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Chapter 3

3-6

Common Network Configurations

Single-Hub Star Network

The simplest AsantéHub network consists of a single hub with attached devices
(nodes).  This configuration yields thirteen device ports, using the rear panel RJ-
45 IN port in addition to the twelve front-panel device ports.  Only twisted-pair
wiring is used.

Figure 3-2.  Star Network

Tree Network

A tree network, or hierarchy of multiple stars, is created when hubs are
interconnected from the front panel ports of the central hub, to the rear panel RJ-
45 OUT port of each associated hub, using twisted-pair wiring.

Some advantages of a tree topology are:

•

Cost savings; unshielded twisted-pair wire is less expensive
than other wire types

•

Uniform wiring; Device and network connections are made
using the same type of wire

•

Easy troubleshooting. Jabber error (continuous transmission)
on a hub can be easily identified.

Содержание AsanteBridge 1012

Страница 1: ...A s a n t é H u b 1 0 1 2 I n s t a l l a t i o n G u i d e ...

Страница 2: ...gies Inc All rights reserved Printed in the United States of America T r a d e m a r k s Asanté Technologies MacCon AsantéHub 1012 AsantéView and 10T MAU are trademarks of Asanté Technologies Inc Apple AppleTalk EtherTalk TokenTalk AppleShare and Macintosh are registered trademarks of Apple Computer Inc Ethernet is a registered trademark of the Xerox Corporation Inc UNIX is a registered trademark ...

Страница 3: ...Panel Convenience in Connections 1 6 Use of the 3 In 1 Uplink 1 8 Hub ID 1 8 Default Settings 1 8 Installation 1 11 Checklist for Installation 1 11 If You Are Connecting AsantéHub to Earlier Products 1 12 Tools 1 12 Overview 1 12 Step 1 Unpacking the AsantéHub 1 14 Step 2 Locating the Hub 1 14 Step 3 Power Up and Pre Test 1 16 Power Up 1 16 Step 4 Pre Test Host Connections 1 18 Step 5 Completing t...

Страница 4: ...al Terminal Emulator to the Hub 2 14 Cabling the NMS Network Management station or a Modem to the Hub out of Band 2 14 Cabling the Network Management Station NMS to the Hub In Band 2 16 Cabling the AMS Link Out of Band Network Management Link 2 17 Cabling Hubs for In Band Network Management 2 17 Chapter 3 3 1 About 10BaseT 3 1 How 10BaseT Uses Existing Telephone Wiring 3 2 Pre Installation 3 2 Ass...

Страница 5: ...orkstation Problems and Solutions 4 4 Hub Problems and Solutions 4 5 Traffic Patterns 4 5 Network Troubleshooting Software 4 6 Interpreting Events in the Hub 4 6 Collision 4 6 Appendix A A 1 Appendix B B 1 Appendix C C 1 RJ 45 to RJ 21 Pinouts Amphenol to Modular Jack C 1 RJ 45 Modular Jack to Wall Jack Pinouts C 2 RJ 45 to RJ 45 Extension Cables C 3 Front Panel Modular Jack to RJ 45 Pinouts C 3 R...

Страница 6: ...stem Link Connections to Macintosh and Hub 1 26 Figure 1 19 Backbone network with AsantéView 1 27 Figure 1 20 Network Connections Thin Ethernet Backbone 1 28 Figure 1 21 Connecting a Hub to an Existing Ethernet Backbone 1 29 Figure 1 22 Backbone network with AMS Link and AsantéView 1 31 Figure 1 23 Wiring for Network Management Out of Band NMS on RS 232 Port 1 32 Figure 1 24 Wiring for Network Man...

Страница 7: ...e C 3 RJ 45 Wall Jack to Modular Jack Pinouts C 2 Figure C 4 RJ 45 to RJ 45 Pinouts C 3 Figure C 5 Hub to Modular Jack Pinouts C 3 Figure C 6 Crossover RJ 45 Cable C 4 Tables Table 1 1 Interpreting Hub Level Status Indicators 1 4 Table 1 2 Interpreting Port Level Status Indicators 1 5 Table 1 3 AsantéHub 1012 Factory Default Settings 1 9 Table 2 1 LED Status Indications 2 3 Table 2 2 AsantéHub Con...

Страница 8: ...e Chapter 2 Hardware Description It describes the hub s capabilities and gives details of the front and rear panel features It also lists special network configurations for more complex networks Network planning See Chapter 3 Network Planning which covers topics in network planning such as topological considerations and detailed site requirements Troubleshooting See Chapter 4 Troubleshooting It de...

