User manual

Chapter 2 Installation
17
2.7 Power Modules Removal/Replacement
The Power Supply Modules in the FRM220 are available in three versions, one AC and two DC types. The
universal AC version supports input voltages of 90 to 264 volts at frequencies of 47 to 63 Hertz. The DC version
supports either a standard 36 to 72VDC or an optional 18 to 36VDC input voltage. Only one power supply module
is required to power a completely full rack. When two Power Supply Modules are installed, the supplies are hot
swappable and redundant, meaning any one supply may be removed and replaced without impacting the
operation of the FRM220 Rack.
Figure 2-7 Power Modules for FRM220
Power
Modules