Physical Layer (Layer 1) – Media (Cables) Types of UTP (unshielded twisted pair) cable

Question 1

TIA/EIA 568B

Answer 1

RJ45 - Pins 1 & 2 transmit data; pins 3 & 6 receive data

1. Straight-Through – used to connect dissimilar devices; same pins on both sides of cable. TIA/EIA 568B

Question 2

TIA/EIA 568A

Answer 2

Crossover – used to connect similar devices; pins 1 & 2 on one end connect to pins 3 & 6 on the other
end. TIA/EIA 568A

Question 3

Rollover/Console

Answer 3

Rollover/Console (Line Con 0) – used for physical configuration of a device; pins on one end (1 – 8) are
opposite on other end (8 – 1