Structure Cabling System Design

1. STRUCTURE CABLING
SYSTEM DESIGN
1

2. Designing
Premises Cabling Systems
2

3. Structured Cabling Systems
Network Specific Cabling System
A specified cabling system designed to be
installed according to a manufacturer's or
network’s standard set of rules. i.e.. IBM
Cabling Systems and IEEE 802.3, 10 Base 2
Open Cabling System
A generic telecommunications cabling system
for commercial buildings that will support a
multiproduct, multivendor environment
3

4. Cabling Systems Design
Decision Tree
Influence Identify
Executive
Management Applications
(Cost)
Software
Hardware
Network Platform
Mid-level
Management Physical Plant
(Performance)
4

5. DNA
Distributed Network Architecture
Work Area
Telecommunications
Closet
Work Area
Telecommunications
Closet
Work Area
Equipment Room/
Entrance Facility
5

6. DNA
Distributed Network Architecture
Telecommunications Closet
Max 90 m
Max 500 m (fiber)
Telecommunications Closet
Equipment Room
Server
6

7. DNA
Advantages/Disadvantages
• Advantages
− Ideal for large buildings and multi-building campuses
− Based upon TIA/EIA & ISO Standard Architecture
− Low fiber count backbones
• Disadvantages
− Electronics are distributed
− MAC’s are more complicated
− Administration time and costs are high
− Port utilization and efficiency typically poor
7

8. CNA
Centralized Network Architecture
Single User
or
Zone
Splice or
Interconnect
Pull-Through
Cables
Centralized Cross-
Connect/Electronics
8

9. CNA
Centralized Network Architecture
Telecommunications
Closet ? Max 300 m total (fiber)
Interconnect or splice
Equipment Room
Server
9

10. CNA
Advantages/Disadvantages
• Advantages
− MAC’s are much easier and less costly
− Administration time and costs are lower
− Increased port utilization and efficiency
− Based upon TIA/EIA TSB-72
− Less space utilized in Telecommunications closets
− Quick path for network migration
− Fewer points of failure
• Disadvantages
− Initial installation costs
− Higher cost of optical electronics
− Perceived single point of failure
10

11. Home Run Cabling
Telecommunications
Closet
Single-User
Cable & Outlets
•Splice or Pull Thru
for CNA
•Cross Connect and
Electronics for DNA
11

12. Zone Distribution Cabling
MUO
CP
12

13. Zone Distribution
Advantages/Disadvantages
• Advantages
− Reduced costs over life of cabling due to less re-cabling
− cabling from TC to distribution point stays permanent
− Faster MACs
− Less office disruption
− Less down-time and productivity loss during MACs
• Disadvantages
− Initial installation costs
− Perceived lower performance due to additional connection
point
13

14. Architectures
Zone
DNA
or Zone
CNA
Home Run
Equipment Room/
Entrance Facility
14

15. MHz vs. Mbps
100 MHz is NOT the same as 100 Mbps
• Bandwidth (MHz) is:
− The frequency range across which components and systems are
specified
− Not based on a particular application or data rate
• Data Rate (Mbps) is:
− How fast you can pump data through a system with a given
bandwidth
− Dependent on the application and encoding scheme
15

16. MHz vs. Mbps
Frequency = 1 Car /sec (Hertz)
A B Transferred Data = 1 Bits /sec (Bps)
Frequency = 2 Car /sec (Hertz)
A B Transferred Data = 2 Bits /sec (Bps)
Frequency = 2 Car /sec (Hertz)
A B Transferred Data = 6 Bits /sec (Bps)
Frequency = 2 Car /sec (Hertz)
A B Transferred Data = 12 Bits /sec (Bps)
16

17. Media Options
• Unshielded Twisted Pair
− Categories 3/4/5/6
• Shielded Twisted Pair
− Categories 3/4/5/6/7
− FTP, S-FTP or PiMF
• Optical fiber
− Multi-mode
− 62.5/125 or 50/125
− Singlemode
17

18. Evolving Horizontal
Platform Cabling Platforms
Bandwidth 1.2 Gbps ATM ? Data Rate
MHz Mbps
1000 1000BASE-T 1000
622 Mbps ATM ?
155 Mbps ATM
100 100
100BASE-Tx
10 16 Mbps
10BASE-T Token
? 10
Ring
CAT3 CAT4 CAT5 CAT X
1 1
1984 1988 1992 1996 2000
18

