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GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 1
LAT Environmental Test Planning and Design ReviewLAT Environmental Test Planning and Design Review
3-4 May 20053-4 May 2005
LAT EGSE and Cable LayoutsLAT EGSE and Cable Layouts
LAT Environmental Test Planning and Design ReviewLAT Environmental Test Planning and Design Review
3-4 May 20053-4 May 2005
LAT EGSE and Cable LayoutsLAT EGSE and Cable Layouts
Rich BielawskiRich Bielawski
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 2
OutlineOutline
• LAT EGSE– LAT Power and Monitoring
• LAT Power Rack• LAT Control Rack
– VSC• Test Cable Layouts
– High Bay Ops– Vibe– Acoustic– EMI– TVAC
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 3
Power and Monitoring EGSE for LATPower and Monitoring EGSE for LAT
220V 3-phase, 30A, or
similar, tbd
MarwayPower
Distribution Unit
> 25 feet
Emergency Shut-Off
LAT Regulated Bus-Protection UnitLAT-DS-05589(only prime or
redundant can be powered)
XANTREX XFR-35-35 (1.2kW)
110V/17A 220V/9A
28V/28A max
LAT
SIU-Prime 2A max
DAQ-Prime 24A max
DAQ-Redu 24A max
SIU-Redu 2A max
VCHP-Prime 2A max
VCHP-Redu 2A max
Note: DAQ feed includes DAQ-Power and 4 TM’s and 8 VM’s
VCHP feed includes VCHP-Power and 4 VM’s
VSC VME crate
110V/1A
110V or
220V
LAT Unregulated Bus-Protection UnitLAT-DS-06518
(both, prime and redundant can be
powered)
XANTREX XFR-35-35 (1.2kW)
110V/17A 220V/9A
28V/32A max
GRID/Anti-freeze-Prime 16A max
GRID/Anti-freeze-Redu 16A max
110V/1A
110V or
220V
Monitors from U-BPU:V-grid/anti-freeze-prime-VV-grid/anti-freeze-prime-IV-grid/anti-freeze-redu-VV-grid/anti-freeze-redu-I
V-I-T monitors set 2 from LAT-DS-05589
V-I-T monitors set 1 from LAT-DS-05589
110V/xA
Note: I&T presently uses HP6032A which
are ok
SC Interface Temp and Volt. Monitors from LAT
Flyaway sensor monitoring to
separate data-logger system
Crate could be monitored, tbd
marway could be monitored, tbd
LAT Power Rack
Test VME crate
Crate could be monitored, tbd
28-V Bench-supply110V/xA
could be monitored, tbd
Signal-Conversion
Testbox
110V/xA
28-V Bench-supply110V/xA
could be monitored, tbd
V-margin testing
Function Generator110V/xAClock-margin testing
MarwayPower
Distribution Unit
LAT Control Rack
110V/15A or 220V
> 25 feet
Emergency Shut-Off?
