Equipo 2
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EQUIPO 2. EQUIPO 2. Cabling system components. EQUIPO 2. The cable. Horizontal Cables.

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EQUIPO 2

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Equipo 2

EQUIPO 2

EQUIPO 2

Cabling system components

EQUIPO 2


The cable

The cable


Horizontal cables

Horizontal Cables

  • Horizontal cables run between a cross-connect panel in a wiring closet and a wall jack, are most often implemented with 100-ohm, four-pair, unshielded twisted-pair (UTP), solid-conductor cables, as specified in the ANSI/TIA/EIA-568 Standard for commercial buildings.

  • The Standard also provides for horizontal cabling to be implemented:

    • 62.5/125-micron or 50/125-micron multimodeopticalfiber

    • 150-ohm shielded twisted-pair (STP) cable.(but does not recommend)


Backbone

Backbone

  • Can be implemented using 100-ohm UTP, 62.5/125-micron or 50/125- micron multimode optical fiber, or 8.3/125-micron single-mode optical cable. Neither 150-ohm STP nor coaxial cable is allowed.

  • Optical fiber is the preferred installation medium because of distance limitations associated with copper wiring. a fiber backbone is that glass does not conduct electricity and is thus not subject to electromagnetic interference (EMI)


Modular patch cables

Modular Patch Cables

  • Modular patch cables (patch cords) are used to provide the connection between field-terminated horizontal cables and network-connectivity devices and connections between the wall-plate jack and network devices.

  • Patch cords are made with stranded conductors because they are more flexible.

  • Problems with the patch cables:

    • The first challenge lies within the modular plugs themselves.

    • the untwisting and splitting of the pairs

    • the mechanical crimping process that secures the plug to the cable


Pick the rigth cable

Pick therigth cable

  • You must know the installation environment and what the applicable NEC and local fire-code requirements will allow regarding the cables’ flame ratings.

  • Your second decision on cabling must be on media type..

    • For fiber cable, you will need to specify single-mode or multimode, and if it is multimode, you will need to specify core diameter, i.e., 62.5/125 or 50/125.

    • For UTP cables, you need to specify the appropriate transmission-performance category.


Cabling pathways

Cablingpathways


Equipo 2

ANSI/TIA/EIA-569-A Commercial Building Telecommunications Pathways and Spaces Standard for concealing, protecting, and routing your cable plant.

Must be electrically grounded per the ANSI/TIA/EIA-607 CommercialBuildingGrounding and Bonding Requirements for Telecommunications.


Conduit

CONDUIT

Conduit is pipe. It can be metallic or nonmetallic, rigid or flexibleand it runs from a work area to a wiring closet.

Only40 percentfull by your current cable needs. Conduit should only be filled to a maximum of 60 percent, so this margin leaves you with room for future growth.


Cable trays

Cable Trays

Cable trays are typically wire racks specially designed to support the weight of a cable infrastructure.

Cables simply lie within the tray, so they are very accessible when it comes to maintenance and troubleshooting.


Raceways

Raceways

Raceways are special types of conduits used for surface mounting horizontal cables are mountedonthe outside of a wall in places where cable is not easily installed inside the wall.


Fiber protection systems

Fiber-Protection Systems

As with raceways, fiber-protection systems are special types of conduits and cable-management systems designed specifically to address the special protection needs of optical-fiber cable.

Although maintaining is important for all cable media, cable will eventual signal loss, which translates to lost data, troubleshooting, downed network connections, and lost productivity.


Conectores y terminales fijas

Conectores y terminales fijas


Wiring closets

Wiring Closets


Tia eia

TIA / EIA

  • ANSI/TIA/EIA-568-B

  • ANSI/TIA/EIA-569-A


Additional requirements

Additional requirements

  • There shall be a minimum of two dedicated 120V 20A nominal, nonswitched, AC duplex electrical-outlet receptacles, each on separate branch circuits.

  • There shall be a minimum of one room per floor to house telecommunications equipment/ cable terminations and associated cross-connect cable and wire.

  • Lighting shall be a minimum of 500 lx (50 footcandles) and mounted 2.6 m (8.5 feet) above the floor

  • There shall be a minimum door size of 910 mm (36 inches) wide and 2,000 mm (80 inches) high without sill, hinged to open outward or slide side-to-side or be removable,


Wall mounted brackets

Wall-Mounted Brackets

  • For small installations and areas where economy of space is a key consideration, wall-mountedbrackets may provide the best solution. Wall-mounted racks such as MilesTek’s Swing Gate wall rack in Figure 5.9 have a frame that swings out 90 degrees to provide access to the rearpanels and include wire guides to help with cable management.


Wall mounted brackets1

Wall-Mounted Brackets

wall-mount rack with cable management

Skeletal Frames


Wall mounted brackets2

Wall-Mounted Brackets

  • Full Equipment Cabinets

Shelves available for 19-inch racks


Electrical grounding

Electrical Grounding

  • Electrical Grounding

  • Cross-Connect Devices

  • The 66 Punch-Down Blocks


Modular patch panels

Modular Patch Panels


Fiber optic connector panels

Fiber-Optic Connector Panels

A fiber-optic connector panel

A consolidation point


Administration standards

Administration Standards

NOTE. Network administrators should be judged by the neatness of their wiring closets.


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