Страница 9: ...of AsantéView see the manuals AsantéView Users Guide for Macintosh Out of Band or AsantéView Users Guide for Macintosh In Band Compatibility The AsantéHub is compatible with all 10BaseT compliant twisted pair products whether or not they are manufactured by Asanté If you are using the AsantéHub with a pre 10BaseT product you may disable Link Integrity on a port by port basis from AsantéView Other ...

Страница 10: ...NTE TECH Internet Mail Address tech asante asante com Please have the following information when you contact us Model PROM revision level SNMP Option Users If your network is connected to the Internet please have the following information when you contact us 1 Gateway address 2 Class of network A B C 3 Domain name 4 IP Address 5 The name of the governmental sponsoring organization 6 Information ab...

Страница 11: ... responsible organization establishing the network 10 Network type Research Defense Government non Defense Commercial If you encounter any problems call Asanté technical support at 800 622 7464 If it is determined that the equipment needs repair you will receive a Returned Merchandise Authorization RMA number for returning the equipment to Asanté Please do not return any equipment without an RMA n...

Страница 12: ...work management daisy chained connections to other hubs or to a network management station located at the end of the chain An RS 232 serial port provides connection for a network management station terminal or modem for remote dial up The AsantéHub 1012 offers comprehensive LED indicators for network status including per port link receive status automatic and manual partitioning network utilizatio...

Страница 13: ...nagement AMS AsantéView Management System Links can connect up to eight hubs and span up to 2000 feet The network management station can be connected as a device on the AMS Link or directly to the RS 232 port on the hub The RS 232 port supports a local network management station terminal for local hub configuration or modem for remote dial up Fault Isolated Network Management Network management an...

Страница 14: ...etwork management station or a designated server Asanté Reliability and Performance the quality reliability and performance you have come to expect from the maker of the award winning Asanté networking products AsantéView AsantéView LAN management software provides a graphical interface that offers comprehensive network analysis and control AsantéView Locates and identifies network devices automat...

Страница 15: ... to threshold violations by generating traps partitioning ports and or paging for assistance Protects network security with bi level password structure Stores multiple map files for historical records or hierarchical divisions of network management responsibilities For more information about AsantéView see the AsantéView manual for your version of AsantéView ...

Страница 16: ...s and fan and power AsantéHub Basics Factory Default Settings Using the 3 In 1 Uplink the Reset function and Hub ID Front Panel Quick View of Your Network The status LEDs and the twelve modular 10BaseT ports of the AsantéHub 1012 are located on the front panel Figure 1 1 ASANTE RESET PWR CPU NMP MSG UTILIZATION 1 3 5 10 20 30 50 65 COLLISION 1 3 5 10 1 2 3 4 5 6 7 8 9 10 11 12 PARTITION LINK RECEI...

Страница 17: ... In 1 and 10Base T ports ON Operator partitioned BLINKING Auto partitioned LINK RECEIVE SNMP Uplink 1 12 Individual LEDs indicate link connection and traffic on the SNMP 3 In 1 and 10Base T ports ON Link pulse detected or Link Integrity Test is disabled no traffic BLINKING Traffic receiving activities present on link COLLISION ON this percentage of packets per 25 or 5 seconds is experiencing colli...

Страница 18: ...etwork management It does not interfere with traffic through the hub Interpreting LEDs The LEDs on the front panel can be thought of as two separate groups Hub level status from PWR to Utilization at the left and Port level status Partition and Link Receive status at the right The following tables illustrate LED status indications and what they mean ...

Страница 19: ...LASHING ON Utilization LED Interpretation AAAA AA AA AAAA AA AA AA AA AA AA AA AA AA AA AA AA AAAAAAAA AAAA AA AA AA AA AAAA AA AA AA AA AA AA AA AA AA AA AA AA AAAAAAAA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AAAAAAAA AA AA AA AA AA AA AA AA AA AA AA AA AA AAAA AA AA AA AA AA AA AA AAAAAAAA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA 0 1 1 3 3 5 5 10 10 20 20 30 30 50 50 65 65 1...

