GarrettCom MAGNUM H80P User's Manual
Contents
1. 15 Magnum H80B and H80P Personal Hubs User Guide 07 95 stability if desired When properly installed the top view LED status indicators will be in plain view and easy to read Plug in two or more Ethernet cable segments and your network is in operation The rugged steel case of the Personal Hub will protect it from accidental damage in an office or lab workplace setting Keep an open area around the unit so that convection cooling can occur while the unit is in operation 3 4 Wall or Vertical Surface Mounting A piece of Velcro mounting tape is supplied with the unit and may be used to mount a Personal Hub in a vertical position Stick one side of the Velcro on the bottom of the hub between the rubber feet Stick the other side of the Velcro to the desired vertical mounting location This permits the compact Personal Hub to be mounted on a wall surface on the side of a server unit cabinet on the back of a desk or in other similar convenient locations in the workplace where the associated cables are out of the way As an alternative to Velcro for vertical surface mounting small brackets for mounting with screws may be used These items are included in the package The metal screws in each side of the Personal Hub s case may be used to attach the brackets Use of the optional brackets permits the Personal Hub to be mounted in almost any desired orientation or position 16 Magnum H80B and H80P Personal Hubs User Guide 072. 0 SPECIFICATIONS rer a n aE AEN aa 1 1 1 Technical Specifications s essseeeseeseeseeeeeresrersrsrrererereree 1 2 Ordering Informationen neend eai ZOINTRODUCTION merrier n a a i ante cdse 2 1 Inspecting the Package and Product eceeceeseeseeseeeeeeee 2 2 Product Description cccceceseeseeseeeeeteeeeees 2 2 1 Magnum H80B Product Description 2 2 2 Magnum H80P Product Description ia 2 3 Features and Benefits s sseeeeeseseseersesreeesesrsterrrerererrrrreeeee ZAApplication Si iioii ai EON A eae 3 0 TNSTATLATION r a a a aas 3 1 Magnum H80B Installation eee eee eeeeseereeseeseeeees 3 2 Magnum H80P Installation 0 eee eee eeeeseeseeeeseeeees 3 3 Table Top or Shelf Mounting 000 cece eeeeeseeseeseeeeeees 3 4 Wall or Vertical Surface Mounting 3 5 Ethernet Media Connections 0 0 ec ececeeeseeeeeneeseeeeeeeeees 3 5 1 Twisted Pair Segment Connections cee 3 5 2 AUI Connections Model H80P only 06 18 3 5 3 ThinNet 1 OBASE2 BNC Connections 19 3 6 Switchable Up Link Feature cece eeseeeseesetseeseeeees 20 3 7 Cascading Personal Hubs with the Up Link Port 21 AO OPERATION vices ss sdeniicisesessns sees e E eea IERS se 22 4 1 Functional Operation Use of LED Indicators 0 22 5 0 TROUBLESHOOTING eee ceeceeeeeeteeeeenees wine 24 5 1 Before Calling for Assistance 24 5 2 When Calling for Assistance oo ccc eeeeesesee
3. 95 3 5 Ethernet Media Connections Magnum H80Bs and H80P are equipped with eight sheilded twisted pair ports and a BNC or DTE male AUI port The following sections give instructions for installing each of these media types 3 5 1 Twisted Pair Connections 1 Using standard 10BASE T media insert the male plug on one end of the network cable into one of the RJ 45 female ports on the Personal Hub Even though the hub s plugs are of the shielded type they will accept and operate properly with both shielded and unshielded type RJ 45 twisted pair wiring 2 Connect the other end of each network segment to the applicable workstation or user device The LINK LED will be lit for each port when the connection is made on both ends of the segment and when the DC power is present at each end as well i e when the segment circuit is established and is ready to use 3 For the switched port up link option see Section 3 6 17 Magnum H80B and H80P Personal Hubs User Guide 07 95 3 5 2 AUI Connections Model H80P only The Magnum H80P is equipped with a rear DTE male AUTI port which serves a dual purpose of supplying power to the unit and providing backbone connectivity NOTE Since the H80P derives its power from this port this connection must be completed before the unit will function unless an optional external power supply is being used Before connecting the DTE port of the Magnum H80P note that
4. position With the up link switch off position the LINK LED is off as the up link is disabled This permits local operation of the Personal Hub with full bandwidth Receive Packets RX LED per port Illuminates GREEN intermittently to indicate that data is being received from the segment This provides a visual indication of network activity for re assurance of normal operation and is helpful in troubleshooting Partitioning and Re connection Personal Hubs will automatically partition any port where 32 consecutive collisions occur or after 6 5 ms of continuous transmissions Network integrity is checked every 800 ms and segment re connection occurs after one 512 bit packet is transmitted without an error 22 Magnum H80B and H80P Personal Hubs User Guide 07 95 Preamble Regeneration Personal Hubs add bits to the preamble so that the output packet contains a minimum 64 bit preamble per the Ethernet standard Collisions When carrier is detected simultaneously on multiple ports a jam pattern is generated on each port to create a collision condition When a collision signal from one port is detected it generates a jam pattern to other ports Fragment Extension Personal Hubs will automatically add bits to a received data packet of less than 96 bits a fragment so that the forwarded packet is 96 bits long 23 Magnum H80B and H80P Personal Hubs User Guide 07 95 5 0 TROUBLESHOOTING All Magnum Ethernet pr
