Intel BLKD201GLYL Product Specification - Page 42

Table 17. States for a One-Color Power LED

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Intel Desktop Board D201GLY Technical Product Specification 2.2.2.3.1 Hard Drive Activity LED Header [Orange] Pins 1 and 3 [Orange] can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. Proper LED function requires an IDE hard drive connected to an onboard IDE connector. 2.2.2.3.2 Reset Switch Header [Blue] Pins 5 and 7 [Blue] can be connected to a momentary single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the board resets and runs the POST. 2.2.2.3.3 Power/Sleep LED Header [Green] Pins 2 and 4 [Green] can be connected to a one- or two-color LED. Table 17 shows the possible states for a one-color LED. Table 18 shows the possible states for a twocolor LED. Table 17. States for a One-Color Power LED LED State Description Off Steady Green Power off/sleeping Running Table 18. States for a Two-Color Power LED LED State Description Off Power off Steady Green Running Steady Yellow Sleeping NOTE The colors listed in Table 17 and Table 18 are suggested colors only. Actual LED colors are product- or customer-specific. 2.2.2.3.4 Power Switch Header [Red] Pins 6 and 8 [Red] can be connected to a front panel momentary-contact power switch. The switch must pull the SW_ON# pin to ground for at least 50 ms to signal the power supply to switch on or off. (The time requirement is due to internal debounce circuitry on the board.) At least two seconds must pass before the power supply will recognize another on/off signal. 42

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Intel Desktop Board D201GLY Technical Product Specification
42
2.2.2.3.1
Hard Drive Activity LED Header [Orange]
Pins 1 and 3 [Orange] can be connected to an LED to provide a visual indicator that
data is being read from or written to a hard drive.
Proper LED function requires an
IDE hard drive connected to an onboard IDE connector.
2.2.2.3.2
Reset Switch Header [Blue]
Pins 5 and 7 [Blue] can be connected to a momentary single pole, single throw (SPST)
type switch that is normally open.
When the switch is closed, the board resets and
runs the POST.
2.2.2.3.3
Power/Sleep LED Header [Green]
Pins 2 and 4 [Green] can be connected to a one- or two-color LED.
Table 17 shows
the possible states for a one-color LED.
Table 18 shows the possible states for a two-
color LED.
Table 17. States for a One-Color Power LED
LED State
Description
Off
Power off/sleeping
Steady Green
Running
Table 18. States for a Two-Color Power LED
LED State
Description
Off
Power off
Steady Green
Running
Steady Yellow
Sleeping
±
NOTE
The colors listed in Table 17 and Table 18 are suggested colors only.
Actual LED
colors are product- or customer-specific.
2.2.2.3.4
Power Switch Header [Red]
Pins 6 and 8 [Red] can be connected to a front panel momentary-contact power
switch.
The switch must pull the SW_ON# pin to ground for at least 50 ms to signal
the power supply to switch on or off.
(The time requirement is due to internal
debounce circuitry on the board.)
At least two seconds must pass before the power
supply will recognize another on/off signal.