Presented in Basic Campus Network Design Workshop organized by BdREN on Nov 6, 2016.

1. Basic Campus Network Design
Network Cabling System
Md. Abdul Awal
Network Engineer, BdREN
awal@bdren.net.bd
November 6, 2014
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2. Objectives
● Getting a basic idea about network cabling
● Understanding Standard Cabling Process
● Getting familiar with Network Cabling BCP
● Discussing specific issues
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3. Transmission Media
Transmission
Media
Guided
Coaxial Cable Twisted Pair Optical Fiber
Unguided
Microwave,
Radio etc.
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4. Twisted Pair Cable
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5. Twisted Pair Cable
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6. UTP Cable Grades
Category Maximum
Rate
Cable
Type
Application
Cat 1 1 Mbps UTP Analog Voice, ISDN
Cat 2 4 Mbps UTP Voice and Low speed Data
Network
Cat 3 10 Mbps UTP, S/UTP Voice and Low speed Data
Network
Cat 4 16 Mbps UTP, S/UTP Token Ring
Cat 5 100 Mbps UTP, S/UTP Fast Ethernet
Cat 5e 1 Gbps UTP, S/UTP Gigabit Ethernet
Cat 6 1Gbps/10 Gbps UTP, S/UTP Gigabit Ethernet
Cat 7 10 Gbps S/STP Telephone, Full Motion Video
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7. Types
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8. Other Elements
● RJ45 Connector
● Faceplate
● Patch panel
● Cable Manager
● Overhead Pathway
● Cable Tie
● Accessories
● Tools
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9. Structured Cabling
● a method for creating an organized cabling system
that can be easily understood by
● The installers
● The network administrators
● Any other technicians who deal with cables
● Golden Rules: Planning is the key
● Look for a complete connectivity solutions
● Plan for future growth
● Maintain freedom of choice in terms of vendors
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10. Subsystems
● Entrance Facilities
● Equipment Rooms
● Backbone Cabling
● Horizontal Cabling
● Telecommunications Rooms
● Work-Area Components
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11. Why Standard Cabling?
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12. Why Standard Cabling?
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13. Design Goals
● Functionality: speed and reliability
● Scalability: ability to grow without major changes
● Adaptability: easily implements new technologies
● Manageability: facilitates monitoring and ease of
management
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14. Every Structured Cabling is Different
● The architectural structure of the Site/Building
● The manufacturer and products
● The function of the cabling installation
● The types of equipment the cabling installation will
support (present and future)
● The configuration of an already installed system
(upgrades and retermination)
● Customer requirements
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15. Terminology
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Backbone
Cabling
Closet
Or Rack Horizontal
Cabling
Work
Area

16. Considerations
● Cable pair twists
● When terminating cable, only strip back the cable sheath
1″. Keep pair untwists to a maximum of 0.5″
● If you lose the twists, you lose performance
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17. Considerations
● Bend radius
● Bend radii is 4 times the cable diameter
● Too much bend loosen the twists, eventually lose
performance
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18. Considerations
● Tension
● Pulling tension should not exceed 110 N (25 lb./ft.)
● Pulling too hard untwists the pairs, which can cause
transmission problems
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Max pulling tension = 25 lb/ft.
25 lb/ft.
or 110 N

19. Considerations
● Cinching
● Cinching cable bundles tightly causes stress and degrades
performance
● Tie cable bundles loosely. And never staple cables
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20. Horizontal Distance Limitation
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Cat 5e UTP Cable
Horizontal Cabling
Telecommunication Closet
Workstation
Work Area
Network Rack
I1
I2 I3
I4
I1 + I2 + I4 ≤ 10m
I3 ≤ 90m
I1, I2 = Equipment patch cord
I3 = Horizontal Cable
I4 = Work area patch cord

21. Cable Arrangement
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22. Common Framework for Rack
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23. Considerations
● Miscellaneous
● Use connecting hardware of the same category or higher.
So, if you’re using CAT6 cable, use CAT6 connectors
● Plan for 1-2 feet of slack cable behind wall outlets for
possible future reterminations
● Route your network cables away from power lines,
fluorescent lights, and industrial equipment
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24. Patch Panel
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25. Overhead Pathway
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26. Overhead Pathway
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27. Documentation and Tagging
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28. Naming Scheme
● Building (SB)
● Room (SB-201)
● Rack (SB-201-R01)
● Patch Panel (SB-201-R01-PP03)
● Workstation Outlet (SB-201-R01-WS12)
● Port (SB-201-R01-PP03-15)
● Cable (each end labeled with the destination port)
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29. Naming Scheme
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SB-201-R01-WS12
Science Building
Room# 201
Rack# 01
Workstation# 12
01 02Port# 01

