PCBUILD Archives

Personal Computer Hardware discussion List

PCBUILD@LISTSERV.ICORS.ORG

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Herbert Graf <[log in to unmask]>
Reply To:
PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
Date:
Sun, 22 Dec 2002 11:37:51 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (20 lines)
> I've read that the maximum length of a USB cable should be 5mt
> ... then this
> can be extended to 25mt by using a hub at each junction/connection ....
> crikey that is clumsy!
>
> Does any one know of any other 'cost effective' method of extending the
> length of a USB cable?

        Usb was NEVER meant to be long range. That being said, you could always TRY
a longer cable. The 5M limit is due to power issues. If a device uses the
max power available from a USB host then with more than 5M of cable the
voltage drop is large enough such that the actual voltage seen by the device
is below spec. If you have a low power device, or a self powered device, you
SHOULD be able to go farther. However, 25M IS the ABSOLUTE limit, going
beyond that will result in no communication. TTYL

        The NOSPIN Group provides a monthly newsletter with great
       tips, information and ideas: NOSPIN-L, The NOSPIN Magazine
           Visit our web site to signup: http://freepctech.com

ATOM RSS1 RSS2