cabling unit 2-transmission media.ppt - donna …...n s t r structured cabling system e t w u c...
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NSSTTRR UNIT 2ETW
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UNIT 2
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NSSTTRR Topics in this UnitETW
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Topics in this Unit• American National Standards Institute W
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(ANSI)/ Telecommunications Industry Association (TIA) 568 standard
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( )• International Organization for
Standardization (ISO)/ InternationalABLCCAA
Standardization (ISO)/ International Elecrotechnical Commission (IEC) 11801 international standardL
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11801 international standard• National Electrical Code (NEC)
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• Discuss the role of different standard organizations
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Structured Cabling System
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NSSTTRR Structured Cabling SystemETW
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Structured Cabling System
• Problems with early cable systemsWORK
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Problems with early cable systems– Vendor specific
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– Upgrades required new systems– Simple moves required major
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reconfigurations– Several cable systems used for network L
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connections– Difficult and time consuming to
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gtroubleshoot
NSSTTRR Standards and Specifying OrganizationsETW
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Standards and Specifying Organizations• American National Standards Institute (ANSI)
– Mission is to encourage voluntary compliance with standards WORK
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g y pand methods
– Facilitates the development of these standardsIncludes a wide range of standardsK
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– Includes a wide range of standards
• Electronics Industries Alliance (EIA)– Represents a variety of electronics manufacturers
ABLCCAA
– Works in conjunction with the TIA
• Telecommunications Industry Association (TIA)Mi i i t t i l ti t St d d bliL
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– Mission is to represent issues relating to Standards, public policy and market development
– Membership manufactures all telecommunications equipmentG
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– Trade organization that consists of 1100 telecommunications and electronics companies
– TIA Committees
NSSTTRR Standards and Specifying OrganizationsETW
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Standards and Specifying Organizations
• Insulated Cable Engineers Association (ICEA)W
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(ICEA)– Goal is to produce cable specifications for
telecommunications electrical power and controlK
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telecommunications, electrical power, and control cables
– Important role in relation to standards for network ABLCCAA
cabling infrastructure• National Fire Protection Association (NFPA)
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– Founded to protect people, property and environment from fire damage
– Responsible for the development and publicationG
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Responsible for the development and publication of the National Electrical Code (NEC)
• Section 725 and 800 relate to data cabling
NSSTTRR Standards and Specifying OrganizationsETW
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• National Electrical Manufactures Association (NEMA)
Standards and Specifying Organizations
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(NEMA)– Promotes the standardization of electrical
components, power wires, and cablesK
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p , p ,• Federal Communications Commission (FCC)
– Has the power to regulate electrical ABLCCAA
p gcommunications systems in the US
– E.g. TV, radio, telephone, telegraph, cable, networksL
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networks• Underwriters Laboratories (UL)
Organization dedicated to product safety testingG
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– Organization dedicated to product safety testing and certification
– UL mark is applied to cabling worldwide
NSSTTRR Standards and Specifying OrganizationsETW
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Standards and Specifying Organizations
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– International organization of national specifications– Represents 130 countries around the world
• International Electrotechnical Commission (IEC)K
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• International Electrotechnical Commission (IEC)– Publishes specifications related to electrical,
electronic, and related technologiesABLCCAA
– Mission is to promote standards relating to electricity and electronics
I tit t f El t i l d El t i E i (IEEE)LING
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• Institute of Electrical and Electronic Engineers (IEEE)– Responsible for 30 % of all technical literature
publishedG
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published– Responsible for the development of over 800
specifications, e.g. 802.x Series
NSSTTRR Standards and Specifying OrganizationsETW
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• National Institute of Standards and Technology (NIST)
Standards and Specifying Organizations
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(NIST)– Goals are to include assisting in the improvement
and development of manufacturing technology, K
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product reliability and scientific discovery– Consists of 4 major programs - page 71
ABLCCAA
• International Telecommunications Union (ITU)– Mission is to study the technical and operations
issues relating to telecommunicationsLING
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issues relating to telecommunications – Publishes recommendations for specifications
• Canadian Standards Association InternationalG
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Canadian Standards Association International (CSA)– Similar to the UL in the US
NSSTTRR Standards and Specifying OrganizationsETW
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(ETSI)
Standards and Specifying Organizations
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(ETSI)– Mission is to determine and produce
telecommunications specifications and encourage K
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p gworldwide standardization
• Building Industry Consulting Services International (BICSI)A
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(BICSI)– Founded to support telephone company consultants
that are responsible for the design and i l t ti f i ti t kL
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implementation of communications networks– Offers a certification program called Registered
Communications Distribution Designer (RCDD)G
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g ( )• Occupational Safety and Health Administration (OSHA)
– Goal is to make all workplaces in the US safe
NSSTTRR ANSI/TIA/EIA-568-B Cabling StandardETW
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ANSI/TIA/EIA 568 B Cabling Standard
• First published in 1991 – ANSI/EIA/TIA-WORK
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568 -1991• Revised in 1995 – ANSI/TIA/EIA-568-AK
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Revised in 1995 ANSI/TIA/EIA 568 A• Purpose
