Fundamental Technologies Cassini MIMI

Fundamental Technologies

Cassini MIMI Pages

Preliminary Mass Estimate

Note: Estimate does not include box, box mounted connectors, board brackets, analog electronics interface connectors, and eventual spot shielding.

EPU and CPU boards	2 x 310
Memory board	245
LEMMS-BIU I/F board	265
BIU	250
BIU filter board	25**
Motherboard (including Motherboard mounted connectors)	350
BIU cables and connector to Motherboard	60
LEMMS cables and connector to LEMMS I/F board	40
TOTAL:	1855 g

**If we use a DC/DC converter the weight will be increased.

Preliminary Power Estimate

Notes:

1. Microprocessor speed considered is 6 MHz.
2. Booting power is not included.
3. BIU power is not included.
4. Margins are not included.
5. Estimate after measurement of Bread Board power.

EPU Board	186 mA	-->930 mW
CPU Board	186 mA	-->930 mW
Memory Board	30 mA	-->150 mW
LEMMS Board	16 mA	-->150 mW
TOTAL:		1090 mW

MIMI DPU Schedule

Bread Board 1
- 20 Oct 94: I/F tests with A.E./VTT Motor/(LEMMS)
- to 15 Dec 94 tests and validation of the schematics
Bread Board 2 (motherboard + 1 processor board + BIU I/F board + BIU)
- 20 Nov 94: delivery to APL
EM1/EM2
- 15 Dec 94 to 15 Feb 95: board conception and fabrication
- 15 Feb 95 to 15 Mar 95: DPU tests
- 15 Mar 95: I/F test at CESR (LEMMS/Motor/A.E.)
- 10 April 95: delivery EM1 to APL
- 10 April 95 to 1 May 95: update on EM2
- 26-27 April 95: CDR to JPL
- 1 May 95 to 1 June 95: tests and validation hardware
FM
- 1 June 95 to 1 Sept 95: FM fabrication
- 1 Sept 95 to 31 Dec 95: tests
- end Dec 95: delivery to APL

Return to DPU main table of contents page.
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Return to Fundamental Technologies Home Page.

Updated 6/17/08, T. Hunt-Ward
tizby@ftecs.com