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Cable and Port Assignments

 B-1

Appendix B: 

Port and Cable Assignments

RJ-45 Port

              

 

 

                                  Figure B-1   RJ-45 Connector (on the Hub Side)

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Table Appendix B:-1   RJ-45 Pin Assignments

Schematics for both straight and crossover twisted-pair cable are shown below.

Straight-Through

       Crossover

              (Hub)                     (Adapter)

                 (Hub)                        (Hub)

1   IRD+

1  OTD+

1   IRD+    

1  IRD+

2   IRD-

2  OTD-

2   IRD-     

2  IRD-

3   OTD+

3   IRD+

3   OTD+

3  OTD+

6   OTD-

6   IRD-

6   OTD-

6  OTD-

Summary of Contents for Fast EtherHub-12se

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

Page 2: ...Installation Manual Fast EtherHub 12se Smart Fast Ethernet Hub with 11 100BASE TX Ports and 1 100BASE FX Port...

Page 3: ...o make revisions to this publication without obligation to notify any person or entity of any such changes QWHUQDWLRQDO HDGTXDUWHUV No 1 Creation Road III Science based Industrial Park Hsinchu 300 Tai...

Page 4: ...r connector AC power cord optional Four rubber foot pads Installation manual Warranty registration card Please inform your dealer immediately should there be any wrong missing or damaged parts If poss...

Page 5: ...can stack them on top of each other after attaching the foot pads or install them in an standard EIA 19 inch rack 4 Connect servers or workstations to the RJ 45 MDI X station ports Use 100W Category...

Page 6: ...nother compatible hub Assuming that the maximum cable length is used for end node connections then the inter hub cabling should be limited to 5 meters However if you need to extend this length of inte...

Page 7: ...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 th...

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

Page 9: ...ory Standards Compliance D 1 EMI Certification D 1 FCC Class B D 1 Voluntary Control Council for Interference VCCI 1 D 2 European Community Immunity Requirements D 3 CE Mark Declaration of Conformance...

Page 10: ...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 The Fast...

Page 11: ...nto an existing 10 Mbps Ethernet environment with no need for protocol translation or changes to network software Accton s Fast EtherHub System The Fast EtherHub 12se includes 11 100BASE TX RJ 45 port...

Page 12: ...ors for reporting hub activity and facilitating problem diagnosis RJ 45 ports for 100BASE TX connection using unshielded or shielded twisted pair cable Port 12 can serve as an MDI X station port or as...

Page 13: ...ted if excessive collisions occur on it When the collision rate subsides the port is automatically reconnected With the jabber lock up function the hub automatically stops transmission of abnormal Eth...

Page 14: ...for ventilation Check if network cables and connectors needed for installation are available Find a suitable location at the center of the devices you want to link and near a power outlet Connecting...

Page 15: ...interface card If you are connecting to a network interconnection device attach one end of the cable to Port 12 on the hub and set the switch to MDI crossover mode see Fig 4 1 and the other end to an...

Page 16: ...2se is a Class II repeater IEEE recommends that Class II hubs be limited to a cascade of two hubs The simplest rule is that workstation connections be limited to 100 meters for twisted pair cabling an...

Page 17: ...t be within 100 meters of the connected hub when using twisted pair cabling or within 112 meters when using fiber optic cabling However when linking one or more Fast Ethernet repeaters together i e in...

Page 18: ...a power outlet 2 Check the LED marked Power on the front panel to see if it is on The unit will automatically select the setting that matches the connected input voltage Therefore no additional adjust...

Page 19: ...ck the length of the twisted pair cable to be sure it does not exceed 100 meters Be sure the length of fiber optic cable does not exceed 112 meters If you are using bit budget calculations to determin...

Page 20: ...d alone configuration as illustrated below In compliance with IEEE 802 3u standards the maximum cable distance between the hub and any workstation is 100 meters for twisted pair cable and 112 meters f...

Page 21: ...an easily connect to another hub via the MDI daisy chain port Port 12 When using 6LPSOLHG DEOH HQJWK RQVWUDLQWV as described in Chapter 2 the inter hub cable length is 5 meters Figure Chapter 3 2 show...

Page 22: ...the path 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 repeate...

Page 23: ...cable segment 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...

Page 24: ...rts connection to any 100BASE FX compatible device using standard multimode fiber optic cable with SC or ST type connectors depending on the model you purchased Note Model EH3012 TF SC has an SC type...

Page 25: ...on port and the overall condition of the hub The following table lists the indicators and their function Fan Alert Color Red Label Alert Function Fan status Condition Indication 21 7KH XQLW V IDQ KDV...

