Network Media Information Sheet PDF

NETWORK MEDIA INFORMATION SHEET 2.1-1 www.facebook.com/itsmeismael  LEARNING OBJECTIVES After reading this INFORMATION SHEET, STUDENT(S) MUST be able to: Describe the primary types and uses of twisted-pair cables Describe the primar...

NETWORK MEDIA INFORMATION SHEET 2.1-1 www.facebook.com/itsmeismael  LEARNING OBJECTIVES After reading this INFORMATION SHEET, STUDENT(S) MUST be able to: Describe the primary types and uses of twisted-pair cables Describe the primary types and uses of coaxial cables Describe the primary types and uses of fiber-optic cables Describe the primary types and uses of wireless media Compare and contrast the primary types and uses of different media www.facebook.com/itsmeismael NETWORK MEDIA Network media is the actual path over which an electrical signal travels as it moves from one component to another. This information sheet describes the common types of network media, including twisted-pair cable, coaxial cable, fiber-optic cable, and wireless. www.facebook.com/itsmeismael TWISTED PAIR Twisted-pair cable is a type of cabling that is used for telephone communications and most modern Ethernet networks. www.facebook.com/itsmeismael UNSHIELDED TWISTED twisted pairs PAIR (UTP) UTP cable is a medium that is composed of pairs of wires UTP cable is used in a variety of networks. Each of the eight individual copper wires in UTP cable is covered by an insulating outer jacket material. www.facebook.com/itsmeismael  SHIELDED TWISTED PAIR It is a cable combines the techniques of shielding, cancellation, and wire twisting. twisted pairs Each pair of wires is wrapped in a metallic foil. The four pairs of wires then are wrapped in an overall metallic braid or foil. overall shield pair shields outer jacket www.facebook.com/itsmeismael  COAXIAL CABLE It is a cable used in the transmission of video, communications, and audio. However, these cables are also used in networks and what allow a broadband cable Internet connection using a cable modem. copper conductor braided copper outer jacket plastic shielding insulation www.facebook.com/itsmeismael PLENUM CABLE is the cable that runs in plenum spaces of a building. In building construction, a plenum is a separate space provided for air circulation for heating, ventilation, and air-conditioning (sometimes referred to as HVAC), typically in the space between the structural ceiling and a drop- down ceiling. www.facebook.com/itsmeismael  PLENUM AIRSPACE active/circulating forced-air supply plenum airspace working space of common commercial/enterprise building www.facebook.com/itsmeismael  NON-CIRCULATING AIR SPACE dead/non-circulating airspace forced-air supply forced-air supply working space of common commercial/enterprise building www.facebook.com/itsmeismael FIBER OPTIC CABLE is cable that contains optical fibers (usually glass) coated in plastic that are used to send data by pulses of light. outer jacket kevlar reinforcing materials glass fiber and cladding plastic shield www.facebook.com/itsmeismael  types of fiber-optic cable Single-mode fiber cable Multimode fiber cable allows multiple allows only one mode (or modes of light to propagate through the wavelength) of light to fiber. It is often used for workgroup propagate through the fiber. applications and intrabuilding applications It is capable of higher such as risers. It uses light-emitting diodes bandwidth and greater (LEDs) as a light-generating device. The distances than multimode, maximum cable length is 2 km (6561.7 and it is often used for feet). campus backbones. www.facebook.com/itsmeismael wireless communication Wireless communication uses radio frequencies (RF) or infrared (IR) waves to transmit data between devices on a LAN. For wireless LANs, a key component is the wireless hub, or access point, used for signal distribution.