Страница 20: ...d Ports 1 12 Partition Link Receive Status AA AA LED KEY OFF FLASHING ON 1 Link present Physical link at Port or Link Test disabled 2 Partitioned links will never have traffic AAAAA Partition AAA AAA AAA N o p a r t i t i o n L i n k p r e s e n t 1 N o t r a f f i c N o p a r t i t i o n L i n k p r e s e n t T r a f f i c p r e s e n t N o p a r t i t i o n N o l i n k e g 2 2 2 2 2 P o r t o p ...

Страница 21: ... Same Rating Figure 1 3 Rear panel Figure 1 4 illustrates the left side of the rear panel and describes its physical features AAAAAA AAAAAA RJ21 10 BASE T PORTS BNC Telco RJ 21 connector for connecting to a punch down block Used in place of the front panel RJ 45 ports Note The Telco connector and the RJ 45 ports cannot be used simultaneously RJ 45 IN port Can be used as thirteenth device port if t...

Страница 22: ...Socket for universal 120 250V power cord autosensing circuitry for use with U S and European power standards RS 232 connector Connection for network management station or terminal Can be used for a local terminal PC or modem for dial up network management Note Assure that the PC Terminal switch is set correctly PARTITION TRAFFIC RS232 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END Spare Fuse in Fuse...

Страница 23: ...ow for primary link selection through software in the AsantéView manual for your version of AsantéView Hub ID MAC Address Hub ID is a six byte number identical to the hub s MAC Medium Access Control address It resides in the hub PROM The format of the ID number is 00 00 94 xx xx xx If you are using Windows Out of Band software the hub ID is automatically retrieved when a new hub is connected to th...

Страница 24: ... set jumper JP7 IN 3 All front panel ports RJ 45 are hardware configured IN and cannot be modified To connect two hubs using front panel ports use a crossover RJ 45 cable see Appendix C for pinouts 4 The rear panel AMS Link ports are terminated Through End switch set DOWN To configure hub as a through device on the AMS Link if both AMS Link ports are occupied set the Through End switch UP The thro...

Страница 25: ...9 Node Age time 60 seconds Storage period for hub statistics Configure in Node Summary window in AsantéView 10 SYS contact none Configure using terminal menu System Administration Information 11 SNMP Read Community String public Configure using terminal menu SNMP submenu or AsantéView Set Hub Parameters window 12 SNMP Write Community String private Configure using terminal menu SNMP submenu or Asa...

Страница 26: ...e network management station is connected to a hub at the end of the AMS Link If you are installing a standlone hub this step creates a departmental network with network management as illustrated below Note For in band network management connections please refer to Chapter 2 Hardware Description Figure 1 14 Single hub network with AsantéView ...

Страница 27: ...e figures refer to two small white DIP switches besides the paired RJ 45 ports near the right hand side of the rear panel Figure 1 16 below illustrates DIP switches Figure 1 17 illustrates the switch settings key These DIP switches affect 1 termination of the AMS link and 2 connection of terminal or PC to the RS 232 port on the hub A double headed arrow indicates that the switch setting does not a...

Страница 28: ...greyed out box is shown to represent the fact that a given switch setting is not important for what is being discussed in this section How to Do It The following figures show connections for PC or Macintosh network management stations with the appropriate switch settings To connect the network management station 1 Set the switches on the rear panel of the hub as shown in the figure that applies to...

Страница 29: ...WN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating To PC Comm Port RJ45 DIP Switches Note To cable a PC use a straight through cable To cable a modem use a null modem crossover cable RS232 LINK EXTENDER PC ASANTE DB9 to DB9 SERIAL CABLE Figure 1 17 Out of Band AMS AsantéView Management System Link Connections to PC and Hub Note ...

Страница 30: ...es congratulations you are finished installing your network If you are installing a multiple hub network you have two more steps to complete Step 7 Making Network Connections If you are adding a second hub to the network you need to make network connections between the hubs There are three basic options for network connections BNC which generally connects the AsantéHub to a thin Ethernet backbone ...

Страница 31: ...er 2 Hardware Description Figure 1 19 Backbone network with AsantéView Network Connections to Thin Ethernet The most common network connection is the thin Ethernet backbone network This configuration uses the BNC port on the rear panel The T connector on the backbone cable is connected directly to the BNC port This connection is simple to make See the following figure ...

Страница 32: ...use Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating Terminator RJ21 10 BASE T PORTS IN or OUT AUI PARTITION TRAFFIC RS232 RS485 1 2 THROUG H AMS LINK UP PC DOWN TERMINAL EN D 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating Terminator Figure 1 20 Network Connections Thin Ethernet Backbone The following figure shows the con...

