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                        Kingston Technology 
EtheRx 10BASE-T WorkGroup 
and Stackable Ethernet Hubs 
User’s Guide 
 
Models: KNE8TP/WG 
 KNE8TP/SE 
 KNE16TP/WG 
 KNE16TP/SE                                                                                                                                                                                                                                                                                                                                                                
                    
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                           Kingston’s Technology’s  EtheRx 10BASE-T  WorkGroup and Stackable  8-Port and 16-Port  Ethernet Hubs    User’s Guide        Part No. 4460001-001.B00                Kingston Technology Company  17600 Newhope  Fountain Valley, CA  92708  (714) 435-2600 EtheRx User’s Guide - Rev. B00 Kingston Technology Company                                                                                                                                                                                            
                    
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                         i  TABLE OF CONTENTS  Introduction......................................................................................1  Model Types......................................................................2  Special Features ...............................................................3  Package Contents.............................................................3  Design Features ..............................................................................4  Repeater Functions..............
                    
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                        ii     Rear Panel ......................................................................10  BNC Port...........................................................10  AUI Port ............................................................10  8 or 16 UTP Ports .............................................10  3-Pin AC Power Jack ........................................10  Network Configurations .................................................................11  Ethernet 5-4-3 Rule......................
                    
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                        General Information 1  Introduction    Intended Audience:  This manual assumes that the user has a general working  knowledge of networking principles and architecture and is familiar with  network systems in general.    Congratulations on the purchase of your Kingston EtheRx WorkGroup (WG)  series and Stackable-Enhanced (SE) series 10BASE-T Ethernet hubs. There are  two models for each series: KNE8TP/WG and KNE16TP/WG, 8 and 16-Port  WorkGroup hubs, and KNE8TP/SE and KNE16TP/SE, 8 and 16-Port  
                    
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                        2 General Information  Model Types  8-Port Hub Models    UTIL % Workgroup Hub LINK / ACTIVITY / PARTITION COLL % CASCADE KNE8TP/WG BNC1 2 3 4 5678 PWR   KNE8TP/WG  8-Port WorkGroup Hub    STACK IN STACK OUT Stackable Hub UTIL % KNE8TP/SE LINK / ACTIVITY / PARTITION COLL % CASCADE BNC1 2 3 4 5678 PWR   KNE8TP/SE  8-Port Stackable Hub      16-Port Hub Models    UTIL % ACTIVITY / PARTITION LINK / ACTIVITY / PARTITION Workgroup Hub KNE16TP/WG COLL % AUI BNC 1 2 3 4 5678 910 11 12 13 14 15 16 CASCADE
                    
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                        General Information 3  Special Features  • 8 or 16 UTP ports for 10BASE-T connection  • 1 BNC port for 10BASE2 thin Ethernet connection  • 1 AUI port for backbone or mixed media (16-Port models only)  • UTP Link, Activity, and Partition Status LEDs  • BNC Activity and Partition Status LED  • AUI Activity and Partition Status LED (16-Port models only)  • Utilization and Collision LEDs displays network traffic and  number of collisions in five LED percentage levels  • Cascade Switch on last UTP po
                    
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                        4 Design Features  Design Features    The EtheRx hub complies with the full set of repeater basic functions as  defined by IEEE 802.3, Section 9.  These functions include all Repeater  Functions, Signal Regeneration, Jabber Lockup Protection, Fragment  Extension, Collision Handling, Auto Partitioning/Reconnection, and Link Test.   These functions are usually transparent to all network activities and are  summarized below.  Repeater Functions  If any single port senses the start of a valid packet
                    
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                        Design Features 5  Automatic Partitioning/Reconnection  If any of the ports on the EtheRx hub experience excessive collisions, duration  collisions, or faulty conditions, that particular port can be partitioned.  Once  partitioned, the hub will continue to monitor that port.  If the error conditions  have been corrected or a good data packet is received without a collision, the  hub will automatically reconnect that port to the network.  Link Test  For UTP port connections, the EtheRx hub implem
                    
