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Power Backplanes

PS1250A PS1257 and PS1258 Power Backplane

Technical Details

This board is also designed to accommodate rear power entry modules for 48V applications. Either AC or DC power is supplied to the powerplane by means of a six contact Mate-n-Lok connector. There are 2 ATX-style power connectors on this power plane, for distribution of regulated power to the modular CompactPCI backplanes. The connectors used are Molex “Mini-Fit Jr.” series headers or compatible connectors.

These are the same connectors that are recommended for ATX style PC power supplies. The CompactPCI backplanes will be connected to the power backplanes by means of cable assemblies with mating “Mini-Fit Jr.” receptacles at either end. These wiring harnesses provide +5V, +3.3V, +12V, -12V, GND, and control signals between the two backplanes. These wiring harnesses, the PS1600, can be ordered separately. The PS1247 uses the new P47 power supply connector, as specified in the PICMG2.11 R1.0 Power Interface Specification.

PS1250A 6U 8HP Order Information

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