Scott Parks wrote in a message to Bruce LeGrande:
 SP> This message was copied by WaterGate v0.93
 SP> From LAN at 12 Jan 98  04:08:09
 SP> Bruce LeGrande wrote in a message to All:
 BL>          0 0 1 0 0 1 1 1
 SP>              \    /  | |
 SP>               \  /   | |
 SP>               pair   pair
 BL> This would seem to mean that I only need a 4-conductor cable
 BL> for the links.  Is this right ? 
 SP> Yes.  A number of cards come with a patch cord with only 4 wires. 
 BL>  And if I just use one cable
 BL> to link (only) 2 of the systems, is the pinning parallel ?
 BL> 1-1, 2-2, 3-3, etc...
 SP> Using a Hub your wires are straight through.  Computer to computer
 SP> pairs are swaped on one end.
Sorry, I guess a more accurate (in order) diagram would be:
        1 2 3 4 5 6 7 8    (pin#)
       ----------------- 
        1 1 1 0 0 1 0 0    (connect)
        | | \     /
        | |  \   /
        pair  pair
Would the proper cross-pin then be 1->3 and 2->6 ?
With 1->6 and 2->3 being incorrect, right ?
I've also been informed by one source that I need to be VERY
careful in regards to the "twist" ?  What is this all about ??!
I'm aware that in a Cat-5 cable, the pairs are seperated into
shielded sub-groups of two conductors, and that I should probably
make SURE that pins 1 & 2 are a TP, and 3 & 6 are a TP (as above).
Other than that, are there any other things I need to watch for ?
And on a sad note :(  I just priced RJ-45 STP connectors at Black-Box
and the price is "WOW!"...  For 25 connectors (shielded), they want
$69.95 (not incl S&H) !  And they DON'T have them in a smaller qnty.
They WILL however, build a 10' crosspin STP cable for $23 + S&H.
I have some RJ-45's laying around somewhere, but they're UTP, and I
think with all the OTHER RF devices in the room, I don't need to add
any more or have the LAN subject to RFI from the radio transmitters.
Sincerely,
           Bruce - ck@saber.net (http://qsl.net/kb6lwn)
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