ACIS Users Guide, Rev. A

5.0 Example Scenarios

This section illustrates how some of the features of the instrument may be used in combination to perform various procedures. such as restarting the instrument after a power-off. The actual procedures used in-flight will probably be different, due to system requirements beyond that of the software, or due to experience developed as the system is used.

5.1 On-Orbit Checkout

The purpose of the on-orbit check-out is to verify that none of the hardware broke during launch and on-orbit insertion.

TBD - Talk to Bob and get a better picture of what should go here. Maybe variation of short-form, long-form?

1. Pre-Power On check of passive analog telemetry and S/C conditions

2. DPA Side-A Power On

3. DPA Voltage, Current and Thermal Check

4. Select BEP A

5. Cold Boot BEP (prior to cold boot after DEA power-on. If a problem arose in commanding DEA after latter cold boot, ya might not know if it was the cold-boot, or the DEA interface which killed ya).

6. Some form of Command Check (e.g. send a "no-op" software command and check that ya gets an echo).

7. ROM Dump and Compare (does a good telemetry check)

8. System Configuration Dump (verify temperature set-points prior to DEA power-on, etc.)

9. FEP Power On Check

10. DPA Voltage, Current, and Thermal Check

11. FEP I-cache Read Check (more to test FEP aliveness than anything else)

12. DEA Side-A Power On

13. DPA/DEA Voltage, Current and Thermal Check

14. Cold-Boot BEP (to load System Configuration Info into newly powered DEA board)

15. Start interface board DEA Housekeeping

16. Check DEA housekeeping info (including relay states)

17. ...