Senin, 21 November 2011

Thin VS Thick Coaxial Cable

Thick coaxial cable (Kabel Coaxial “gemuk”)
This type of coaxial cable specified by the IEEE 802.3 10Base5 standard, where the cable has an average diameter of 12mm, and usually are colored yellow; cable of this type commonly referred to as a standard ethernet or thick Ethernet, or simply abbreviated ThickNet, or even referred to as yellow cable.

This Coaxial Cable (RG-6) when used in the network have the specifications and rules as follows:

  •  Each end should be terminated with 50-ohm terminator (recommended to use a terminator that has been assembled, instead of using a single 50-ohm resistors 1 watt, for voltage dissipation resistor has a fairly wide).
  • Maximum of three segments with the connected equipment (attached devices) or a populated segments.
  • Every network card has an additional transmitter (external transceiver).
  • Each segment contains a maximum of 100 network devices, including repeaters in this case.
  • Maximum cable length per segment is 1640 feet (or about 500 meters).
  • The maximum distance between the segment is 4920 feet (or about 1500 meters).
  • Each segment should be grounded.
  • The maximum distance between tap or Taper from the main cable to the device (device) is 16 feet (about 5 meters).
The minimum distance inter-tap is 8 feet (about 2.5 meters).


Thin coaxial cable (Kabel Coaxial “Kurus”)


This type of coaxial cable widely used in amateur radio circles, especially for the transceiver that does not require a large power output. To be used as network devices, this type of coaxial cable must meet the standards of IEEE 802.3 10BASE2, where the average diameter of about 5mm and usually black or other dark colors. Each device (device) connected to a BNC T-connector. The cable type is also known as thin Ethernet or thinnet.

This type of coaxial cable, such as the type RG-58 A / U or C / N, if implemented with

Tconnector and terminator in a network, must follow the rules as follows:

  • Each end of the cable were given 50-ohm terminator.
  • The maximum length of cable is 1,000 feet (185 meters) per segment.
  • Each segment is a maximum of 30 network devices (devices)
  • Enough network card using onboard transceiver, do not need extra transceivers, except for the repeater.
  • Maximum there are 3 segments connected to each other (populated segments).
  • Each segment should be equipped with a ground.
  • Minimum length among the T-Connector is 1.5 feet (0.5 meters).
  • Maximum cable length in one segment is 1.818 feet (555 meters).
  • Each segment has a maximum of 30 devices connected.

Network

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