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Microsoft MVP

 

USB 2 Maximum Cable Length

 
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All Forums >> Community >> Computer Software and Hardware issues >> USB 2 Maximum Cable Length
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Franchesco

 

Posts: 1
Joined: 4/12/2007
Status: offline

 
USB 2 Maximum Cable Length - 4/12/2007 6:22:55   
My backup device is a USB 2.0 250 MB Iomega Hard Drive.I'd like to put
it in my garage, requiring about 20 to 25 feet of wire. The official
USB specs say 5 meters max; if further use a hub/repeater.

I'm wondering how realistic the 5 meter spec is. I recall that parallel
printer cables were supposed to be limited to 10 feet or so; 75 foot
cables worked just fine. Same thing with the specs for RS-232 cables.

Does anyone have any real world experience with long USB 2.0 cables?
I'm thinking of building mine using unshielded CAT5 cable, one twisted
pair for power, another for data. Wise? foolish?
jaybee

 

Posts: 13959
Joined: 10/7/2003
From: Berkshire, UK
Status: offline

 
RE: USB 2 Maximum Cable Length - 4/12/2007 7:00:04   
Yes, mine didn't work, or rather it did but intermittently. The problem is it'll work fine for a while and then cause problems and the last thing you think of is the length of the cable so you spend hours trying to figure out what's wrong.

I now use a hub and it all seems fine. If you were buying new kit I'd suggest looking at wireless.



_____________________________

If it ain't broke..... fix it until it is.
:)

:)
GAWDS
Now where did I put that Doctype?

(in reply to Franchesco)
treetopsranch

 

Posts: 963
From: Cottage Grove, OR, USA
Status: online

 
RE: USB 2 Maximum Cable Length - 4/12/2007 13:32:44   
jaybee, was that a powered hub you used? I wonder if you use a powered usb hub you might me able to use longer cables.

_____________________________

Don from TreeTops Ranch, Oregon

"I've got a taste for quality and luxury"


(in reply to jaybee)
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