Intel Entry Redundant Power 2U ERP2U - Manual (Page 9)

SSI
ERP2U Power Supply Design Guide, V1.0
- 9 -
4.2.1 Redundant Cooling
STATUS
Recommended
It is recommended that the power supply cooling be redundant. This means the cooling device is located in the
hot swap power supply modules or there are redundant devices located on the cage.
4.3 Temperature Requirements
STATUS
Recommended
The power supply shall operate within all specified limits over the T
op
temperature range. All airflow shall pass
through the power supply and not over the exterior surfaces of the power supply.
Table 1: Thermal Requirements
ITEM DESCRIPTION MIN MAX UNITS
T
op
Operating temperature range. 0 50 ° C
T
non-op
Non-operating temperature range. -40 70 °
C
The power supply must meet UL enclosure requirements for temperature rise limits. All sides of the power supply
with exception to the air exhaust side, must be classified as “Handle, knobs, grips, etc. held for short periods of
time only”.
5 AC Input Requirements
STATUS
Required
The power supply modules shall incorporate universal power input with active power factor correction, which shall
reduce line harmonics in accordance with the EN61000-3-2 and JEIDA MITI standards.
5.1 AC Inlet Connector
STATUS
Required
The AC input connector shall be an IEC 320 C-14 power inlet. This inlet is rated for 15 A/250 VAC. This
connector may be located on the module or on the cage.
5.2 Redundant AC Inlets
STATUS
Recommended
The power supply assembly may have dual redundant AC inlets. The power supply shall be able to operate over
its full, specified range of requirements with either or both AC input powered. If there is a loss of one AC inlet the