5.2 STRUCTURED BUILDING TELECOMMUNICATION SYSTEMS Flashcards
Prior to ________, End-users were frequently confused by manufacturers’ conflicting claims concerning TRANSMISSION performance and were forced to pay high installation and administration costs for __________ systems.
1991, proprietary
The __________________________ (EIA), ____________________ (TIA), and a large consortium of leading telecommunications companies worked cooperatively to create the _________________________ (ANSI)/TIA/EIA-__________ Commercial Building Telecommunications Wiring Standard.
Electronic Industries Association
Telecommunications Industry Association
American National Standards Institute
568-1991
The ANSI/TIA/EIA-568-1991 was revised in 1995, and is now referred to as ANSI/TIA/EIA-568- A Commercial Building Telecommunications _________ Standard.
– goal of these standards is to define ____________ a telecommunications cabling system that can support virtually any voice, imaging, or data application that an end-user chooses.
Cabling, structured cabling
_______________ is the medium through which voice and data move from one TELECOMMUNICATION DEVICE to another. Cabling _________ carries _________ or _________ signals to and from devices and equipment in a telecommunication system.
Telecommunication cabling, physically, electrical, optical
___________ is a passageway, and thus a path, for cable to travel when interconnecting devices, components, and equipment in a telecommunication system.
pathways
_____________ are typically a raceway, a channel, or trough designed
to hold wires and cables.
Pathways
( T/F)
Pathways can carry existing cable and does not allow additional
cabling to be installed to accommodate the addition of equipment or upgrades in technology.
F, it easily allow
_______________ is a generic term used to describe a main pathway or cabling media that interconnects a number of telecommunication devices.
backbone
Backbone is used to connect networks in a building or in separate buildings. ______________ is typically used for this type of backbone.
Fiber optic cable
______________ may be attached from the backbone to connect individual workstations.
Drop cables
A _______________ is the cabling, devices, and equipment that INTEGRATE the voice, data, video, and electronic management systems of a building.
structured cabling system
The ______________ is the cabling and pathways _________ of the building and caries telecommunication services to the building these includes:
• _______ carrying local exchange carrier (LEC) services
(e.g., outside telephone company)
• Internet service provider services
• ____________ telecommunication cable
(e.g., private phone network between buildings at a school campus or business park)
interbuilding backbone, outside
Cables
Private branch exchange
The _______________________ is an entrance to the building for both public and private network service cables. It includes the cables, connecting hardware, protection devices, and other equipment
needed to connect the ____________ backbone cabling to the backbone cabling in the building.
building entrance facility, interbuilding
In buildings with a finished floor area larger than _____________ ft² (1870 m²), a secured (locked), dedicated, _________ room is recommended for the building entrance. An industry standard is to allow __ ft² (0.1 m²) of ___-in (20-mm) plywood wallmountarea for each _______ ft² (19m²) area of finished floor area.
20,000, enclosed, 1 , 3/4, 200
Serves a building or multiple building in a campus or business park environment and the building entrance facilities
It is a room dedicated to provides a CONTROLLED ENVIRONMENT to the important equipments.
It is a centralized space for housing main telecommunications equipment.
Telecommunications Equipment Room
-DEDICATED ROOM ON EACH FLOOR in a building that houses INTERMEDIATE voice and data telecommunications equipment and related cable connections.
- serves as a location where JUNCTIONS between the backbone pathway and horizontal pathways are made at one or more patch panels.
- large buildings will have several ________________ and should be located in a space that is central to the work areas it serves.
Telecommunications Closet x2
-a MOUNTED hardware unit containing an assembly of rows of connecting locations in a communications system, called PORTS.
-located in a TELECOMMUNICATIONS CLOSET to serve as a type of switchboard-like device in a network.
patch panel
is receptacle that is a specific place for physically connecting a device or piece of equipment to another.
Port
a cable that is used to create a connection from one port in a patch panel to another port.
Patch Cord
____________ is the recommended closet size More than 1 telecommunications closet if area exceeds 90m or 940
squares meters.
10 ft x 12 ft
Two walls in a telecommunications closet should be covered with __ft high, ___ mm thick wood to attach equipment.
8, 20
Telecommunications closet should be stacked vertically
above each other or else __in horizontal conduit runs are
required with no more than ___ deg bends between pull
points.
4, 90
An industry standard is to provide at least three 4-in diameter sleeves (a stub of conduit through the floor) per 50000 ft-squared.
FACT
multiple telecommunications closets on a single floor
must be _______________.
interconnected
To prevent the spread of fire, provisions for a _______ are required in every opening that penetrates the telecommunications closet compartment (e.g., walls and floors).
firestop
- is located within a building telecommunications
system - it connects the entrance facilities /equipment room to the telecommunications closets for cabling that inter connects equipment’s and devices in the spaces
- it contains several backbone (main) cables that carry
the ___________ telecommunications TRAFFIC throughout
the building.
backbone pathway, heaviest
can hold any type or combination of ____________ media, but CABLING typically includes UTP, STP, and optical fiber cable.
backbone pathway, transmission
____________ distances are dependent on
the type of system, data speed, and the
manufacturer’s specifications for the system
electronics and the associated components used
(e.g., adapters, line drivers, and so)
backbone cabling
connect the backbone cabling entering the telecommunications closet with the terminal equipment in the work area (e.g., computers, data terminals, telephones, and so on).
Horizontal pathways
can include underfloor DUCTS embedded in concrete
decks or slabs, modular/cellular (raised) floors,
underground trench ducts, and raceways (e.g.,
conduits, cable trays, recessed molding).
horizontal pathways
The most commonly used horizontal pathway consists of cable bundles run from the telecommunications closet along _______ or cable trays suspended above a plenum ceiling.
J-hooks
All cables in horizontal
pathways should be
strung in a ______ topology
so cables directly link the
telecommunications
closet with each
telecommunications
outlet.
star
The ______________
system extends from the
work area (workstation)
outlet to the
telecommunications closet
and consists of horizontal
cabling, telecommunications
outlet, table terminations,
and cross-connections.
horizontal cabling
- An industry standard is to size horizontal pathways by providing __ in2 (645 mm2) of cross-section area for every ____ ft2 (9.3 m2) of
workspace area being served. - Easy access to the horizontal cabling is
desirable.
1, 100,
The ___________ is the space containing work station (terminal), equipment and components.
work area
