Product category:
VMEbus Boards and Assemblies
News Release from: Aitech Defense Systems | Subject: S703
Edited by the Electronicstalk Editorial
Team on 28 April 2006
Mezzanine I/O card is qualified for
space duties
A space-qualified off-the-shelf PMC I/O card accommodating dual redundant MIL-STD-1553B ports on a standard single-slot PMC is now available from Aitech Defense Systems.
A space qualified, off-the-shelf PMC I/O card accommodating dual redundant MIL-STD-1553B ports on a standard single-slot PMC is now available from Aitech Defense Systems, a world leader in the development and manufacture of board and subsystem level products for harsh environment defense, aerospace and space applications The Aitech S703 MIL-STD-1553B I/O PMC - compliant with the PCI 2.1 interface and optimised for minimum traffic on the host PCIbus - provides fast, high speed access for dual redundant 1553B channel (BC/RT/MT) for low earth orbit (LEO) and Mars terrestrial applications, with an option for geosynchronous orbit (GEO) environments
This article was originally published on Electronicstalk on 15 Mar 2005 at 8.00am (UK)
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Fully radiation qualification tested to well over 35krad (Si) (unshielded), the S703 is categorised as a single-function PCI device, with separate dedicated register sets accessible from the PCI bus to control each of the functional modules integrated on the card.
And, with even a minor amount of spacecraft outer shell or mission computer enclosure shielding, the S703 can survive the radiation rigors of deep space.
The 1553B interface includes a space-rated DDC SpaceAce hybrid device, featuring a dual encoder/decoder, complete MIL-STD-1553B protocol, 32K or 64K words of shared RAM, memory management logic for all three modes (BC/RT/MT), a backplane hardwired or software RT address, and integrated built-in test capability.
Further reading
Compact PCI SBC aims for the stars
A new rad-tolerant conduction-cooled CompactPCI SBC is designed for both manned and robotic space vehicles in harsh space radiation environments.
Mission-critical embedded COTS solutions
Aitech Defense Systems has published a shortform brochure covering a full range of hardware, software and subsystems service for mission-critical COTS applications.
The 1553B channels can be specified as direct coupled or transformer coupled, with I/O available from the backplane.
The onboard, rad-hard, antifuse FPGA and resident interface circuitry can be made to support additional serial port communications capabilities, which could include up to four general-purpose universal asynchronous receiver/transmitter (UART) ports with an RS422 interface.
These user-configurable ports can feature independent programmable port configuration, and the UART logic also features an interrupt mechanism on the PCI bus.
All 1553B bus (and/or optional serial signals) on the card are routed to the PMC I/O connector.
All boards ship with a BC/RT/MT driver library for WindRiver Systems VxWorks.
The S703 PMC is available in three environmental formats: an air- or conduction-cooled engineering software development unit per IEEE1386-2001 and ANSI/VITA20-2001 for installation onto commercial and rugged air-cooled carrier boards; a conduction-cooled space qualified unit; and a conduction-cooled model flight unit for installation onto spaceflight-ready IEEE1101.2 conduction-cooled carrier boards.
The cards are available in three levels of ruggedisation - as an engineering development unit, qual (test) unit and flight qualified unit.
High-power components are cooled by an aluminium heatsink, which also adds to radiation shielding and higher radiation tolerance.
Pricing for the S703 starts at $13,200.
Delivery is from stock, with customisation available within 20 weeks ARO.
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