5. via ThinNet while the RJ 45 ports support up to eight user devices connected via twisted pair Full length Ethernet segments are supported on all segments In this application the Up Link switch is in the straight through or position so that the switchable up link port is a user port not an up link to another hub 13 Magnum H80B and H80P Personal Hubs User Guide 07 95 3 0 Installation This section describes the installation of Magnum H80B and H80P Personal Hubs including mounting options and cable connections 3 1 Magnum H80B Installation The installation of a Magnum H80B Personal Hub is a very simple procedure Locate an AC receptacle that is within six feet 2 meters of the intended hub location and plug in the external power supply unit provided as part of the unit The small DC power cord from the power supply plugs into the matching rear power jack of the Personal Hub and when power is applied the green PWR LED will be illuminated The external power supply unit supplied is one of two types one version for AC input power of 115 vac 60 Hz and one version for 230 vac 50 Hz Examine the power supply to make sure the version you have is the right type for your AC power system The 115 vac version has a small transformer integral with a convenience power outlet plug and a lightweight DC power cord to the applicable power jack on the hub The 230 vac version has a small transformer integral with an IEC type powe
6. BASE2 backbone connectivity if required The H80B s small size makes it very useful for demonstration situations in conference rooms and in exhibitions where a temporary network or network expansion is needed It is handy as a piece of test equipment that can be easily inserted into a network to provide a test port and then removed after the testing is done The H80B Personal Hub takes up minimal space uses minimal power and is rugged enough to be carried in a coat pocket for possible emergencies The external power supply unit supplied with the H80B is one of two types one version for AC input power of 115 vac 60 Hz and one version for 230 vac 50 Hz The 115 vac version has a small transformer integral with a convenience power outlet plug The 230 vac version has a small transformer integral with an IEC type power plug for a user supplied AC power cord with a convenience power outlet plug Both types include a lightweight DC power cord for connection to the Personal Hub s power jack Magnum H80B and H80P Personal Hubs User Guide 07 95 2 2 2 Magnum H80P Product Description Magnum H80P Personal Hubs provide a simple and inexpensive solution for expanding a single AUI port into an eight port hub Since the H80P receives power through its DTE male AUTI port it may be installed in virtually any location without worrying about access to a power outlet To the server router or other device to which it is connected the Magnum H80P
7. Corporate Headquarters Garrett Communications 213 Hammond Avenue Fremont CA 94539 Phone 510 438 9071 Fax 510 438 9072 Email support garrettcom com Magnum Personal Hubs Models H80B and H80P Installation and User Guide Magnum H80B and H80P Personal Hubs User Guide 07 95 Magnum Personal Hub Models H80B and H80P Installation and User Guide Part 84 00037 07 95 Trademarks UL is a registered trademark of Underwriters Laboratories Ethernet is a trademark of Xerox Corporation Velcro is a trademark of Velcro U S A Personal Hub and Magnum are trademarks of Garrett Communications Inc Important Magnum Personal Hubs contain no user serviceable parts Attempted service by unauthorized personnel shall render any and all warranties null and void If problems are experienced with a Magnum Personal Hub consult Section 5 Troubleshooting of this User Guide Contacting Garrett Communications Please use the mailing address phone and fax numbers and email address listed below Garrett Communications 213 Hammond Avenue Fremont CA 94539 Phone 510 438 9071 Fax 510 438 9072 Email support garrettcom com 1995 Garrett Communications Inc All rights reserved No part of this publication may be reproduced without prior written permission from Garrett Communications Inc Printed in the United States of America ii Magnum H80B and H80P Personal Hubs User Guide 07 95 TABLE OF CONTENTS Page 1
