ANCIT WORKSHOP Torino, 30-31 March 1998. ANCIT WORKSHOP Torino, 30-31 March 1998.

ANCIT WORKSHOP

Torino, 30-31 March 1998

M. Bottanelli, G. Decorato

Special installation solutions:the Sirti’s experience

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Summary

Introduction

Solutions for central office

Solutions for outside plant

Solutions for customer premises

Conclusions

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Introduction

Feasibility Studies and Planning

Design

ProcurementEngineering andNetwork Construction

Maintenance

Telecommunication Networks

ManagementSystems

Sirti’s offer

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Infrastructure for central office

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New optical distribution frame (ODF)

4/4

4/1

ADM-16

ADM-1

ADM-16

Ring

Ring

ODF ODF16LTE 16LTE

ODF

ODF

ODF

connections)

Both vertical and horizontal distributions

Optical connection at the same network

level and between different ones

1/2 N3 frame with up to 10 optical

modules (up to 160 SC or FC

Side by side frame installation

In-module patch-cord extralength

organizer

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New optical distribution frame (ODF)

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Ad hoc solutions for HFC cabinets

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Solutions for low environmental impact

New FNunderground

cabinet(high capacity)

New HFC underground cabinets

New LA underground cabinet(1 LA max.+ 3 RF

passives)

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New LA underground cabinet (“CAI’96”)

Waterproof (IP68) sheet molding compound

cabinet

Up to 1 Last Amplifier and 3 RF passives

Up to 35 watt inside heat dissipation

Compact size, easy installation, low cost

406

886

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New FN underground cabinetWaterproof (IP68) carbon steel cabinetTypical capability: 1 Optical Termination, 1 E/O Converter, 1 Launch

Amplifier, 1 Last Amplifer, 1 Power Supply, a set of passivesUp to 200 watt inside all passive heat dissipationPush-pull pantograph for easy equipment extraction

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Automatic optical cable sheathmonitoring system

Central Station Base Station

Switched line

Central MonitoringOffice

Exchange Field Exchange

1

N

1

15 Outposts

Cable sheath under test Surge arrestor

Max. 8 km

Max. 100 km

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Automatic optical cable sheathmonitoring system

power ground( 400 manhole rod)

signal ground( 4000 manhole frame)

outpost

connection forsheaths and sensors

o.f. cable

splice enclosure

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No Dig techniques

m a n h o l e

d r i l l i n g h e a dl o c a t o r

1 0 0 - 1 5 0 m m a x .

d r i l l i n gh e a dD i r e c t i o n a l d r i l l i n g

d r i l l i n g m a c h i n e

p i l o t - h o l e d r i l l i n g

d u c t p u l l i n g - b a c k

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No Dig TechniquesIn 1996 Sirti Polska carried out

the crossing of Vistula river near

the centre of Warsaw by means

of a 770 m directional drilling

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Air blowing cable installationIn 1996 Sirti Portugal carried out the installation of an 840 km

optical cable link along a TRANSGAS gas-pipeline by means of

air blowing

6 km optical cable drums were used

4 intermediate blowing points for each cable drum were located by

means of calculations in order to consider installation conditions1 1 2

m1 m2 m3 m4

cable drum

cable organizer

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Air blowing cable installation

Sirti Portugal’s TRANSGAS Project

Air blowing installation main

features:

Cable diameter: 13 mm

Cable weight: 150 g/m

Duct inner diameter: 41 mm

Air speed: 3000 m/min.

Cable speed: 50 m/min.

1-2 cable drums (6-12 km) a day on

average

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Aerial optical cable installation

Since 1983 (Suvereto, Italy, 1000 kV

power line for ENEL) Sirti has been

installing aerial optical cable of

different types. Present activities are:

ADSS cable: 100 km link for Telecom

Colombia (350 m of cable for each span)

OPGW cable: 300 km link for ENEL

Wrapped cable: 1300 km link for ENEL

lashed or wrapped

ADSS

OPGWADSS

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Solutions for special cable installationAd hoc, low cost and easy

istallation solutions for

special situations are often

directly designed by Sirti

The installation of a leaky

cable for mobile services

into a railway tunnel is

carried out by means of

properly designed

accessories

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Broad band optical home cabling system

STBT

RX

TX

TRX

TX

Coaxial NTRX

TX

RX

Upstream

Downstream

STB

LaserDiode

PINDiode

Amplifier 1 Amplifier 2

from the coaxial network to the terminal equipment

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Broad band optical home cabling system

All dielectric broad band link

2 GHz downstream bandwidth

Low environmental impact

Easy installation

Full compliance with future

network and service evolution

Up to 4 user terminal

equipment

Low cost

TXRX

coaxial cable

flat n

flat 1

UTP telephone cable

RXRX

TX

B-NT

TXRX

CDM

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A “light” solution for premises coaxial cabling

(c) (d)

a) - HFC bus architecture for premises coaxial cabling

b), c), d) - Different architectures for traditional antenna

plants. Integration between HFC and antenna plants can

highly reduce the cost of cabling

(b)

(a)

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5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

1 2 3 4 51 2 3 4 5

1 2 3 4 5

(2)(1) (3)

(5)(4) (6)

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TECHNICAL ANALYSIS ECONOMIC ANALYSIS

0

5

10

15

20

WORST CASE SIGNAL LEVEL [dBmV]

TRADITIONAL ANTENNA MEAN SIGNAL LEVEL TRADITIONAL INSTALLATION MEAN COST = 1

0

0,15

0,30

0,75

1,20

MEAN COST FOR PASSED HOME

1,05

0,90

0,60

0,45

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Conclusions

Some of the Sirti’s latest years special solutions, studies and

projects for network construction have been illustrated

The avalability of a whole set of technical solutions and the

capability to properly customize them are two fundamental

requirements for a modern network and system integrator

ANCIT WORKSHOP Torino, 30-31 March 1998. ANCIT WORKSHOP Torino, 30-31 March 1998.

Documents

Transcript of ANCIT WORKSHOP Torino, 30-31 March 1998. ANCIT WORKSHOP Torino, 30-31 March 1998.