This document provides an overview of basic campus network design and structured cabling. It discusses network cabling systems, transmission media like twisted pair and optical fiber cables. It describes categories of unshielded twisted pair cables and their applications. The document outlines considerations for proper cable installation, including bend radius, tension, and termination. It also discusses components of structured cabling like patch panels, cable management, and documentation standards. The goal is to understand standard cabling processes and best practices for campus network design.

1. Basic Campus Network Design
Network Cabling System
Md. Abdul Awal
Network Engineer, BdREN
awal@bdren.net.bd
November 6, 2014
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 1

2. Objectives
● Getting a basic idea about network cabling
● Understanding Standard Cabling Process
● Getting familiar with Network Cabling BCP
● Discussing specific issues
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 2

3. Transmission Media
Transmission
Media
Guided
Coaxial Cable Twisted Pair Optical Fiber
Unguided
Microwave,
Radio etc.
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 3

4. Twisted Pair Cable
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 4

5. Twisted Pair Cable
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 5

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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 6

7. Types
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 7

8. Other Elements
● RJ45 Connector
● Faceplate
● Patch panel
● Cable Manager
● Overhead Pathway
● Cable Tie
● Accessories
● Tools
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 8

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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 9

10. Subsystems
● Entrance Facilities
● Equipment Rooms
● Backbone Cabling
● Horizontal Cabling
● Telecommunications Rooms
● Work-Area Components
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 10

11. Why Standard Cabling?
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 11

12. Why Standard Cabling?
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 12

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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 13

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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 14

15. Terminology
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 15
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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 16

17. Considerations
● Bend radius
● Bend radii is 4 times the cable diameter
● Too much bend loosen the twists, eventually lose
performance
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 17

18. Considerations
● Tension
● Pulling tension should not exceed 110 N (25 lb./ft.)
● Pulling too hard untwists the pairs, which can cause
transmission problems
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 18
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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 19

20. Horizontal Distance Limitation
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 20
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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 21

22. Common Framework for Rack
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 22

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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 23

24. Patch Panel
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 24

25. Overhead Pathway
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 25

26. Overhead Pathway
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 26

27. Documentation and Tagging
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 27

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)
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 28

29. Naming Scheme
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 29
SB-201-R01-WS12
Science Building
Room# 201
Rack# 01
Workstation# 12
01 02Port# 01

30. Naming Scheme
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 30
Science Building
Room# 201
Rack# 01
Patch Panel# 03
Port# 01

31. Naming Scheme
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 31
SB-201-R01-PP03-01
SB-201-R01-WS12-01

32. Cable Tagging
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 32

33. Putting It All Together
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 33
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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 34
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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 36
MCEF
TC01
TC02 TC03 TC11 TC12 TC21
TOxxTOxxTOxxTOxx TOxxTOxx
TOxxTOxxTOxxTOxx TOxxTOxx
TOxxTOxxTOxxTOxx TOxxTOxx

37. Putting It All Together
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 37
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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 38

39. Tools: Cable Tester
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 39

40. Tools: Stripper
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 40

41. Tools: Tie and Cutter
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 41

42. Tools: Labeler
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 42

43. Cable Installation BCP
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 43

44. Cable Installation BCP (Continues)
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 44

45. Cable Installation BCP (Continues)
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 45

46. Cable Installation BCP (Continues)
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 46

47. Cable Installation BCP (Continues)
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 47

48. Cable Installation BCP (Continues)
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 48

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
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 49

50. Discussion
Workshop on Basic Campus Network Design, UGC, Dhaka BdREN © 2014. All rights reserved 50
awal@bdren.net.bd