8. appears as a standard transceiver The rear DTE port of the unit allows for direct drop cable connection to any AUI port As an option the H80P may be powered by an external power suppy see Spare Part Ordering information Section 1 3 When used for redundancy the external supply retains local connectivity in the event of a power outage on the AUI segment In addition the external power supply allows the H80P to function as a standalone unit NOTE Since the Magnum H80P receives its power from the rear DTE port this port must be connected to the AUI port of another Ethernet device to allow the H80P to operate unless the opitonal external power supply is used Magnum H80B and H80P Personal Hubs User Guide 07 95 The H80P s small size makes it very useful for situations where a temporary twisted pair network is needed and only AUI ports are available It is handy as a piece of test equipment that can be easily inserted into an AUI backbone to provide a test port and then removed after the testing is done The H80P Personal Hub takes up minimal space uses minimal power and is rugged enough to be carried in a coat pocket for possible emergencies Magnum H80B and H80P Personal Hubs User Guide 07 95 2 3 a Features and Benefits Interconnect to an Existing Ethernet Network Personal Hubs provide a manual Up Link switch that allows one RJ 45 port to be to connect into an existing Ethernet environment such as the central h
9. blem is isolated to a network device other than the Magnum Personal Hub it is recommended that the problem device be replaced with a known good device Verify whether or not the problem is corrected If not go to Step 5 below If the problem is corrected the Personal Hub and its associated cables are functioning properly J If the problem continues after completing Step 4 above contact your supplier of the Personal Hub unit or if unknown contact Garrett Communications by fax phone or email for assistance 24 Magnum H80B and H80P Personal Hubs User Guide 07 95 5 2 When Calling for Assistance Please be prepared to provide the following information 1 A complete description of the problem including the following points a The nature and duration of the problem b Situations when the problem occurs c The components involved in the problem d Any particular application that when used appears to create the problem 2 An accurate list of Garrett Communications product model s involved with serial number s Include the date s that you purchased the products from your supplier 3 It is useful to include other network equipment models and related hardware including personal computers workstations terminals and printers plus the various network media types being used 4 A record of changes that have been made to your network configuration prior to the occurrence of the problem Any changes to system administratio
10. bs User Guide 07 95 Consistent with IEEE 802 3 specifications Personal Hubs will detect collisions extend collision fragments and automatically partition and re connect individual ports in order to keep problems on one segment from causing downtime elsewhere on the network Personal Hubs include LINK and RX LEDs located on top of the unit above each RJ 45 port and one LED for DC power located at the rear near the external power supply connection For observing operational information from the LEDs it is easy to associate the status LEDs for each of the ports with the appropriate port plug 2 2 1 Magnum H80B Product Description Magnum H80B Personal Hubs provide a simple and inexpensive solution for networking a personal multi system office using 1OBASE T twisted pair cabling They are perfect for sites that have ThinNet installed and need to wire additional office space for twisted pair Magnum H80Bs are also well suited for small to medium size office or lab environments up to eight persons that need an independent Ethernet network They operate as self sufficient units Magnum H80B and H80P Personal Hubs User Guide 07 95 to provide ThinNet and 1OBASE T Ethernet connectivity for local users and devices Small independent networks built using Personal Hubs are easily expanded by adding hubs of equal or greater capacity via cascaded connections using the Up Link switched port feature The BNC port of the H80B provides 1O
11. ds Ethernet V1 0 2 0 IEEE 802 3 1OBASE T 1OBASES Magnum Personal Hubs are physical layer standard Ethernet products and operate in networks independently of all software Operating Environment Ambient Temperature 32 F to 122 F 0 C to 50 C Storage Temperature 20 C to 60 C Ambient Relative Humidity 10 to 95 non condensing Power Supply External H80B optional for H80P Power Input 95 125 vac at 60 Hz for d Models 200 250 vac at 50 Hz for i Models which have IEC power cable connector in the external power unit Power Consumption 10 watts max Connectors H80B 8 front mounted shielded RJ 45 1 with up link switch 1 rear BNC with internal termination switch H80P 8 front mounted shielded RJ 45 1 rear DTE male AUI Shielded 1OBASE T connectors accept either unshielded or shielded wiring lugs for standard twisted pair media wiring The regular RJ 45 ports support the standard for hubs to users twisted pair wiring pin l receive 2 receive 3 transmit 6 transmit other pins not used The RJ 45 port with the MDI X switch is normally the same but when switched it supports the standard for up links using twisted pair wiring i e the transmit and the receive pairs are exchanged pin 1 transmit 2 transmit 3 receive 6 receive other pins not used Magnum H80B and H80P Personal Hubs User Guide 07 95 Switches Up Link MDI X Media Dependent Interface Crossover ma
