Nothing going on here, move along…

Ethernet

802.2

802.3

802.11x

Cabled ethernet

End stations listen for a clear line and then send. If no one is sending data the transmission succeeds, if someone is sending data there is a collision and the transmission wont work.

10BASE-T

10 Mbps

Baseband transmission

Twisted pair cabling

Uses star topology

100BASE-TX

Tx means it can take copper and fiber optic

1000Base-TX

Fast enough for live video

You can have several different bases on a network

Wi-Fi

802.11a

54 Mbps

5GHz radio frequency

30m range

80211b

2.4 GHz

11Mbps

30m range at 90m only 1Mbps

Interference from cordless phones, microwaves or bluetooth.

802.11g

54Mbps

2.4GHz

Compatible with 802.11b

30m range

works with a, b or g

802.11n

theortically 540 Mbps

2.4 or 5 GHz

50m range

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