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