3U VPXLOAD BOARD
DESCRIPTION
The Elma VPX load board is designed to be compliant with ANSI/VITA
mechanical and electrical connection standards. Developed to enhance
testing of VPX systems, the load board aids the system designer in assuring
adequate chassis cooling and verifying that the VPX chassis is capable of
meeting the power requirements of the system (or VITA specs). The load
board functions to test a system’s cooling capabilities by first applying the
load to the power supply for verification and creating the necessary heat
to confirm chassis cooling. By locating hot spots in the chassis,a system
designer can verify where to optimally redirect the airflow to prevent over
heating. The load board increases productivity by quickly and accurately
characterizing systems at low cost.
The 3U VPX load card features a microcontroller-based stepped load
control. Therotary switch selects the voltage setting while pushing the ON
switch will cycle between different power levels shown on the LED display.
The set load power levels are saved in EEPROM. The design is RoHS
compliant and has an operatingtemperature range of 0 degrees C to 70
degrees C.
Features
■
■ Load board for VPX systems, meets ANSI/VITA 46 mechani
cal and electrical connection standards
■
■ Convection and conduction-cooled versions available
■
■ Verifies chassis can meet power requirement and specifica
tions for VPX
■
■ Assists in locating hot spots in the chassis
■ Go/No-Go indicators for 12V, 3.3V, 5V, +12V_Aux, -12V_Aux & 3.3V_Aux.
■
■ Two test point outputs and microcontroller- based rotary
switch selector for voltage settings, markings for SIG and
GND
■
■
■ Power reset button (to minimum level), SYSRESET signal on
the two test point outputs
■
■ Power level LED (1, 2, and 3) and push button (Step UP)
indications
■
■ RoHS compliant
■
■ 6U versions are also available
