Elma Bustronic Corp.'s 6U VPX Load Board in a conduction-cooled
format is designed per the IEEE standard 1101.2 mechanical
conduction-cooled VPX load board helps confirm the chassis meets the VITA
46/48/65 power specifications for VPX and aids in locating hot spots within the
enclosure. It helps test a system's cooling
capabilities by applying the load to the power supply for verification and
creating the necessary heat to confirm chassis cooling. The board features external voltage monitoring, load
stepping, and GO-NO-GO indicator LEDs.
The conduction-cooled load card
has a microcontroller-based stepped load control to 100W maximum. The
voltage rotary switch has settings for 3.3, 5, 12V, +12V_Aux, - 12 /
48V, and Sys Reset. The set load power levels are saved in EEPROM. Bustronic
also offers VPX load boards in a 3U form factor and 6U air cooled formats.
The implementation of a new diesel fuel standard in the US has considerably improved the environmental performance of diesel vehicles. The Environmental Protection Agency (EPA) says that the new ultra-low sulfur diesel (ULSD) fuel has combined with other improved technologies to reduce diesel's particulate matter (PM) emissions by 99%.
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