Страница 33: ...ardware Description Table 2 1 LED Status Indications and Figure 2 1 LED Status Indications Normal Operation For a description of the hub pre test LED display see Step 2 Power Up and Pre Test 2 First lay the new cable segment from the end of the current backbone to the new hub location without making any connections 3 Terminate the new cable segment If necessary add a T connector for the new hub 4 ...

Страница 34: ...l see activity on the Link Receive Uplink LED this should be on indicating the connection through the backbone The same activity should be displayed on the Traffic LED on the rear panel Depending on network activity you may also see activity on the Partition Uplink LED Collision or Warning LEDs Utilization LEDs and MSG LEDs For details see Chapter 2 Hardware Description Table 2 1 LED Status Indica...

Страница 35: ...nects hubs for out of band network management in AsantéView A backbone network with AMS Link and AsantéView is shown below The network management station runs AsantéView as an application and does not have to be dedicated to managing the AsantéHub network Figur e 1 22 Backbone network with AMS Link and AsantéView What You Need You need a straight through RJ 45 extension cable for each AMS Link con...

Страница 36: ...TION RS23 2 RS48 5 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating TRAFFIC RJ21 10 BASE T PORTS IN or OUT AU I PARTITION RS23 2 RS48 5 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating TRAFFIC RJ21 ...

Страница 37: ...r 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating RS485 THROUGH RS232 UP PC AMS LINK DOWN TERMINAL PARTITION TRAFFIC AUI IN or BNC 3 IN UPLINK RJ21 10 BASE T PORTS 1 2 END Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating RS485 THROUGH RS232 UP PC AMS LINK DOWN TERMINAL PARTITION TRAFFIC AUI IN or BNC 3 IN UPLINK RJ21 10 BASE T PORTS Figure 1 24 Wi...

Страница 38: ... Chapter 2 to view details of the front and rear panel features and learn more about AsantéHub hardware Go to Chapter 3 to learn more about network installation Go to Chapter 4 if you need troubleshooting information To configure and use AsantéView see the AsantéView manual for your version of AsantéView ...

Страница 39: ...features include Compact design that fits on a desktop or can be wall or rack mounted Twelve device ports Dedicated out of band network management connections Optional in band network management using SNMP Complete flexibility in LAN topology using the 3 In 1 Uplink with 10BaseT ThinNet and AUI connectors Support for redundant network links Comprehensive LED indicators for network status Interpret...

Страница 40: ...he following table ASANTE RESET A PWR CPU SNMP MSG UTILIZATION 1 3 5 10 20 30 50 65 1 3 5 10 COLLISION 1 2 3 4 5 6 7 8 9 10 11 12 PARTITION LINK RECEIVE SNMP UPLINK A AA A A A AA AA AA A AA A A A A A A A AA A AA A AA A A A AA A AA A AA A Late Collision Misaligned CRC error Runt Fragmented packets Short event missing SFD I I I I I I I I I I I AAAAA A B C D E H1H2 H3 I1 I2 I3 G F Figure 2 1 AsantéHu...

Страница 41: ...d blinking 65 Bar graph display indicates hub utilization at 1 3 5 10 20 30 50 or 65 reported per 25 or 5 second Max rate 10Mbps Off Utilization is below this percentage F Collision Bar graph display four LEDs Amber Bar display indicates range of 1 3 5 and 10 This percentage of packets has experienced collision This number is calculated as Collision Collisions Good Frames Off Collision rate is bel...

Страница 42: ...port Speed of blinking increases with packets sec I Partition 4 separate LEDs I1 SNMP2 Amber blinking Hub has autopartioned the SNMP link Collisions too high Off SNMP link not partitioned I2 Uplink and rear panel PARTITION LED Amber blinking Hub has autopartioned the uplink Collisions too high Amber on Operator has partitioned the uplink Off Uplink not partitioned I3 1 12 Amber on AsantéView opera...

Страница 43: ...ASE T PORTS IN or OUT AUI PARTITION RS232 RS485 1 2 THROUG H AMS LINK UP PC DOWN TERMINAL EN D 3 IN 1 UPLINK BNC 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating ASANTE RESET PWR CPU NMP MSG UTILIZATION 1 3 5 10 20 30 50 65 COLLISION 1 3 5 10 1 2 3 4 5 6 7 8 9 10 11 12 PARTITION LINK RECEIVE SNMPUPLINK 1 2 3 4 5 6 7 8 9 10 11 12 10BASE T PORTS A1 B A2 C D E F C1 C2 C3 G1 G2 G TRAFFIC S...

