Transcript ppt

GLAST LAT Project
Env Test Planning, 3-4 May 2005
LAT Environmental Test Planning and Design Review
3-4 May 2005
LAT EGSE and Cable Layouts
Rich Bielawski
LAT Environmental Test PDR
1
GLAST LAT Project
Env Test Planning, 3-4 May 2005
Outline
• LAT EGSE
– LAT Power and Monitoring
• LAT Power Rack
• LAT Control Rack
– VSC
• Test Cable Layouts
– High Bay Ops
– Vibe
– Acoustic
– EMI
– TVAC
LAT Environmental Test PDR
2
GLAST LAT Project
Env Test Planning, 3-4 May 2005
Power and Monitoring EGSE for LAT
Clock-margin testing
110V/xA
Function Generator
could be monitored, tbd
110V/xA
28-V Bench-supply
V-margin testing
could be monitored, tbd
Marway
Power
Distribu
tion
Unit
> 25 feet
110V/15A or
220V
110V/xA
SignalConversion
Testbox
To
LAT
JL39
28-V Bench-supply
Crate could be monitored, tbd
To
LAT
JL69
Test VME crate
110V/xA
SIU (JL121, JL122)
Temp-Sensor
Bracket (JL123,
JL144, JL239,
JL152, JL131,
JL128),
Crate could be monitored, tbd
SC Interface Temp and Volt. Monitors from LAT
110V/xA
Emergency
Shut-Off?
VSC VME crate
V-I-T monitors set 1
from LAT-DS-05589
Science-Interface
cable (JL124, JL125,
JL138, JL145)
V-I-T monitors set 2
from LAT-DS-05589
LAT Control Rack
LAT Power Rack
110V
or
220V
marway could be
monitored, tbd
Marway
Power
Distribution
Unit
> 25 feet
28V/28A
max
110V/1A
110V
or
220V
XANTREX XFR-35-35
(1.2kW)
110V/17A 220V/9A
28V/32A
max
SIU-Prime 2A max
JL119
SIU-Redu 2A max
JL120
DAQ-Prime 24A max
Jl1
DAQ-Redu 24A max
JL2
VCHP-Prime 2A max
Jl127, JL140
VCHP-Redu 2A max
Jl129, JL142
LAT Unregulated BusProtection Unit
LAT-DS-06518
(both, prime and
redundant can be
powered)
GRID/Anti-freeze-Prime 16A max
JL133, JL146
GRID/Anti-freeze-Redu 16A max
Jl136, JL149
110V/1A
Note: I&T presently
uses HP6032A which
are ok
LAT Environmental Test PDR
LAT
Note: DAQ feed includes DAQ-Power
and 4 TM’s and 8 VM’s
VCHP feed includes VCHP-Power
and 4 VM’s
Monitors from U-BPU:
V-grid/anti-freeze-prime-V
V-grid/anti-freeze-prime-I
V-grid/anti-freeze-redu-V
V-grid/anti-freeze-redu-I
220V
3-phase,
30A, or
similar, tbd
Emergency
Shut-Off
XANTREX XFR-35-35
(1.2kW)
110V/17A 220V/9A
LAT Regulated BusProtection Unit
LAT-DS-05589
(only prime or
redundant can be
powered)
Flyaway sensor
monitoring to
separate data-logger
system
3
GLAST LAT Project
Env Test Planning, 3-4 May 2005
Regulated Feeds Bus-Protection Unit
Override under
voltage
Over/Under
Voltage Switch
Over-Current
Switch
Prime/
Redundant
Selection
SIU-Prime
SIU-Redundant
On/Off Switch
A-Meter
V-Meter
SIU/VCHP
Input
V-Monitor-SIU
I-Monitor-SIU
Override under
voltage
Over/Under
Voltage Switch
Over-Current
Switch
Prime on/off
VCHP-Prime
Redundant on/off
V-Meter
A-Meter
VCHP-Redundant
P/R on/off
V-Monitor-VCHP
I-Monitor-VCHP
4 Prime + 4 Redu
V-Monitors from
HCB
4 Prime + 4 Redu
V-Monitors from
HCB
Override under
voltage
Over-Current