12. eneeseteeseeeees 25 5 3 Return Material Authorization RMA Procedure 25 5 4 Shipping and Packaging Information eee eee 26 APPENDIX A WARRANTY INFORMATION c cscsseseeeee 27 Federal Communications Commission Radio Frequency Interference Statement This equipment generates uses and can radiate frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio communication It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection 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 iii MAGNUM ETHERNET CONNECTIVITY PRODUCTS DESIG NED AND MANUFACTURED IN THE USA Overview Garrett Communications offers the Magnum line of Ethernet LAN physical layer connectivity products with industry standard functionality Magnum products are available worldwide through OEMs integrators representatives and international distributors Stackable Hubs SNMP Optional 24 Port 1OBASE T Hub 12 Port 1 OBASE T Hubs Local Bridge with SNMP Local Bridge full featu
13. formation Should you need to ship the unit back to Garrett Communications please follow these instructions 1 Package the unit carefully It is recommended that you use the original container if available Units should be wrapped in a bubble wrap plastic sheet or bag for shipping protection You may retain all connectors and this Installation Guide CAUTION Do not pack the unit in Styrofoam popcorn type packing material This material may cause electro static shock damage to the unit 2 Clearly mark the Return Material Authorization RMA number on the outside of the shipping container 3 Garrett Communications is not responsible for your return shipping charges 4 Ship the package to Garrett Communications 213 Hammond Avenue Fremont CA 94539 Attn Customer Service 26 Magnum H80B and H80P Personal Hubs User Guide 07 95 APPENDIX A Warranty Information Garrett Communications warrants its products to be free from defects in materials and workmanship for a period of three 3 years from the date of shipment by Garrett Communications During this warranty period Garrett Communications will repair or at its option replace components in the products that prove to be defective at no charge other than shipping and handling provided that the product is returned pre paid to Garrett Communications This warranty will not be effective if in the opinion of Garrett Communications the product has been damaged by
14. k switch plus one rear DTE maleAUJ port Magnum Personal Hubs Spare Parts MODEL DESCRIPTION H80 d ps External 115 vac 60 Hz power supply H80 i ps External 230 vac 50 Hz power supply Garrett Communications reserves the right to change specifications performancecharacteristics and or model offerings without notice Magnum H80B and H80P Personal Hubs User Guide 07 95 2 0 INTRODUCTION This section describes the Magnum H80B and H80P Personal Hubs including appearance features and possible applications 2 1 Inspecting the Package and Product Examine the shipping container for obvious damage prior to installing this product notify the carrier of any damage which you believe occurred during shipment or delivery Inspect the contents of this package for any signs of damage and ensure that the items listed below are included This package should contain 1 Magnum H80B or H80P Personal Hub 1 External Power Supply either 115v 60 Hz or 230v 50 Hz H80B only 1 Velcro Tape section approximately 3 inches in length 1 User Guide 1 Product Registration Card Remove the Magnum Personal Hub from the shipping container Be sure to keep the shipping container should you need to ship the unit at a later date To validate the product warranty please complete and return the enclosed Product Registration Card to Garrett Communications as soon as possible In the event there are items missing or damaged contact your s
15. misuse misapplication or as a result of service or modification other than by Garrett Communications Garrett Communications reserves the right to make a charge for handling and inspecting any product returned for warranty repair which turns out not to be faulty Please complete the warranty card as this acts as a product registration and mail it to Garrett Communications within two weeks of your purchase 27
