Temp can also cause problems with dslams mounted at remote locations. They can over heat causing the cards to shut off or burn out. Some dslams also have a temp. monitor on them that will shut the power off to the dslam if it over heats. In my area we have one that has over heated when the ac in the hut when out, this caused the dslam to shut of during the hotter part of the day and come back on at night.