Switch
Prime/
Redundant
Selection
Over/Under
Voltage Switch
DAQ-Prime
DAQ Input
DAQ-Redundant
On/Off Switch
A-Meter
V-Meter
V-Monitor-DAQ
I-Monitor-DAQ
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
110V AC input
4 Prime + 4 Redu
T-Monitors from
DAQ-feed
2A
AC Power on/off
(turns-off all AC and
low-voltage feeds)
LAT Environmental Test PDR
AC power to
relays and
meters
4
GLAST LAT Project
Env Test Planning, 3-4 May 2005
Unregulated Feeds Bus-Protection Unit
Override under
voltage
Over/Under
Voltage Switch
Over-Current
Switch
GRID/AntiFreeze Prime
Power
On/Off Switch
A-Meter
V-Meter
GRID/AntiFreeze Prime
Power Input
V-Monitor-Prime-GRID/AntiFreeze
I-Monitor-Prime-GRID/AntiFreeze
Override under
voltage
Over/Under
Voltage Switch
Over-Current
Switch
GRID/AntiFreeze Redu
Power
On/Off Switch
A-Meter
110V AC input
V-Meter
V-Monitor-Redu-GRID/AntiFreeze
I-Monitor-Redu-GRID/AntiFreeze
2A
AC Power on/off
(turns-off all AC and
low-voltage feeds)
LAT Environmental Test PDR
AC power to
relays and
meters
5
GLAST LAT Project
Env Test Planning, 3-4 May 2005
VSC
MVE 2304
Cable adapter and
signal conditioning
To LAT
shield
Primary 1553
interface
GPS
receiver
Science
interfaces
SIU/discrete
interface
LAT Environmental Test PDR
6
GLAST LAT Project
Env Test Planning, 3-4 May 2005
LAT Environmental Test Planning and Design Review
3-4 May 2005
Cable Layouts
Rich Bielawski
LAT Environmental Test PDR
7
GLAST LAT Project
Env Test Planning, 3-4 May 2005
High Bay Cable Layout
BPU (Reg Pwr)
BPU-1
BPU-2
BPU-119
BPU-120
BPU-127
BPU-129
BPU-140
BPU-142
VSC
V121
V122
V232
V233
V234
V235
V124
V125
V138
V145
V152
V131
V238
Ext TP Interface
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
V123
LAT-DS-06504
V144
LAT-DS-06502
V239
External Crate
Connector Savers
LAT-DS-06495
EC-69
TP-39
LAT-DS-06503
LAT-DS-06505
LAT-DS-06506
LAT
JL-1
JL-2
JL-119
JL-120
JL-127
JL-129
JL-140
JL-142
JL-121
JL-122
JL-232
JL-233
JL-234
JL-235
JL-124
JL-125
JL-138
JL-145
JL-152
JL-131
JL-238
JL-123
JL-144
JL-239
JL-69 (Test Port)
JL-39 (Test Port)
High Bay Electrical Layout
Rev 3
LAT Environmental Test PDR
8
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
9
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
10
GLAST LAT Project
Env Test Planning, 3-4 May 2005
Vibration Test – LAT LPT Cable Layout
BPU (Reg Pwr)
BPU-1
BPU-2
BPU-119
BPU-120
BPU-127
BPU-129
BPU-140
BPU-142
VSC
V121
V122
V232
V233
V234
V235
V124
V125
V138
V145
V152
V131
V238
Ext TP Interface
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
V123
LAT-DS-06504
V144
LAT-DS-06502
V239
External Crate
Connector Savers
LAT-DS-06495
EC-69
TP-39
LAT-DS-06503
LAT-DS-06505
LAT-DS-06506
LAT
JL-1
JL-2
JL-119
JL-120
JL-127
JL-129
JL-140
JL-142
JL-121
JL-122
JL-232
JL-233
JL-234
JL-235
JL-124
JL-125
JL-138
JL-145
JL-152
JL-131
JL-238
JL-123
JL-144
JL-239
JL-69 (Test Port)