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                        6 Hardware Installation  Hardware Installation  Before you begin installing network cables, please take a few moments to  familiarize yourself with the EtheRx hubs.  The front and rear panels of the  Stackable hubs are used for illustration.   Note:  WorkGroup hubs have identical features except for the Stacking Ports.  Front Panel  Utilization LEDs UTP Port LEDs STACK IN STACK OUT Stackable Hub UTIL % KNE8TP/SE LINK / ACTIVITY / PARTITION COLL % CASCADE BNC1 2 345 6 7 8 PWR BNC Port LED Cascade
                    
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                        Hardware Installation 7  Utilization and Collision LEDs  There are five Utilization and five Collision LEDs to display the network  traffic and number of collisions on the network. The utilization LEDs measure  the amount of data traffic in frames per second (FPS). The LEDs will light in  relation to the amount of traffic. The collision LEDs measure the collisions per  second (CPS). The LEDs will light in relation to the amount of collisions.    FPS/CPS % Activity LED 1 LED 2 LED 3 LED 4 LED 5  
                    
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                        8 Hardware Installation  8 or 16 UTP Port LEDs  The LINK/ACTIVITY/PARTITION LEDs use two colors to display three  states of operation for the 8 or 16 UTP ports. If a good link is established on  any given port, the green LED will be continuously lit, indicating a valid  network connection between the network node and the hub.  When data is  received, the LED will flash green.  A flash may be longer or shorter  depending on the length of the data packet being received. If the port is  partitioned
                    
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                        Hardware Installation 9  Using a Straight-Through Cable      Using a Crossover Cable    Fig. 1-4 Cable Switch functions    Notes on MDI and MDI-X Ports  MDI (Media Dependent Interface) is the IEEE 10BASE-T standard for the  interface to the UTP cable.  For two 10BASE-T devices to communicate with  each other, the transmitter of one device must be connected to the receiver of  the other device.  This can be achieved by using a crossover cable, or by using  one MDI-X port that implements the cross
                    
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                        10 Hardware Installation  Rear Panel       	    
   Fig. 2-1  KNE8TP/SE Rear Panel       	           	   
   Fig. 2-2  KNE16TP/SE Rear Panel  BNC Port  This port is labeled BNC, and has a built-in transceiver for direct 10BASE2  connection via thin coaxial cable.  Use RG-58 A/U or RG-58 C/U type cable.   Refer to Appendix B for 10BASE2 cabling guidelines when connecting to this  port.  AUI Port  On 16-Port Models only.  The AUI port is a 15-pin D-sub con
                    
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                        Network Configurations 11  Network Configurations    The installation of the EtheRx hub is simple and can be configured for either  the Ethernet Star topology,  Linear Bus topology, or vertically stacked (SE  models only), or horizontally cascaded to other Ethernet hubs.  For cascading,  please observe the Ethernet 5-4-3 Rule.  Ethernet 5-4-3 Rule  The Ethernet 5-4-3 rule states that the maximum transmission path permitted  between any two stations is:  • 5 segments  • 4 repeater sets  • 3 coax 
                    
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                        12 Network Configurations  Linear Bus Network    The typical network configuration for 10BASE2 networks is a Linear Bus  topology in which nodes are connected to the BNC connector via a thin coaxial  cable.  This configuration allows 10BASE2 nodes to communicate with a  10BASE-T segment.  A BNC 50Ω (Ohm) terminator must be attached to each  end of the trunk segment.  One of the terminators must be grounded.  The  purpose of the terminators is to terminate the network and block electrical  interf
                    
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                        Network Configurations 13  Stacking EtheRx SE Hubs    The EtheRx SE hubs use stacking ports located on the front panel to stack up to  five SE hubs in any combination of 8-Port KNE8TP/SE and the 16-Port  KNE16TP/SE models. Follow the directions below to stack up to five SE hubs  together:  1. Locate the 5.5” shielded twisted-pair cable included with your  package contents.  2. Plug one end of the cable into the port labeled, “Stack Out” on the  first hub.  3. Plug the other end of the cable into
                    
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                        14           Appendices    Kingston Technology Company EtheRx User’s Guide - Rev. B00