Page 26: ...ent traffic load relative to the network s capacity ROOLVLRQ LVSOD 0RGH ROOLVLRQ The statistical indicators show the percentage of packet collisions occurring out of the total packets transmitted by t...

Page 27: ...ning occurs the port s corresponding Partition LED will be continually lit RED light Otherwise this LED should be OFF unlit LQN 6WDWXV Color Green Label Link Function Indicates a valid network connect...

Page 28: ...as a hub or switch When using Port 12 remember to set the selection switch to MDI X when connecting to a workstation or to MDI when cascading to another hub or switch Remember to use 100Wcategory 5 st...

Page 29: ...nel The rear panel includes a full range power socket as shown below Figure Chapter 4 2 The Fast EtherHub 12se Rear Panel Power Socket The power socket accepts AC power from 100 to 240V at 50 to 60Hz...

Page 30: ...hub will automatically enable the port when the faulty condition disappears Symptom Link Traffic indicator remains unlit Cause Workstation s network adapter cable or hub port is defective Solution Th...

Page 31: ...ected to the network Equipment may have been unintentionally disconnected from the network External Adapters Make sure the network adapter cards installed in the workstations are compatible with your...

Page 32: ...UDQVPLW DWD QSXW 5HFHLYH DWD 2XWSXW 7UDQVPLW DWD 2XWSXW 7UDQVPLW DWD QSXW 5HFHLYH DWD 2XWSXW 7UDQVPLW DWD QSXW 5HFHLYH DWD 1RW 8VHG 1RW 8VHG Table Appendix B 1 RJ 45 Pin Assignments Schematics for bot...

Page 33: ...FDQ EH VZLWFKHG WR IXQFWLRQ DV DQ 0 VWDWLRQ RU 0 GDLV FKDLQ FRQQHFWLRQ DOVR SURYLGHV 6 RU 67 W SH ILEHU RSWLF SRUW 3RUW Hub to Workstation Distance PHWHUV PD LPXP XVLQJ FDWHJRU 873 RU 673 FDEOH PHWHU...

Page 34: ...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 35: ...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 Accton could void the u...

Page 36: ...ct 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 80...

Page 37: ...0D LPXP OHQJWK RI IHHW 3DUDOOHO EODGH JURXQGLQJ W SH DWWDFKPHQW SOXJ UDWHG 9 9ROWV RU 1RUWK PHULFD 8 LVWHG 6 HUWLILHG RUG 6HW 0LQLPXP 7 SH 697 RU 6 7 WKUHH FRQGXFWRU FRUG 0D LPXP OHQJWK RI IHHW 7DQGH...

Page 38: ...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 39: ...rred 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 for as...

Page 40: ...upgrade services at a specially reduced price Bulletin Board Service BBS In countries other than the U S call 886 3 5770 654 to reach Accton Taiwan s modem line Modems with 14400 through 2400 baud ar...

Page 41: ...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 Tec...

Page 42: ...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 43: ...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 44: ...RUWRQ 5RDG 6WDQZHOO 0RRU 6WDLQHV 0LGG 7 8QLWHG LQJGRP 3KRQH D FFWRQ XVWUDOLD 8QLW 1R RRPEHQ YH DVWZRRG 1 6 XVWUDOLD 3KRQH D FFWRQ HXWVFKODQG DKQKRIVWU DKQVWDWWHQ HUPDQ 3KRQH D FFWRQ DSDQ DQR OGJ 1LVK...

Page 45: ...ll other nodes on the same transmission medium Collision A condition in which two packets transmitted over a medium interferes with each other Their interference makes both signals unintelligible The...

Page 46: ...ss method IEEE 802 3 Standard Standard for the physical and electrical connections in local area networks developed by the IEEE The IEEE 802 3u standard covers these same issues for 100 Mbps networks...

Page 47: ...l other nodes within the same local network i e immediate collision domain Station Port MDI X MDI X ports which are used for connecting the hub to any workstation or server that has a properly install...

Page 48: ...rossover Cable B 1 E EMI Certification D 1 F FCC Warning D 1 Front Panel 4 1 H Hardware Reference 4 1 I IEEE 802 3u standard 2 4 3 1 Indicators Alert 4 2 Collision 4 3 Link 2 6 4 4 Panel 4 2 Partition...

Page 49: ...nteractive Fast Fax E 2 Ordering Information E 6 Software Update and Upgrade Service E 2 Technical Support E 3 Providing Power to the SwitcHub 2 5 R Rear Panel 4 6 Repeater Delay 2 4 3 3 RJ 45 Port Da...

Page 50: ...EH3012 TF E1296 R01 150089 101...

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