16. n procedures should all be noted in this record 5 3 Return Material Authorization RMA Procedure All returns for repair must be accompanied by a Return Material Authorization RMA number To obtain an RMA number contact Garrett Communications Customer Support at 510 438 9071 office hours 8AM 5PM Pacific Standard Time or send email to support garrettcom com Please have the following information available when calling Name and phone number of your contact person Name of your company institution Your shipping address Product name Serial Number or Invoice Number Packing List Number or Sales Order Number Date of installation Failure symptoms including a full description of the problem 25 Magnum H80B and H80P Personal Hubs User Guide 07 95 Garrett Communications will carefully test and evaluate all returned products will repair products that are under warranty at no charge and will return the warranty repaired units to the sender with shipping charges prepaid see Warranty Information Appendix A for complete details However if the problem or condition causing the return cannot be duplicated by Garrett Communications the unit will be returned as No Problem Found Garrett Communications reserves the right to charge for the testing of non defective units under warranty Testing and repair of product that is not under warranty will result in a customer user charge 5 4 Shipping and Packaging In
17. nt with rigid Class CE emission standards making them suitable for commercial and home offices 10 Magnum H80B and H80P Personal Hubs User Guide 07 95 2 4 Applications Magnum H80P and H80B Personal Hubs make expansion from one to multiple ports at an existing site easy and do not require modification to typical building wiring Installation of the AUI powered H80P is a simple matter of connecting the rear DTE port to a standard AUI port normally with an AUI drop cable instantly creating eight twisted pair user ports from a single AUI port 11 Magnum H80B and H80P Personal Hubs User Guide 07 95 The Magnum H80B offers a simple means of creating a small workgroup network from a single BNC port The installer simply connects the existing BNC tap to the BNC port of the H80B with a standard ThinNet 1OBASE2 segment By using the internal termination of the H80B no tee conector is required unless the segment must extend beyond the H80B unit Then power is connected by plugging the external power supply unit into an AC power receptacle and plugging the DC power plug into the jack on the back of the Personal Hub In minutes eight twisted pair ports are available for other networked devices 12 Magnum H80B and H80P Personal Hubs User Guide 07 95 The H80B Personal Hub may also be used as a stand alone network for a local multi user system such as shown in the figure The BNC port is used to support devices connected
18. nual slide switch converts RJ 45 port 8 from a regular user segment port to a crossover X up link port for on off connection to a backbone or another cascaded hub Internal Termination H80B only Allows BNC conneciton without use of T connector Right position internal termination no T required Left position external termination via T connector required Packaging Enclosure Rugged high strength steel enclosure Suitable for vertical or horizontal mounting supplied with metal mounting clips screws and a Velcro strip Recessed LEDs to avoid damage Dimensions H80B H80P 4 4in x 5 0in x 0 75in 11 2cm x 12 7cm x 1 9cm Weight H80B and H80P 1 0 Ibs 455 gr Power Supply 1 0 Ibs 455 gr Cooling method Convection Agency Approvals 115v 60 Hz Power Supply is UL Listed CSA certified 230v 50 Hz Power Supply is same also GS approved Emissions Meets FCC Part 15 Class A Warranty Three years see also Appendix A Made in USA Magnum H80B and H80P Personal Hubs User Guide 07 95 1 2 Ordering Information Magnum Personal Hubs MODEL DESCRIPTION Magnum H80B d_ Personal Hub with eight standard RJ 45 ports one with up link switch plus one BNC port with internal termination switch external 115 vac 60 Hz power supply Magnum H80A i Same as H80B d but with external 230 vac 50 Hz power supply Magnum H80P AUI powered Personal Hub with eight standard RJ 45 ports one with up lin
19. oducts are designed to provide reliability and consistently high performance in all network environments The installation of Personal Hubs is a simple procedure see Section 3 0 INSTALLATION operation is very simple and is described in Section 4 0 OPERATION Should problems develop during installation or operation this section should help to locate identify and correct such problems Please follow the suggestions listed below prior to contacting your supplier However if you are unsure of any procedure described in this section or if the Magnum Personal Hub is not operating as expected do not attempt to repair or alter the unit Contact your supplier or if unknown contact Garrett Communications for assistance 5 1 Before Calling for Assistance 1 If difficulty is encountered when installing or operating the Personal Hub refer back to Section 3 0 Installation and Section 4 0 Operation Check to make sure that the various other components of the network are operable 2 Check the cables and connectors to ensure that they are of the RJ 45 type not RJ 11 telephone type have been properly connected and the cables wires have not been crimped or in some way impaired during installation 3 Make sure that the DC power cord is properly attached to the unit and that the external power supply unit is plugged into a functioning electrical outlet Use the PWR LEDs to verify the unit is receiving proper power 4 If the pro
