Parvus’s 2004 SpacePC PC/104 lineup comprised the 2200, 2110, and 2100 series: a 75-MHz 486DX board, a 40-MHz 386-based board, and a model distinguished by onboard Ethernet, digital I/O, and CAN ports. The announcement also described fanless operation, soldered RAM, low power consumption, and extended-temperature availability. Those are historical specifications, not confirmation that the boards remain available or that a current PC/104 board can replace them.
What boards were in the Parvus SpacePC lineup?
A 2004 Electronic Design report identified three series: SpacePC 2200, SpacePC 2110, and SpacePC 2100. They were PC/104 CPU boards intended for embedded applications. The report’s specifications and pricing describe the products at that time; they should not be read as current availability or support information.
SpacePC 2200: 486DX and broad onboard I/O
The 2200 used a 75-MHz STPC 486DX processor. The report lists SVGA, 10/100 Ethernet, four serial ports, IDE, floppy, parallel, and keyboard ports.
SpacePC 2100: 386-based ALi processor
The 2100 used a 40-MHz ALi M6117C processor described as 386-based. Its I/O was reported as similar to the 2200, but the report does not enumerate a separate port-by-port specification for this model.
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SpacePC 2110: Ethernet, DIO, and CAN
The report does not specify the 2110’s processor. It identifies onboard Ethernet, 16 general-purpose digital I/O (DIO) channels, and two CAN 2.0B ports as its distinguishing features.
How the reported specifications compare
| Series | Processor reported in 2004 | Reported I/O or differentiators |
|---|---|---|
| SpacePC 2200 | 75-MHz STPC 486DX | SVGA; 10/100 Ethernet; four serial ports; IDE, floppy, parallel, and keyboard ports |
| SpacePC 2100 | 40-MHz ALi M6117C, 386-based | I/O described as similar to the 2200; individual ports not separately specified in the report |
| SpacePC 2110 | Not specified in the available report | Onboard Ethernet; 16 general-purpose DIO channels; two CAN 2.0B ports |
What ruggedized meant in the announcement
Electronic Design reported that the latest models operated without fans, used soldered RAM, consumed 3 W to 7 W, and were available in extended-temperature ranges from −40°C to +85°C. The report excerpt does not assign each of these characteristics to each series, so they should be treated as lineup-level claims rather than per-model guarantees. These are reported 2004 specifications, not independently verified current operating limits.
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Historical price and present-day availability
Electronic Design reported volume pricing of $193 to $327 per board at a quantity of 100 in 2004. That is historical pricing, not a current quote or indication of present stock.
ADLINK’s PC/104 single-board computer product-family page shows that PC/104 products remain in manufacturer catalogs, and some listings carry end-of-life labels. It does not establish that the Parvus SpacePC 2200, 2110, or 2100 is still sold, nor does it identify a compatible replacement.
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What to check when looking for a replacement
A board described as a PC/104 product is not automatically a drop-in substitute for one of these legacy models. Check the exact documentation for the candidate and the system it must fit:
- Bus and physical fit: Confirm PC/104 bus compatibility, connector arrangement, dimensions, and mounting requirements against the installed hardware.
- Required interfaces: Match the actual needs for serial ports, Ethernet, display, storage, parallel or keyboard connections, DIO, and CAN. The 2110’s CAN and DIO features may matter more than processor family in systems that depend on them.
- Power and thermal conditions: Verify the candidate’s documented power requirements and operating-temperature range for the intended enclosure and environment; do not assume the historical lineup’s reported figures apply to another board.
- Lifecycle and supply: Check whether the exact model is active, end-of-life, or available only through remaining inventory, and confirm support and sourcing directly with the manufacturer or seller.
ADLINK’s catalog is a place to inspect current PC/104 listings, not proof of direct compatibility. Its page also includes end-of-life labels for some products, so verify the status of any specific model before designing around it.
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