Part 4: SCM Flight Prototype Specifications

Figure 4.0.01: The flight-qualified SCM weighs 650 grams (<1½ pounds)

Size: 6.5"x 3.75"x 2.75"

Mass: 650 grams

Temperature range:

• Store at: -55°C to 105°C
• Expanded operating range: -24°C to +61°C
• Calibrated operating range: -24°C to 40°C

Power Requirement: Less than 2Watts, 28V (unregulated)

Vibration Tolerance: 14.5 G's (rms) for 3 minutes each orthogonal axis

Radiation Tolerance: Estimated at 50kRads based on components used

EMI: Only preliminary data available. SCM does not produce noticeable EMI

S/C Floating Potential Range: -145 to +45 volts with 0.1 volt precision

Interface: RS422 two-wire differential

Interface Connector: DB-9 (pins 1-5 and 8)

Thermal Control: S/C supplies thermal via to SCM chassis

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