20. r hub Since each Personal Hub provides full repeater functionality cascaded units can operate together even though there may be a full segment of distance between them Based on the four repeater rule defined by Ethernet standards there may normally be a maximum of four units in any one chain between any two users Magnum Personal Hubs may also be cascaded in networks with other Magnum Hubs such as Magnum Workgroup Hubs and Magnum 3000 Stackable Hubs and Concentrators as well as with Ethernet hubs from other manufacturers 21 Magnum H80B and H80P Personal Hubs User Guide 07 95 4 0 OPERATION This section details the various operational features of Magnum Personal Hubs including a description of the LED indicators All Personal Hubs are fully compliant with the Ethernet Version 2 IEEE 802 3 Repeater Specification for CSMA CD 10 Mbps operation and will function accordingly 4 1 Functional Operation Use of LED Indicators Power On PWR LED Illuminates GREEN to show functional DC power Link Status LINK LED per port Illuminates GREEN when there is proper connectivity on the port s 1OBASE T network segment Each LINK LED will turn off independently in the event that connectivity is lost between the ends of that segment or a loss of power occurs in the segment at either end Note When the switchable port is wired for up link to another hub the LINK LED will normally be on when the up link switch is set to the X
21. r plug for a user supplied AC power cord with a convenience power outlet plug It also includes a lightweight DC power cord to the applicable power jack on the Personal Hub unit 14 Magnum H80B and H80P Personal Hubs User Guide 07 95 3 2 Magnum H80P Installation Installation of the Magnum H80P Personal Hub is a simple procedure Since the unit receives power from its rear DTE port it can be located virtually anywhere The H80P is typically connected to another Ethernet device through an AUI drop cable For AUI connection instructions refer to Section 3 5 2 It is also possible to connect an external power supply refer to Spare Part Ordering Information Section 1 3 for model names This is useful in cases where a redundant supply is desired or the topology of the network has changed and the DTE port is no longer being used When using an external power supply the unit will still receive its power from the AUI connection as long as the port is connected and supplying suitable power Should a power outage occur on the AUI segment the external power supply will continue to supply power maintaining connectivity amongst local users Refer to Section 3 1 for external power supply connection instructions 3 3 Table Top or Shelf Mounting Personal Hubs are easily mounted on a table top or shelf and have four rubber feet to provide stability without scratching finished surfaces A piece of Velcro may be used to add additional
22. red self learning The X line of configurable MiXed Media products Stackable Concentrators SNMP optional 13 ports Mini Concentrators 7 ports Workgroup Bridges all media types Two Port Repeaters internal power supply all media types Two Port Repeaters external power supply all media types Repeater Port Modules RPMs 6 types for all Ethernet media Bridge Port Modules BPMs 4 types for segment isolation Workgroup Hubs the ten series 8 port AUI or Port Module option 16 port AUI and Port Module slot 24 port AUI and Port Module slot Personal Hubs 9 port and 5 port Personal Hubs with manual up link switch 8 port and 4 port AUI Personal Hubs w man up link sw 8 port BNC Personal Hub w manual up link switch Stackable 8 port AUI and BNC or Fiber w up link switch Media Converters Two RJ 45 Models with BNC or Fiber Fan Outs 4 and 8 Port Deluxe 2 and 4 Port Standard Models Transceivers Coax and Mini Transceivers All Types July 95 Magnum H80B and H80P Personal Hubs User Guide 07 95 1 0 SPECIFICATIONS 1 1 Technical Specifications Performance Data Rate 10 Mbps Partitioning Enforced after 32 consecutive collisions Reconnect Occurs after 512 bits error free transmission Maximum Ethernet Segment Lengths 10BASE T Unshielded twisted pair 100 m 328 ft 10BASE T Shielded twisted pair 150 m 492 ft AUI Drop Cable 50m 164 ft 10BASE2 ThinNet BNC 185 m 607 ft Network Standar
