Datasheet

Intel® Server System SR1550AL Power Sub-system
Revision – 1.3
Intel order number D31982-006
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so that it prevents inserting the module with the power cord plugged in. This will aid the hot-
swapping procedure.
2.4 Hot-swap Support
Hot-swapping a power supply module is the process of extracting and re-inserting a power
supply module from an operating power system. During this process the output voltages shall
remain within specified limits. Up to two power supply modules may be on a single AC line.
The power supply module can be hot-swapped by the following method:
Extraction: on removal, the power cord is unplugged first, and then the power module is
removed. This could occur in standby mode or power-on mode.
Insertion: The module is inserted first and then the power cord is plugged in. The system and
the supply will power on into standby mode or power-on mode.
2.5 Output Cable Harness
The power distribution board connects to the system via a wire harness. The harness size,
connectors, and pin outs are shown below. Listed or recognized component appliance wiring
material (AVLV2), CN, Rated 105°C Min, 300Vdc Min shall be used for all output wiring.
Table 2. Power Harness Cable Definitions
Connector #
No of
pins
Description
P1
2x12 Main Power Connector
P2
2x4 Processor Power Connector
P3
1x5 Baseboard Signal Connector
P4
2x4 Backplane Power Connector
P5
2x5 Mid-plane Power Connector
2.5.1 P1 – Baseboard Power Connector
Connector housing: 24- Pin Molex* Mini-Fit Jr. 39-01-2245 or equivalent
Contact: Molex Mini-Fit, HCS, Female, Crimp 44476 or equivalent
Table 3. P1 Main Power Connector
PIN SIGNALS 18 AWG COLOR PIN SIGNAL
18 AWG
COLORS
1 +3.3 VDC Orange 13 +3.3 VDC Orange
2 +3.3 VDC Orange 14
-12 VDC
Blue
3 COM (GND) Black 15 COM Black
4* 5 VDC Red 16 PS_ON# Green
5V RS Red (24 AWG) 17 COM Black
5 COM Black 18 COM Black
6 +5 VDC Red 19 COM Black
7 COM Black 20 Reserved (-5V in ATX) N.C.
8 PWR OK Gray 21 +5 VDC Red
9 5Vsb Purple 22 +5 VDC Red
10 +12 V3 Yellow/Blue 23 +5 VDC Red
11 +12 V3 Yellow/Blue 24 COM Black
12 +3.3 VDC Orange