cPCI-6U-COOL Fan board with up to 12 positions Zero slot fans available
cPCI 6U COOL shown built as the cPCI-6U-Cool -1256R
cPCI-6U-COOL has 12 positions for Fans to be mounted. In a chassis with adequate side wall venting all of the positions can be filled. For a chassis with sealed side walls and lid at most 6 positions should be filled to allow for air re-circulation. The fans can be mounted to blow from the back to the front [Forward] or from front to back [Reverse].
The zero slot fans are designed for low intrustion on either side of the PCB. .105" on the rear for the F model and .08" for the R model. The low profile fans used have 5.2 CFM using 12V. The fans draw 50 mA each for a maximum of 600 mA on the 12V rail with a completely filled board.
Standard profile fans can be used in place of the low profile ones to provide more air flow per fan. Approximately 8 CFM per fan. The current is higher as well. 5V fans are used in place of 12V ones when the current required approaches 1A. The standard profile fans may require a double wide panel in many cases.
With the 6U board oriented with the cPCI connector down and the bezel up; the fans are numbered left to right top to bottom. There are 12 positions in an array. 4 per row and 3 rows. For example cPCI-6U-COOL-F-5678 would have 4 fans installed in the center row and would blow from the solder side to the component side of the Cool board . This will have the effect of blowing on the rear of the card in front of the Cool board. In many cases the R version will be preferred to send air directly on the components of the card behind.