Страница 44: ... RJ 21 connector Provides alternative connection to punch down block for wiring closet installations C Auto switch AUI ThinNet 10BaseT port See the three physical port options below 3 in 1 port supports redundant links Port priorities are software selectable see Chapter 1 Quick Start the sections Default Settings and Use of the 3 in 1 Uplink also see AsantéView manual for your version of AsantéVie...

Страница 45: ... AsantéHub Switches and Switch Settings Switch Description A On Off Switch Turns power to the unit on and off Power condition of a networked unit does not affect AMS Link Ports i e if an intermediate hub is powered off all the other hubs can still communicate over the AMS link B Through End switch AMS Link Termination Terminates AMS Link connection see AMS Link above Up through down end If both AM...

Страница 46: ...the AsantéView manual for your version of AsantéView See the following sections for details Note All RJ 45 cabling information given in this manual assumes that you use straight through cables except where otherwise noted For details on cable construction see Appendix C Pinouts and Cable Specifications Interconnecting Hubs via the RJ 45 Port The rear panel RJ 45 ports are used to interconnect hubs...

Страница 47: ...elines See Appendix C Pinouts and Cable Specifications for details on cable construction RJ21 10 BASE T PORTS IN or OUT AU I PARTITION RS23 2 RS48 5 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating TRAFFIC RJ21 10 BASE T PORTS IN or OUT AU I PARTITION RS23 2 RS48 5 1 2 THROUGH AMS LINK UP PC DOWN T...

Страница 48: ...llowing figure RJ21 10 BASE T PORTS IN or OUT AU I PARTITION TRAFFIC RS232 RS485 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating RJ21 10 BASE T PORTS IN or OUT AU I PARTITION TRAFFIC RS232 RS485 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow B...

Страница 49: ...t be maintained Since the AUI port is 802 3 10Base5 compatible you may use it according to those specifications paying special attention to maximum distance number of devices and termination guidelines See Table 3 1 IEEE 802 3 Network Specifications for guidelines See Appendix C Pinouts and Cable Specifications for details on cable construction Note Make sure SQE Signal Quality Error is disabled o...

Страница 50: ...RS232 RS485 1 2 THROUG H AMS LINK UP PC DOWN TERMINAL EN D 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating RJ21 10 BASE T PORTS IN or OUT AUI RS232 RS485 1 2 THROUG H AMS LINK UP PC DOWN TERMINAL EN D 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating PARTITION TRAFFIC PARTITION TRAFFIC P...

Страница 51: ...éView s Port Control window also configures redundant link settings see the AsantéView manual for your version of AsantéView RJ21 10 BASE T PORTS IN or OUT AU I PARTITION RS23 2 RS48 5 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating TRAFFIC RJ21 10 BASE T PORTS IN or OUT AU I PARTITION RS23 2 RS48...

Страница 52: ...ce Only With Fuse of Same Rating DIP Switches Figure 2 8 Local Terminal Connection to Hub Cabling the Network Management station or a Modem to the Hub out of Band To connect a PC network management station or modem to the hub for out of band network management use the RS 232 port or either of the rear panel AMS Link ports If you use the AMS Link port the Through End switch must be set to Through i...

Страница 53: ... TRAFFIC RS232 RS485 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating To PC Comm Port RJ45 DIP Switches Note To cable a PC use a straight through cable To cable a modem use a null modem crossover cable RS232 LINK EXTENDER PC Figure 2 9 NMS PC OOB Connections to a stand alone Hub To connect a Macint...

Страница 54: ... the Hub In Band To connect a network management station to the hub for in band network management use the connections shown in Figure 2 10 below The network management station can be connected in any hub in the network The DIP switch settings on the rear of the hub are irrelevant to in band network management RJ45 RJ45 To PC ASANTE RESET PWR CPU NMP MSG UTILIZATION 1 3 5 10 20 30 50 65 COLLISION ...

Страница 55: ... BASE T PORTS IN or OUT AUI PARTITION RS232 RS485 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse of Same Rating TRAFFIC RJ21 10 BASE T PORTS IN or OUT AUI PARTITION RS232 RS485 1 2 THROUGH AMS LINK UP PC DOWN TERMINAL END 3 IN 1 UPLINK BNC Spare Fuse in Fuse Holder 2A 250V Slow Blow Fuse Replace Only With Fuse ...

