Modern Building Systems Flashcards
What is NID?
Network Interface Device.
Point at which the service provider terminates
What is a LAN?
Local Area Network.
Where the cabling radiates from the point of demarcation through a series of connection points and equipment
What are the three categories of telecommunication?
Voice - phone, modem, fax
Data - Local Area Network (LAN), Metropolitan Area Network (MAN), Wide Area Network (WAN), computers
Video - Cable TV (CATV), Closed Circuit TV (CCTV), Interactive video
What is physical topology?
The physical way that the cabling is setup in a network
What is logical topology?
The method of communication used by the network
What are the three basic topologies?
Star, Bus, Ring
What is a star topology?
-Central hub with all other network devices connected to that point.
-The hub/switch is at the physical, as well as logical centre of network.
-Devices connected each have their own dedicated line
What is a bus topology?
Freeway with difference access points, one length of cable connects all the network devices
What is a ring topology?
Connects all network devices in a circle. Each device has two connects, one from a device and one to a device (like series)
A structured cabling system has most or all of these components
Entrance facilities, equipment rooms, vertical and horizontal pathways and backbone cables, telecommunications closets, cross-connect facilities, horizontal pathways and cables, work area outlets
What are entrance facilities?
The connection point between the outside services and the onsite cabling.
What are equipment rooms?
Normally serves an entire building, specially built to house large telecommunications equipment in an environmentally controlled space.
Can also be called the main closet
What is the function of the equipment room?
-Terminate and cross connect backbone and horizontal cables.
-Provide work space for service personnel
-Serve as part of the entrance facility or telecommunications closet
-Storehouse for large pieces of equipment
What is vertical and horizontal cables?
Backbone of a structured cabling system. Provides interconnections between entrance facilities, equipment rooms, and telecom. closets
What are the main components of the backbone?
cable pathways, cabling, connecting hardware, misc support facilities like fire stopping and grounding
What are telecommunication closets?
Rooms that serve floors rather than entire buildings
What are the functions of the telecom closets?
-Point of term for horizontal and backbone cables
-Contain horizontal cross-connects
-Contain intermediate cross-connect points for different parts of backbone cabling system
-Provide controlled environment for telecom equipment and connecting hardware
What are cross-connects?
Connect horizontal and backbone cable. Used to attach multipart equipment connections to horizontal or backbone cabling
What are the three types of cross-connects?
Horizontal, Intermediate, and Main
What are the two types of physical cross-connections?
Copper jumpers, patch cords
What are horizontal pathways and cables?
Cable run from the work area to the telecom closet. Runs horizontally in floors or ceilings, routed to the horizontal cross connect in the telecom closet.
What is the max length for horizontal UTP cabling in horizontal cabling?
90m/295ft
What is the max length for cross connect jumpers and patch cords?
6m/20ft
What is the total length for patch cords and cross connect jumpers allowed in a horizontal channel?
10m/33ft