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2.8.2.5.2
Reset Switch Connector [Purple]
Pins 5 and 7 [Purple] 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.
2.8.2.5.3
Power/Sleep LED Connector [Green]
Pins 2 and 4 [Green] can be connected to a one- or two-color LED. Table 35 shows the possible
states for a one-color LED. Table 36 shows the possible states for a two-color LED.
Table 35.
States for a One-Color Power LED
LED State
Off
Steady Green
Table 36.
States for a Two-Color Power LED
LED State
Off
Steady Green
Steady Yellow
✏
NOTE
The colors listed in Table 35 and Table 36 are suggested colors only. Actual LED colors are
product- or customer-specific.
2.8.2.5.4
Power Switch Connector [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.
2.8.2.6
Front Panel USB Connectors
Figure 21 is a connection diagram for the front panel USB connectors.
INTEGRATOR'S NOTES
•
The +5 V DC power on the USB connector is fused.
•
Pins 1, 3, 5, and 7 comprise one USB port.
•
Pins 2, 4, 6, and 8 comprise one USB port.
•
Use only a front panel USB connector that conforms to the USB 2.0 specification for high-
speed USB devices.
Description
Power off/sleeping
Running
Description
Power off
Running
Sleeping
Technical Reference
75
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