Regulatory Statements Hinweise zur Sicherheit Sicherheitssymbole Symbol f r Dokumentationsverweis Wenn das Produkt mit diesem Symbol markiert ist schlagen Sie bitte in der Produktdokumentation nach um mehr Informationen ber das Produkt zu erhalten WARNING Eine WARNING in der Dokumentation symbolisiert eine Gefahr die Verletzungen oder sogar Todesfalle verursachen kann CAUTION CAUTION in der Dokumentation symbolisiert eine Gefahr die das Ger t besch digen kann Fahren Sie
31. re described in chapter 1 Installing the Hub Properly connecting cables to the transceiver modules is described in the documentation that accompanies those modules If you are using the optional HP ThinLAN Transceiver Module be certain that the thin coax segment attached to the port is properly terminated with a 50 ohm terminator at both ends as described in the manual accompanying the transceiver module Troubleshooting Non standard Cables Mis wired cables may cause numerous network collisions and can seriously impair network performance Before connecting cables into your network you should verify that they comply with the applicable standards For a list of compatible cables and a description of the pinouts for each port on the hub which can be used to confirm the compatibility of unlisted cables see appendix A Cables and Connectors Topology It is important to make sure you have a valid network topology Common topology faults include excessive cable length and excessive repeater delays between nodes If you have trouble after recent changes to a network switch back to the previous topology If you no longer have any trouble the new topology is probably at fault Refer to the guide entitled Designing HP AdvanceStack Networks for topology configuration guidelines Contact your HP authorized LAN dealer or local HP sales office to get a copy of this guide Unusual Network Activity Network activity that exce
32. s Consideraciones sobre seguridad Simbolos de seguridad Simbolo de referencia a la documentaci n Si el producto va marcado con este s mbolo consultar la documentaci n del producto a fin de obtener mayor informaci n sobre el producto WARNING Una WARNING en la documentaci n se ala un riesgo que podr a resultar en lesiones o la muerte CAUTION Una CAUTION en la documentaci n se ala un riesgo que podr a resultar en aver as al equipo No proseguir despu s de un simbolo de WARNING o CAUTION hasta no haber entendido las condiciones peligrosas y haber tomado las medidas apropiadas Este aparato no contiene pieza alguna susceptible de reparaci n por parte del usuario Todas las reparaciones ajustes o servicio de mantenimiento debe realizarlos solamente el t cnico Este producto no tiene interruptor de potencia se activa cuando se enchufa el cable de alimentaci n 6 Consideraciones sobre seguridad Safety Information RE OER va 707 Monte CORROTTA Ahva MEDEL EESRFT CHA CIS VO WARNING T 2TIRD WARNING HAFZFROHR ER ATEM LE TO CAUTION va 7 VFPM CAUTION HREERROHNERZAGBREMLET WARNING CAUTION DIRE ES EV CHOPBHA Fav ERP ER HEY L a ELVFRKG oRNETKOFRIK A TIR SU RSR D SIL IRL DER TC AAA EtA T EA ME RSS VERIIF EXE Sit Le SPIRE EMDEN A AMIDE AL FORO ELA EMO FELL RRAZ Safety Information 7 SJU9QULIIBIS A1o en89y pue J9JeS Safety and Regulatory Statements Regulatory Statem
33. ssistance with your cabling requirements Recommended Cables Cable Function Cable Type HP Product Number Network connections to the hub Hub to end node Twisted pair straight 92268A 4 pair 4 meters connection or hub to hub through cable 92268B 4 pair 8 meters connection using the 92268C 4 pair 16 meters MDI MDI X switch 92268D 4 pair 32 meters 92268N 4 pair 300 meters You can contact your HP authorized dealer or call HP at 1 800 538 8787 to order these parts Note Cables and Connectors Twisted Pair Cable Connector Pin Outs Twisted Pair Cable for Hub to Computer Network Connection To connect PCs or other network devices to the hub use a straight through 10Base T cable The twisted pair wires must be twisted through the entire length of the cable The wiring sequence must conform to AT amp T 258A not USOC See Twisted Pair Cable Pin Assignments later in this chapter for a listing of the signals used on each pin Straight through cable 12345678 12345678 peo white orange Le orange white white green Ve le A pi risa dl A ri eci fa nen nr letali AP MY Ya green white Pins 1 and 2 must be a twisted pair Pins 3 and 6 must be a twisted pair Pins 4 5 7 and 8 are not used in this application although they may be wired in the cable SI10799UUO PUB So qL Y Cables and Connectors A 4 Cables and Connectors Twisted Pair Cable Pin Assignments Twis
