cat5 cable good and bad

Discussion in 'OT Technology' started by michelin man, Dec 27, 2002.

  1. michelin man

    michelin man IDB Construction

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  2. cunninglinguist

    cunninglinguist RAEPERQUICKING

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    Cat5 is pretty standard for Ethernet. It's Unshielded twisted pair which is good enough for basic networking jobs. What are you planning to use this cable for? Why do you need so much? If you do, it appears to be a decent price for 1000 ft.
     
  3. michelin man

    michelin man IDB Construction

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    i need several hundred feet for the house. (PS2 and 2 computers connecting to a hub)


    Unshielded twisted pair what else is there???
     
  4. Leb_CRX

    Leb_CRX OT's resident terrorist

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    diff levels of category...5 and 5e are fairely common and support 10/100

    |eb_CRX
     
  5. DatacomGuy

    DatacomGuy is moving to Canada

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    Cat5 is actually obsolete. If you can buy Cat5, then it's because someone is trying to dump it.

    There are 3 standards. Cat5e, Cat5E+, and Cat 6. Cat 7 exists, but only in Europe (and it's some nasty cable - 22 AWG, indv. shielded pairs with overall shield - very very expensive).

    This eBay auction is not a good deal. I sell old school Cat 5 (trying to eliminate stock) at a lot lower then that (usually 29/m). My normal price for Cat5e is $46, and is a better performing cable with a higher speed rating and more twists per inch then Cat 5. On top of that, who want's to buy an offshore cable?

    Best brands for you to buy would be Mohawk, CDT, West Penn, Berk-Tek, Belden, Lucent, Draka, Comm-Scope...

    Do not buy anything lower then Cat5e. Here is some spec information for you:

    Cat3 has transmission characteristics up to 16 mhz.
    Cat5 has transmission characteristics up to 100 mhz.
    Cat5e has transmission characteristics up to 155 mhz.
    Cat5E+ has transmission characteristics up to 350 mhz.
    Cat6 has transmission characteristics up to 400 mhz.
    Cat6+ has transmission characteristics up to 550 mhz.
    Cat7 has transmission characteristics up to 700 mhz.

    Now notice I said MHz, and not mbps, so don't get that confused.

    Other information you may or may not find useful is that UTP has an impendence of 100 ohms, and recommended conductor size is 22-24 AWG. Most, if not all, UTP data cables are 24 AWG. Always use solid conductors for backbone and horizontal cabling, and stranded conductors for patch cords. Cat3-5E+ use only 2 pairs of the 4. One for transmit, one for receive. That leaves 2 open pairs (which can be adjoined for voice applications, as voice only requires one pair). The reason for the other 2 pairs is to fight cross-talk and attenuation as well as provide speed characteristics.

    Also remember that twisted-pair cables are color-coded and must be terminated in a specific order to maintain a universal standard of installation.
     
  6. Balzz

    Balzz Guest

    Alrighty, datacomguy is now my new source for Layer-1 information. :bigthumb:
     
  7. michelin man

    michelin man IDB Construction

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    you sell this?

    -----
    thanks for the other info.
     
  8. Dommi

    Dommi Guest

    Yah. there is aboslutely no way that you can tell if that cable is good, from that advertisement
     
  9. Dommi

    Dommi Guest

    :hitit:
     
  10. DatacomGuy

    DatacomGuy is moving to Canada

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    :bigthumb:

    I can answer any layer-1 questions. I consult for a world-wide tele- and data-communications distributor. This is my career. I spec, blue-print, sell, install, test, map, certify and train on any tele- and data-communication product out there.

    So ask away. ;)
     
  11. michelin man

    michelin man IDB Construction

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    what would you charge for the same amount of cable + shipping to austin?
     
  12. DatacomGuy

    DatacomGuy is moving to Canada

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    Your welcome. I hope it helps.

    Yes, I sell this. The $46/m brand is General Cable. The part number is a GEN5133299E. It is PVC/CMR jacketed, Cat5e 155mhz, and is blue. I do stock white and yellow as well.

    I can ship to any of the 48 states. Price does not include freight, which if you give me your zip I can tell you what the price will be. Won't be much, as General boxes don't weigh too much. I can ship upon receipt of payment (credit card - will ship same day)

    I don't mean to spam, just helping out. This offer is for anyone out there who needs any cable. I stock everything from Cat3 to Cat6+, plus full line of fiber, copper backbone (25p+) and gell-filled direct burial. I even have 6p Aerial cable. ;) I also stock all the tools and all the ends.
     
  13. DatacomGuy

    DatacomGuy is moving to Canada

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    46/M + FRT. What is your ZIP?
     
  14. CompiledMonkey

    CompiledMonkey New Member

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    Forget CAT5, 802.11b is your friend. :o
     
  15. DatacomGuy

    DatacomGuy is moving to Canada

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    Wireless is good, but not for everybody. Doesn't work in every location, and isn't the easiest for a n00b to setup.
     
  16. michelin man

    michelin man IDB Construction

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    I have a wireless hub at the house.
     
  17. CompiledMonkey

    CompiledMonkey New Member

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    Disagree with that. The Linksys solution is quite plug and play. I think your statement should read, "and it isn't the easiest for a n00b to secure". :)
     
  18. CompiledMonkey

    CompiledMonkey New Member

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    What are you waiting for? Gogogogo! :big grin:
     
  19. DatacomGuy

    DatacomGuy is moving to Canada

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    :werd: Fair enough. ;)
     
  20. michelin man

    michelin man IDB Construction

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    46 for a meter?
     
  21. DatacomGuy

    DatacomGuy is moving to Canada

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    No, I'm sorry. 46 per thousand.

    /m = Per Thousand
    /c = Per Hundred
    /e = Per Each.
     
  22. michelin man

    michelin man IDB Construction

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    zip is 78759
     
  23. KDubb

    KDubb everyday I'm hustlin'

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    woohooo
     
  24. DatacomGuy

    DatacomGuy is moving to Canada

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    You are in zone 5. Total package weight is 20lbs, freight is 7.68. Total cost to ship to Austin after 6% sales tax is 56.90 to your door.
     
  25. michelin man

    michelin man IDB Construction

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    PM
     

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