JZ Net Solutions LLC

05/16/2020

Coaxial cable consists of a hollow outer cylindrical conductor that surrounds a single inner wire made of two conducting elements. One of these elements, located in the center of the cable, is a copper conductor. Surrounding the copper conductor is a layer of flexible insulation. Over this insulating material is a woven copper braid or metallic foil that acts both as the second wire in the circuit and as a shield for the inner conductor. This second layer, or shield, can help reduce the amount of outside interference. Covering this shield is the cable jacket.

Coaxial cable supports 10 to 100 Mbps and is relatively inexpensive, although it is more costly than UTP on a per-unit length. However, coaxial cable can be cheaper for a physical bus topology because less cable will be needed. Coaxial cable can be cabled over longer distances than twisted-pair cable. For example, Ethernet can run approximately 100 meters (328 feet) using twisted-pair cabling. Using coaxial cable increases this distance to 500m (1640.4 feet).

For LANs, coaxial cable offers several advantages. It can be run with fewer boosts from repeaters for longer distances between network nodes than either STP or UTP cable. Repeaters regenerate the signals in a network so that they can cover greater distances. Coaxial cable is less expensive than fiber-optic cable, and the technology is well known; it has been used for many years for all types of data communication.

****************************************************************************References: www.123rf.com Cisco Press **************************************

05/16/2020

Compared to the multimode fiber, the single mode patch cords carry a higher bandwidth, but it requires a light source with a narrow spectral width. The single mode gives a higher transmission and up to 50 times more distance than the multimode. The core from a single mode cable is smaller than one from a multimode ****************************************************************************

05/15/2020

Category 1—Used for telephone communications. Not suitable for transmitting data.

Category 2—Capable of transmitting data at speeds up to 4 megabits per second (Mbps).

Category 3—Used in 10BASE-T networks. Can transmit data at speeds up to 10 Mbps.

Category 4—Used in Token Ring networks. Can transmit data at speeds up to 16 Mbps.

Category 5—Can transmit data at speeds up to 100 Mbps.

Category 5e —Used in networks running at speeds up to 1000 Mbps (1 gigabit per second [Gbps]).

Category 6—Typically, Category 6 cable consists of four pairs of 24 American Wire Gauge (AWG) copper wires. Category 6 cable is currently the fastest standard for UTP. ******************************************** Reference: Cisco Press. ********************************************

05/14/2020

Dressing Cables

05/14/2020

Cable dressing is critical in order to maintain neatness and reduce space usage and interference - [ ]

05/14/2020

Cable dressing is critical in order to maintain neatness and reduce space usage and interference

05/14/2020

Cable dressing is critical in order to maintain neatness and reduce space usage and interference - [ ]

05/14/2020

Cable dressing is critical in order to maintain neatness and reduce space usage and interference -

05/13/2020

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05/07/2020