19. Evolving Backbone
Network Cabling Platforms
Bandwidth Data Rate
MHz•km Mb/s
? 10,000
SM
2.5 Gpbs
500 ATM 1,000
1000 Base-F
?
1.2 Gpbs ATM
MM FDDI 622 ATM 100
160 155 ATM
Fast
Ethernet 10
10BASE-F
1984 1986 1988 1994 1997 2000
19

20. Media Selection Criteria
Networks Initial Long Term
EMC Distance Bandwidth
Supported Cost Cost
UTP Good Good Good Good Best Good
STP Better Good Better Better Better Better
Optical Best
Best Best Best Best Good
Fiber
20

21. Standards Bodies
ISO
CENELEC AS/NZS ANSI IEC CSA
TIA EIA
EN50173 AS/NZS 3080 TIA/EIA-568A ISO/IEC 11801 CSA T 527
AS 3084 TIA/EIA-569 CSA T 530
AS/NZS 3085 TIA/EIA-606 CSA T 529
TIA/EIA-607 CSA T 528
21

22. Star Topology
MC/CD
IC/BD
(optional)
HC/FD
Backbone Cabling Horizontal Cabling Work area
22

23. Cross-Connects/Distributors
Main Cross-Connect/
Campus Distributor
Intermediate Intermediate
Cross-Connect/ Cross-Connect/
Building Distributor Building Distributor
Horizontal Horizontal
Cross-Connect/ Cross-Connect/
Floor Distributor Floor Distributor
23

24. Elements/Sub-Systems
• Work Area
• Horizontal Cabling
• Telecommunications Closet
• Backbone Cabling
• Equipment Room
• Entrance Facility
• Administration
24

25. Work Area, Horizontal Cabling,
Telecommunications Closet
25

26. Backbone Cabling
26

27. Equipment Room
27

28. Entrance Facilities
28

29. Elements/Sub-Systems - Administration
• Work Area
• Horizontal Cabling
• Telecommunications Closet
• Backbone Cabling
• Equipment Room
• Entrance Facility
• Administration
29

30. Telecommunications Outlet
Placement Requirements
WA
1m/3 ft.
HC/FD X
TC
30

31. Telecommunications Closet
Placement Requirements
1000 m2/
10,000 ft2
31

32. Telecommunications Closet
Design Considerations
• Size • Lighting
• Clearances • AC Power
• Floor Loading • Physical
• Closet Construction
Penetrations • Dust Protection
• Security • Finish Color
• Fire Protection • Grounding
• Environmental
Control
32

33. Equipment Room
Placement Requirements
TC TC
HALLWAY ER
TC
ELEV.
SHAFT
MPOP
LEC
33

34. Equipment Room
Design Considerations
• Size • AC Power
• Clearances • Physical
• Floor Loading Construction
• Closet Penetrations • Dust Protection
• Security • Finish Color
• Fire Protection • Grounding
• Environmental
Control • Water Infiltration
• Lighting • EMI Protection
• Noise
34

35. Horizontal
Cabling System
35

36. TIA/EIA 568A Sub-system
HORIZONTAL CABLING
36

37. Horizontal Cabling
100(120)Ω CAT 3
WA
TP
100(120)Ω CAT 5
TP 150Ω STP-A
62.5(50)/125µ FIBER HC/FD
WA
37

38. Horizontal Media Considerations
UTP/FTP
Consider bandwidth, Shielded Twisted Pair
architecture and budget
for this one. fiber
38

39. Horizontal Media
Media Conductor Connector
Bandwidth
Type Construction Type
100Ω/120Ω 24 AWG Solid up to 8-Position
CAT 3 UTP (patch - stranded) 16 MHz IDC
100Ω/120Ω 24 AWG Solid up to 8-Position
CAT 5 UTP (patch - stranded) 100 MHz IDC
22 AWG Solid
up to 4-Position
150Ω STP-A (patch - 26 AWG
300 MHz Data
stranded)
62.5/125µm up to Duplex
OPTICAL Multi-mode 500 MHz-km 568SC
FIBER 50/125µm
SC-D
Multi-mode
Enhanced CAT 5 CAT6 (250 MHz) CAT 7 (600 MHz)
39