To LAT JL39
JL119
JL120
Jl1
JL2
Jl127, JL140
Jl129, JL142
JL133, JL146
Jl136, JL149
Temp-Sensor Bracket (JL123, JL144, JL239, JL152, JL131, JL128),
SIU (JL121, JL122)
Science-Interface cable (JL124, JL125, JL138, JL145)
To LAT JL69
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 4
Regulated Feeds Bus-Protection UnitRegulated Feeds Bus-Protection Unit
Over-Current Switch
Over/UnderVoltage Switch
Override under voltage
On/Off Switch
SIU-Prime
SIU-Redundant
Prime/Redundant Selection
SIU/VCHP Input
A-Meter V-Meter
V-Monitor-SIU
I-Monitor-SIU
VCHP-Prime
VCHP-Redundant
Prime on/off
V-Monitor-VCHP
I-Monitor-VCHP
Over-Current Switch
Over/UnderVoltage Switch
On/Off Switch
DAQ-Prime
DAQ-Redundant
Prime/Redundant Selection
DAQ Input
A-Meter V-Meter
V-Monitor-DAQ
I-Monitor-DAQ
4 Prime + 4 Redu V-Monitors from
HCB
4 Prime + 4 Redu V-Monitors from
HCB
8 Prime + 8 Redu V-Monitors from
DAQ-feed
8 Prime + 8 Redu V-Monitors from
DAQ-feed
4 Prime + 4 Redu T-Monitors from
DAQ-feed
4 Prime +4 Redu T-Monitors from
DAQ-feed
110V AC input 2A AC power to relays and
metersAC Power on/off
(turns-off all AC and low-voltage feeds)
Over-Current Switch
Over/UnderVoltage Switch
A-Meter V-Meter
Override under voltage
Override under voltage
Redundant on/off
P/R on/off
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 5
Unregulated Feeds Bus-Protection UnitUnregulated Feeds Bus-Protection Unit
Over-Current Switch
Over/UnderVoltage Switch
Override under voltage
On/Off Switch
A-Meter V-Meter
On/Off Switch
110V AC input 2A AC power to relays and
metersAC Power on/off
(turns-off all AC and low-voltage feeds)
Over-Current Switch
Over/UnderVoltage Switch
A-Meter V-Meter
Override under voltage
GRID/Anti-Freeze Redu
Power
V-Monitor-Prime-GRID/Anti-Freeze
I-Monitor-Prime-GRID/Anti-Freeze
GRID/Anti-Freeze Prime
Power
I-Monitor-Redu-GRID/Anti-Freeze
V-Monitor-Redu-GRID/Anti-Freeze
GRID/Anti-Freeze Prime Power Input
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 6
VSCVSC
Cable adapter and signal conditioning
To LAT shield
Science interfaces
Primary 1553 interface
GPS receiver
SIU/discrete interface
MVE 2304
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 7
LAT Environmental Test Planning and Design ReviewLAT Environmental Test Planning and Design Review
3-4 May 20053-4 May 2005
Cable LayoutsCable Layouts
LAT Environmental Test Planning and Design ReviewLAT Environmental Test Planning and Design Review
3-4 May 20053-4 May 2005
Cable LayoutsCable Layouts
Rich BielawskiRich Bielawski
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 8
High Bay Cable LayoutHigh Bay Cable Layout
JL-127
LATConnector Savers
JL-119
JL-1
JL-2
JL-121
JL-120
JL-124
JL-129
JL-140
JL-142
JL-122
JL-232
JL-233
JL-234
JL-235
JL-123
JL-144
JL-239
JL-152
JL-131
JL-238
JL-125
JL-138
JL-145
JL-69 (Test Port)
JL-39 (Test Port)
BPU-1
BPU-2
BPU-119
BPU-120
BPU-127
BPU-129
BPU-140
BPU-142
BPU (Reg Pwr)
V121
V122
V232
V233
V234
V235
V124
V125
V138
V145
V152
V131
V238
V123
V144
V239
EC-69
TP-39
VSC
External Crate
Ext TP Interface
LAT-DS-06495
LAT-DS-06495
LAT-DS-06496
LAT-DS-06496
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06498
LAT-DS-06498
LAT-DS-06499
LAT-DS-06499LAT-DS-06499
LAT-DS-06499
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06501
LAT-DS-06502
LAT-DS-06503
LAT-DS-06504
LAT-DS-06502
LAT-DS-06503
LAT-DS-06505
LAT-DS-06506
High Bay Electrical LayoutRev 3
