Network: How to Make CROSS & STRAIGHT cable
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Thread: Network: How to Make CROSS & STRAIGHT cable

  1. #1
    Security Exp 47shailesh's Avatar
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    Default Network: How to Make CROSS & STRAIGHT cable

    STEP 1: Choose the right cable…
    1. To Connect PC to PC à Cross Cable.

    2. To Connect PC to HUB/SWITCH/ROUTER
    à
    Straight Cable.

    3. To Connect HUB/SWITCH/ROUTER to HUB/SWITCH/ROUTER
    à
    Straight
    Cable

    STEP 2: Understanding CAT 5 Cables…

    Wires: CAT 5 Cable has 4 pairs of copper wire inside it.

    Colors: Standard cables has BROWN, BROWN WHITE, GREEN, GREEN-
    WHITE, BLUE, BLUE WHITE, ORANGE, ORANGE WHITE.


    STEP 3:
    Making Straight Cable…

    Nomenclature: let us first give a number scheme for cabling which we will
    follow throughout this tuto. BROWN (8), BROWN WHITE (7),
    GREEN (6), GREEN WHITE (3), BLUE (4),
    BLUE WHITE (5),
    ORANGE (2), ORANGE WHITE (1)

    Requirements: Two RJ45 Connectors, Crimping tool & CAT 5 cable of desired
    length(less than 250 meters).

    STEP 3.1:


    There are two standards adopted for Cabling EIA/TIA 568A & EIA/TIA 568B.

    When you use single standard (either EIA/TIA 568A or EIA/TIA 568B) on both the end of cable then the resulting cable is STRAIGHT CABLE.

    On the other hand if you use different cabling standard on the ends of cable then the resulting cable is CROSS CABLE

    I’ll use EIA/TIA 568B standard for creating cross and straight cable

    The figure below very well define the EIA/TIA 568B standard…



    1. Remove the covering of CAT 5 cable.
    2. Straighten the eight wires of the cable.
    3. Using Crimping tool’s cutter cut the end of wires so that they are of same length
    4. Arrange the wire in order 1, 2, 3, 4, 5, 6, 7 & 8 respectively as I have mention or as shown in the diagram.
    5. Insert the arranged cable in the RJ45 connector with clip pointing down exactly as shown in the figure.
    6. In crimping tool insert the head of RJ45 connector and crimp (press) it hardly.
    7. Follow same step with same color order for the other end of cable too.
    8. The wire you made by following these steps is a STRAIGHT cable.

    STEP 4: Making CROSS Cable…

    Of the Eight wires in Cat 5 not all are used for data transfer when using 100Mbps Ethernet card. Only 2 pairs of cable are used i.e. 2 wire for transmitting signal and two wires for receiving signal.

    Following diagram describes what I want to say:






    So now you can guess why we have to make CROSS CABLE for connecting same kind of devices. Because if use same color coding on both the side than transmitter of one m/c will send data to transmitter of another and data packets will lost, so we have to change wiring code so that transmitter of one connects to reciver of other and vice-versa.
    Reference diagram:


    Here are the Steps:
    Steps 1 to 6 are same as for STRAIGHT through cables
    7. Only difference is in color coding of other side of wire.
    8. Wire that is on 1st number on A-side (one end) should be on 3rd number on B-
    side (other side) & vice-versa.

    9. Wire that is on 2st number on A-side (one end) should be on 6rd number on B-
    side (other side) & vice versa.

    10. Now Crimp the RJ45 connector.
    11. Your CROSS wire is completed.

    digrams taken from net for representation
    Last edited by 47shailesh; 23-02-2007 at 05:18 PM.
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  2. #2
    Alpha Geek shashank4u's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    nice work that will help the noobs out there..
    Be like a postage stamp-stick to one thing until you get there.

  3. #3
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    Cool Re: Network: How to Make CROSS & STRAIGHT cable

    Good one dude...kip it up!!!!

    Cheers,
    Kunal
    Finding answers is simple, all you need to do is come up with the correct questions.

  4. #4
    Welcome To The Jungle sysfilez's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    nice post.
    Me n My Canon EOS 350D with EF 50mm [I]f[/I]1.8

  5. #5
    Right Off the Assembly Line
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    me tryin for this since a lot of days
    thanq

  6. #6
    Alpha Geek caleb's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    Quote Originally Posted by shashank4u
    nice work that will help the noobs out there..
    I agree...good work
    Intel D805 on D101Ggc/XFX8600GT/Transcend 2GB DDR /250+160GB SATA+WD250GB External/Epson StylusCX5500/LG DVDRW/Acer19" LCD/ VISTA HP & Sabayon 3.3/Compaq Presario V6112AU 2GB Ram/nVIDIA6150/VISTA HP

  7. #7
    Right Off the Assembly Line stiffuser's Avatar
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    Thumbs up Re: Network: How to Make CROSS & STRAIGHT cable

    Hai ! Buddy,

    Thanx's for your brief explaination of Network Cabling...

    ============>>>>100%
    Thanx's & Regards
    Stiff Damudro
    E-Mail :-talk2stiff@yahoo.co.in

  8. #8
    Fast 'N' Furious topgear's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    old for me but very useful for newbies
    Anyway Nice
    Who Dares Wins. No Retreat, No Surrender.

  9. #9
    TheSaint NucleusKore's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    Nice post
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  10. #10
    God of Mistakes... Garbage's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    nice !!

    Thanks dear...
    Registered Linux User #468778
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  11. #11
    Commander in Chief QwertyManiac's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    Didn't he pull this one off Thinclients' site?
    Harsh J
    www.harshj.com

  12. #12
    Broken In sauravktr's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    Good work....thanks 4 ur effort
    " 99% computer Problems are between the PC & the CHAIR "

  13. #13
    Broken In gowtham's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    tnx for the effort!
    There is always a better way to do it. Go find it!

    Thomas Alava Edison

  14. #14
    -----ATi----- nvidia's Avatar
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    Nice tutorial
    http://twitter.com/akshayms

  15. #15
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    Default Re: Network: How to Make CROSS & STRAIGHT cable


  16. #16
    vaibhavtek
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    Default Re: Network: How to Make CROSS & STRAIGHT cable

    nice 1

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