34. t connection The end node or hub attached to the port is off If you have an HP AdvanceStack 8U 16U SNMP Module installed see the module manual If port 1 check the position of the MDI MDI X switch For hub to hub connections set the switch to MDI For hub to PC connections set the switch to MDI X Verify that the HP Transceiver Module is firmly inserted into the AUI Xcvr slot into the back of the hub See the documentation accompanying the HP Transceiver module for more troubleshooting information Check cabling on indicated port If you have an HP AdvanceStack 8U 16U SNMP Module see the HP AdvanceStack 8U 16U SNMP Module manual to troubleshoot this port with the ASCII console LED patterns indicating problems Power AUI Xcvr Twisted Pair Port After self test all ports are ON for an extended period of time This LED is not important for the diagnosis Troubleshooting Diagnostic Tips Very frequent collisions are occurring which could indicate a network fault or improperly terminated cable A transceiver attached to the AUI port may not have the SQE test disabled For information about the SQE test see your documentation accompanying your transceiver module If you have an HP AdvanceStack 8U 16U SNMP Module installed see the manual for the module The port has been auto partitioned because of an excessive collision condition Check cable connections and status of attached network d
35. ted Pair Straight Through Cable Hub End Computer or Transceiver End Signal Pins Pins Signal receive gt gt il transmit receive Je 2 transmit transmit Je receive transmit 6 6 receive ThinLAN Cable Requirements If you add an HP J2608A ThinLAN Transceiver Module the thin coaxial cables used with the module must comply with the IEEE 802 3 Type 10Base2 requirements Some RG 58 A U or RG 58 C U cables meet these requirements The maximum length of a single thin coaxial cable segment is 185 meters The minimum length for example to connect adjacent hubs in a rack is 0 5 meter Physical Electrical Environmental Connectors Electromagnetic Specifications Specifications Specifications Physical Width Depth Electrical ac voltage Maximum current Frequency range Environmental Temperature Relative humidity non condensing Maximum altitude Connectors 21 6 cm 8 5 in Height 4 1 cm 1 6 in 17 0 cm 6 7 in Weight 0 8 kg 1 5 Ib 100 240 volts 0 7 A max 47 63 Hz Operating Non Operating 0 C to 55 C 40 C to 70 C 32 F to 131 F 40 F to 158 F 15 to 95 15 to 90 at 40 C 104 F at 65 C 149 F 4 6 km 15 000 ft 4 6 km 15 000 ft m The RJ 45 twisted pair ports are compatible with the IEEE 802 3 Type 10Base T standard Safety Complies with TEC 950 1991 A1 A2 EN60950 I 1992 A1 A2 UL1950 C
36. thorized dealer HP AdvanceStack Hub SU At A Glance The HP J2610B AdvanceStack Hub 8U is a multiport repeater with eight twisted pair network ports With this hub you can connect computers and other devices together in an unshielded twisted pair cable network This hub is compliant with the IEEE 802 3 Type 10Base T standard and supports both 802 3 and Ethernet networks 111 Front of the Hub AUI Xcvr port twisted pair MDI MDI X switch LED port LEDs for port 1 nn L HEWLETT z FB PACKARD 8 7 6 5 4 3 2 1 10 Base T _ AdvanceStack Hub 8U Pd Ld sion AUI Xcvr III III NO MA Y Power Activity Colli NON Hub status LEDs Twisted pair ports Back of the Hub cover plate over expansion slot for HP AdvanceStack 8U 16U SNMP DC power Module receptacle cover plate over slot for HP AUI and Transceiver Modules Management Slot AUI Xcvr A Slot 10IS jUuowobeueyN iv Features Network Connections Upgradeable Design with Management Options Modular Easy to Use Design Standards Based Compatibility Eight RJ 45 twisted pair ports to connect to end nodes or other devices A Media Dependent Interface MDI switch for Port 1 which allows you to connect either an end node MDI X position or to cascade a hub MDI position to the port using a straight through twisted pair cable in both cases A management slot in the back of the hub enables you to install an optional HP AdvanceStack
37. to 14400 bps and with your telecommunication program e g Windows Terminal dial 208 344 1691 in the U S to get the latest software for your HP networking product For other countries see http www hp com cposupport eschome html p lt over for more services 7 Ste Obtain the latest Module firmware j3133a exe from World Wide Web http www hp com go network_city HP FTP Library ftp ftp hp com Service HP BBS 208 344 1691 over HP FIRST Fax Retrieval Service HP FIRST is an automated fax retrieval service that is available 24 hours a day seven days a week HP FIRST provides information on the following topics m Product information Troubleshooting instructions Technical reviews and articles Configuration information To access HP FIRST dial one of the following phone numbers Location Phone Number U S and Canada Only Dial 1 800 333 1917 with your fax machine or touch tone phone and press 1 Outside the U S and Canada Dial 1 208 344 4809 from your fax machine and press 9 To receive a list of currently available documents enter document number 19941 The information you requested will be sent to you by return fax For other countries see http www hp com cposupport eschome html Additional HP Support Services In addition to the above services you can purchase various HP telephone support services which provide you expert HP technical assistance m Network Phone In Support provides yo