40. Horizontal Cabling
CONNECTORS UTP/FTP
PAIR 2
PAIR 3 PAIR 1 PAIR 4 1 T3 (WHT/GRN)
2 R3 (GRN/ WHT)
1 2 3 4 5 6 7 8 3 T2 (WHT/ORG)
CAT 3 4 R1 (BLU/ WHT)
5 T1 (WHT/BLU)
8-POSITION CAT 4 6 R2 (ORG/WHT)
7 T4 (WHT/BRN)
MODULAR 8 R4 (BRN/ WHT)
CAT 5 T 568 A
JACK
PAIR 3
PAIR 2 PAIR 1 PAIR 4 1 T2 (WHT/ORG)
2 R2 (ORG/ WHT)
1 2 3 4 5 6 7 8 3 T3 (WHT/GRN)
4 R1 (BLU/ WHT)
5 T1 (WHT/BLU)
6 R3 (GRN/WHT)
7 T4 (WHT/BRN)
8 R4 (BRN/ WHT)
8- POSITION MODULAR PLUG T 568 B
(AT&T 258A)
40

41. Horizontal Cabling
CONNECTORS FIBER OPTIC
DUPLEX SC
CONNECTORS
62.5/125 FIBER
568 SC BULKHEAD
CONNECTOR
41

42. Horizontal Bandwidth and Media
Signaling Cable Minimum
Network Type
Bandwidth Pairs Media
10 BASE-T 10 MHz 2 CAT 3
Token Ring 4MHz/16MHz 2 CAT 3
100BASE-TX 31.25 MHz 2 CAT 5
155 Mbps ATM 77.5 MHz 2 CAT 5
1000BASE-T 62.5 MHz 4 CAT 5?
1.2 Gbps ATM ? ? ?
42

43. Horizontal Distances
6m 90 m 3m
43

44. Horizontal Pathways
UTP/FTP INSTALLATION PRACTICE
Cable, connectors, and patch cords of same category or higher.
Untwist of cable pairs <13 mm (0.5 in.) for category
5 applications.
Maximum pulling tension for 4 pair 24 AWG (0.5 mm)
should not exceed 110 N (25 lbf) .
Elimination of cable stress caused by tension in suspended
cable runs and tight clinched cable bundles (cable ties).
Bend radius > four times the cable diameter for 4 pair UTP
and > ten times the cable diameter for multi-pr UTP cable.
FTP cable shield must be grounded to the Telecommunication
Grounding Busbar.
44

45. Horizontal Pathways
FIBER OPTIC INSTALLATION PRACTICE
Maximum Pulling Force Should Be Marked on
Cable Reel by Manufacturer
Average pull tension is 200 lbs.
No less than 20 times the diameter when pulling cable
No less than 10 times the diameter when placed
Cabling Must Be Polarized
Cabling Shall Be Tested for Polarity and
Attenuation
45

46. Telecommunications Outlet Elevation
46

47. AMP Angled Faceplate With Shutter Cover (UK version)
47

48. Telecommunications Outlet Pathway Elevation
48

49. Telecommunications Closet
TYPICAL FLOOR LAYOUT
Area B Area C
530 m 530 m
(5,300) ft Telecommunications Telecommunications (5,300) ft
Closet B Closet C
75 uit
(3" m o nd
) m Core Area
m mC
Co
nd 75 ")
uit (3
Area A Telecommunications
Closet A
800 m
(8,000) ft
49

50. Telecommunications Closet
TYPICAL CLOSET DESIGN 100mm
(4") 25-100mm
(1-3") Max
Typical Conduit
Sleeve Through
Floor
Ladder Rack (Above Relay Racks) Equipment
Power
Power 20mm (3/4 )
Equipment Bar Instrument Power
Power Power Bar Plywood
Front
Front
Backboard
Rear 1m (39" Plus) Aisle Rear
(Equipment Repair Distribution
and Install) Facilities
90 19" Equipment 19" Equipment to Offices
W 0m Rack Ceiling Rack
ith m
Lo (36 Fluorescent Ceiling Level
c k ") Fixture Ladder Rack
Ex x18
t e 00 Ceiling Ceiling
rn m Closet
al m Fluorescent Fluorescent
ly (7 Interconnecting
O 2" Fixture Fixture
pe ) Conduit
ne Do
d or (Fire Stopped)
O
nl
y 3x100mm (4") Sleeves Ceiling Level
(Minimum) Ladder Rack
Distribution 20mm (3/4 )
Facilities Plywood
to Office Backboard
50

