The StackPC Specification defines the approach to stackable systems design and development. The specification includes all valuable heritages of PC/104 standards along with the features of StackPC connector***.
***StackPC Expansion Connectors A, B
• Connector A
PCIe/104 compatible pinout
BANK 1: 4x PCIe x1, 2x USB, SMB
BANK 2,3: 1x PCIe x4, 2x SATA, LPC, 2xGbE, 4x USB, SPI, CAN/RS485/UART
• Connector B
PCI/104 or FPE (Fat Pipe Expansion)
PCI/104: 32-bit PCI 4 masters
FPE: PCIe 1x16/2x8/2x4, Display Port, 6x USB 3.0 or 61x UserIO
PC/104, PC/104+wings, EPIC, EBX, 3.5” Adopted
4 Key Innovations Implemented in StackPC Form-Factor: New system approach, compatibility with other Stackable specifications, COM-type application of StackPC modules and new approach to ruggedize system development.
1. New system approach
- Stack Up Only
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Easy schematic (No signal switches)
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No strict height limitation for CPU & Power modules, bottom side
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Interface module as a standard part
- Compatibility with PCIe/104
- Communication interfaces support through the stack connector
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Minimization of wired connections
- Standardization to System power connector
- New areas of stackable modules application
2. Ruggedized systems orientation
- Design
- IP20, IP65, IP67 enclosures
- Cost effective conduction cooling
- Interface module as a standard part
- Ease of assembly and maintenance
- Compatibility with PC/104-Express
- BANK1 is fully compatible
- BANK2, 3 has levels of full compatibility
- Communication interfaces support through the stack connector
- Minimization of wired connections
3. Compatibility with other Stackable Specifications
- Compatibility with PCIe/104 and PC/104-Express connectors
- Compatibility with PCI/104
4. COM application
- StackPC Host as COM-module
- One side Stack
- One side heatspreader
- COM required interfaces: 4x PCIe x1, 1x PCIe x4, 2x SATA, LPC, 2x GbE, 6x USB, SMB, SPI, CAN/RS485/UART
- PCI: 32-bit PCI 4 masters
- FPE: PCIe 1x16/2x8/2x4, DP, 6x USB 3.0 or 61x UserIO
- StackPC Peripheral as COM-expansion
- Easy to design StackPC carrier board