Intel DC53427HYE Technical Product Specification - Page 49

Power Supply Connectors, 2.2.4, Front Panel Header

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Technical Reference 2.2.2.3 Power Supply Connectors The board has the following power supply connectors: • External Power Supply - the board can be powered through a 19 V DC connector on the back panel. The back panel DC connector is compatible with a 5.5 mm/OD (outer diameter) and 2.5 mm/ID (inner diameter) plug, where the inner contact is +19 (±10%) V DC and the shell is GND. The maximum current rating is 10 A. • Internal Power Supply - the board can alternatively be powered via the internal 19 V DC 1 x 2 power connector, where pin 1 is GND and pin 2 is +19 (±10%) VDC. The internal 1 x 2 power connector is a Molex 5566-2 header which accepts a Molex 5557-02R connector from the power supply. Table 13. 19 V Internal Power Supply Connector Pin Signal Name 1 Ground 2 +19 V (±10%) For information about Power supply considerations Refer to Section 2.5.1, page 56 2.2.2.4 Front Panel Header This section describes the functions of the front panel header. Table 14 lists the signal names of the front panel header. Figure 11 is a connection diagram for the front panel header. Table 14. Front Panel Header Pin Signal Name Description 1 HDD_POWER_LED Pull-up resistor (750 Ω) to +5V 3 HDD_LED# [Out] Hard disk activity LED 5 GROUND Ground 7 RESET_SWITCH# [In] Reset switch 9 +5V_DC Power Pin Signal Name 2 POWER_LED_MAIN 4 POWER_LED_ALT 6 POWER_SWITCH# 8 GROUND 10 Key Description [Out] Front panel LED (main color) [Out] Front panel LED (alt color) [In] Power switch Ground No pin 49

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Technical Reference
49
2.2.2.3
Power Supply Connectors
The board has the following power supply connectors:
•
External Power Supply
– the board can be powered through a 19 V DC connector
on the back panel.
The back panel DC connector is compatible with a 5.5 mm/OD
(outer diameter) and 2.5 mm/ID (inner diameter) plug, where the inner contact is
+19 (±10%) V DC and the shell is GND.
The maximum current rating is 10 A.
•
Internal Power Supply
– the board can alternatively be powered via the internal
19 V DC 1 x 2 power connector, where pin 1 is GND and pin 2 is +19 (±10%) VDC.
The internal 1 x 2 power connector is a Molex 5566-2 header which accepts a
Molex 5557-02R connector from the power supply.
Table 13.
19 V Internal Power Supply Connector
Pin
Signal Name
1
Ground
2
+19 V (±10%)
For information about
Refer to
Power supply considerations
Section 2.5.1, page 56
2.2.2.4
Front Panel Header
This section describes the functions of the front panel header.
Table 14 lists the signal
names of the front panel header.
Figure 11 is a connection diagram for the front panel
header.
Table 14.
Front Panel Header
Pin
Signal Name
Description
Pin
Signal Name
Description
1
HDD_POWER_LED
Pull-up resistor
(750
Ω
) to +5V
2
POWER_LED_MAIN
[Out] Front panel LED
(main color)
3
HDD_LED#
[Out] Hard disk
activity LED
4
POWER_LED_ALT
[Out] Front panel LED
(alt color)
5
GROUND
Ground
6
POWER_SWITCH#
[In] Power switch
7
RESET_SWITCH#
[In] Reset switch
8
GROUND
Ground
9
+5V_DC
Power
10
Key
No pin