E bli h bli ifi iABLCCAA
– Establish cabling specifications– Provide direction and design for L
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commercial organizations– Supports data and voice
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– Provide technical and performance guidelines
NSSTTRR ANSI/TIA/EIA-568-B Cabling StandardETW
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ANSI/TIA/EIA 568 B Cabling Standard
• Revised again in 2001 – ANSI/TIA/EIA-WORK
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g568-B to include the following amendments:
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– Propagation delay and delay skewCorrections to previous versionA
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– Corrections to previous version– Define bundled, hybrid, and composite
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cables– NEXT loss testing
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– Performance specifications for four-pair cable
NSSTTRR ANSI/TIA/EIA-568-B Cabling StandardETW
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ANSI/TIA/EIA 568 B Cabling Standard
• Subsystems of structured cablingWORK
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y g• Minimum requirements
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• Installations methods• Connector/ pin assignments
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• Life span – greater than 10 yrsMedia typesL
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• Media types• Recommended topology and distances
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• Definition of cabling elements
NSSTTRR ANSI/TIA/EIA-568-B Cabling StandardETW
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ANSI/TIA/EIA 568 B Cabling Standard
• Current breakdownWORK
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Current breakdown• 568-B.1 - General requirements
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• 568-B.2 – Balanced twisted-pair cabling components
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• 568-B.2-1 – Cat. 6 cabling568 B 3 Optical fiber cablingL
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• 568-B.3 – Optical fiber cabling components
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NSSTTRR ANSI/TIA/EIA-568-B CablingETW
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ANSI/TIA/EIA 568 B Cabling
• Supports seven standardsWORK
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Supports seven standards– Horizontal Cabling
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– Backbone cabling– Work area
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– Telecommunications room– Equipment roomL
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Equipment room– Entrance facility
Ad i i t tiG
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– Administration
NSSTTRR Subsystem of a Structured Cabling SystemETW
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Subsystem of a Structured Cabling System
• Horizontal CablingWORK
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– Cable from patch panel to work area– Telco outletsK
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Telco outlets– Cable terminations
C tiABLCCAA
– Cross-connections– One transition pointL
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– Maximum length – 100 meters• 90 meters for cableG
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• 10 meters for 2 patch cables
NSSTTRR Cross-ConnectionsETW
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Cross Connections
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NSSTTRR How Not To WireETW
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How Not To Wire
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How Not To WireETW
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NSSTTRR A Little Bit BetterETW
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A Little Bit BetterWORK
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NSSTTRR
Much BetterETW
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Subsystem of a Structured Cabling SystemETW
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y g y
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NSSTTRR Subsystem of a Structured Cabling SystemETW
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Subsystem of a Structured Cabling System
• Transition PointM lti t l i ti tl t bl (MUTOA)W
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– Multi-user telecommunications outlet assembly (MUTOA)– Consolidation Point (CP)
• Recognized MediaK
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– UTP or ScTP• 4pair, 100 ohm, 24 AWG, solid conductor twisted pair
Optical fiberABLCCAA
– Optical fiber• Two-fiber, 62.5/125-micron• 50/125 micronL
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• Telecommunications Outlets– One for voice , one for data– Must be wired to a standardG
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Must be wired to a standard• T568A• T568B
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Subsystem of a Structured Cabling SystemETW
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y g y
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NSSTTRR RJ45 568 Cable SpecsETW
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RJ45 568 Cable Specs
• Pair 1 – 4 & 5WORK
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• Pair 2 - 3 & 6• Pair 3 – 1 & 2K
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• Pair 4 - 7 & 8
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RJ45 A Specs
NSSTTRR Backbone CablingETW
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Backbone Cabling• Between equipment rooms and building-W
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q p gentrance facilities
• Between buildingsK
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• Vertical connections between floors• Grounding requirements
ABLCCAA
• Avoiding EMI/RFI• Cross-connects
T l l ll dLING
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– Two levels allowed– Main cross connect– Horizontal cross connectG
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Horizontal cross connect
NSSTTRR Backbone CablingETW
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Backbone Cabling
• 30 meters or less for equipmentWORK
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30 meters or less for equipment connections to backbone90 t t t l f b kb di tK
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• 90 meters total for backbone distance used for high-speed applications
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• Bridge taps or splices not allowed• May use greater than 4 pair if additionalL
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May use greater than 4 pair if additional requirements are meet, e.g. PSEXT
• Recognized Media Table 2 4G
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• Recognized Media – Table 2.4
NSSTTRR Backbone CablingETW
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Backbone CablingWORK
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NSSTTRR Cabling SubsystemETW
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Cabling Subsystem • Work AreaW
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Work Area– Where the horizontal cable terminates
Ad t b d t l t tl tK
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– Adapters may be used, external to outlet– Connects to station equipment
ABLCCAA
• Telecommunications rooms– Location where cabling components such asL
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Location where cabling components such as patch panels and cross connects are located
– Place where the horizontal cabling originatesG
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Place where the horizontal cabling originates– Contains hubs, switches, routers…etc.