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 9
Cable Layout - High Bay Operations (1/2)Cable Layout - High Bay Operations (1/2)
• Configuration– EGSE may be located inside clean tent if there is room otherwise
it will be located just outside the clean tent– All are point-to-point cables from LAT connector saver to EGSE– No unregulated power cables
• Thermostatically controlled survival heaters will not activate at ambient temperatures
• Unique Cable Requirements– Design cables so that same cable set can be used in Dynamics
and EMI testing• Interfaces
– SC-LAT interface connectors are per the SC-LAT ICD– JL-39 and JL-69 (test ports) are per LAT-DS-02139– BPU interface is per the SC-LAT ICD– VSC, external test point interface, external crate interfaces are
SCSI except for the 1553 interface which is per the SC-LAT ICD
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 10
Cable Layout - High Bay Operations (2/2)Cable Layout - High Bay Operations (2/2)
• Statistics– Cable Count: 26– Drawings Required: 11
• Taking advantage of similar cable designs• Near-Term Tasks
– Create wirelist– Determine cable lengths as these cables will also be used
in other test phases– Begin cable drawings– Procure cable parts i.e. wire, connectors, backshells, etc
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 11
Vibration Test – LAT LPT Cable LayoutVibration Test – LAT LPT Cable Layout
JL-127
LATConnector Savers
JL-119
JL-1
JL-2
JL-121
JL-120
JL-124
JL-129
JL-140
JL-142
JL-122
JL-232
JL-233
JL-234
JL-235
JL-123
JL-144
JL-239
JL-152
JL-131
JL-238
JL-125
JL-138
JL-145
JL-69 (Test Port)
JL-39 (Test Port)
BPU-1
BPU-2
BPU-119
BPU-120
BPU-127
BPU-129
BPU-140
BPU-142
BPU (Reg Pwr)
V121
V122
V232
V233
V234
V235
V124
V125
V138
V145
V152
V131
V238
V123
V144
V239
EC-69
TP-39
VSC
External Crate
Ext TP Interface
LAT-DS-06495
LAT-DS-06495
LAT-DS-06496
LAT-DS-06496
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06498
LAT-DS-06498
LAT-DS-06499
LAT-DS-06499
LAT-DS-06499
LAT-DS-06499
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06501
LAT-DS-06502
LAT-DS-06503
LAT-DS-06504
LAT-DS-06502
LAT-DS-06503
LAT-DS-06505
LAT-DS-06506
Vibe Electrical LayoutRev 2
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 12
Vibration Test – Accel Cable LayoutVibration Test – Accel Cable Layout
LAT
InstrumentationBoom (NRL)
9
7
9
12
EMI Shield(CAL, Ebox)
ACD
TKR
MECH(Grid, Rad, Flex)
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 13
Cable Layout - Vibration Testing (1/2)Cable Layout - Vibration Testing (1/2)
• Configuration– LAT EGSE and test cables are located inside vibe room– During the actual vibe test, all LAT EGSE cables are
demated except for connector savers and accel cables.– LAT is cabled up for LPT’s, i.e. between vibe axes.
• Uses same cables as High Bay Ops.• Unique Cable Requirements
– None
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 14
Cable Layout - Vibration Testing (2/2)Cable Layout - Vibration Testing (2/2)
• Interfaces– Accels
• NRL accel boom interface is BNC• EMI shield interface defined in LAT-DS-02139• Accel cable connectors are defined
– Adaptors are needed in some cases– LAT EGSE test cables
• See High Bay Ops slide• Statistics
– Accels cables • Cable count: 37• Drawings required: 0 (cables are purchased off-the-shelf)
– LAT EGSE test cables• See High Bay Ops slide
• Near-Term Tasks– Accel cables
• Most cables have been procured already– Need to verify quantity
