Cabletron Systems PSM-R is a universal Power Supply Module that does not require any manual adjustment to select between 110 and 220V input power. This power supply will operate with any input power ranging from 90 to 264 VAC. The universal PSM-R is compatible with MMAC-3, MMAC-5, and MMAC-8 devices. It provides +5 Vdc +1%, +12 Vdc +6%, -5 Vdc +3%, and -9 Vdc +3% output voltage. Each 150 Watt power supply unit is equipped with one 250 V, 3.5 Amp fuse. The MMAC-5/FNB incorporates LANVIEW LEDs that indicate the status of the Power Supply Module.