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Accton Technology Fast EtherHub-12s, Installation Manual

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Fast EtherHub-12s User’s Guide

3-2

Configuring the Network

  Using the RJ-45 Daisy-Chain Port

You can easily connect to another hub via the MDI daisy-chain port (Port 12).
When using 

Simplied Cable Length Constraints

 as described in Chapter 2, the inter-

hub cable length is 5 meters.  Figure 3-2 shows a sample configuration.

Figure 3-2   Multiple Hub Configuration Using the Daisy-Chain Port

Summary of Contents for Fast EtherHub-12s

Page 1: ...Fast EtherHub 12s INO GG ODJI IP G...

Page 2: ...Installation Manual Fast EtherHub 12s Smart Fast Ethernet Hub with 12 100BASE TX Ports...

Page 3: ...y person or entity of any such changes Before operating this product please review the statements on electomagnetic emission interference and safety compliance in Appendix D QWHUQDWLRQDO HDGTXDUWHUV N...

Page 4: ...tallation manual Warranty registration card Please inform your dealer immediately should there be any wrong missing or damaged parts If possible retain the carton including the original packing materi...

Page 5: ...standard EIA 19 inch rack 4 Connect any devices that use a standard network interface to the RJ 45 MDI X station ports e g a workstation server or router Use 100W Category 5 STP or UTP cable to connec...

Page 6: ...l the necessary connections you can access any connected resources the hub s indicators are functioning properly If you encounter any problems in installing the Fast EtherHub refer to Chapter 2 for a...

Page 7: ...he following topics Chapter 1 Product Overview Brief description of Fast Ethernet followed by a description of this hub and a summary of its important features and specifications Chapter 2 Installing...

Page 8: ...able Length Constraints 2 4 Precise Cable Length Budgeting 2 4 Providing Power to the EtherHub 2 5 Verifying Port Status 2 6 Verifying System Operation 2 6 Chapter 3 Configuring the Network 3 1 Stand...

Page 9: ...ppendix D Regulatory Standards Compliance D 1 EMI Certification D 1 FCC Class B Certification D 1 Voluntary Control Council for Interference VCCI 2 D 2 European Community Immunity Requirements D 3 CE...

Page 10: ...List of Figures Figure 3 1 Stand Alone Configuration 3 1 Figure 3 2 Multiple Hub Configuration Using the Daisy Chain Port 3 2 Figure 3 3 Cabling Limits for Multiple Hub Configuration 3 4 Figure 4 1 Fr...

Page 11: ...can be easily integrated into an existing 10 Mbps Ethernet environment with no need for protocol translation or changes to network software Accton s Fast EtherHub 12s The Fast EtherHub 12s includes 12...

Page 12: ...ory 5 shielded or unshielded cable STP or UTP Friendly design that monitors network utilization collisions link and port partition status LED indicator panel including Utilization and Collision rate i...

Page 13: ...nnected With the jabber lock up function the hub automatically stops transmission of abnormal Ethernet frames that may cause data loss for all network users Jabber refers to abnormal Ethernet frames w...

Page 14: ...t including power requirements sufficient physical space and proximity to other network devices that are to be connected Verify the following installation requirements Power requirements 100 to 240 VA...

Page 15: ...ter depending on the port type implemented 1 Prepare the network devices you wish to network Make sure you have installed suitable 100BASE TX network interface cards for making a connection to any of...

Page 16: ...of twisted pair cable does not exceed 100 meters 3 To connect to another hub or switch you may also run straight through twisted pair cabling from a station port on this hub to a crossover port on an...

Page 17: ...connecting to a collapsed backbone e g a switch or router the collision domain is broken up enabling the use of longer cable lengths as illustrated in the preceeding table Precise Cable Length Budgeti...

Page 18: ...7m Therefore if both node A and B are linked to separate repeaters in a two hub system each using 100 meters of cable to connect to their respective hub then the inter hub cabling will be limited to 5...

Page 19: ...monitors link status for each port If any device is properly connected to the hub and transmitting a link beat signal the Link indicator lights up for the corresponding port If the Link indicator fai...

Page 20: ...lling the System 2 7 Test the adapter for an attached workstation by trying it in another computer that has been successfully connected to the network If you still can t resolve the problem please ref...

Page 21: ...In compliance with IEEE 802 3u standards the maximum cable distance between the hub and any workstation is 100 meters for twisted pair cable Figure 3 1 Stand Alone Configuration Connecting Multiple Hu...

Page 22: ...You can easily connect to another hub via the MDI daisy chain port Port 12 When using Simplied Cable Length Constraints as described in Chapter 2 the inter hub cable length is 5 meters Figure 3 2 sho...

Page 23: ...th with the longest delay time Remember that this Class II device has an inherent repeater delay of 90 bit time or 80 meters of twisted pair cable Therefore if node A and B are linked to repeaters 1 a...

Page 24: ...gment 2 To control the number of hubs in a path we recommend that one hub be used to connect to several other hubs Make sure there is only one path between any two stations on the network 3 If you nee...

Page 25: ...ain port on the front panel Moreover the system indicators provide a simple interface for monitoring the hub The front panel includes an alert indicator to show if the fan has failed a power indicator...

Page 26: ...indicators and a statistical display for network traffic as shown below Figure 4 2 Indicators Fan Alert Color Red Label Alert Function Fan status Condition Indication ON The unit s fan has failed Cal...