51. Telecommunications Closet Elevation
51

52. Telecommunications Closet Rack Elevation
52

53. Nanyang Primary School
19” Rack Cabinets Layout - LAN Room 1
RACK 1 Wit h Full Load Points
42RU
41RU L1R1-CS01
40RU
39RU
38RU L1R1-ES01
37RU
36RU
35RU L1R1-ES02
34RU UPS to E quipm ent
33RU L1 R1- UPS2
32RU L1R1-ES03
Rack1
31RU
L1 R1- CS01
30RU
L1 R -E
1 S01
29RU L1R1-ES04
L1 R -E
1 S02
28RU
27RU L1 R -E
1 S03
26RU L1R1-ES05 L1 R -E
1 S04
25RU L1 R -E
1 S05
24RU L1R1P01
23RU L1R1P02
22RU
21RU L1R1P03 Unit Wt(Kg) / Unit Weight
20RU L1R1P04 FTP Points per Rack 115 0 0
19RU Jack Panel 8 1 8
18RU L1R1P05 Cable Management 10 1 10
L1R1P06
17RU Fiber Junction 2 2
16RU 3COM CB3500 1 13.2 13.2
15RU L1R1P07 3COM SSII 3300 5 4.4 22
14RU L1R1P08 SU30005U (UPS) 2 58.6 117.2
13RU 19" Rack 1 48 48
12RU Total Weight - - 220.4
11RU L1R1-BP2
10RU
9RU APC L1R1-UPS2
8RU Battery Pack
7RU 3000
6RU L1R1-BP1
5RU
4RU APC L1R1-UPS1
3RU Battery Pack
2RU 3000
1RU
1 Rack Unit (RU) = 44.45 mm (1.75”) 31-08-99
53

54. 54

55. Horizontal Cabling Floorplan
55

56. Horizontal Exercise
CABLE LENGTH CALCULATION
LL
SL
( SL + LL+ 4CH X # WS ) + 15%
2
56

57. Project Nam e [Company Name]
[Address 1]
[Address 2]
Contact Nam e [Customer Name]
Phone # [Customer Phone #] * Markup % Labor Rate
0
Marku Labor Labor
Mfg P/N Description Qty Cost $ U/M X-Cost $ p% X-Price $ Rate Hrs X-Labor $ Line Total $
57249-4 24/4 CAT5 GRAY PLENUM CABLE (VOICE) 113 $200.00 M/FT. $22,600.00
57249-2 24/4 CAT5 WHITE PLENUM CABLE (DATA) 108 $200.00 M/FT. $21,600.00
557505-4 4 PORT FLUSH FACEPLATE GRAY 250 $1.41 EA. $352.50
558357-4 4 PORT FUNITURE FACEPLATE GRAY 350 $1.76 EA. $616.00
557626-4 BLANK INSERT GRAY 1200 $0.24 EA. $288.00
AMP110W SEMTRON WALL PHONE FACEPLATE 24 $1.95 EA. $46.80
569012-3 RJ45 CAT5 568A INSERT ORANGE 600 $4.15 EA. $2,490.00
569012-5 RJ45 CAT5 568A INSERT GRAY 624 $4.15 EA. $2,589.60
558843-1 110/300 PAIR WIRING BLOCK 10 $24.10 EA. $241.00
558401-1 110/4 PAIR CONNECTING BL0CK 624 $0.40 EA. $249.60
558417-1 110 DESIGNATION STRIP HOLDER 60 $0.25 EA. $15.00
569431-1 110 CABLE MANAGEMENT RING 10 $7.00 EA. $70.00
557862-1 48 PORT CAT5 568A PATCH PANEL 15 $164.20 EA. $2,463.00
559366-1 1.75" HORIZONTAL MANAGEMENT PANEL 20 $41.00 EA. $820.00
557548-1 CABLE SUPPORT BAR 20 $11.40 EA. $228.00
559396-1 PRO SYSTEM RACK W/MANAGEMENT 5 $503.25 EA. $2,516.25
CADDY MP1 MP1 CUT-IN RING 149 $0.56 EA. $83.44
558048-6 3 FT. CAT5 PATCH CORD BLACK BOOT 200 $3.51 EA. $702.00
X-Cost $ X-Price $ Hours X-Labor $ Line Total $
Line Totals
57

58. Horizontal Pathways
• Underfloor Systems
− Underfloor Duct
− Cellular Floor
• Access Floor Systems
• Conduit Systems
• Cable Trays and Wireways
• Ceiling Pathways
• Perimeter Pathways
• Miscellaneous Pathways
58

