Network+ Exam
Network Cable Limitations
October 29, 2025
- #network+
Network Cable Limitations
CAT 5 100 BASE-TX 100
Coaxial Cable
100 MBPS, 500 METERS
Twinaxial 10 gbps, 5 meters
100 GBPS, 7 meters


Shielded and unshielded
shielded have each pair in a shield folding
plenum is fire retardant
Riser cables used to run network cables vertically in a building. Building codes are specefic to the building.
Riser cables cannot be used in plenum spaces since they are not made from PVC or FEP.
Rollover/Console cable - type of nulll-modem cablem used to connect a computer to a console. one side is rj45 the other side is a Db9 serial. looks like a D port. out of band coms.
Crossover cable - network cable used to connect two network devices such as two compuers, two routers.
568A ON ONE SIde and 568B on the other side.
PoE power ove Ethernet - passes electrical power over the ethernet wireless access point, iP camera, VOIP phone. atleast a cat 5e or better
can provice 15.4 to 60 watts of poew using two twisted pairs. 60 - 100 watts of fupll powe using all pairs.