Page 27: ...bps bandwidth They provide a quick way to monitor the current traffic load relative to the network s capacity Collision Collision The statistical indicators show the percentage of packet collisions oc...

Page 28: ...ioned the port continues to receive data from the segment However data is not transmitted onto the segment When the problem is corrected or a valid data packet is received through the port the port is...

Page 29: ...tion Indication BLINKING Indicates the port is receiving packets blinking is proportional to the traffic entering the port OFF No packets are being received by this port RJ 45 Ethernet Ports This hub...

Page 30: ...Reference Rear Panel The rear panel on the hub includes a full range power socket Figure 4 3 Rear Panel Power Socket The power socket accepts AC power from 100 to 240V at 50 to 60Hz The unit is equipp...

Page 31: ...occurred the hub will automatically enable the port when the faulty condition disappears Symptom Link Traffic indicator remains unlit after making a connection Cause Workstation s network adapter the...

Page 32: ...utor for assistance Installation Verify that all system components have been properly installed If one or more components appear to be malfunctioning e g the power cord or network cabling test them in...

Page 33: ...ork configuration restore the original connections then try to track the problem down by implementing the new changes one step at a time Ensure that cable distances and other physical aspects of the i...

Page 34: ...Transmit Data 2 Input Receive Data Output Transmit Data 3 Output Transmit Data Input Receive Data 6 Output Transmit Data Input Receive Data 4 5 7 8 Not Used Not Used Table B 1 RJ 45 Pin Assignments S...

Page 35: ...ction as an MDI X station port or MDI daisy chain port Hub to Workstation Distance 100 meters maximum using category 5 STP or UTP cable Daisy Chain Distance 2 hubs 5 meters assuming 100 meters from ea...

Page 36: ...ates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee...

Page 37: ...tain compliance with the limits of a Class B digital device Accton requires that you use a quality interface cable when connecting to this device Changes or modifications not expressly approved by Acc...

Page 38: ...t complies with ISO IEC Guide 22 and EN45014 It conforms to the following specifications EMC EN55022 1988 CISPR 22 1985 class B IEC 1000 4 2 1995 IEC 801 2 1991 4kV CD 8kV AD IEC 1000 4 3 1995 IEC 801...

Page 39: ...Parallel blade grounding type attachment plug rated 15A 125V 240 Volts For North America UL Listed CSA Certified Cord Set Minimum 18 AWG Type SVT or SJT three conductor cord Maximum length of 15 feet...

Page 40: ...ng des Ger tes durch berhitzung kommen 6 Versuchen Sie niemals dieses Ger t selbst zu warten da beim ffnen oder Abnehmen des Geh uses die Gefahr eines elektrischen Schlages besteht 7 Keine Gegenst nde...

Page 41: ...occurred when they occurred duration of the problems the unit number serial number hardware software and the DOS version that you are using Then contact your dealer or Accton Technology Corporation fo...

Page 42: ...Taiwan s modem line Modems with 14400 through 2400 baud are supported Choose 8 data bits 1 stop bit and no parity Standard VT100 terminal emulation is supported In the United States call 408 452 8828...

Page 43: ...connect via ftp to ftp accton com tw Send your technical questions by email to support accton com tw Mail your technical questions to International Headquarters Accton Technology Corporation Attn Tech...

Page 44: ...CULAR PURPOSE OR ANY WARRANTY ARISING OUT OF ANY PROPOSAL SPECIFICATION OR SAMPLE ACCTON SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ACCTON NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO...

Page 45: ...OR SPECIAL DAMAGES CAUSED BY THE USE OF THIS PRODUCT OR INABILITY TO USE IT EVEN IF THE COMPANY OR ACCTON HAS BEEN ADVISED OF SUCH LIABILITY OR OTHER SPECIAL CLAIMS If you purchased this product in t...

Page 46: ...Mill Horton Road Stanwell Moor Staines Middx TW19 6BJ United Kingdom Phone 44 1753 687677 44 1753 680109 Fax 44 1753 689010 Accton Australia Level 6 10 Help Street Chatswood N S W 2067 Australia Phone...

Page 47: ...of an interconnection service Daisy Chain Port An MDI RJ 45 port used to cascade compatible devices in a daisy chain configuration using straight through twisted pair cable To cascade two devices eith...

Page 48: ...erconnected computers and support devices MDI Port Medium Dependent Interface MDI is the IEEE standard for the twisted pair interface to 10BASE T or 100BASE TX This RJ 45 port can be used with straigh...

Page 49: ...a star configuration i e similar to a hub and spoke arrangement This topology also requires that only one path exists between any two nodes and that data transmitted by any node is concurrently avail...

Page 50: ...B 1 D Daisy Chain Port Usage 3 2 Distance Limit for Fast Ethernet Cabling 2 3 E EMI Certification D 1 Ethernet Ports 4 5 F Fast EtherHub 12s 1 1 FCC Warning D 1 Front Panel 4 1 G Guidelines for Multip...

Page 51: ...2 Hardware Repair Service E 1 Interactive Fast Fax E 2 Ordering Information E 6 Technical Support E 3 Providing Power to the Hub 2 5 R Rear Panel 4 6 Repeater Delay 2 5 3 3 S Safety Compliance D 4 Spe...

Page 52: ...EH3012 TX 150114 101 E0197 R02...

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