59. Horizontal Pathways
UNDERFLOOR DUCT
Concrete
Two Level
Flushduct TC
Multichannel
Raceway
Feeder Duct
Junction Box
Distribution
Duct
59

60. Horizontal Pathways
CELLULAR FLOOR
TYPES
Steel TC
Concrete
Power
Voice
Trough
Data
60

61. Horizontal Pathways
ACCESS FLOOR
TYPES TC
Stringered
Free Standing
Cornerlock
MINIMUM HEIGHTS
General Office Areas = 150mm (6")
Computer Area or Plenum = 300mm (12")
61

62. Horizontal Pathways
CONDUIT SYSTEMS
TYPES Pull Box
Metallic Tubing
TC
Rigid Metal
Rigid PVC
- Length no more than 30 meters
or contain more than two 90o bends
62

63. Horizontal Pathways
CEILING PATHWAYS
Plenum Space TC
Suspended
Ceiling
Utility Columns
63

64. Horizontal Pathways
PERIMETER PATHWAYS
TYPES
Surface Raceway
Recessed Raceway
Molding Raceway
Multichannel Raceway
10 x 10
64

65. Horizontal Pathways
CABLE TRAYS AND WIREWAYS
TYPES
Ladder Cable Tray
Solid-Bottom Cable Tray
Ventilated or Trough Cable Tray
Wireway
Channel Cable Tray
65

66. Backbone
Cabling System
66

67. Structured Cabling Systems
BACKBONE CABLING
Bldg 3
Entrance
Closet Telco
Closet
Bldg 2
Telco Intermediate
Closet Cross Connect
Main Cross
Connect
67

68. Backbone Cabling
TC ER
HC/FD UTP
STP-A
TC TC Optical Fiber
HC/FD IC/BD MC/CD
68

69. Structured Cabling Systems
BACKBONE CABLING TOPOLOGY
LEGEND
CROSS CONNECT X
ENTRANCE FACILITY EF
EQUIPMENT ROOM ER
INTERMEDIATE CROSS CONNECT IC
MC MAIN CROSS CONNECT MC
TELECOMMUNICATIONS CLOSET TC
ER BACKBONE WORK AREA WA
HORIZONTAL CROSSCONNECT HC
CABLING
MECHANICAL TERMINATION
BACKBONE
SPLICE
CABLING IC
TELECOMMUNICATIONS OUTLET
ER
BACKBONE
BACKBONE
CABLING
CABLING
HC HC HC HC HC HC
HORIZONTAL
CABLING
WA WA WA WA WA WA
69

70. Backbone Media Considerations
UTP/FTP
Consider bandwidth, Shielded Twisted Pair
architecture and budget
for this one. fiber
70

71. Backbone Media
Media Conductor Connector
Bandwidth
Type Construction Type
100Ω/120Ω 24 AWG Solid up to 8-Position
CAT 3 UTP (patch - stranded) 16 MHz IDC
100Ω/120Ω 24 AWG Solid up to 8-Position
CAT 5 UTP (patch - stranded) 100 MHz IDC
22 AWG Solid
up to 4-Position
150Ω STP-A (patch - 26 AWG
300 MHz Data
stranded)
62.5/125µm up to Duplex
OPTICAL Multi-mode 500 MHz-km 568SC
FIBER 50/125µm
SC-D
Multi-mode
Enhanced CAT 5 CAT6 (250 MHz) CAT 7 (600 MHz)
71

72. Backbone Distances
HC/FD A MC/CD EP
C
HC/FD B IC/BD
MEDIA A B C
UTP voice 800 m/2624ft 500 m/1640ft 300 m/984ft
UTP data 90 m/295ft
STP-A 90 m/295ft
Multimode Fiber 2000 m/6560ft 500 m/1640ft 1500 m/4920ft
Singlemode Fiber 3000 m/9840ft 500 m/1640ft 2500 m/8200ft
72

73. Structured Cabling Systems
BACKBONE CONNECTOR SELECTION
EIGHT POSITION MODULAR JACK AND PLUG
4 POSITION DATA CONNECTOR
DUPLEX SC FIBER CONNECTOR
73

74. Backbone Planning
• Sizing per number of strands/pairs
• Sizing per bandwidth
• Intrabuilding Routing
− Riser
• Interbuilding Routing
− Underground
− Buried
− Aerial
• Fault Tolerance/Redundancy
74