• Need to procure interface adaptors– LAT test cables
• Same as in High Bay Ops slide
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 15
Acoustic Test - LAT LPT Cable LayoutAcoustic Test - LAT LPT Cable Layout
JL-127
LATConnector Savers
JL-119
JL-1
JL-2
JL-121
JL-120
JL-124
JL-129
JL-140
JL-142
JL-122
JL-232
JL-233
JL-234
JL-235
JL-123
JL-144
JL-239
JL-152
JL-131
JL-238
JL-125
JL-138
JL-145
JL-69 (Test Port)
JL-39 (Test Port)
BPU-1
BPU-2
BPU-119
BPU-120
BPU-127
BPU-129
BPU-140
BPU-142
BPU (Reg Pwr)
V121
V122
V232
V233
V234
V235
V124
V125
V138
V145
V152
V131
V238
V123
V144
V239
EC-69
TP-39
VSC
External Crate
Ext TP Interface
LAT-DS-06495
LAT-DS-06495
LAT-DS-06496
LAT-DS-06496
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06498
LAT-DS-06498
LAT-DS-06499
LAT-DS-06499LAT-DS-06499
LAT-DS-06499
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06501
LAT-DS-06502
LAT-DS-06503
LAT-DS-06504
LAT-DS-06502
LAT-DS-06503
LAT-DS-06505
LAT-DS-06506
Acoustic Electrical LayoutRev 1
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 16
Acoustic Test - Accel Cable LayoutAcoustic Test - Accel Cable Layout
LAT
InstrumentationBoom (NRL)
18
7
10
12
EMI Shield(CAL, Ebox)
ACD
TKR
MECH(Grid, Rad, Flex)
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 17
Cable Layout – Acoustic (1/2)Cable Layout – Acoustic (1/2)
• Configuration– LAT EGSE and test cables are located just outside of main
chamber door.– During the actual acoustic test, all LAT test cables are
demated except for connector savers and accel cables.– LAT is cabled up for LPT’s, i.e. pre- and post-test.
• Main chamber door is opened and test cables are routed through doorway to the LAT
• Use same cables as High Bay Ops• Unique Cable Requirements
– None
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 18
Cable Layout – Acoustic (2/2)Cable Layout – Acoustic (2/2)
• Interfaces– Same interfaces as in Vibration Testing slide
• Statistics– Accels cables
• Cable count: 47• Drawings required: 0 (cables are purchased off-the-shelf)
– LAT test cables• See High Bay Ops slide
• Near-Term Tasks – Same as in Vibration Testing slide– Accel cables
• Most cables have been procured already– Need to verify quantity
• Need to procure interface adaptors– LAT test cables
• Same as in High Bay Ops slide
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 19
EMI Radiated – LAT Cable LayoutEMI Radiated – LAT Cable Layout
JL-127
LAT
EMI Chamber WallConnector Savers
JL-119
JL-1
JL-2
JL-121
JL-120
JL-124
JL-129
JL-140
JL-142
JL-122
JL-232
JL-233
JL-234
JL-235
JL-123
JL-144
JL-239
JL-152
JL-131
JL-238
JL-125
JL-138
JL-145VSC
BPU (Reg Pwr)
External Crate
Ext TP Interface
JL-69 (Test Port)
JL-39 (Test Port)
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06498
LAT-DS-06498
LAT-DS-06499
LAT-DS-06499
LAT-DS-06499
LAT-DS-06499
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06501
LAT-DS-06502
LAT-DS-06503
LAT-DS-06504
LAT-DS-06502
LAT-DS-06503
LAT-DS-06505
LAT-DS-06506
EMI Electrical LayoutRev 2
LAT-DS-06495
LAT-DS-06495
LAT-DS-06496
LAT-DS-06496
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 20
Cable Layout – EMI (Radiated)Cable Layout – EMI (Radiated)
• Configuration– LAT EGSE located in control room– LAT cables mated during test
• Cables fed through opening in chamber wall• Uses same cables as High Bay Ops
• Unique Cable Requirements– EMI shielded cables and connector savers are required.
