Coaxial Cable

Consist of two conductors, operate over a wider range of frequency
50 Ohm cable: Baseband digital signaling
- Manchester Encoding, 12 Mbps, a few Kilometers
- Support on the order of 100 devices per segment
- Less signal loss in the insertion of the Taps
75 Ohm cable: Community Antenna Television (CATV)
- Broadband Analog signaling with FDM
  - 300-400 MHz
  - In CATV, each channel has 6 MHz bandwidth
- Single-Channel Broadband for High Speed Analog or Digital Signaling (No FDM)
  - Digital Signaling : Up to 50 Mbps
  - Analog Signaling (PSK): Up to 50 Mbps
- Support thousands of devices depending on data rates
- Tens of Kilometers depending on data rates
Moderate cost, components readily available

Notes: