Posted on 2004-10-29
Ok, can someone verify this for me?
1. 10base T and 100 base T are both wired the same. 10baseT runs at 10mbps and 100baseT typically runs at 100mbps
2. Cat3 and Cat5 are terminated the same. The physical difference is that Cat5 has more twists in it?
3. Half duplex uses 1 pair (thats what my Cisco book says?). One wire transmits, one receives. Must do one or the other. Cannot do both simultaneously. Half duplex 10baseT operates at 10mbps. Half duplex 100baseT operates at 100mbps (still uses 1 pair).
4. Full duplex uses 2 pair. 2 wires transmit, 2 receive at the same time. Full duplex 10baseT can run up to 20mbps. Full duplex 100baseT can run up to 200mbps.
I thought half duplex used 2 wires to transmit, 2 wires to receive (not simultaneously). Buy my Sybex Cisco book is saying otherwise ?