Even though 2.5GBASE-T (using 64B66B, PAM-16 and DSQ128) can technically use 100 MHz Cat-5e wiring courtesy of its 100 MHz bandwidth requirement, this assumes flawless wiring.

For example, CAT-3 wire is typically used for telephone service. CAT-5 is appropriate for Ethernet and works in 10Base-T networks. CAT5-E (the E stands for extended) has been certified for use at data ...

The design was tested for transmitting video on inexpensive CAT-3 twisted pair wire. According to him, when transmitting on 300m of wire, good quality color video was displayed on a monitor with ...