• Interfaces– Same interfaces as in High Bay Ops slide
• Statistics– Same status as in High Bay Ops slide
• Near-Term Tasks– Same status as in High Bay Ops slide
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 21
EMI Conducted – LAT Cable LayoutEMI Conducted – LAT Cable Layout
JL-127
LAT
EMI Chamber WallConnector Savers
JL-119
JL-1
JL-2
JL-121
JL-120
JL-124
JL-129
JL-140
JL-142
TB#1T
B#2
TB#3T
B#4
JL-122
JL-232
JL-233
JL-234
JL-235
JL-123
JL-144
JL-239
JL-152
JL-131
JL-238
JL-125
JL-138
JL-145VSC
BPU (Reg Pwr)
Pri PDU
Pri SIU
Pri +Y VCHP
Red +Y VCHP
Pri -Y VCHP
Red -Y VCHP
Red SIU
Red PDU
External Crate
PWR
Ext TP Interface
JL-69 (Test Port)
JL-39 (Test Port)
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06497
LAT-DS-06498
LAT-DS-06498
LAT-DS-06499
LAT-DS-06499
LAT-DS-06499
LAT-DS-06499
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06500
LAT-DS-06501
LAT-DS-06502
LAT-DS-06503
LAT-DS-06504
LAT-DS-06502
LAT-DS-06503
LAT-DS-06505
LAT-DS-06506
LAT-DS-0XXXX
LAT-DS-0XXXX
LAT-DS-0XXXX
LAT-DS-0XXXX
LAT-DS-0XXXX
LAT-DS-0XXXX
LAT-DS-0XXXX
LAT-DS-0XXXX
EMI Electrical Layout -Conducted Tests
Rev 2
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 22
DAQ Feed Terminal Block (TB 1& 2)DAQ Feed Terminal Block (TB 1& 2)
To LATTo EGSE
Pos Leads
Neg Leads
4 Pairs Temp Mon6 Pairs Volt Mon TB #1 & 2
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 23
SIU Feed Terminal Block (TB 3 & 4)SIU Feed Terminal Block (TB 3 & 4)
To LATTo EGSE
Pos Leads
Neg Leads
TB #3 & 4
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 24
Cable Layout – EMI (Conducted)Cable Layout – EMI (Conducted)
• Configuration– LAT EGSE located in control room– LAT cables mated during test
• Cables fed through opening in chamber wall• Uses same cables as High Bay Ops except for DAQ and SIU power cables
• Unique Cable Requirements– EMI shielded cables and connector savers are required– Need to break-out power leads for DAQ and SIU feeds
• Interfaces– Same interfaces as in High Bay Ops slide except for the DAQ and SIU power cables– DAQ and SIU power cables have an additional intermediate interface to terminal
blocks• Statistics
– Cables required: 22 high bay cables + 8 breakout power cables– Cable drawings required: 4
• Only for unique power cables• Taking advantage of similar cables
• Near-Term Tasks– Work out details of the terminal block interface – Begin cable drawings– Procure cable and terminal block interface parts
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 25
LAT TVAC Electrical LayoutLAT TVAC Electrical Layout
2-4
2-5
3-1
3-2
3-3
3-4
3-5
3-6
3-7
4-1
4-2
4-3
4-4
4-5
4-6
4-7
5-1
5-2
5-3
5-4
5-5
5-6
5-7
6-1
6-2
6-3
6-4
6-5
6-6
6-7
7-4
7-5
7-7
JL-232JL-233JL-234JL-235
LAT
TV Chamber Wall
JL-1
JL-2
JL-133
JL-136
JL-127
JL-129
JL-149
Flyaway TC’s
Removable TC’s
MGSE TC’s
BPU (Reg Pwr)
BPU-119
BPU-120
BPU-1
BPU-2
BPU-133
BPU-136
BPU-127
BPU-129
BPU-140
BPU-142
BPU-146
VSC
BPU-149
V232
V233
V234
V235
V121
V122
V124
V125
V138
V145
V152
V131
V238
V123
V144
V239
NRL-266Flyaway Thermistors
NRL-264Flyaway Thermistors including ACD
Ext Crate EC-69 (Test Port)
TP-39 (Test Port)
7-1
7-2
