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DESIGNING
DESIGNING
STRUCTURED
STRUCTURED
CABLING SYSTEMS
CABLING SYSTEMS
Anton Indrawata, RCDD, Dipl.Ing.
Regional Training Manager
11/14/2005 ADC Proprietary and Confidential 2
Elements Of The Design
• Data transmission requirements
• Cabling components and their installation
• Pathway & Spaces where the cable is placed
11/14/2005 ADC Proprietary and Confidential 3
Data Transmission Requirements
• What applications?
– Windows or Mac applications with file transfers
– CAD or 3D modelling with file transfers
– Imaging or publishing work
– Medial or X-ray data transfers
– How many on the LAN?
– POTS or VoIP
• What network components?
– PCs, NICs, file servers, network operating system
– Hubs, switches, routers
– Printers, scanners, industrial equipment
– Remote access, VPN
• Growth allowance?
– Own building
– Long or short tenancy
11/14/2005 ADC Proprietary and Confidential 4
Data Transmission Requirements
• Ethernet most common LAN technology (over 25
years old)
• IEEE 802.3 Carrier Sense Multiple Access with
Collision Detection CSMA/CD:
• 3y 100BASE-T on Cat3
• 3ab 1000BASE-T on Cat5E
on Cat6
• 3z 1000BASE-SX on OF
-LX on OF
• Full Duplex with flow control
methodology is industry preferred
• Half Duplex is supported by only
a few vendor specific gigabit
products
MAC = Media Access Control
PHY = Physical Layer = OF or Cu
11/14/2005 ADC Proprietary and Confidential 5
• Speed, Band Width, & Utilisation determine
physical medium
Optical Fibre
SMOF 9/125
MMOF 50/125
62.5/125
Copper
Cat7, Class F Shielded
Cat6, Class E UTP
Cat5E, Class D UTP
Wireless
Narrow Band Microwave
Infrared
Spread Spectrum
Cabling Components
11/14/2005 ADC Proprietary and Confidential 6
Cabling Components
OF CABLING SYSTEM
STRUCTURED
CABLING
APPLICATION
SPECIFIC
Channels
OF300 - 300m
OF500 - 500m
OF2000 - 2000m
Made From of Cable
OM1
OM2
OM3
OS1
ATM155
ATM622
GBE
1000m
300m
275m
Application Fibre 62.5u 9u
2000m
330m
550m
2000m
2000m
2000m
1310nm1300nm850nm
Ref: ISO 11801 Cl 8
Ref: ISO 11801 Table 4
11/14/2005 ADC Proprietary and Confidential 7
ISO 11801 Channel Distance
Cabling Components
CHANNEL ETHERNET
DISTANCE 10 Mbps 100 Mbps 1,000 Mbps 10,000 Mbps
300 m OM1 0M1 OM2* OM3
500 m OM1 OM1 OM2* OS1
2000 m OM1 OM2 OS1 OS1
*OM1 can be used with a wavelength of 1300nm, but OM2 gives a higher safety
margin and is less sensitive to installation practices
TYPE SIZE OVERFILL LAUNCH
BANDWIDTH MHz.km
EFFECTIVE
LASER LAUNCH
BANDWIDTH MHz.km
MMOF
/125
µ
850 nm 1300 nm 850 nm
OM1 50 or 62.5 200 500 Not Specified
OM2 50 or 62.5 500 500 Not Specified
OM3 50 1500 500 2000
Table 1
Table 2
11/14/2005 ADC Proprietary and Confidential 8
10,000 Mbps
100 Mbps
9 SMOF @ 1310 & 1550nm distance depends on transmitter & receiver eg 15km if high power
500m 2 km300m
Table 3 KRONE Optical Fibre Recommendations
50/125u MMOF OM3
1500 MHz.km MBW @850nm
1,000 Mbps
9/125u SMOF @ 1310nm OS1
50/125u MMOF OM2
500 MHz.km Modal Band Width @ 850nm
50/125u MMOF OM2
500 MHz.km Modal Band Width @ 850nm
62.5/125u MMOF OM1
200 MHz.km Modal Band Width @850nm
Cabling Components
11/14/2005 ADC Proprietary and Confidential 9
• ISO/IEC 11801:2002
– Directed at Building Professionals, Architects, Designers,
Installers
– Defines performance for cabling components, permanent
links, channels
– Defines Class A, B, C, D, E and F
– Defines CD, BD, FD, CP, MUTO, TO
• Why is it still a draft? Waiting on the
publisher.
– ISO/IEC 11801 was voted on and approved in June 2002
– Delays were not on PL and Channel performance
– Delays were on how to measure components for Cat6 & 7
• France refuses to accept the American connector
as an alternative claiming patent infringements.
