1. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 1 LAT Environmental Test Planning and Design Review 3-4 May 2005 LAT EGSE and Cable Layouts LAT Environmental Test Planning and Design Review 3-4 May 2005 LAT EGSE and Cable Layouts Rich Bielawski

2. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 2 Outline LAT EGSE –LAT Power and Monitoring LAT Power Rack LAT Control Rack –VSC Test Cable Layouts –High Bay Ops –Vibe –Acoustic –EMI –TVAC

3. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 3 Power and Monitoring EGSE for LAT

4. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 4 Regulated Feeds Bus-Protection Unit

5. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 5 Unregulated Feeds Bus-Protection Unit

6. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 6 VSC Cable adapter and signal conditioning To LAT shield Science interfaces Primary 1553 interface GPS receiver SIU/discrete interface MVE 2304

7. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 7 LAT Environmental Test Planning and Design Review 3-4 May 2005 Cable Layouts LAT Environmental Test Planning and Design Review 3-4 May 2005 Cable Layouts Rich Bielawski

8. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 8 High Bay Cable Layout

9. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 9 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

10. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 10 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

11. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 11 Vibration Test – LAT LPT Cable Layout

12. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 12 Vibration Test – Accel Cable Layout

13. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 13 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

14. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 14 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

15. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 15 Acoustic Test - LAT LPT Cable Layout

16. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 16 Acoustic Test - Accel Cable Layout

17. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 17 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

18. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 18 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

19. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 19 EMI Radiated – LAT Cable Layout

20. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 20 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

21. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 21 EMI Conducted – LAT Cable Layout

22. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 22 DAQ Feed Terminal Block (TB 1& 2)

23. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 23 SIU Feed Terminal Block (TB 3 & 4)

24. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 24 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

25. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 25 LAT TVAC Electrical Layout

26. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 26 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

27. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 27 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

28. GLAST LAT ProjectEnv Test Planning, 3-4 May 2005 LAT Environmental Test PDR 28 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