FHDPKG Intel, FHDPKG Datasheet - Page 23

• Manufacturer Part Number: FHDPKG
• Manufacturer: Intel

Specifications of FHDPKG

• Lead Free Status / Rohs Status: Supplier Unconfirmed

LED AC1
LED AC2
LED ACR
3.2.2
Figure 12 shows AC inlet, power supply module, and LED designations on 650-W power
subsystem.
3.2.3
The 650-W power subsystem has two AC inlets, AC1 and AC2. AC1 is connected to the inputs of
TPS module #1 (PS1). AC2 shall be connected to the inputs of Module #2 (PS2). Module #3
(PS3) is connected to AC2 through normally closed transfer switch contacts. There could be a
configuration where both AC inlets will be connected to the same AC source (single AC source
operation).
Figure 13 illustrates how the redundant power is implemented using a transfer switch controller.
The transfer switch monitors the relay operation functionality during initial AC turn on and the
presence of all 3 modules.
If AC1 input fails (goes out of specified voltage range), PS2 and PS3 power modules will continue
to operate taking power from the line that remains operational, AC2.
If AC2 input fails, the transfer switch will connect PS3 to AC1 so that PS1 and PS3 power modules
will take power from AC1. Once AC2 recovers, PS3 will be switched into its original state.
Revision 1.0
Marking and Identification
Dual AC Inputs
Figure 12. Power Supply Module, AC Inlet & LED Designations
Module #3
#2
#1
AC1
AC2
13