# Crossover cable minimum length?

**URL:** <https://forums.speedlife.net/t/crossover-cable-minimum-length/8523>\
**Category:** NYSpeed Off Topic\
**Created:** [February 23, 2006, 11:15am UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523 "2006-02-23T11:15:06Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![Daddie](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/daddie/32/7621_2.png) [@Daddie](https://forums.speedlife.net/u/Daddie)\
**Post date:** [February 23, 2006, 11:15am UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/1 "2006-02-23T11:15:06Z")

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What is it, like 1 foot?

I forget.

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**Author:** ![RobHimself](https://avatars.discourse-cdn.com/v4/letter/r/e480ec/32.png) [@RobHimself](https://forums.speedlife.net/u/RobHimself)\
**Post date:** [February 23, 2006, 11:19am UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/2 "2006-02-23T11:19:10Z")

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I have used a 12" crossover without any problems

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**Author:** ![Locutus](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/locutus/32/7574_2.png) [@Locutus](https://forums.speedlife.net/u/Locutus)\
**Post date:** [February 23, 2006, 11:25am UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/3 "2006-02-23T11:25:30Z")

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11.6219475" anything less will melt…

i don’t think their is a minimum. never heard it…

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**Author:** ![raven](https://avatars.discourse-cdn.com/v4/letter/r/9fc348/32.png) [@raven](https://forums.speedlife.net/u/raven)\
**Post date:** [February 23, 2006, 12:10pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/4 "2006-02-23T12:10:09Z")

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Regular Cat-5:

> Gigabit Ethernet (over copper), 1000baseT  
> Speed: 1000 Mbps  
> Max Len: 100 Meters  
> Cable: UTP, RJ-45 connectors
> 
> Fast Ethernet, 100baseT  
> Speed: 100 Mbps  
> Max Len: 100 Meters  
> Cable: UTP, RJ-45 connectors
> 
> Twisted Pair Ethernet, 10baseT  
> Speed: 10 Mbps  
> Max Len: 100 Meters  
> Cable: UTP, RJ-45 connectors
> 
> Thin Ethernet , 10 base 2  
> Speed: 10 Mbps  
> Max Len: 185 Meters  
> Cable: RG-58 type coax, 50 ohm impedance
> 
> Thick Ethernet, 10 base 5  
> Speed: 10 Mbps  
> Max Len: 500 Meters  
> Cable: RG-58 type coax, 50 ohm impedance

There has to be some specifics on the box if you bought some. . . or if you made them on your own \>.\> dunno

At least this is some reference. . . and 100+m wow… 2 feet? heheh

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**Author:** ![raven](https://avatars.discourse-cdn.com/v4/letter/r/9fc348/32.png) [@raven](https://forums.speedlife.net/u/raven)\
**Post date:** [February 23, 2006, 12:11pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/5 "2006-02-23T12:11:10Z")

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:o Come on google \> Howie

[http://www.cat-5-cable-company.com/faq-maximum-length-cat-5-cable.html](http://www.cat-5-cable-company.com/faq-maximum-length-cat-5-cable.html)

EDIT: OH Minimum T.T Tee hee hee

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**Author:** ![Haenszel](https://avatars.discourse-cdn.com/v4/letter/h/e68b1a/32.png) [@Haenszel](https://forums.speedlife.net/u/Haenszel)\
**Post date:** [February 23, 2006, 12:12pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/6 "2006-02-23T12:12:26Z")

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he wants minimum length… of which i dont’ think there is one.

i’ve done punchdowns with less than 6" of cable in a crossover setup…

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**Author:** ![sureshot007](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sureshot007/32/7345_2.png) [@sureshot007](https://forums.speedlife.net/u/sureshot007)\
**Post date:** [February 23, 2006, 12:44pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/7 "2006-02-23T12:44:09Z")

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It’s not the size that counts…but I’ve used 3" cables in racks before…

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**Author:** ![wickedcivy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/wickedcivy/32/7295_2.png) [@wickedcivy](https://forums.speedlife.net/u/wickedcivy)\
**Post date:** [February 23, 2006, 12:57pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/8 "2006-02-23T12:57:35Z")

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yea i didnt think there ever was a minimum… doesnt make much sense? the only thing that makes a crossover a crossover is the wiring so i assume u could have it as long at u had enough wire to cross it inside

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**Author:** ![duck](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/duck/32/7183_2.png) [@duck](https://forums.speedlife.net/u/duck)\
**Post date:** [February 23, 2006, 2:02pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/9 "2006-02-23T14:02:05Z")

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minimum? don’t think there is one, can’t imagine why.  
the one i keep around is about 2 feet, but i’ve used shorter.

edit:

[quote=“Google”"]  
I can find no minimum length in the chunk of the specifications I have for 100BASE-TX cable. I read one Internet source that said it was .5 meters (1.6 ft.). I have read others that said there was no limit. I have a 2-foot crossover cable that works fine. There are loopback plugs that have almost no length. I would tend to make such a cable at least two feet long to permit some noise attenuation by the twisted pairs. However, RJ-45 plugs are cheap and one could experiment for a modest cost.  
[/quote]

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**Author:** ![LZ1](https://avatars.discourse-cdn.com/v4/letter/l/7ab992/32.png) [@LZ1](https://forums.speedlife.net/u/LZ1)\
**Post date:** [February 23, 2006, 2:55pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/10 "2006-02-23T14:55:31Z")

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In all the cisco classes I have taken there is no minimum lenght

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**Author:** ![Vile](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vile/32/7595_2.png) [@Vile](https://forums.speedlife.net/u/Vile)\
**Post date:** [February 23, 2006, 7:13pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/11 "2006-02-23T19:13:44Z")

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3 feet is the minimum… anything less and the quality of signal is degraded.

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**Author:** ![Adam0137](https://avatars.discourse-cdn.com/v4/letter/a/848f3c/32.png) [@Adam0137](https://forums.speedlife.net/u/Adam0137)\
**Post date:** [February 23, 2006, 7:45pm UTC](https://forums.speedlife.net/t/crossover-cable-minimum-length/8523/12 "2006-02-23T19:45:45Z")

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Yup… I’ve never had problems with shorter, but technically 1m is the minimum recommended length.
