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Ballard Technology Inc. has introduced its latest MIL-STD-1553 PMC product, its PMC 141. This OmniBus PMC card offers a rugged, conduction-cooled solution for MIL-STD-1553 applications. Ballard's PMC card is also available in a commercial version. Both offer users a monarch/non-monarch PrPMC with DMA and 1 or 2 dual redundant MIL-STD-1553 interfaces at an affordable cost.

"The user can decide on one or two dual-redundant 1553 interfaces and then use the PowerPC function to handle responses, interact with other cards or just have the PrPMC as back-up," said Bill Schuh, vice president of sales and marketing.

"This product is a powerful MIL-STD-1553 interface in its own right with an option of using a PrPMC for I/O and control," he added. 

The OmniBus 1553 PMC can be used as a peripheral for a host processor system or it can operate as a stand-alone device using the PowerPC embedded processor. The MIL-STD-1553 channels are implemented as hardware modules external to the processor. This results in the user having full use of the processor while protocol operations are autonomously performed in hardware. The OmniBus architecture ensures all schedules will be maintained and all data will be received on fully loaded MIL-STD-1553 databuses. Transmit schedules, message structures and sequential monitor records are all stored in shared memory, accessible by the processor and the protocol hardware. A DMA mode is provided for efficiently transferring data from the onboard sequential monitor to the host computer.