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Sirtis offer
Feasibility Studies and Planning
Maintenance
Telecommunication Networks
Design
Management Systems
Procurement
Engineering and Network Construction
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• 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 connections)
• Both vertical and horizontal distributions
• Side by side frame installation
• In-module patch-cord extralength organizer

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New HFC underground cabinets
New FN underground cabinet (high capacity)
New LA underground cabinet (1 LA max. 3 RF
passives)
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• 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

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• Waterproof (IP68) carbon steel cabinet
• Typical capability 1 Optical Termination, 1 E/O
  Converter, 1 Launch
• Amplifier, 1 Last Amplifer, 1 Power Supply, a
  set of passives
• Up to 200 watt inside all passive heat
  dissipation
• Push-pull pantograph for easy equipment
  extraction

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Central Station
Base Station
1
1
Max. 8 km
Cable sheath under test
Surge arrestor
Switched line
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Outposts
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Central Monitoring Office
Exchange
Field
Exchange
Max. 100 km
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o.f. cable
connection for sheaths and sensors
splice enclosure
power ground (? 400 ? manhole rod)
signal ground (? 4000 ? manhole frame)
outpost
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In 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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• In 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 conditions

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• 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

Sirti Portugals TRANSGAS Project
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• 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

OPGW
lashed or
ADSS
wrapped
ADSS
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• Ad 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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• 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

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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
(a)
(c)
(d)
(b)
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