Cabling Components
11/14/2005 ADC Proprietary and Confidential 10
System Elements
[...]... Cord = 5m Horizontal PL Distance: H = 105 - FX - CY = 105 - (3+5)x1.5 - 5x1 = 105 - 12 - 5 = 88m 11/14/2005 ADC Proprietary and Confidential 13 How far on Horizontal Copper? What happens if the TO is changed to a MUTO with 12m Work Area leads? 88m + 12m = 100m Therefore OK? Wrong! H = 105 - FX - CY = 105 - (12+5)x1.5 - 5x1 = 105 - 25.5 - 5 = 74.5m 11/14/2005 ADC Proprietary and Confidential 14 How far.. .System Models Fig 11a Fig 11c Inter - Connect to TO Fig 11b Cross - Connect to TO 11/14/2005 Inter - Connect + CP Fig 11d Cross - Connect + CP ADC Proprietary and Confidential 11 How far on Horizontal Copper? Table 4 11/14/2005 ADC Proprietary and Confidential 12 Calculation - Example Example: • Class D performance • Work Area Lead = 3m... The summertime temperature in some ceilings can be 40°C What should H be now? Fixed Cabling, CP Link length has changed from 88m to 68.5m H2 = H1 - 0.4% per °C above 20°C = 74.5 - 0.4% x (4 0-2 0) = 74.5 - 8% = 74.5 - 6 = 68.5m 11/14/2005 ADC Proprietary and Confidential 15 How far on Backbone Copper? Table 5 11/14/2005 ADC Proprietary and Confidential 16 Spaces – Telecommunications Room TR • Building... closer fixing if necessary – No cabling in lift shafts – Conduit fill rate = 40% (for > 3 cables) 11/14/2005 ADC Proprietary and Confidential 21 Pathways – Intra Building • Types of Horizontal Pathways are: – Underfloor ducts – Cellular floors – Conduit – Access floors – Ceiling distribution • Pathways in a Building consist of combination of these systems 11/14/2005 ADC Proprietary and Confidential... pathway – Maximum occupant density – Cable density – Cable diameter – Pathway capacity – Cabling requirements for other system requirements 11/14/2005 ADC Proprietary and Confidential 23 Pathways – Intra Building • The useable floor space is the area used by the occupants for their daily working fuctions • For design purpose – Include Hallways spaces – Exclude other common building spaces (e.g Janitor,... » Standard 2100 – 2500mm² » Large 11/14/2005 4900 – 5700mm² ADC Proprietary and Confidential 27 Pathways – Intra Building • Pathway Size Design – Work from WA back to FD, then to BD – Design for at least 3 x 4 pair cables / WA (recommend 4 x cables) – Recommend end maximum fill rates: » 40% conduits » 50% trays & skirting duct 11/14/2005 ADC Proprietary and Confidential 28 Pathways – Inter Building... runs from feeder ducts to specific floor areas Duct couplings: joint ducts to form a system Duct inserts: provide opening in a distribution duct after concrete is poured Junction box: permit changes in cable direction and provide access for pulling cables ADC Proprietary and Confidential 26 Pathways – Intra Building • Design Guidelines for Underfloor ducts – For planning purpose, set 650mm² feeder and... 3.4m (for 1000m2 floor) • TR Lighting = 500 lux at 1m above floor • Light fittings > 2.4m above floor 11/14/2005 ADC Proprietary and Confidential 17 Spaces – Equipment Room ER • ER size = 40m2 (for 4 floors each 1000m2) • ER's contain active equipment generating heat • HVAC = 18 - 24°C with 3 0-5 0% relative humidity (measured 1.5m above finished floor) • Allow space for BAS equipment • Specific buildings... other common building spaces (e.g Janitor, Pantrys) • The standard floor space allocation for office environtment is one Work Area for every 10m² 11/14/2005 ADC Proprietary and Confidential 24 Pathways – Intra Building • The pathway capacity should be designed to accommodate minimum three runs of horizontal cable one Work Area; the extra space allowance will facilitate additions, changes and alterations... • Fully packed Telecommunications cables especially Data grade cables e.g Cat.5e, Cat.6 will degrade the cable transmission performance significantly 11/14/2005 ADC Proprietary and Confidential 25 Pathways – Intra Building • Underfloor Duct Systems – – – Available in rectangular shape May be installed in single, double or tripple runs Consicts of combinations of large, standard and small capacity to . DESIGNING
DESIGNING
STRUCTURED
STRUCTURED
CABLING SYSTEMS
CABLING SYSTEMS
Anton Indrawata, RCDD, Dipl.Ing.
Regional Training Manager
11/14/2005 ADC. 4
11/14/2005 ADC Proprietary and Confidential 13
Calculation - Example
Horizontal PL Distance:
H = 105 - FX - CY
= 105 - (3+5)x1.5 - 5x1
= 105 - 12 - 5
= 88m
Example:
•