Post on 31-Dec-2015
description
MCCS_SI_05: PI Patch panel ICD and Aircraft Power
Erin SmithSITR – 19 February 2010
• Describes the ‘PI Patch panel’• Resulted from the combination of
MCCS_SI_03 & MCCS_SI_02• Document reflects implementation of the
known Fully Operational Capacity (FOC)– Additional capability may be added to spare
pins on Patch Panel
• MCCS_SI_05 now covers both the ‘MCCS to PI rack’ and ‘SI’ sides of the PI Patch Panel
MCCS_SI_05
MCCS_SI_02
MCCS_SI_03
MCCS_SI_05
Ground Studs
4
PI Rack
MCCS
SI and Counterweight Rack at the TA
Aircraft FORWARD
Science Instrument Electrical Interface Context Diagram
Telescope Assembly
PI Patch Panel
Power
Network
Video
GPS
Power
Signal
PI Rack #1
Experimenter’s Network
(MCCS Rack #5)Printer
NTP Server
Power
Video(MCCS Rack #5)
GPS
IRIG -B( MCCS Rack #5)
Science Instrument
CLA Disconnect Panel
CLA Disconnect Panel
ChopperJ- Box
SI Patch Panel Power (U402 )
Counterweight Rack
MADS Signal
PI Rack #2
Aircraft FWD
SI Side(U400 )
MCCS Side(U401 )
MADS I /O
LegendPowerSignal (Fiber /Ethernet /Coax /Triax /Twisted Pairs )PI HardwareTA HardwarePlatform Hardware
Conference Table
Experimenter’s Network
MADS I /O
Power
SI Patch Panel Signal (U403)
MCCS Side
6
• PI Patch Panel to MCCS Physical and Electrical Interface– Power Interface
– Network Interface
– Audio Interface
– Video Interface
– Sensors and GPS Antenna Interface
7
J0
DOZ9088
50 KHz UPSFrequency converter
Emergency disconnect
Tx RxFiber pairs for experimenters network/video network switch
Fiber pairs for VDS
Fiber pairs for MADS
Not used
100/1000BASE-FX
SI Side• PI Patch Panel To
Science Instrument Physical and Electrical Interface– Communication lines– Signal lines– Power lines
High voltage (GREAT will eventually need for mid- & high-frequency channels)
Coax N-type connector
Coax BNC connector
Fiber pair to SI patch panel
60 Hz power to SI/CWR
75 ohm Coax BNC connector
ICD changes
Section Description Justification
3.2.1.3: Audio Interface Audio interface section removed
MADS connection no longer wired through PI patch panel
3.2.1.4: Analog Video Interface
Analog Video no longer supported
Not part of early science deployment
3.2.1.1: Power interface Numbers updated to reflect current power measurements
On-aircraft Power Supply
Name Power Location Voltage frequency Harmonic distortion
UPS backup
Overload
50Hz 1KVA J0 230 VAC+/- 3%
50 Hz+/- 1%
5% (max) 8 min 1.25 KVA/10 min
Freq Conv
2KVA J1 115 VAC+/- 3%
60 Hz+/- 1%
5% (max)1.5% (typ)
N/A 2.45 KVA/5 min
UPS 2KVA J2 115 VAC+/- 3%
60 Hz+/- 1%
5% (max) 8 min 2.5 KVA/10 min