100BaseT4 Connection on a 35xx Switch

[Pabloduarte]

I have two buildings around 100 yards apart that have 50 pair Cat. 3 wire from one building to another.

I have 3525XL Switches at each building and would like to connect them using 100baseT4.

Is this Possible. What is needed. I have looked all over the cisco site for answer but have not been successful. Thanks for any Help.

[rfroom]

You will need an external 100BaseT4 to 100BaseTX transceivor. The Catalyst 3500 only uses 2 pairs of wires within a UTP cable. 100BaseT4 requires the use of all 4 pairs which is not engineered into the 3500XL.