75. Backbone Sizing - Counts
COPPER PAIRS/
NETWORK TYPE FIBER STRANDS
10 BASE-T 2
Token Ring RING IN - 2 / RING OUT -2
100BASE-T/SX/LX 2
FDDI DAS - 4 / SAS - 2
155 Mbps ATM 2
1000BASE-T 4/2
1.2 Gbps ATM ?
75

76. Optical Fiber Bandwidth and Length
Specifications
Network Bandwidth.Km Maximum Length
Fiber Type Platforms (850nm/1300nm) (850nm/1300nm)
10-100 Base T/155 Mpbs ATM 160/500 2000m/2000m
62.5/125 622 Mbps ATM 160/500 300m/500m
1000 Base T/1.2 Gbps ATM 160/500 220m/550m
2.5 Gbps ATM 160/500 100m/300m
10-100 Base T/155 Mbps ATM 500/500 2000m/2000m
50/125 622 Mpbs ATM 500/500 500m/2000m
1000 Base T/1.2 Gbps ATM 500/500 550m/550m
2.5 Gbps ATM 500/500 300m/300m
Network Bandwidth.Km Maximum Length
Fiber Type Platforms (1310nm/1550nm) (1310nm/1550nm)
Single Mode All Platforms Virtually Unlimited 3000m/3000m
76

77. Backbone Routing
77

78. Backbone Intrabuilding Pathways
SLOTS AND SLEEVES
Backbone 100mm
Cable (4") 25-100mm
(1-3") Max
Cable
Strap 25mm
(1")
mm
00
1 ")
(4
mm
00 " )
3 2 Sleeve
(1
Floor
Slot
78

79. Intrabuilding Riser Routing
3-bolt Clamp
110 Panel
D-Rings or Straps
Conduit Sleeve
Conduit Sleeve
110 Panel
Strand
79

80. Intrabuilding Backbone
VERTICAL BACKBONES
IC OR TC
IC OR TC
IC OR TC
MC OR IC
80

81. Intrabuilding Backbone
DESIGNING VERTICAL BACKBONES
IC OR TC OPTIONAL
FAULT
TOLERANT
IC OR TC
IC OR TC
MC OR IC
81

82. Intrabuilding Backbone
VERTICAL/LATERAL BACKBONES
TC TC
6th Floor
TC Conduit TC
5th Floor
TC TC
4th Floor
100mm (4") TC TC
Conduit 3rd Floor
100mm (4") 100mm (4")
TC TC
Sleeves Sleeves
2nd Floor
100mm (4")
TC TC
Conduit
1st Floor
100mm (4")
Telecom. }
Equipment
Conduit Room
82

83. Intrabuilding Riser Schematic
83

84. Interbuilding Backbone
TIA/EIA 568A
LEGEND
BUILDING 1 CROSS CONNECT X
TC ENTRANCE FACILITY EF
TC EQUIPMENT ROOM
INTERMEDIATE CROSS CONNECT
ER
IC
MAIN CROSS CONNECT MC
TELECOMMUNICATIONS CLOSET TC
WORK AREA WA
MECHANICAL TERMINATION
TC
TO LOCAL EXCHANGE EF MC SPLICE
TELECOMMUNICATIONS OUTLET
CARRIER ER ER
IC TC
ER
INTERBUILDING BACKBONE CABLING
IC TC TC TC
ER
BUILDING 3
TC TC
BUILDING 2
84

85. Interbuilding Backbone
FAULT TOLERANT DESIGN
LEGEND
BUILDING 1 CROSS CONNECT X
TC ENTRANCE FACILITY EF
TC EQUIPMENT ROOM
INTERMEDIATE CROSS CONNECT
ER
IC
MAIN CROSS CONNECT MC
TELECOMMUNICATIONS CLOSET TC
WORK AREA WA
MECHANICAL TERMINATION
TC
EF MC SPLICE
TO LOCAL TELECOMMUNICATIONS OUTLET
EXCHANGE CARRIER ER ER
IC TC
ER
IC TC TC TC
ER
TC FAULT TOLERANT BACKBONE BUILDING 3
TC
BUILDING 2
85