Страница 56: ...seT is a communications standard for twisted pair Ethernet defined by the Institute of Electrical and Electronic Engineers IEEE This standard IEEE 802 3 defines how Ethernet components interact with each other on Local Area Networks LANs constructed of unshielded twisted pair telephone wire Twisted pair wiring provides reliable communication between network devices located up to 100 meters 328 fee...

Страница 57: ... twisted pair cable radiating out to every desk from a central wiring cabinet You can use this cabling for your local area network By taking advantage of available wire pairs in existing telephone wire you avoid costs of cable installation If you need additional cable telephone wire is much less expensive than thin Ethernet cable or thick Ethernet cable Approximate cost Cable type 0 10 foot 24 gau...

Страница 58: ... think you will need With adequate preparation adding another device to the network can often be as simple as plugging in another network connection Determine Whether You Can Use Existing Wiring You may be able to use existing wiring with your installation All UTP wire used between hub and hub or hub and device should conform to the IEEE Standard 802 3 Draft 10 Section 14 4 Media Specification In ...

Страница 59: ...nd cabling Modify the map as you change your plans and use the completed map as a guide during installation It is a good idea to create the map on a computer so you can easily modify it Figure 3 1 Sample network map Create a Network Log A network log is a record of information about the network Consider creating and maintaining a network log to use as a reference when you are installing and managi...

Страница 60: ...may contain the following information for each device on the network Name Description Device number Hub port number A more detailed log may contain Serial number of each device Network number Location of the wire pair Wall jack number and more ...

Страница 61: ...ar Network Tree Network A tree network or hierarchy of multiple stars is created when hubs are interconnected from the front panel ports of the central hub to the rear panel RJ 45 OUT port of each associated hub using twisted pair wiring Some advantages of a tree topology are Cost savings unshielded twisted pair wire is less expensive than other wire types Uniform wiring Device and network connect...

Страница 62: ...bone cable are connected to the rear panel BNC ports of the AsantéHub I n a thick backbone network the AsantéHub is connected to a thick Ethernet backbone by way of the rear panel AUI port Drop cables connected to external transceivers on the backbone cable extend to each hub Some advantages of a backbone topology are Longer distances between hubs thick coaxial can span 500 meters and thin coaxial...

Страница 63: ... in a single line the linear or bus configuration Better noise immunity because coaxial cable either thick or thin is shielded vs unshielded twisted pair Physical strength coaxial cable is stronger than unshielded twisted pair Figure 3 4 Thin Ethernet Backbone Network ...

Страница 64: ...ecifications for 10BaseT network configurations using thick thin and twisted pair wiring Thick thin and twisted pair network requirements are based on the IEEE 802 3 Ethernet specification for local area networks Different drafts in the 802 3 specification describe requirements for each media type Specifications for each media type are listed below ...

Страница 65: ... Network Interface Card such as the Asanté MacCon3 NB for the Macintosh II family or EtherPaC for the IBM PC and compatibles 3A twisted pair link is equivalent to one segment Note All 802 3 networks run at 10Mbps In addition to observing the requirements above follow the 5 4 3 rule to be sure that your configuration does not exceed the maximum data transmission path the longest path through any gi...

Страница 66: ... unshielded solid conductor copper wiring You can identify this type of wiring by its alternating color bands green white white green blue white white blue and so on 2 The wire must be insulated Insulated wire has guaranteed performance up to 40 C In temperatures higher than 40 C there is more interference Note that the insulation must be approved for use by your local building codes For example p...

Страница 67: ...etwork Wiring and Tracing Existing Wire Routes Site Requirements for Wiring Wiring is affected by electrical interference in its immediate environment Ensure that both existing and planned wiring are not in close proximity to sources of electrical noise such as radio transmitters and broadband amplifiers motors and current switches do not run close to fluorescent lighting fixtures do not run paral...

Страница 68: ...such as motors or heavy current switches Constructing RJ 45 Extension Cables To make extension cables first measure the necessary lengths remembering not to exceed a length of 100 meters Then have the cables constructed according to the pinouts in Appendix C Pinouts and Cable Specifications ...

Страница 69: ...twork s status include the LEDs on the AsantéHub on the network interface card and on the TP MAU In general the LEDs give information about the status of a particular unit or function This section covers how to read the LEDs on the AsantéHub 1012 Start up Display When you first turn on the AsantéHub all the LEDs switch ON in sequence while the hub goes through a series of internal diagnostics The ...