JL-39 (Test Port)
Vibe Electrical Layout
Rev 2
LAT Environmental Test PDR
11
GLAST LAT Project
Env Test Planning, 3-4 May 2005
Vibration Test – Accel Cable Layout
LAT
EMI Shield
(CAL, Ebox)
12
ACD
9
Instrumentation
Boom (NRL)
TKR
7
MECH
(Grid, Rad, Flex)
9
LAT Environmental Test PDR
12
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
13
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
14
GLAST LAT Project
Env Test Planning, 3-4 May 2005
Acoustic Test - LAT LPT Cable Layout
BPU (Reg Pwr)
BPU-1
BPU-2
BPU-119
BPU-120
BPU-127
BPU-129
BPU-140
BPU-142
VSC
V121
V122
V232
V233
V234
V235
V124
V125
V138
V145
V152
V131
V238
Ext TP Interface
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
V123
LAT-DS-06504
V144
LAT-DS-06502
V239
External Crate
Connector Savers
LAT-DS-06495
EC-69
TP-39
LAT-DS-06503
LAT-DS-06505
LAT-DS-06506
LAT
JL-1
JL-2
JL-119
JL-120
JL-127
JL-129
JL-140
JL-142
JL-121
JL-122
JL-232
JL-233
JL-234
JL-235
JL-124
JL-125
JL-138
JL-145
JL-152
JL-131
JL-238
JL-123
JL-144
JL-239
JL-69 (Test Port)
JL-39 (Test Port)
Acoustic Electrical Layout
Rev 1
LAT Environmental Test PDR
15
GLAST LAT Project
Env Test Planning, 3-4 May 2005
Acoustic Test - Accel Cable Layout
LAT
EMI Shield
(CAL, Ebox)
12
ACD
10
Instrumentation
Boom (NRL)
TKR
7
MECH
(Grid, Rad, Flex)
18
LAT Environmental Test PDR
16
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
17
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
18
GLAST LAT Project
Env Test Planning, 3-4 May 2005
EMI Radiated – LAT Cable Layout
EMI Chamber Wall
Connector Savers
LAT-DS-06495
LAT-DS-06495
LAT-DS-06496
LAT-DS-06496
BPU (Reg Pwr)
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
VSC
LAT-DS-06500
LAT-DS-06501
LAT-DS-06502
LAT-DS-06503
LAT-DS-06504
LAT-DS-06502
LAT-DS-06503
LAT
JL-1
JL-2
JL-119
JL-120
JL-127
JL-129
JL-140
JL-142
JL-121
JL-122
JL-232
JL-233
JL-234
JL-235
JL-124
JL-125
JL-138
JL-145
JL-152
JL-131
JL-238
JL-123
JL-144
JL-239
External Crate
LAT-DS-06505
JL-69 (Test Port)
Ext TP Interface
LAT-DS-06506
JL-39 (Test Port)
EMI Electrical Layout
Rev 2
LAT Environmental Test PDR
19
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
20
GLAST LAT Project
Env Test Planning, 3-4 May 2005
EMI Conducted – LAT Cable Layout
EMI Chamber Wall
Connector Savers
LAT-DS-0XXXX
LAT-DS-0XXXX
T
B
#2
LAT-DS-0XXXX
LAT-DS-0XXXX
BPU (Reg Pwr)
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
VSC
LAT-DS-06500
LAT-DS-06501
LAT-DS-06502
LAT-DS-06503
LAT-DS-06504
LAT-DS-06502
LAT-DS-06503
T
B
#4
T
B
#1
LAT-DS-0XXXX
LAT-DS-0XXXX
T
B
#3
LAT-DS-0XXXX
LAT-DS-0XXXX
LAT
JL-1 Pri PDU
JL-2 Red PDU
JL-119 Pri SIU
JL-120 Red SIU
PWR
JL-127
Pri +Y VCHP
JL-129 Red +Y VCHP
JL-140 Pri -Y VCHP
JL-142 Red -Y VCHP
JL-121
JL-122
JL-232
JL-233
JL-234
JL-235
JL-124
JL-125
JL-138
JL-145
JL-152
JL-131
JL-238
JL-123
JL-144
JL-239
External Crate
LAT-DS-06505
