Network, Computer and Programming Resources

Network - 10Broad36

10Broad36 is a broadband, 802.3-based, Ethernet network that uses 75-ohm coaxial (CATV) cable and a bus or tree topology. This version can operate at up to 10 megabits per second (Mbps) and support cable segments of up to 1,800 meters (about 6,000 feet). A 10Broad36 network uses differential phase shift keying (DPSK) to convert the data to analog form for transmission. Because of the encoding details, a 10Broad36 network actually needs 18 megahertz (MHz) for each channel: 14 MHz to encode the 10 Mbps signal and 4 MHz more for collision detection and reporting capabilities. In a 10Broad36 network, throughput is 10 Mbps in each direction-that is, a total bandwidth of 36 MHz is needed. This bandwidth can be provided in a single cable or in two separate cables. A split-cable approach uses half the cable for each direction, which means the cable must have a 36 MHz bandwidth. A dual-cable approach uses separate cables for each direction, so that each cable needs only an 18 MHz bandwidth. BROADER CATEGORIES Ethernet; Network, Broadband SEE ALSO 1Base5; 10BaseX