Страница 70: ...TILIZATION Green Amber Red or OFF Indicates of utilization of this hub s bandwidth COLLISION Amber OFF Indicates of collisions on this hub WARNING OFF Red Warnings present OFF No warnings present PARTITION Amber OFF Amber ON or blinking indicates partitioning port is down OFF indicates normal port operation LINK RECEIVE Green ON BLINKING ON Link is present or Link Integrity test is disabled 1 BLIN...

Страница 71: ...ed at a distance or purchase cable with more EMI shielding Building may need to be earth grounded Make sure that physical connections are in place tightly attached and properly terminated Use well built cables with strong cable connector joints and good EMI shielding Place away from high activity areas of the building to avoid mechanical damage See Chapter 1 Quick Start for wiring for star and thi...

Страница 72: ...rity testing is pre 10BaseT If so disable Link Integrity test on the port to that device Check network interface card hardware configuration Check port settings and Link Integrity Run card diagnostics Most card manufacturers include some form of diagnostic software to ensure the card is functioning properly Consult the documentation that comes with your network interface card Check network operati...

Страница 73: ...t Control window or a local terminal Other workstations connected to the hub are disrupting communication of workstations being brought up Remove the disrupting workstations or disable partition their links through AsantéView Port Control window or a local terminal Fan has failed The fan should be running while power is on Miscellaneous problems you want to run hub diagnostics Reset the hub This d...

Страница 74: ...te Garde Mac Protocol Analyzer Inter Poll Apple Computer Mac Network Analyzer Sniffer Network General DOS Network Analyzer WatchDog Network General DOS Network Analyzer Interpreting Events in the Hub Collision After a collision on the hub the hub momentarily autopartitions the offending port If collisions are low you may not be able to notice this instantaneous process However if collisions are hi...

Страница 75: ...ble the Link Integrity test for the port connected to that device First check with the vendor to make sure disabling the Link Integrity will make the card compatible with the AsantéHub 1012 Then follow these steps 1 Determine which port number the workstation is wired to on the AsantéHub 2 From the AsantéView Port Control window disable link integrity testing on that port For this procedure see As...

Страница 76: ...Appendix A A 2 ...

Страница 77: ...ntegrity Status 14 to indicate Auto partitioning Status 8 to show Hub Bandwidth Utilization 4 to show Collision Percentage 1 to show Late Collision 1 to show Alignment CRC Errors 1 to show Runt Fragmented Packets 1 to show Short Event Missing SFD 1 to show CPU Activity 1 to show Message Waiting 1 to show SNMP Option present 1 to show Power on off 1 to show Uplink Partition status rear panel 1 to s...

Страница 78: ... 9 cm x 16 W 40 6 cm Weight Approx 6 lbs 2 73 kg Environmental Operating Temperature 0 to 40 C ambient Operating Humidity 5 to 85 noncondensing Operating Altitude 10 000 ft 3 048m Storage Temperature 30 to 80 C Storage Humidity 5 to 90 noncondensing Storage Altitude 25 000 ft 7 620m See AsantéView manual for recommended technical specifications of the network management station ...

Страница 79: ...ck Orange Orange Black Black Green Green Black Black Brown Brown Black Black Silver Silver Black Yellow Blue Blue Yellow Yellow Orange Orange Yellow Yellow Green Green Yellow Yellow Brown Brown Yellow Yellow Silver Silver Yellow Violet Blue Blue Violet Violet Orange Orange Violet Violet Green Green Violet Violet Brown Brown Violet Violet Silver Silver Violet 1 TD 2 TD 3 RD 6 RD 1 TD 2 TD 3 RD 6 RD...

Страница 80: ...k Amphenol Connector to 8 Pin Modular Jack RJ 45 Modular Jack to Wall Jack Pinouts These pin numbers are for an Asanté 10BaseT card or MAU positioned correctly with the notch on the 8 pin modular jack down Pin 1 is the left most pin and Pin 8 is the right most pin 1 TD Data Transmit positive 2 TD Data Transmit negative 3 RD Data Receive positive 6 RD Data Receive negative 1 2 3 4 5 6 7 8 1 2 3 4 5...

