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Elements Of The Design KRONE ¢ Data transmission requirements ¢ Cabling components and their installation - Pathway & Spaces where the cable is placed... Data Transmission Requiremen

STRUCTURED CABLING SYSTEMS

Anton Indrawata, RCDD, Dipl.Ing

Regional Training Manager

Elements Of The Design

KRONE

¢ Data transmission requirements

¢ Cabling components and their installation

- Pathway & Spaces where the cable is placed

KRONE

¢ 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

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Data Transmission Requirements

¢ IEEE 802.3 Carrier Sense Multiple Access with

Collision Detection CSMA/ CD: The Gigabit Ethernet Standards

` 3y 100BASE-T on Cat3 IEEE 802.3z (June 1998)

on Cat6 Media Acces Control (MAC)

Ss Fiber Channel Copper PHY

Singlemode Multimode Short-haul Long-haul methodology IS industry preferred Fiber-5Km Fiber -550m Copper - 25m Copper - 100m

1000BASE-LX 1000BASE-SX 1000BASE-CX 1000BASE-T

Half Duplex is supported by only

a few vendor specific gigabit Cahners In-Stat Group, 5/01

MAC = Media Access Control

PHY = Physical Layer = OF or Cu ADC Proprietary and Confidential 4

°„ SpDeed, Band Width, & Utilisation determine

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CatbE, Class D UTP

Narrow Band Microwave

Wireless > Infrared

APPLICATION SPECIFIC

Ref: ISO 11801 Table 4

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BANDWIDTH MHz.km | BANDWIDTH MHz.km MMOF /125u 850 nm 1300 nm 850 nm

OM1 50 or 62.5 200 500 Not Specified OM2 50 or 62.5 500 500 Not Specified

Table 2

DISTANCE 10 Mbps 100 Mbps 1,000 Mbps | 10,000 Mbps

9 SMOF

10,000 Mbps

50/125u MMOF OM3

T,000 MBPS | 50/125u MMOF OM2

— |SO/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

System Models

Channel = 100 m max

Fixed horizontal cable

FD | |

Equipment cord

Equipment Patch cord/

cord Jumper cable

Fig 11b Cross - Connect to TO

Fig 11d Cross - Connect + CP

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Work area cord

11

How far on Horizontal Copper’?

ue KRONE

using Category 5 using Category 6 using Category 7 components components components

Interconnect - TO 11a H = 109 - FX H=107-3°-FX H = 107 —2*)- FX

Cross-connect - TO 11b H = 107 - FX H=106-3°-FX H = 106 —3 *)- FX

Interconnect - CP -TO 11c H= 107 -FX-CY H=106-3°-FX-CY |H=106-3%-FX-CY

Cross-connect - CP - TO 11d H=105-FX-CY H=105-3°-FX-CY |H=105-3%)-FX-—CY

H = the maximum length of the fixed horizontal cable (m)

F = combined length of patch cords/jumpers, equipment and work area cords (m)

C= the length of the CP cable (m)

X= the ratio of cord cable insertion loss (dB/m) to fixed horizontal cable insertion loss (dB/m) - see clause 9 Y= the ratio of CP cable insertion loss (dB/m) to fixed horizontal cable insertion loss (dB/m) - see clause 9

NOTE - For operating temperatures above 20 °C, H should be reduced by 0,2 % per °C for screened cables; 0,4 %

per °C for unscreened cables

* This length reduction is to provide an allocated margin to accommodate insertion loss deviation

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The summertime temperature in some

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ceilings can be 40°C

What should H be now?

Fixed Cabling, CP Link length has changed from 88m to 68.5m

Hạ= H; - 0.4% per °C above 20°C

74.5-0.4% x (40-20)

74.5 - B%

74.5 - 6 68.5m

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Backbone cable

i

FD or BD | | | | BDor CD

Equipment Patch cordf Patch cord! Equiprnent cord Jumper cablke Jumpercabe cabe

Class Component A B Cc D E F

category see * see * see * see * see * see *

5 2 000 B=250-FX B=170-FX B=1065 -FX | - -

6 2 000 B=260-FX B=185 - Fx B=111-FX | B=1065-3°-FX -

f 2 000 B=260-FX B=190-FX B=115-FX | B=107-3°-FxX B=105-3°-FX

B =the length of the backbone cable (m)

