The PMC form-factor is the standard for adding modular functionality
to PCI, cPCI, or VME boards. At about 4" x 6", PMC boards are small,
compact, and comply with the popular and widespread PMC mechanical
form-factor and local PCI bus electrical interface. In many cases,
PMC boards use completely surface mount components, including
connectors, and have components on both sides of the board, to
increase performance density.
The PTMC standard is a PMC-variant, with the "T" meaning Telecom.
PTMC boards adhere to the same mechanical form-factor as PMC, but
define connectors PN3 and PN4 for telecom standards, instead of
arbitrary user I/O.
For applications demanding DSP and telecom in a small footprint,
the SigXXX-PMC series of boards makes it possible. The PMC boards
listed below are fully supported by DirectDSP®
software, which offers programming interface to C/C++ programs running
under Linux and WinXP.