[comp.protocols.misc] 10-base-T Ethernet with async cables

dfc@macs.UUCP (David Caldwell) (03/07/91)

We are installing Ethernet into a new building and we want to install
10-base-T cable.  We also want to use the same cables for async serial
communications for offices that are not equiped with Ethernet machines
but will be equiped as such in the future.

We have been told by Cabletron Industries that we need a cable that
conforms to the 258-A standard.  This cable is an 8 wire flat cable
designed for crimp on connections to RJ45 plugs.

We have no idea what this 258-A standard is or from whence it comes nor
can we find any specifications for cables which conform to this standard
from any of the standard cable manufacturers like Belden.  BTW, this
cable is supposed to have wires 1&2 twisted and 3&6 twisted.

What we would like to know is if anyone else has run 10-base-T and
asynch over the same cable at the same time and how was it done?

Send replies to mdg@macs
or griffith@stetson.BITNET

Thanks,

David Caldwell
Stetson University