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Cabling Subsystem• Entrance
FacilityWORK
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Facility– Point in the
building whereK
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building where cable interfaces with
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interfaces with the outside worldL
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– May share the space with the
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equipment room
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Cabling Subsystem
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animation
NSSTTRR Cabling SubsystemETW
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Cabling Subsystem
• Equipment roomWORK
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• Equipment room– Place that contains more sophisticated
equipment than the Telco room or theK
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equipment than the Telco. room or the entrance facilityBackbone cabling terminates in this roomA
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– Backbone cabling terminates in this room– May be Telco. and equipment room in small
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organizations– May house servers, routers, and telephone
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equipment
NSSTTRR Media & Connecting Hardware PerformanceETW
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Media & Connecting Hardware Performance
• 100 ohm -UTPWORK
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• Patch cables/Cross connect jumpers• Optical FiberK
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p– Multimode fiber
• 62.5/125 or 50/125 micronABLCCAA
– Single-mode fiber• 8.7/125 micron
O ti l T l i tiLING
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– Optical Telecommunications rooms• Must be able to terminate two fibers• Means for securing fiberG
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• Means for securing fiber• Store one meter of fiber
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NSSTTRR Anixter Cable Performance LevelsETW
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Anixter Cable Performance Levels
• Standards set by Anixter Corp to provide aWORK
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Standards set by Anixter Corp to provide a standard for Vendors
• Five levels of standard are:K
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• Five levels of standard are:– Level 1 – supports telephone voice grade use
Level 2 supports low speed dataABLCCAA
– Level 2 – supports low speed data – Level 3 – supports 10 Mbps Ethernet or 4/16
Mbps Token RingLING
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Mbps Token Ring– Level 4 - supports 20 MHz applications or 16
Mbps Token RingG
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Mbps Token Ring– Level 5 - supports 100 MHz
NSSTTRR Anixter Cable Performance LevelsETW
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Anixter Cable Performance Levels
• New levels forthcomingWORK
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New levels forthcoming– Level 5 - supports 200 MHz
Level 6 supports 350 MHzK
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– Level 6 - supports 350 MHz – Level 7 - supports 400 MHz
Al ll t t b tifi dABLCCAA
• Also, all components must be certified to the same level as the cable at these l lL
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levels • Enterprise Cabling Solutions
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NSSTTRR Other Cabling TechnologiesETW
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Other Cabling Technologies
• IBM Cabling SystemWORK
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IBM Cabling System• Avaya SYSTIMAX
DEC tK
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• DECconnect• NORDX/CDT
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NSSTTRR IBM Cable TypesETW
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IBM Cable Types
• Type 1AWORK
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Type 1A• Type 2A
T 3K
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• Type 3• Type 5
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• Type 6• Type 8L
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Type 8• Type 9
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NSSTTRR IBM Data ConnectorETW
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IBM Data Connector
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NSSTTRR Lab 2ETW
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Lab 2
• Use wire strippers wire cutters andWORK
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Use wire strippers, wire cutters and crimpers
• Make a 568B to 568B straight throughK
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• Make a 568B to 568B straight through cable using CAT 5 cableM k 568A t 568B t i ht th hA
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• Make a 568A to 568B straight through cable
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• Then test them to see if they work.
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