1. Site for the PPM-DU String Layout Possible Site / Properties Power / Communication Contribution / Planning R.Papaleo, P.Lamare, E.Heine 5-9-2012 Bologna

2. Objectives of PPM-DU Verification DOM in the network Verification of the DU design Verification of deployment with the LOM

3. PPM-DU layout 3 active DOM’s (place?) <= 17 dummy DOMs, <=5 buoyant spheres OFM functionality in foot container Possibly voltage conversion in foot container Properties; Top drift <= 120 m @ 0.3 m/s sea current Weight in air <= 1700 kg DOM interval <= 40 m Leader <= 120 m Height in sea <= 876 m Rope Ø = 4 mm, ρ = 970 kg/m 3, load <= 210 kg/rope VEOC Ø = 6.35 mm, ρ = 1168 kg/m 3 DOM Ø = 432 mm, ρ = 720 kg/m 3 Buoy Ø = 432 mm,ρ = 410 kg/m 3 Deadweight ≈ 946 kg in air (iron) Volume ≈ ½ x 20 foot ISO container Constrains; 2 dedicated fibres to shore 360 - 400 V=, 40 W from foot container

4. Possible sites InfrastructureLocation Shore distance (km) Depth (m) Number of output available Type of connector Voltage (V) Number of fibre per output Fibre type Antares 42 o 48 N 6 o 10 E 4225001? ODI rolling seal 500VAC2ITU-G654 Capo Passero 36 o 17,06’N 15 o 58,9’E 9534501ODI NRH375 DC2 | 3ITU-G655 Infrastructure Acoustic positioning ADCPCTDC-starCTLaser beacon AntaresOperational22222 Capo Passero To be deployed 12101 Instrumentation (partly on Nemo tower / Antares instrumentation line) Geographic and installed properties

5. Connection diagram Shore station Base container DOM #1 DOM #2 DOM #3 ? P SC O MEOC IL ? VEOC ? Depends on site; P AC/DC conversion for Antares IL Antares: spare part wm-connectors both sides IL Capo Passero: to order wm-connector JB side or both sides data sc + cw GPS JB P available covered open Anchor DAQ PPM-DU ? depends on site

6. Shore station 50/50 APD VOA on/off λ5 C2 λ1 C2 λ1-3 Concept for PPM-DU with Overlay DWDM REAM 2xCu DOM PIN λ1 λ5 C-Band 1528-1568 nm MOD + Drivers LiNbO3 45 / 95 km Data @1.25 Gbps CW + SC / Tim Base container optics Junction Box REAM 2xCu DOM PIN λ2 λ5 REAM 2xCu DOM PIN λ3 λ5 Control box λ4 Electronics DAQ

7. Concept of the power flow Client voltages from control to control to optics 200-500Vac IL VEOC <= 40 W Base container power Antares Storey 360-400Vdc 12Vdc Client voltages DOM BOB Fuse 0.5A-10ms,OCP 3Apeak Storey 360-400Vdc 12Vdc Client voltages DOM Storey 360-400Vdc 12Vdc Client voltages DOM 360-400Vdc BOB JB

8. Contributions Itemavailablecoveredopen GPSINFN/CPPM Shore DAQ / softwareDemokratos? Shore electronics??? Shore opticsNikhef Shore powerCPPM/INFN MEOCCPPM/INFN JBINFN/CPPM ILCPPMINFN Foot container mechanicsINFN/CPPM power conversionCPPM local powerCPPM power switchINFN /CPPM controlINFN/CPPM opticsNikhef AnchorNIOZ/INFN/CPPM? DU infraNIOZ, Nikhef Buoy spheresNIOZ Dummy spheresNIOZ RopeNikhef, NIOZ VEOCNikhef DOM 1,2Nikhef DOM 3 ECAP Power boardDemokratos (TBD) CLBIFIC (TBD) Software/firmware??? OctopusNikhef HV-baseNikhef PMTNikhef,CPPM,ECAP,INFN VEOC DC/DCNikhef DeploymentNIOZ ROV ConnectionCPPM/INFN Shore Network infra DU-string Sea operations

9. Site dependencies AntaresCapo Passero 2500 mdepth3450 m 45 kmdistance95 km No (now) Available JB output Yes IL (spare)physical DU connectionIL (15 wks) AC/DC (? wks)power connectionDC Base containercommunicationBase container DAQshoreDAQ Sea operationsinstallationSea operations Apache / COMEXconnectionCougar / Certamen

10. Sea operations

11. Realisation issues Major planning restrictions Complete contribution list DU complete @ NIOZ Texel20-2-2013 Crew @ Malaga Spain1-3-2013 Deployment tests1-3-2013 – 15-3-2013 PPM-DU deployment1-3-2013 – 15-3-2013 Connection 4M2013 Delivering time IL15 wks Delivering time optics13 wks manpower Mandatory Project coordinator PPM-DU Operation coordinator / site

12. Summary -Two possible sites are identified: Antares Capo Passero -Arguments are given for a choice: Time schedule Infrastructure available/offered at the sites Technical layout Site choice is URGENT