wire capacity and pull-ups - maybe you can help!

I have been browsing the net for a while to no avail: can somebody explain to me (and if not, give me a reference where I can find an answer) the relation between high wire capacity and the placement of pull-up resistors on that wire to compensate?
Thanks and sorry for posting this question here

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  • A couple of members of the forum at http://www.8052.com are very strong in this stuff, try posting there. Do note that at that forum, fortunately, real name is required, you will get bumped off if you try your thorny monniker.

    I, when using long wires place a terminating resistor at either end with the resistnce of the wires characteristic impedance. RS485 is 'my' typical example.

    Erik

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  • A couple of members of the forum at http://www.8052.com are very strong in this stuff, try posting there. Do note that at that forum, fortunately, real name is required, you will get bumped off if you try your thorny monniker.

    I, when using long wires place a terminating resistor at either end with the resistnce of the wires characteristic impedance. RS485 is 'my' typical example.

    Erik

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