SUMIT single board computers

Stackable unified module interconnect technology (SUMIT) is an I/O centric expansion approach that includes both high- and low-speed bus signals.

Signals supported by the SUMIT specification include PCIe, USB, LPC, SPI, SMBus and ExpressCard, all on one high-speed connector.

An optional second connector supports additional PCle lanes. Combined with an optional ISA connector to support legacy PC/104 expansion modules, VersaLogic's SUMIT-EBX, SUMIT-EPIC and SUMIT-104 platforms offer both.

It makes expansion easy, especially for custom I/O modules, by providing access to a variety of low- and high-speed signals in a compact high connector.

The system is claimed to be the next stage of evolution for the PC-104 standard; the introduction of PCIe bus to the standard keeps this small rugged form factor in line with current technologies and gives industry users a product longevity required for the higher-end embedded systems in medical, military and mining applications.