> The pinout on a T1 jack uses pins 1 and 2 for the receive pair and pins 4
> and 5 for the send pair. The pinout for 100Mb Ethernet uses 1 and 2 for
> receive, 3 and 6 for transmit. The color coding for the wiring is different
> and it is possible that the Ethernet cables don't have pins 4 and 5
> connected to anything. Having said all that --- The Ethernet cable seemed
> to work fine for me.
It works fine BECAUSE 1 and 2 are twisted which is okay and 4 and 5 are
ALSO twisted because 1=White/orange, 2=orange, 3=White/green, 6=green, so
this is the CORRECT twisting, Ring1 and Tip1 and Ring2 and Tip2, NEVER
twist 2 tips or 2 rings or this will have exactly the OPPOSITE effect and
actually cause problems.
BUT... do you really need twisted pair for a max 20' cable? Has anyone
just used flat satin?
~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~
Jake Messinger 713-772-6690 jake@ams.com
Advanced Medical Systems, Inc. jake@uh.edu
8300 Bissonnet #400 fax: 713-774-3498
Houston, Texas 77074 http://www.ams.com/~jake
~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~
-
To unsubscribe, email 'majordomo@livingston.com' with
'unsubscribe portmaster-users' in the body of the message.