Earth-Sea Science Junction Boxes Monty Priede Oceanlab University of Aberdeen WP9
Distributed junction boxes around the array KM3NeT Concept Distributed junction boxes around the array
Active Sensors Acoustic Optic KM3NET Safety Radius Benign Sensors only
4-5 km? KM3NET Safety Radius 1km
The Junction Box Footprint 1km <100Km
91 Towers Regular Hexagon Suggested Sea Floor Geometry of KM3NeT 91 Towers Regular Hexagon
Suggested Sea Floor Geometry of ES Science Junction boxes around KM3NeT A 0 : +2000 B -1732: -1000 B +1732: -1000 1000m 2000m Safety Radius
800 km loop
Neptune-Canada 400V 10kV 10kW
MARS Concept (Monterey)
MARS – NEPTUNE Junction Boxes
Neptune-Canada Junction Box http://www.neptunecanada.ca/jb_test/perf_reqs_junction_boxe_CV2_080620.pdf
Neptune-Canada Junction Box 10 individual instrument interfaces Ethernet or serial communication links. 1.5 kW of power to each instrument Variety of voltages to allow for maximum configurability switch supply up to 6kW at 400V for high power loads. The Junction Box connects to the node. Instruments up to 10 km away from the Node and at depths up to 3000m
Tests at Alcatel Greenwich Neptune-Canada Junction Box Oceanworks Tests at Alcatel Greenwich September 2008
Junction Box (JB) architecture example Yves Auffret Ifremer Switch(es) CoS, QoS, PTP Boundary clock, VLAN, LACP, port Trunk,… Eth 1000LX (fiber) – 400VDC – NTP/PTP Eth 1000LX (fiber) – 400VDC – NTP/PTP Applications: Daisy chain for another JB, power equipments: robotics, vertical profiler… network extension up to 20km Eth 100BT (copper) – 48VDC – NTP/PTP + PPS/NMEA Eth 100BT (copper) – 48VDC – NTP/PTP + PPS/NMEA Node or JB Extension modules (up to 4 modules): IP server RS232/422/485, VDSL2 modem… Applications: Ethernet scientific instruments, ex: Seismometer (OBS), still camera , video, hydrophone, crawler… RS232/422/485 – 48VDC – PPS/NMEA Applications: Serial scientific instruments ex: ADCP, piezometer (pore pressure sensor) , seismometer, CTD, chemical analyzer,… 400VDC + Eth 1000LX (fibre) 1 or 2 fibres (fail-over, load balancing,..) Or 400VDC + xDSL (few km network extension) VDSL2 Modem – 400VDC – NTP/PTP Applications: Network extension, measurements in water column, instrument or instrument cluster up to 5-6km (low cost extension (vs. fiber), seismic network, acoustic network,… PTP/IEEE1588 clock client (PPS + NMEA time code) Control/command power supplies – faults detection Réseaux câblés et systèmes instrumentaux October 13th, 2008 15 15
Neptune-Canada Junction Box http://www.neptunecanada.ca/jb_test/perf_reqs_junction_boxe_CV2_080620.pdf
1. Eth 1000LX (fiber) – 400VDC – NTP/PTP Applications: Daisy chain for another JB, high power equipment: robotics, vertical profiler… network extension up to 20km Daisy chain Extension to 20 km
Ethernet scientific instruments, 2. Eth 100BT (copper) – 48VDC – NTP/PTP + PPS/NMEA Ethernet scientific instruments, Seismometer (OBS), still camera , video, hydrophone, crawler… <1km
Serial scientific instruments 3. RS232/422/485 – 48VDC – PPS/NMEA Serial scientific instruments ADCP, piezometer (pore pressure sensor) , seismometer, CTD, chemical analyzer,… <1km
4. VDSL2 Modem – 400VDC – NTP/PTP Network extension, measurements in water column, instrument or instrument cluster up to 5-6km (low cost extension (vs. fiber), seismic network, acoustic network,…,… Up to 5-6km
KM3NET Sites 100km radius Potential Footprints ANTARES- Ligurian Sea 2475 m NEMO - Ionian Sea 3350m NESTOR - Ionian Sea 4500/5200m
2km and 12km radius footprints at Pylos
Junction box Mechanical Components ROV servicable Connection to Network Cable (In case of failure) Housing (In case of failure) Observatory & Extension Manifold Connections Wet-mateable (in case of failure – 6 month service interval) Foundation Frame (permanent)
MARS Concept (Monterey) Observatories distributed on the sea floor
DELOS Concept (Angola) Observatory Modules on a frame Modules serviced By ROV every 6 months 8m 25 year life 4m Mud mat Foundations
Neptune-Canada Junction Box The Vertical Profiler System is lowered into a wet testing tank at NGK Co. in Saitama Japan, 3 Sept 08
Earth-Sea Science Junction Boxes Key Steps for TDR Do we take Optical Fibre through to observatories? Details of wet mateable manifold connectors Safety of power management- switching loads ESS data portal