Unit 3 Exercise 1 Nt1310

1332 Words May 28th, 2014 6 Pages
| Unit 3. Exercise 1. | | Specifications - Definitions |

| Unit 3. Exercise 1. | | Specifications - Definitions |

NT1310: physical networking

April 15, 2014
Authored by: Nicholas Rapisardi
NT1310: physical networking

April 15, 2014
Authored by: Nicholas Rapisardi

1. Application (in terms of cabling infrastructure): The application layer is the OSI layer closest to the end user, which means both the OSI application layer and the user interact directly with the software application. When determining resource availability, the application layer must decide whether sufficient network or the requested communication exists.. (OSI_model#Layer_7:_application_layer) 2. Unshielded twisted-pair: UTP cable is
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The whole thing is usually wrapped in another layer of insulation and, finally, in an outer protective layer. (/coaxial_cable.html) 7. Plenum: In building construction, a plenum (pronounced PLEH-nuhm, from Latin meaning full) is a separate space provided for air circulation for heating, ventilation, and air-conditioning (sometimes referred to as HVAC) and typically provided in the space between the structural ceiling and a drop-down ceiling. A plenum may also be under a raised floor. In buildings with computer installations, the plenum space is often used to house connecting communication cables. Because ordinary cable introduces a toxic hazard in the event of fire, special plenum cabling is required in plenum areas. (Lomas, 2005) 8. Riser: suitable for use inside walls and in open areas but not in places where air circulates, such as above suspended ceilings. Riser-rated cable is fire-resistant but can give off noxious fumes when overheated (/glossaries/riser-rated/4956753-1.html) 9. Rip Cord: Of an optical cable, a parallel cord of strong yarn that is situated under the jacket(s) of the Cable for the purpose of facilitating Jacket removal preparatory to Splicing or breaking out. (Rip-Cord.html) 10. Core: the conducting wire with its insulation in an