JL-69 (Test Port)
Ext TP Interface
LAT-DS-06506
JL-39 (Test Port)
EMI Electrical Layout Conducted Tests
Rev 2
LAT Environmental Test PDR
21
GLAST LAT Project
Env Test Planning, 3-4 May 2005
DAQ Feed Terminal Block (TB 1& 2)
Pos Leads
To EGSE
To LAT
Neg Leads
4 Pairs Temp Mon
6 Pairs Volt Mon
LAT Environmental Test PDR
TB #1 & 2
22
GLAST LAT Project
Env Test Planning, 3-4 May 2005
SIU Feed Terminal Block (TB 3 & 4)
Pos Leads
To EGSE
To LAT
Neg Leads
TB #3 & 4
LAT Environmental Test PDR
23
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
24
GLAST LAT Project
Env Test Planning, 3-4 May 2005
LAT TVAC Electrical Layout
TV Chamber Wall
LAT-DS-06458
LAT-DS-06458
LAT-DS-06458
LAT-DS-06458
BPU (Reg Pwr)
BPU-1
1-1A
1-1B
1-2A
1-2B
LAT-DS-06460
1-3
LAT-DS-06459
LAT-DS-06459
LAT-DS-06459
LAT-DS-06459
JL-232
JL-233
JL-234
JL-235
JL-1
1-4
BPU-2
1-5
LAT-DS-06460
LAT-DS-06461
JL-2
1-6
1-7
BPU-127
BPU-129
BPU-140
BPU-142
BPU-119
BPU-120
LAT-DS-06462
LAT-DS-06462
LAT-DS-06464
LAT-DS-06466
LAT-DS-06466
LAT-DS-06468
BPU
(Unreg Pwr)
BPU-133
LAT-DS-06468
2-2
2-3
2-4
2-5
2-6
2-7
JL-127
LAT-DS-06463
JL-129
LAT-DS-06463
JL-140
LAT-DS-06465
LAT-DS-06467
JL-142
LAT-DS-06467
JL-119
LAT-DS-06469
JL-120
LAT-DS-06469
JL-133
BPU-136
BPU-146
LAT-DS-06470
BPU-149
LAT-DS-06470
LAT-DS-06470
VSC
V121
V235
V122
V234
V124
V125
V233
LAT-DS-06470
LAT-DS-06472
LAT-DS-06474
LAT-DS-06476
V138
V232
V145
V131
V152
LAT-DS-06478
LAT-DS-06472
LAT-DS-06480
V238
V123
V239
V144
Ext Crate
2-1
3-1
3-2
3-3
3-4
3-5
LAT-DS-06471
JL-136
LAT-DS-06471
JL-146
LAT-DS-06471
LAT-DS-06471
JL-149
LAT-DS-06473
LAT-DS-06475
JL-121
3-6
3-7
4-1
4-2
4-3
LAT
LAT-DS-06461
JL-122
LAT-DS-06477
JL-124
LAT-DS-06479
JL-125
LAT-DS-06473
JL-138
LAT-DS-06481
JL-145
4-4
LAT-DS-06482
LAT-DS-06484
LAT-DS-06484
4-5
4-6
4-7
LAT-DS-06483
JL-131
LAT-DS-06485
JL-152
LAT-DS-06487
JL-238
EC-69 (Test Port)
Ex TP Inf
TP-39 (Test Port)
5-1
JL-123
5-2
JL-239
5-3
JL-144
5-4
JL-69 (Test Port)
5-5
NRL-266
Flyaway Thermistors
5-6
JL-39 (Test Port)
5-7
JL-266 (Flyaway Thermistors)
NRL-264
Flyaway Thermistors including ACD
Flyaway TC’s
LAT-DS-06488
LAT-DS-06488
6-2
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
MGSE TC’s
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
Removable TC’s
LAT-DS-06488
LAT-DS-06488
LAT-DS-06488
Temp Sensor
DAQ Sys (NRL)
LAT Environmental Test PDR
JL-264 (Flyaway Thermistors)
6-1
6-5
6-6
6-7
LAT-DS-06489
7-1
LAT-DS-06491
7-2
7-3
LAT-DS-06493
Terminal Strip
Flyaway TC’s
MGSE TC’s
Removable TC’s
7-4
7-5
7-6
LAT-DS-06488
ACD (Flyaway Thermistors)
6-3
6-4
7-7
LAT TV Electrical Layout
at NRL Rev 7.6
25
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
26
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
27
GLAST LAT Project
Env Test Planning, 3-4 May 2005
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
LAT Environmental Test PDR
28