30. Naming Scheme
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Science Building
Room# 201
Rack# 01
Patch Panel# 03
Port# 01

31. Naming Scheme
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SB-201-R01-PP03-01
SB-201-R01-WS12-01

32. Cable Tagging
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33. Putting It All Together
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Network
Core
Location
Network
Closet 1
Building 3
Network
Closet 2
Building 1
Network
Closet 3
Building 5
Building 4
Building 2
cat5e
fiber
cat5e
Cat5e
+ fiber
Cat5e
+ fiber
fiber
fiber
fiber
fiber

34. Putting It All Together
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SERVIZI
VANO
SCALE
ACCOGLIENZA
SALA
CONSULTAZIONE
SALA
PRESTITI
SALA
WIRELESS
FIRST FLOOR
UFFICI
BIBLIOTECA
VANO
SCALE
SALA
MACCHINE
SECOND FLOOR
MAGAZZINI DI CONSERVAZIONE
UFFICI O
AMMINISTRATIVO
VANO
SCALE
UFFICIO
TECNICO
THIRD FLOOR
UFFICIO
PERSONALE
UFFICIO
ACQUISTI
DIRIGENTE

35. Putting It All Together
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 35
SERVIZI
VANO
SCALE
ACCOGLIENZA
SALA
CONSULTAZIONE
SALA
PRESTITI
SALA
WIRELESS
PIANO TERRA
TC01
MC
TC02TC03
EF
MC
UFFICI
BIBLIOTECA
VANO
SCALE
SALA
MACCHINE
PRIMO PIANO
MAGAZZINI DI CONSERVAZIONE
UFFICI O
AMMINISTRATIVO
VANO
SCALE
UFFICIO
TECNICO
SECONDO PIANO
UFFICIO
PERSONALE
UFFICIO
ACQUISTI
DIRIGENTE
MCTC11
TC12
TC21
TC01EF
TC21
MC
MC Main cross Connect
EF Entrance Facility
TC01 Telecommunication Closet PT (Prestiti+Accoglienza)
TC02 Telecommunication Closet PT (Wireless)
TC03 Telecommunication Closet PT (Consultazione)
TC11 Telecommunication Closet PP (Biblioteca)
TC12 Telecommunication Closet PP (Magazzino)
TC21 Telecommunication Closet SP (all the Officies)
Backbone Pathway
Horizontal Pathway

36. Putting It All Together
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MCEF
TC01
TC02 TC03 TC11 TC12 TC21
TOxxTOxxTOxxTOxx TOxxTOxx
TOxxTOxxTOxxTOxx TOxxTOxx
TOxxTOxxTOxxTOxx TOxxTOxx

37. Putting It All Together
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FO link
router
SW P
SW CS
PP CS
MC
FO link
SW 01
PP 01
TC01
SW 02
PP 02
TC02
FO link
SW 21
PP 21
TC21
SW 03
PP 03
TC03
SW 11
PP 11
TC11
SW 12
PP 12
TC12
Third floor
Second floor
First floor

38. Tools: Crimper
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39. Tools: Cable Tester
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40. Tools: Stripper
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41. Tools: Tie and Cutter
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42. Tools: Labeler
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43. Cable Installation BCP
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44. Cable Installation BCP (Continues)
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45. Cable Installation BCP (Continues)
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46. Cable Installation BCP (Continues)
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47. Cable Installation BCP (Continues)
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48. Cable Installation BCP (Continues)
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49. Wrapping UP
● Plan for stable physical layer: Optimizes cost
● Use Cat 5e (Or Cat 6) UTP cable
● Use Straight-Through Cable (TIA/EIA - T568B)
● Maintain HLD and LLD or other documentation and
diagram
● Tag, Tag, Tag…
● Total horizontal distance is less than 100m
● Consider port concentration
● Plan for future expansion
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50. Discussion
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awal@bdren.net.bd