Страница 81: ... 3 6 1 2 3 6 Rx Rx Tx Tx Rx Rx Tx Tx Figure C 4 RJ 45 to RJ 45 Pinouts Front Panel Modular Jack to RJ 45 Pinouts The cabling between 8 pin twisted pair modular jacks and the hub must be straight through unshielded twisted pair 24 gauge solid conductor unshielded twisted pair wire This figure illustrates in more detail the individual twisted pairs that make up the straight through twisted pair modu...

Страница 82: ...specifically noted AUI DB 15 Pinouts Pin Circuit Signal Name 03 DO Data Out positive 10 DO Data Out negative 11 DO S Data Out circuit Shield 05 DI Data In circuit positive 12 DI Data In circuit negative 04 DI S Data In circuit Shield 07 CO Control Out positive optional 15 CO Control Out negative optional 08 CO S Control Out Shield optional 02 CI Control In positive 09 CI Control In negative 01 CI ...

Страница 83: ...uts DB 9 Pin Name Direction 1 DCD Output from AsantéHub 1012 2 TXD Output from AsantéHub 1012 3 RXD Input to AsantéHub 1012 4 DTR Input to AsantéHub 1012 5 GND 6 DSR Output from AsantéHub 1012 7 RTS Input to AsantéHub 1012 8 not used 9 not used ...

Страница 84: ...etwork Provides interconnection among subnetworks A network topology in which devices are connected to a single linear length of wire See tree network bandwidth The capacity of a network to transmit information The unit of measure used may be bps bits per second or baud The higher the bandwidth the greater the information carrying capacity of the network and the faster the same data can be transmi...

Страница 85: ...ess Collision Detection A process used to regulate network transmissions that has each station listen just prior to transmitting to assure no other station on the network is transmitting then the message can be sent If two stations start transmitting at the same time the resulting data is illegible The sender knows to transmit again after a small random interval when it fails to receive a positive...

Страница 86: ... computers and peripherals It may run on shielded or unshielded twisted pair LocalTalk and compatibles thin and thick Ethernet and other media fiber optic cable Thin transparent fibers of glass or plastic that transmit light FIORL Fiber optic inter repeater link a fiber optic cable implementation of the IEEE 802 3 standard gateway address The address of a software or hardware product that allows a...

Страница 87: ...gnals are returned by the receiver to the originator so that they can be compared to the original data Loopback on a working packet network can impair transmission MAC address A unique 48 bit binary number usually represented as a twelve digit hexadecimal number encoded in a device s circuitry to identify it on a local area network MB Megabyte s Mb s or Mbps Megabits per second modem From the term...

Страница 88: ...grammable Read only Memory A type of memory that allows data to be written into the device with hardware called a PROM programmer punch down block Device for wiring twisted pair cables between communication devices and pre existing links installed behind building walls RJ 11 A four contact or six contact modular plug commonly used in telephones RJ 45 An eight contact modular plug used for data com...

Страница 89: ...minates switch AMS Link dedicated out of band network management connection topology The physical layout of devices and links in a network Types of topologies include star ring and bus transceivers A device that can both transmit and receive signals from the terms transmitter receiver A transceiver connects a node to the network tree network A network topology in which only one route exists betwee...

Страница 90: ...ling use of 2 8 D Data transmission path limits 3 10 Default setting modem dial string 1 10 SNMP read community 1 10 SNMP write community 1 10 SYS contact Configuration SYS contact 1 10 Default settings AMS link i Configuration AMS link port configuration 1 10 RS 232 port Configuration RS 232 port configuration 1 10 Default settings AsantéHub 1 8 Dimensions B 2 DIP switches rear panel 1 23 E EEPRO...

Страница 91: ...tegrity vii Link integrity test disabling and enabling 1 9 Link Integrity Testing disabling A 1 Link Selection auto select priorities 1 8 Location requirements 1 14 M MAC address 1 8 Modem dial string default setting 1 10 N Network configuration maximum data path 3 10 Network configurations 3 6 Network connections BNC 1 26 Network connections rear panel 1 6 7 NMS connections OOB to hub 1 31 32 33 ...

Страница 92: ...d community default setting 1 10 SNMP write community default setting 1 10 SQE 2 11 Straight through cabling use of 2 8 Support for Pre 10BaseT A 1 Switches 1 6 Switches 2 7 SYS contact default setting 1 10 T Technical Specifications B 1 TELCO connector 1 6 Temperature for hub 1 14 Terminal set switch when using 1 9 Termination AMS link 1 32 33 The figure below illustrates the front panel LEDs dur...

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