Instruction Manual

Instruction Manual
4
Power Module Addition/Removal
The AC Power Supply Module in the ETCHS2U supports input voltages of 100 to 240
(±10% @ ambient temperature) volts at frequencies of 47 to 63 Hertz. Only one power
supply module is required to power a completely full rack; however an additional
ETCHS2PSU unit can be added for redundancy. When two Power Supply Modules are
installed, the supplies are hot swappable, meaning any one supply may be removed
and replaced without impacting the operation of the chassis. Simply disconnect power
from the unit to be removed, and loosen the thumbscrews from each side of the
module to gently slide out.