86. Interbuilding Backbone Pathways
86

87. Underground
87

88. Direct Buried
Warning tape
Sand
Cable 88

89. Aerial
89

90. Interbuilding Pathway Variables
− applicable codes
− aesthetics of building and surrounding location
− type and use of building
− future growth
− difficulty of adding pathways in the future
− type, size, length, and number of cables to be
installed
− separation from electrical facilities
− physical possibilities (ground topologies, soil
conditions, obstructions)
− an alternate entrance
− use of corrosion resistant pathways and
associated hardware
90

91. Interbuilding Backbone Pathway #1
91

92. Interbuilding Backbone Pathway #2
92

93. Entrance Cabling Termination
50 Ft Rule
93

94. Intra-building Riser Schematic
TC TC IC
2nd Floor 2nd Floor 2nd Floor
IC TC MC
1st Floor 1st Floor 1st Floor
ER
TC TC IC
Basement Groundfloor Groundfloor
OFFICE BLOCK MAIN BLOCK
94

95. TIA/EIA-606 Administration
Pathway Space
Termination Identifiers Termination
Hardware Position
Cable Grounding
Required Linkages
Pathway Space
Termination Termination
Hardware Records Position
Cable Grounding
95

96. Color - Coding
COLOR TERMINATION TYPE
BLUE Horizontal (Station)Cable
WHITE First-Level Backbone - MC-IC Terminations
GREY Second-Level Backbone - IC-TC Terminations
BROWN Interbuilding Backbone - Campus Terminations
ORANGE Demarcation Point - Central Office terminations
GREEN Network Connections
RED Key Telephone Systems
PURPLE Common Equipment
YELLOW Miscellaneous - auxiliary, alarms, security
96

97. TIA/EIA-607 Schematic
TBBIBC
TGB TGB
TC TC
Metal Frame
of Building Panelboard
TGB TGB
TC TC
TBB TBB
TBB
TMGB TGB
EF ER
97

98. DNA
Distributed Network Architecture
Work Area
Telecommunications
Closet
Work Area
Telecommunications
Closet
Work Area
Equipment Room/
Entrance Facility
98

99. CNA
Centralized Network Architecture
Splice or
Interconnect
Pull-Through
Cables
Centralized Cross-
Connect/Electronics
99

100. Centralized Optical Fiber Cabling
90 meters
Pull-through
62.5/125µ
TC
WA
Splice/Interconnect WA
62.5/125µ 62.5/125µ
TC
90 meters
Centralized 300 meters
Cross-
Connect
100

101. Zone Distribution Cabling
101

102. Consolidation Point (CP)
102

103. CP Distance Specifications
− 90 m max, telecommunications closet to outlet
− 15 m min, telecommunications closet to CP
CP
15 m min
90 m max
103

104. Multi-User Outlet (MUO)
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105. MUO Cabling Distance Formula
MUO
W H P E
C=W+P+E
C max = (102 - H)/1.2
P + E = 7 m max
W = C - 7; must be < 20 m
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106. MUO Cabling Distance Chart
Length of Work Area Length of Horizontal
Cords (meters) Cable (meters)
3 90
7 85
11 80
15 75
20 70
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107. MUO/CP Comparison
MUO CP
Initial Installation Cost Lower Higher
Ease of access? Yes No
Outlet in Work Area? No Yes
Plug-and-Play? Yes Yes
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108. Distribution Point Placement
• Fixed Walls
• Structural Columns
• Utility Columns
• Cellular Floor and Poke-Thru
• Raised (Access) Floor
• Ceiling Space
• Furniture
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109. Design Considerations
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110. Sizing The Zone - Example
columns 30’
Example Office:
30’
• 8100 ft2 open office
• Typical office layout:
8’x8’ offices in
6-office clusters
• 3 Communications
ports/office
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111. Sizing The Zone - Example
30’
22-1/2’
Possible solution:
• 12 Zones
• 675 ft2/zone
• 18 Ports min/zone
• (24 Ports for spare
capacity)
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112. Distribution Point Location Example
Zone Size Example:
• 675 ft2, 30’ x 22-1/2’ 30’
Possible Solution:
• Locate CP/MUO on columns 22-1/2’
• Max distance from CP to
outlet = 52-1/2’ (16 m)
• Max distance from MUO to
workstation = 52-1/2’ (16 m) closet
• Max distance from closet to
CP/MUO = 105’ (32 m)
(< 90 m max allowance)
• Allow for various ceiling
heights in either solution
Caution:
Ensure that locations nearest closet do not violate 15 m min
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113. Furniture Pathways
113

114. Furniture Pathways
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