Transcript Slides - Agenda INFN

Earth-Sea Science
Junction Boxes
Monty Priede
Oceanlab
University of Aberdeen
WP9
KM3NeT
Concept
Distributed junction boxes around the array
Active Sensors
Acoustic
Optic
KM3NET
Safety Radius
Benign Sensors
only
KM3NET
Safety Radius
1km
4-5 km?
The Junction Box Footprint
<100Km
Suggested Sea Floor Geometry of KM3NeT
91 Towers Regular Hexagon
Suggested Sea Floor Geometry of ES Science Junction boxes
around KM3NeT
A 0 : +2000
Safety Radius
1000m
B -1732: -1000
B +1732: -1000
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
Neptune-Canada
Junction Box
Oceanworks
Tests at Alcatel Greenwich
September 2008
Junction Box (JB) architecture example
Yves Auffret Ifremer
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
Node
or
JB
400VDC + Eth
1000LX (fibre)
1 or 2 fibres (failover, load
balancing,..)
Or
400VDC + xDSL
(few km network
extension)
Switch(es)
CoS, QoS,
PTP
Boundary
clock, VLAN,
LACP, port
Trunk,…
Eth 100BT (copper) – 48VDC – NTP/PTP +
PPS/NMEA
Eth 100BT (copper) – 48VDC – NTP/PTP +
PPS/NMEA
Applications: Ethernet scientific instruments,
ex: Seismometer (OBS), still camera , video,
hydrophone, crawler…
Extension modules
(up to 4 modules):
IP server
RS232/422/485,
VDSL2 modem…
RS232/422/485 – 48VDC – PPS/NMEA
Applications: Serial scientific instruments ex:
ADCP, piezometer (pore pressure sensor) ,
seismometer, CTD, chemical analyzer,…
VDSL2 Modem – 400VDC – NTP/PTP
PTP/IEEE1588 clock client
(PPS + NMEA time code)
Applications: Network extension,
measurements in water column, instrument or
instrument cluster up to 5-6km (low cost
extension (vs. fiber), seismic network, acoustic
network,…
Control/command
October 13th, 2008
Réseaux câblés et systèmes
power supplies
– faults detection
instrumentaux
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
2. Eth 100BT (copper) – 48VDC –
NTP/PTP + PPS/NMEA
Ethernet scientific instruments,
•Seismometer (OBS),
•still camera ,
•video,
•hydrophone,
•crawler…
<1km
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
500-3100m
1000-4500m
3200-5200m
Junction box Mechanical Components
ROV servicable
Connection to
Network Cable
(In case of failure)
Housing
(In case of failure)
Foundation Frame
(permanent)
Observatory & Extension
Manifold
Connections
Wet-mateable
(in case of failure –
6 month service interval)
MARS Concept (Monterey)
Observatories distributed on the sea floor
DELOS Concept (Angola)
Observatory Modules on a frame
Modules serviced
By ROV every 6 months
25 year life
4m
Mud mat Foundations
8m
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