7-3
7-6
Removable TC’s
MGSE TC’s
Flyaway TC’s
Temp SensorDAQ Sys (NRL)
JL-140
JL-142
JL-146
2-6
LAT TV Electrical Layoutat NRL Rev 7.6
LAT-DS-06460
LAT-DS-06458
LAT-DS-06458
LAT-DS-06458LAT-DS-06458
LAT-DS-06460
LAT-DS-06462
LAT-DS-06464
LAT-DS-06466
LAT-DS-06468
LAT-DS-06468
LAT-DS-06478
LAT-DS-06472
LAT-DS-06472
LAT-DS-06474
LAT-DS-06470
LAT-DS-06470
LAT-DS-06470
LAT-DS-06470
LAT-DS-06480
LAT-DS-06484
LAT-DS-06482
LAT-DS-06488LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488LAT-DS-06488
LAT-DS-06488
LAT-DS-06461
LAT-DS-06461
LAT-DS-06463
LAT-DS-06465
LAT-DS-06459LAT-DS-06459LAT-DS-06459LAT-DS-06459
LAT-DS-06467
LAT-DS-06469
LAT-DS-06469
LAT-DS-06479
LAT-DS-06473
LAT-DS-06473LAT-DS-06475
LAT-DS-06471
LAT-DS-06471
LAT-DS-06471
LAT-DS-06471
LAT-DS-06481
LAT-DS-06487
LAT-DS-06485
LAT-DS-06489
LAT-DS-06491
LAT-DS-06493
Terminal Strip
LAT-DS-06463
LAT-DS-06462
1-7
1-4
1-5
1-3
1-6
2-3
2-1
2-2
LAT-DS-06467
JL-119
JL-120
JL-121
JL-122
2-7
JL-123
JL-144
JL-239
JL-152
JL-131
JL-238
JL-266 (Flyaway Thermistors)
JL-264 (Flyaway Thermistors)
ACD (Flyaway Thermistors)
JL-124
JL-125
JL-138
JL-145
JL-69 (Test Port)
JL-39 (Test Port)
BPU(Unreg Pwr)
Ex TP Inf
1-1A1-1B
1-2B1-2A
LAT-DS-06466
LAT-DS-06476
LAT-DS-06484
LAT-DS-06477
LAT-DS-06483
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 26
Cable Layout – TVAC (1/3)Cable Layout – TVAC (1/3)
• Configuration– EGSE is located near port plates used by LAT– Cables are P2P or breakout into two connectors– Includes unregulated feed cables
• Unique Cable Requirements– Inside chamber cables and connector savers must be TVAC
compatible– Inside chamber cables must be baked out prior to LAT TVAC
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 27
Cable Layout – TVAC (2/3)Cable Layout – TVAC (2/3)
• Interfaces– LAT interface
• SC-LAT interface connectors are per the SC-LAT ICD• JL-39, JL-69, JL-264, JL-266 (test ports) are per LAT-DS-02139• ACD flyaway thermistor connector is TBD
– TC terminal block interface is TBD– Chamber interface
• Copper paths– Feed thru’s: Glenair 257-135-24-61 (61-pin circular)– Mating connector on cables: Amphenol MS3475L2461S
• Thermocouples– Feed thru’s: Deutsch DM5623-37-37PP (37-pin circular)– Mating connector on cables
» Deutsch 13084-37S-5020 (inside chamber)» Deutsch DS07-37S-081 (outside chamber)
– BPU interface is per the SC-LAT ICD– VSC, external test point interface, external crate interfaces are
SCSI except for the 1553 interface which is per the SC-LAT ICD– NRL Thermal Data Acquisition System interface is defined
• NRL is responsible for the thermocouple cables
GLAST LAT Project Env Test Planning, 3-4 May 2005
LAT Environmental Test PDR 28
Cable Layout – TVAC (3/3)Cable Layout – TVAC (3/3)
• Statistics
– Cable count: 72
– Drawings required: 36
• Taking advantage of similar cables
• Near-Term Tasks
– Finalize GSE heater power requirements
– Procure long-lead items ASAP, i.e. chamber feed thru’s
– Close loop with ACD thermistor interface and terminal block interface
– Create wirelist
– Determine cable lengths
– Begin cable drawings
– Procure cable parts i.e. wire, connectors, backshells, etc