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AESA
P.O BOX 348, YOUNG DEUNG PO, SEOUL KOREA TEL : +82-2-2631-3738 FAX : +82-2-2676-2458 E-MAIL : [email protected]
TECHNOLOGY TECHNOLOGY OF OF
LAN CABLELAN CABLE
AESA
P.O BOX 348, YOUNG DEUNG PO, SEOUL KOREA TEL : +82-2-2631-3738 FAX : +82-2-2676-2458 E-MAIL : [email protected]
CONTENTCHAPTER Ⅰ INTRODUCTION
CHAPTER Ⅱ LOCAL AREA NETWORK (LAN)
CHAPTER Ⅲ STRUCTURED CABLING SYSTEM (SCS)
CHAPTER Ⅳ OPTICAL FIBER CABLE
CHAPTER Ⅴ STANDARD
CHAPTER Ⅵ COPPER LAN CABLE DESIGN
CHAPTER Ⅶ LAN CABLE MANUFACTURING PROCESS
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CHAPTER Ⅰ
INTRODUCTION
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Historical AspectsSince 1985, telecommunication and computer industry were concerned with the lack of a standard for building telecommunications cabling system.In July of 1991, the first version of the standard was published as EIA/TIA 568.In August of 1991, TSB-36 was published with specifications of higher grades (Cat4 & Cat5) of UTP.Through several revisions, these were merged and revised to EIA/TIA 568A (October 1995), 568B (May 2001) & latest version for Cat6 ANSI/TIA/EIA-568-B.2-1 (June 2002).ISO has developed a cabling standard on an international basis under the title Generic Cabling for Customer Premises ISO/IEC 11801 (referred as class E cabling for Cat6).
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Reference StandardsEIA/TIA 568A (1995, today obsolete) : Commercial Building Telecommunications Cabling Standard
ISO/IEC 11801 :Generic Cabling for Customer Premises
TIA 568-B.2-1 (June 2002) :Commercial Building Standard for Telecommunications Pathways and Spaces
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Recent TendenciesIn 1998, TIA’s Commercial Building Cabling Systems Committee TR41.8.1 task group worked on improved cabling standard and issued PM3727 for the development of new standards for “Enhanced Cat5” & “Next Generation” Cabling systems.
Today, we work on Cat6 of ANSI/TIA/EIA-568-B.2-1 Draft 8 issued in June 2002.
In September 1997, JTC (Joint Technical Committee of ISO) decided to develop a new standard for Cat6 & 7.
IEEE 802.3ab Committee has developed a 1000 Base T Gigabit Ethernet Line Code in 1997 capable of transmit 250 Mbits/sec on each pair of 4 pair cable. Full Duplex for Cat5e. Today, for Cat6 full Duplex the data rate is 1000 Mbits.
DIN 44312-5 will form the basis for new high performance cable.
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Structured Cabling System
TIA/EIA
Building Entrance Equipment Room
Horizontal Cabling Backbone Cabling
Telecommunication Closet
Work Area
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System componentsThere can be optical fiber cabling system as well as copper cabling system.
Optical Fiber system can be discussed later.
There are several copper cabling systems. We will talk on 100 ohms structured cabling system mainly.
This system is a structured copper cabling system available in UTP, S-FTP, FTP or SSTP and conform to ISO/IEC-11801
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100 Ohms system
Full category 5e or 6 systems meet EIA/TIA 568 and ISO 11801
available in UTP, FTP or S-FTP
available with 110 or Krone LSA punch down terminations
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Cat5e
Components Range :
CablesPatch PanelsWall / Floor terminationsPatch cordsBalunsCross connectTools / accessories
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Cables (1)
UnscreenedUTP
Foil screenedFTP
Foil & Braid screenedS-FTP
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Cables (2)
Power Sum 25 Pairs
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Patch Panel (1)Patch Panels - Unscreened
16 Way 1U
24 Way 1U
32 Way 2U
48 Way 2U
110 IDCs or LSA IDCs
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Patch Panel (2)Patch Panels - Screened
16 Way 1U
24 Way 1U
32 Way 2U
110 IDCs or LSA IDCs
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Patch Panel (3)
Telco Patch Panels
24 PortFront View
Rear ViewTelco 4Rear View
Telco 8
RJ21X Sockets
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Connector (1)
110 Connector
LSA Connector
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Connector (2)
5
4
1
2
3
6
7
8
White/Blue
Blue
White/Orange
Orange
White/Green
Green
White/Brown
Brown
5
4
3
6
1
2
7
8
White/Blue
Blue
White/Orange
Orange
White/Green
Green
White/Brown
Brown
EIA/TIA 568A EIA/TIA 568B
Modular Jack Connection
1
2
3
4
5
6
7
8
IDC RearConnector
Position No
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Snap-in Jacks (1)
UMJ Style UTP 110UTP Krone
FTP Krone FTP 110
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Snap-in Jacks (2)
The snap-in jacks are designed to snap into floor and wall outlets compatible with the AMP Keystone standard.
The UMJ is used mostly for the US market where shuttered outletsare not required.
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Wall Outlets (1)
UK style faceplate
Snap-in jackUTP or FTP
Shuttered Module
Blanking Plates
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Wall Outlets (2)
Continental style face plates
Squareedged
Roundededge
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Wall Outlets (3)
Single port
Snap-in jackUTP or FTP
UK style shuttered faceplateDual port
UK style shuttered faceplate
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Wall Outlets (4)
US style face plate
UMJ Jack
Bezel
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Cable Management
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110 Cross ConnectCategory 5
up to 300 pair
wall or rack mounted
use for high density, low cost patching with infrequent changes
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110 Cross Connect…
RJ45jack
Connectingblock
S110jack
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Balun
CoaxBalun
TwinaxBalun
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Balun
Balun (BALanced - UNbalanced)
change from one cable media to another
main job is to convert cable impedance
allows existing co-ax based hardware to communicate via a Cat5e twisted pair cabling system
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System interconnection