F = combined length of patch cords!jumpers and equipment cords (mì

% =the ratio of cord cable insertion loss (dBi) to backbone cable insertion loss (dB/m) — see clause 9

NOTE 1 - Where channels contain a different number of connections than in the model shown In Figure 12, the fixed cable length shall be reduced (where more connections exist) or may be increased (where fewer connections exist) by 2 m per connection for category 5 cables and 1m per connection for category 6 and 7 cables Additionally, the NEXT, Return Loss and ELFEXT performance should be verified

NOTE 2 - For operating temperatures above 20 °C, B should be reduced by 0,2 % per °C for screened cables; 0.4 % per °C for unscreened cables

“ Applications limited by propagation delay ar skew may not be supported if channel lengths exceed 100 m

° This length reduction isto provide an allocated margin to accommedate insertion loss deviation

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¢ Building Floor Plans

— Argue for central TR's, with risers, away from lifts

— Argue for UPS & batteries well away from TR's

— Argue for EMI sources well away from TR's

— 1x Work Area/ 10m? (Usable floor space)

© 1x TR/ 1000m2 or when H> 90m (at 20°C)

> TRsize = 3x 3.4m (for 1000m? floor)

¢ TRLighting = 500 lux at 1m above floor

¢ Light fittings > 2.4m above floor

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ER size= 40m? (for 4 floors each 1000m2)

ER's contain active equipment generating heat

humidity (measured 1.5m above finished floor) Allow space for BAS equipment

specific buildings (hotel, hospitals, laboratories, education) require ER size allocations based on work area numbers UPS > 100kVA located in a separate room

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°Ồ Access Flooring:

best solution for Equioment Rooms

minimum height = 300mm (ER with under-floor HVAC)

= 1221kg static (computer room, medium duty)

¢ Cable Trays:

best solution for Pathway

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Hooks

ducting) strongly advised not to share cable trays to distribute telecommunications and power cables

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Conduits:

OK for suface fixing; | Rare in concrete;

— Label both ends of conduit with floor & room number

— < 18m between pulling points

— < 2x 90° bends per pulling section

— must leave a 90kg pull cord

Surface Skirting Duct:

Quite common

— Locate TO in short removeable cover fittings

— Multi channel metal skirting must be bonded to earth

— Power on the bottom, Communications on the top

— Insufficient soace for Cat 6 & 7 minimum bend radius

— Leave spare cable in ceiling; not in skirting duct

sleeves and slots

Conduit shall NOT be used for vertical pathways except for sleeves and must be < 800mm

Fix 4 pair cables to support tray at 500mm on vertical tray (no fixing on horizontal tray and 200mm

Cabling requirements for other system requirements

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¢ The useable floor space is the area used by the

occupants for their daily working fuctions

— Include Hallways spaces

— Exclude other common building spaces (e.g Janitor, Pantrys)

°‹ The standard floor space allocation for office

environtment is one Work Area for every 10m?

Always check the actual cable diameter before determining the pathway size

In general, EIA/TIA 569A recommends that the maximum pathways fill rate capacity shall not exceed 60%

Fully packed Telecommunications cables especially Data grade cables e.g Cat.5e, Cat.6 will degrade the cable transmission performance significantly

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Underfloor Duct Systems

— Consicts of combinations of large, standard and small

capacity to meet the served area requirements

Underfloor Duct components

dustribution ducts

areas

concrete is poured

access for pulling cables

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— For planning purpose, set 650mm? feeder and distribution ducts for a 10m? useable floor space

— To determine the useable floor space that feeder duct can serve, use this formula:

» DUCT CROSS SECTIONAL AREA X 0.0155m2/mm2

serve ~ 80m? floor space; a distribution duct of 2100mm? can serve ~ 33m floor space

— Typical duct sizes:

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°ồ 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)

» 40% conduits

» 5bO% trays & skirting duct

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§ By definition this is for Backbone Cabling, so,

Copper = 100m max for Gigabit Ethernet MMOF = 500m max for GBE

SMOF = 2km_ max for GBE

See Table 5 See Table 2

m Buried Direct or in Conduit Cu & OF

— Must have cable with circumferential moisture barrier AND

internal moisture blocking agents (gel or swelling powder)

m@ Depth = 300 mm minimum cover over top of cable/conduit

450 mm under public footpaths & roadways

Recommend detectable marker tape at 100mm above cable/conduit

Conduit Bends = x 10 Conduit Diameter (for > 50mm dia conduits)