blolite for telecom blolite the datacom experience (back in 1995) blolite mbps 100 200 300 400 500...

Blolite for Telecom

BLOLITE

• The Datacom experience (back in 1995)

BLOLITE

Mbps

100

200

300

400

500

600

700

800

900

1000

1100

1200

1975 1980 1985 1990 1995 2000

FiberChannel

ATM(622)

ATM(155)

FDDI

Token RingEthernet10MbRS 232

(<19.2 Kbps)

Blolite for Telecom

• Bandwidth demand– Business spend on IT in 1997 was $1 trillion– Spend on network hardware $100 bn by

2000– Another user comes on line every 0.4 sec– Web surfers to approach 400 million by 2003– E-commerce forecast is $1.3 trillion by 2003– Average voice call duration stable @ 3 mins– Internet access increased 30-45 m in 1999

BLOLITEBlolite for Telecom

• Bandwidth demandApplication Size (kB) Transmission speed (bit/s)

9.6k 56k 1M 16M 100ME-mail messg 13.2 1.4s 0.24s 13ms 0.83ms

0.13msPage of text 29.0 3.0s 0.52s 29ms 1.8ms 0.29msDocument 150.0 15.6s 2.68s 150ms 9.4ms 1.5msGraphic Drawing400.0 41.7s 7.14s 400ms 25ms 4.0msSpreadsheet 1200.0125s 21.43s 1.2s 75ms 12msVGA screen 25,16644m 7.5m 25s 1.57s 0.25sScanned page

B+W 67,320117m 20m 67s 4.21s 1.21sColour 201,960 5.84h 1h 3.37m 12.63s 2.02s

X-Ray 5 img 240,000 6.94d 1.19h 4m 15s 2.40sSource US West Communication Services


Blolite for Telecom

• The basic premises– Infrastructure costs (including

down time, start up delay costs, maintenance, repair, upgrade, etc) will continue to grow in the future

BLOLITE

• The basic premises– Growth in demand for bandwidth

will continue to explode, with no foreseeable limit to it.

– Optical fiber is the best communication element known today, therefore is the preferred solution for broadband, extensive telecom networks


• The shock of the future– When planning an infrastructure

with long life cycle, the planners need to cope with the demands that the future will place onto the infrastructure. E.g., the german autobahns, designed during the 30’s, are still in use despite a dramatic change in transportation technologies


• The shock of the future– In the telecom industry, the

rate at which future changes appear is measured in years, not in decades.

– The shock of the future has a direct impact on the physical connecting element of a telecom network (copper or fiber cables)


standard fibre...


bandwidth development today


DWDM...


• The three fiber questions– When to install fiber?– Which type of fiber?– How many fibers?

• And a meta-question– How many times during the

life-cycle of the infrastructure will we need to answer these questions?


"Taking the right decision today means not having to re-install optical fibres and/or copper

cables tomorrow as they will then be simply blown-in!"


• Blown fiber


Blown fiber was born when it was realised that the viscous drag of an air flow alows the fiber to literally ... … fly inside the

infraestructure element

• Why use blown fiber– Cost distribution: first the

infrastructure is put in place, the fiber circuits are installed only when required

– The infrastructure can be easily modified/repaired

– Fiber can be installed on demand, and new fiber types can be installed without changing the infrastructure


• Why use individual blown fibers– Reduced weight and increased

surface = better performance, longer distances

– Smaller diameter = better flexibility = tortuous routes (min radius for individual 5mm ducts = 25 mm)

– Choose number and type of fibers at installation time, no special cables required


For example:

6 buildings in a block

8 fibers per building

Phased implementation / on demand

1 km perimeter(4x250m)


Fiber in the local loop


With standard fiber cables it could be possible to add a cable to each subscriber the day it is required, …

… but this implies a new complete installation for each subscriber



It could also be possible to lay the complete infrastructure on day one, but …

… this would be very costly, lots of dark fiber, and no future proofness, for an unknown demand



It could be done with a ring, but then segregation points have to be prepared before hand, and segregation would take place over a “live” cable. And again, lots of dark fiber, no future proofness



The secondary ring would be installed, made of a number of microducts, on day 1. From there, any new customer would require a segregation and a blown fiber installation

Blolite in the local loop


Segregation takes place on empty ducts and can be made on demand

No dark fiber exists

No increase in the number of fibers or change of fiber type affects the infrastructure

Blolite in the local loop

products...


digging: cost distribution

Underground Construction (38,1%)

Co-ordination, Site Supervision (9,1%)

Manholes (3%)

End units incl. installation (1%)

Cable material (16%)

Installation of cables (3,9%)

Empty duct material (11%)

Installation of empty ducts 4,2%

Source: ALCATEL, City of Bremen, 250km

… > 50 % are digging costs

somethings are still there ...

Underground Construction vs. No-Dig Technology (BOP)

Underground/Unpaving Technology No-dig TechnologyApproval of earth work yes noTasks / Restoration of route total route noWeather impacts considerable smallRequires a new pipe system yes noModification of building plans many noneRisk of damaging foreigninfrastructure

high no

Obstruction to traffic maximum (no)Rehabilitation costs high noRe-usability of existing routes no not necessaryProtection of glass fibre limited yesLoad to the environment considerable none

necessities/demands

Comparison of Cable Installation Technologies

Technology Robot TechnologyKa-Te

Robot TechnologyBerlin)

BOP Technology(BRAND-REX )

Installation type metal rings dowels hosesPerformance 150m/day 200m/day 300m/dayInstallation in pipes with adiameter of min.

250mm 250mm 100mm

Installation in pipematerial

all not every all

Installation service pipe not possible not possible YesSimultaneousrehabilitation

not possible not possible Yes

Later rehabilitation problematic problematic YesCable in pipe freely suspending in

the protective pipefreely suspending resin-cast in the

protective pipeObstacle to sewage flow yes, metal rings no noCable in manhole freely suspending freely suspending protectedFast replacement ofcables

possible impossible Yes

BOP / BloCable / Blolite

blolite for telecom blolite the datacom experience (back in 1995) blolite mbps 100 200 300 400 500...

Documents