Undersea Neutrino Telescope Possible Solutions Antoine Lecroart – 31 August 2005

Scope Alcatel propose to offer the following elements for an undersea Neutrino telescope in a turnkey approach: Submarine cable (OALC-4, power+fibers); Cable Termination Assembly (CTA); Node/Jointing Box (different solutions foreseen): Single node solution (8 x10/100/1000 Mbit/s, 9 KW) (Oil & Gas Solution) Multiple nodes WDM solution (2 x GigE per node, 9 KW per node) (NEPTUNE Canada Solution) Installation

Cable (OALC-4) Well proven structure Addition of bedding layers Strain-free fibres in steel tube Steel wire vault Copper tube PE insulation Optional armour schemes or steel tape Addition of bedding layers Crush resistance 9 kN/cm It was 5 kN/cm

Poor Burial/Crossings OALC Armour Range DA Beach to 20m Shore Ends Poor Burial/Crossings LW > 1000m Smooth Sea Bed LWP Steep/Rough Sea Bed SA > 20m - 1500m Full Burial

The OALC-4 supply record Record of supply and commitment (over 140 000 km) Sea Me We 3 40000 km 1998 Atlantis-2 8500 km 1999 NorthStar 3200 km 1999 UK Germany 6 560 km 1998 America II 8300 km 1999 Southern Cross 29000 km 2000 Mac 1 6000 km 2000 Japan-US 22000 km 2000 BS FOCS 1300 km 2000 Flag Atlantic 1 12570 km 2001 Apollo 12800 km 2003 Sea Me We 4 TBC km 2005 MedLink 1400 km 2005 (TBC)

CTA: Splits Power and Optical Connectors

CTA: Proven Jointing with Cable

ODI 10 KV Connector

Sea Earth Electrode

Bulkhead

Single Node Solution Still under definition Up to 8 x 10/100/1000 Mbit/s Direct light modulation Simple Optical Multiplexing of 8 channels Very reliable (allows point to point links) Up to 9 KW of available power (400V) NEPTUNE Type Converters (MV + LV)

CTA LVconvert MVconver WDM LVconvert Ethernet interfaces Simple Transponder Ethernet interfaces

STAGE 1: Basic Configuration (1fibre pair)

Stage 1: 1fp Basic configuration BU BC Node BU889 BU End BU1027 Node Node Node

STAGE 1 ASN OND T Alcatel Canada Maripro Satlantic ASN & Supplier IP Router GigE To the Ethernet IEEE802.3 HV Conductor 10 A/10 KV 1696 MS Management 1352CM IP&Timing Equipment Timing Generator NTP/ 1µsec PTP Cable Termination Rack Port Alberni Terminal Station Ground Bed PFE 2.5Gbit/s FP 1X 10*1000 Base T 1696MS 4*MCC3 FP 1Y ASN Sub Mgt MV Software LV Software Node Powering PFE Software Line Supervision

CTA 1696 Compact AO Filter AO Filter LVconvert MVconver MCC3 West Opt Fiber East Opt Fiber 2.5Gbit/s CTA 1696 Compact AO Filter AO Filter LVconvert MVconver MCC3 2*1 Gig Ethernet MCC3 2*1 Gig Ethernet LVconvert ESC Media Conv G Ethernet G Ethernet G Ethernet 6800 6800 10 / 100 Base T 10 / 100 Base T Media Conv O-1 and S-1 interfaces

Backbone Branching Scheme Extension Node Extension Cable Assembly (up to 100 km) Cable Pack Assembly (100 m) BU Backbone Fully Compliant Node Spur Cable PBOF Hose Assembly

LV Power/Comms Housing Node Module Float Assembly Guard Frame Telemetry Cable MV Housing LV Power/Comms Housing ROV Connector Panel Science Harness Cable Dummy Load Weight (in-air) 4000 kg (8,800 lbs) Weight (in-water) 45 kg (100 lbs) Length 2.7 m (9 ft) Width 2.0 m (6.4 ft) Height 1.4 m (4.6 ft)

Node Module Block Diagram Power/Telemetry Cable Parking Panel (CTA & 4 Science) CTA Cathode Science Harness Cables (8) MV Power Housing O-1 Interface/ Extension Node Power/FO Cables CTA-Power Connector Covers (typical) Node Module Parking Panel (2 O-1 & 4 Science) Node Base CTA-F/O LV PWR/ COMMS Wet Dry ROV Panel ROV Connector Panel LV Power/Comms Housing Dummy Load Housing

Medium Voltage Power Housing Assembly 10KVDC to 400VDC Bellows MV Power Converter Chassis Assembly MV Penetrators (3) Power/Telemetry Connector Weight (in-air) 770 kg (1700 lbs) Weight (in-water) 550 kg (1200 lbs) Housing Diameter 420 mm (16.6 in) Housing Length 1520 mm (60 in)

Low Voltage Power/Comms Housing Assembly Optical Penetrators (3) Optical Splice Tray E/O Media Converters (4) Inner Bulkhead Science Harness Cable Assemblies (8) Power/Telemetry Connector Pressure Relief Assembly (2) Fill Ports (3) LV Power Chassis Assembly Dummy Load Connector Alcatel 1696SM Alcatel 6300 (2) Bellows Weight (in-air) 1060 kg (2300 lbs) Weight (in-water) 620 kg (1360 lbs) Housing Diameter 550 mm (21.5 in) Housing Length 1850 mm (73 in)

Top Assembly Weight (in-air) 6600 kg (14600 lbs) CTA TRF Node Module TRF Door (2 sets) ROV Docking Assembly Access Hole TRF Skirt Science Cable (Active) ROV Connector Mounting Panel Parking Panel O-1 Interface/Power (2) O-1 Interface/FO (2) S-1 Science Interface (8) Sc Parking Position W/Cover Pad Eyes (4) Science Cable (Parked) Weight (in-air) 6600 kg (14600 lbs) Weight (in-water) 2300 kg (5100 lbs) Length 5.4 m (17.8 ft) Width 4.6 m (15 ft) Height 1.4 m (4.6 ft)

Extension Cable Pack Assembly Extension CTA Temporary Tray NASPos USBL Tracking Pinger Flying F/O Connector Flying Power Connector Cable Pack Deployment Cover PBOF Hose Assembly PBOF Hose “Y” (Removeable from Tray) Cable Pack/Anchor ROV Pulling Handle

ROV Interfacing with ROV Wet Mateable Connectors

Science Cables (parked) Node Module Removed CTA TRF Node Module TRF Doors (open) ROV (Alcatel Work Class ROV Shown) ROV Tether Parking Panel Parking Position Science Cables (parked)

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