Integrated Electronics Module (IEM)
Tiger Innovations, Inc.
Modular, radiation-hardened spacecraft avionics suite combining C&DH and EPS functions, with flight heritage on STPSat-1.
Technical specifications
- Power Consumption
- 24 Watts
- Mass
- < 5.25 kg
- Size
- 7" x 7.125" x 4.437"
- Processor
- RAD-750
- Analog Signals
- 56
- Digital I/O
- 64 Discrete I/O, 12 RS-422 pairs
- Communication Ports
- Up to 12 full duplex serial ports
- Power Switches
- 42 (from < 1 amp to 30 amps)
- Arming Switches
- 4 x 6 amp switches w/ARM
- Solar Array Switches
- 10 x 5 amp switched inputs, 4 x 5 amp unswitched inputs
- Bus Voltage
- 28 +/-6 Volts
- Voltage Regulation
- +3.3V, +/-5V, +/-15V
- Radiation Tolerance
- 100 kRad, SEL immune
- Flight Heritage
- STPSat-1 (launched March 2007)
- Max Configuration - Analog Inputs
- Up to 336
- Max Configuration - Discrete I/O
- Up to 384
- Max Configuration - RS-422 Pairs
- Up to 72
- Max Configuration - Power Switches
- Up to 184
About
Tiger Innovations’ Integrated Electronics Module (IEM) is a complete spacecraft avionics solution encompassing both Command and Data Handling (C&DH) and Electrical Power System (EPS) functions. The IEM consists of multiple circuit cards housing the central processor, analog and digital telemetry processing, payload interface, power management, power switching, solar array control, and voltage regulation functions, implemented in a 3U Compact PCI form factor. The base model IEM has one card dedicated to each function, but its modular design allows additional cards to be added with no new engineering work to meet a wide range of mission requirements. A maximum configuration supports up to 4 switched power cards and 8 additional cPCI cards, providing up to 336 analog inputs, 384 discrete I/O, 72 RS-422 pairs, and 184 power switches. The IEM was first developed for the STPSat-1 spacecraft (launched March 2007) and remains flight-proven, with design improvements incorporating lessons learned to increase capability and performance for subsequent missions.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