23. the H80B is specially equipped with an internal termination switch next to the BNC connector This eliminates the need to use a tee connector when the BNC cable ends at the connection to the H80B Some applications may require a tee connector used as a tap to allow the 1OBASE2 coax segment to continue on past the H80B unit Internal Termination Switch Settings Right Internal termination no T connector required Left External T required 19 Magnum H80B and H80P Personal Hubs User Guide 07 95 3 6 Switchable Up Link Feature Each H80B and H80P Personal Hub is equipped with one MDI X Up Link crossover switch connected to the right most front RJ 45 port port 8 This switch is used to select either a normal 10BASE T connection to a user device switch in the position or a 1OBASE T network up link connection to another hub or concentrator switch in the X position A special crossover cable for up links is not needed with Personal Hubs because of this built in up link switch feature When the switchable port is wired for up link but the switch is set to the position the up link segment is inoperative and full bandwidth is available locally 20 Magnum H80B and H80P Personal Hubs User Guide 07 95 3 7 Cascading Personal Hubs with the Up Link Port Personal Hubs may be cascaded in order to expand networks For example any Personal Hub may be cascaded via the switchable up link port into any port of anothe
24. the maximum cable length of an AUI drop cable is 50m 165 ft IEEE signals summarized in Table 3 5 2 in CONIDNRWNeE NOTES The Magnum H80P DTE connector supports standard Table 3 5 2 DTE Pin Assignments Function Pin Control In Circuit Shield 10 Control In Circuit A 11 Data Out Circuit A 12 Data In Circuit Shield 13 Data In Circuit A 14 Voltage Common 15 Function Data Out Circuit B Data Out Circuit Shield Data In Circuit B Voltage Plus Voltage Shield Control Out Circuit B Control Out Circuit A SHELL Protective Ground Control Out Circuit Shield conductive shell Control In Circuit B 1 Voltage Plus pin 13 and Voltage Common pin 6 use a single twisted pair in the AUI cable 2 Pins 4 8 11 and 14 may be connected to pin 1 18 Magnum H80B and H80P Personal Hubs User Guide 07 95 Using the above information and steps below as a guide attach the 1OBASES drop cable directly to the DTE connector on the rear of the H80P 1 Plug the female end of the cable into the male DTE connector on the H80P 2 Engage the AUI connector slide lock on the cable to insure maximum connectivity 3 Connect the opposite end of the cable into a network AUI port and engage the port s slide locks 3 5 3 ThinNet 10BASE2 BNC Connections H80B only Connect the ThinNet coax cable to the BNC connector on the Magnum H80B in the same manner as is done for any standard BNC connection The BNC port of
25. ub for the building or area via L OBASE T wiring Inter operable with other Ethernet Devices Personal Hubs are completely inter operable with other Ethernet compliant network devices Each is fully compliant with IEEE 802 3 specifications for 10 Mbps CSMA CD operation This allows Personal Hubs to be integrated within any standard Ethernet network and to operate with standard software Installation Versatility Personal Hubs are simple and easy to install in most any office or lab location The tiny package is very unobtrusive and is typically mounted with Velcro Robust Network Operations Personal Hubs use the star network topology and have automatic per port partitioning and re connection A fault on one segment is isolated from the rest of the network avoiding most network downtime LEDs Simplify Network Installation and Maintenance Personal Hubs are equipped with a full complement of LEDs to provide status about basic network activity LINK LEDs for each port offer a simple way for operational connections of each 1OBASE T segment to be verified Low cost stand alone 10BASE T connectivity Operating in a stand alone environment as a self sufficient device Personal Hubs offer a very low cost method of providing small workgroups access to a variety of Ethernet networking services such as file sharing E Mail printer sharing and other computer information High Quality Personal Hubs have a rugged steel case and are complia
26. upplier If you need to return the unit try to use the original shipping container Refer to Section 5 Troubleshooting for specific return procedures Magnum H80B and H80P Personal Hubs User Guide 07 95 2 2 Product Description The Magnum H80B and H80P Personal Hubs are nine port workplace hubs in a very compact package They are simple to install and use in an office or lab environment requiring no special rack cabinets or wiring closet apparatus Personal Hubs are standard physical layer Ethernet products and operate independently of all software Personal Hubs fit easily into the workplace environment They are versatile enough to be table top or shelf mounted Alternatively a Velcro strip is included in the package so that the unit may easily be installed on a wall surface or on the back or side of a desk or cabinet All of the wiring connectors are in the same plane so that wiring space is neat and minimal The external power supply unit optional for the H80P conveniently plugs into an AC wall receptacle or power strip The H80B and H80P Personal Hubs RJ 45 ports support connection of up eight workstations or other network devices over full length 1OBASE T cable segments Personal Hubs operate in compliance with the IEEE 802 3 specification for repeater functionality to perform signal amplification re timing of data packets and regeneration of preamble bits for each packet received Magnum H80B and H80P Personal Hu
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