Unpowered telenodes explode after a while
If you enter a cvar on the server console, it will tell you the default value (US1/EU1 should be using defaults):
g_humanStage2Threshold = 6000, g_humanStage3Threshold = 12000, g_alienStage2Threshold = 12000, g_alienStage3Threshold = 24000
g_alienBuildPoints = 150, g_humanBuildPoints = 100, g_humanRepeaterBuildPoints = 20
(Those are not in serverinfo)