pt1420 unit 3
Application- a system, the transmission method of which is supported by telecommunications cabling.
Unshielded Twisted-Pair- A cable with multiple pairs of twisted insulated copper conductors bound in a single sheath.
Shielded Twisted-Pair- A cable surrounded by a twisted braid, foil or both and bound in a single plastic sheath containing balanced twisted-pair conductors that are individually shielded.
Fiber-optic Cable- is a cable made up of optical fibers that can transmit large amounts of information at the speed of light.
Dark Fiber- is an unused optical fiber available for use in fiber-optic communication.
Coaxial Cable- a cable that consists of a center wire surrounded by insulation and then a grounded shield of braided wire.
Plenum- a compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system.
Riser- is a designation for a type of cable run between floors fire-code rating for indoor cable that is certified to pass through the vertical shaft from floor to floor.
Rip Cord- a length of string built into optical fiber cables that is pulled to split the outer jacket of the cable without using a blade.
Core- is the central part of a single optical fiber in which the light signal is transmitted. The core is typically made up of glass or plastic.
Attenuation- a general term in the decrease in power from one point to another. The loss can be electrical signal or light strength.
Noise- is any extraneous signal that interferes with the desired signal normally present or in passing through the system.
Headroom- The number of decibels by which a system exceeds the minimum defined requirements.
ANSI- is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems and personnel.
NFPA- establishes and updates fire protection and prevention safeguards. The NFPA publishes national fire codes, standards, manuals, and
Unshielded Twisted-Pair- A cable with multiple pairs of twisted insulated copper conductors bound in a single sheath.
Shielded Twisted-Pair- A cable surrounded by a twisted braid, foil or both and bound in a single plastic sheath containing balanced twisted-pair conductors that are individually shielded.
Fiber-optic Cable- is a cable made up of optical fibers that can transmit large amounts of information at the speed of light.
Dark Fiber- is an unused optical fiber available for use in fiber-optic communication.
Coaxial Cable- a cable that consists of a center wire surrounded by insulation and then a grounded shield of braided wire.
Plenum- a compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system.
Riser- is a designation for a type of cable run between floors fire-code rating for indoor cable that is certified to pass through the vertical shaft from floor to floor.
Rip Cord- a length of string built into optical fiber cables that is pulled to split the outer jacket of the cable without using a blade.
Core- is the central part of a single optical fiber in which the light signal is transmitted. The core is typically made up of glass or plastic.
Attenuation- a general term in the decrease in power from one point to another. The loss can be electrical signal or light strength.
Noise- is any extraneous signal that interferes with the desired signal normally present or in passing through the system.
Headroom- The number of decibels by which a system exceeds the minimum defined requirements.
ANSI- is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems and personnel.
NFPA- establishes and updates fire protection and prevention safeguards. The NFPA publishes national fire codes, standards, manuals, and