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DC Power Supply LEDs in an EX8200 Switch
A DC power supply has four LEDs on its faceplate: FAIL, OUT OK, A IN OK, and B IN OK LEDs. The text A or B next to the OK IN LEDs indicates which input lug the LED corresponds to. All four LEDs display information about the status of the power supply. See Figure 1.
 | Note: EX8208 switches support 2000 W DC power supplies. EX8216 switches support 3000 W DC power supplies. |
Figure 1: DC Power Supply LEDs in an EX8200 Switch
Table 1 describes the LEDs on a DC power supply in EX8200 switches.
Table 1: DC Power Supply LEDs in EX8200 Switches
LED | State | Description |
|---|---|---|
A IN OK | Unlit | Indicates one of the following:
|
Green |
| |
Yellow |
| |
Red |
Note: The DC power supply is protected against reverse polarity input for both DC input feeds. | |
B IN OK | Unlit | Indicates one of the following:
|
Green |
| |
Yellow |
| |
Red |
Note: The DC power supply is protected against reverse polarity input for both DC input feeds. | |
OUT OK | Unlit | Indicates one of the following:
|
Green |
| |
Yellow |
| |
FAIL | Unlit |
|
Yellow |
|
| Note: If the IN OK LED and the OUT OK LED are unlit, the power cords are not installed properly or the power supply has failed. If the IN OK LED is lit green and the OUT OK LED is unlit, the power supply is not installed properly or the power supply has an internal failure. If the FAIL LED is lit, the power supply has failed and must be replaced. If the FAIL LED is blinking, add a power supply to balance the power demand and supply. |