38. u 2 8 28 amp wa aa MELA ne Collision Detection Auto Partitioning Link Beat a Lou 245846454285 43 4 4664464 died Cables and Connectors Recommended Cables Twisted Pair Cable Connector Pin Outs Twisted Pair Cable for Hub to Computer Network Connection Twisted Pair Cable Pin Assignments Twisted Pair Straight Through Cable ThinLAN Cable Requirements Specifications Safety and Regulatory Statements Index Installation Summary 1 Install Add in Modules optional 2 Verify the Hub s Operation 5 Mount the Hub 4 Complete the Network Connections to the Hub 5 Connect the Hub to an ASCII Console optional Installing the Hub Installing the Hub 1 2 Installing the Hub This chapter describes how to install the HP AdvanceStack Hub 8U verify its operation and connect it to a network other hubs computers and or other devices Installation Summary The basic hardware installation procedure for the HP AdvanceStack Hub 8U is as follows 1 Install the optional HP AdvanceStack 8U 16U SNMP Module and or one of the optional HP Transceiver Modules 2 Verify the hub s operation 3 Mount the hub on a wall or under a tabletop 4 Connect the hub to a network or other hubs and connect computer s and or other device s to the hub s ports 5 Optional Connect the hub to the Adv
39. u support at an hourly rate In the U S call 1 800 790 5544 In other countries please contact your local HP Response Center to see if this service is available in your country HP SupportPack LAN Support provides problem resolution for small to medium local area networks Contact your HP Authorized Reseller or the nearest HP Sales and Support Office for more information m HP SupportPack Comprehensive Network Support provides complete prob lem resolution for medium to large interconnected local and wide area networks Contact your HP Authorized Reseller or the nearest HP Sales and Support Office for more information HP offers other hardware support services Please contact your reseller for more information CompuServe Go hpsys Lib 7 Download j3133a exe Network Phone In 1 800 790 5544 Support hourly Table of Contents Installing the Hub Installation Summary 1 2 Meluded Larissa 22 ou are ee 1 2 1 Install add in modules optional 1 3 2 Verify the hub s operation 1 5 9 MOUNE SUD 2 sitio co den i 1 6 Equipment Required 1 6 Mounting Precautions 1 7 Marking the Location 1 7 Mounting the Hub sus p pie ian e we aki nn 1 8 4 Complete the network connections to the hub 1 9 Connecting Devicestothe Hub 1 9 Connecting Hubs Together 1 10
40. u to install the hub in a variety of ways including on a desk under a desk or on a wall Compatible with the IEEE 802 3 Type 10Base T standard to support both 802 3 and Ethernet networks HP Customer Support Services How to get the latest software agent firmware You can download from the World Wide Web HP FTP Library Service CompuServe and HP BBS a compressed file 3133a exe containing the latest version of the HP Management Module firmware After you download the file extract the file by typing filename and pressing Enter For example 3133a Enter World Wide Web http www hp com go network_city Select the Support section From this web site you can also download information on the HP networking products If you have a growing network download the Designing HP AdvanceStack Networks Guide or call 1 800 752 0900 in the U S to receive a copy through the mail HP FTP Library Service 1 FTP to Internet IP Address ftp ftp hp com 2 Log in as anonymous and press at the password prompt 3 Enter bin to set the transfer type 4 Enter cd pub networking software 5 Enter get filename to transfer the file to your computer then quit CompuServe 1 Login to CompuServe 2 Go to the hp service 3 Select HP Systems Disks Tapes etc 4 Select Networking Products library 5 Download filename and then quit HP BBS Set your modem to no parity eight bits 1 stop bit set speed up
41. ug the ac power cord provided with your hub into an ac power source Power receptacle on the back of the power supply hub E o quH y Surreysu Installing the Hub Installing the Hub 5 Check the LEDs on the hub s front panel When the hub is powered on it performs a self diagnostic test During the test all LEDs are lit for a short time When the self test completes successfully the following events occur e the Power LED stays on e the twisted pair Port LEDs enter their normal operating state e Ifan HP Transceiver module is installed the AUI Xcvr LED stays lit A Port LED stays on if link beat has been detected at the port A Port LED turns off if link beat is not detected If you have an optional HP AdvanceStack 8U 16U SNMP Module installed the Port LEDs have additional meanings See the documentation accompanying the module for more information If all of the Port LEDs stay on and you have not connected end nodes to these ports the hub has failed its self test See chapter 2 Troubleshooting for information about diagnosing your hub 4 After the hub has passed its self test you are ready to mount the hub Before mounting the hub unplug it 5 Mount the hub The HP AdvanceStack Hub 8U can be placed on a desk or mounted on any vertical or horizontal surface for example a wall or under a desk To locate the hub on a table or other horizontal surface no spe
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