AT-9400 Series Gigabit Ethernet Switches Installation Guide
System LEDs
The system LEDs on the front panel display general status information, as described in Table 6.
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| Table 6 System LEDs | |
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LED | State | Description | |
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FAULT or | Off | Normal operation. | |
FLT |
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Solid | The switch or management software has | ||
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| Red | malfunctioned. (Refer to Chapter 3, | |
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| “Troubleshooting” on page 67 for instructions | |
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| on how to troubleshoot a problem.) | |
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| Flashing | The switch is saving its configuration or is | |
| Red | downloading a new version of the | |
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| Management Software. | |
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| |
MASTER | Off | The switch has an enhanced stacking status of | |
or MSTR |
| slave or unavailable. | |
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| Green | The switch has an enhanced stacking status of | |
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| master. | |
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RPS | Off | No optional redundant power supply is | |
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| connected to the switch. | |
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| Green | An optional redundant power supply is | |
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| physically connected to the switch and may be | |
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| powered on or off. | |
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| |
POWER | Off | The switch is not receiving power. | |
or PWR |
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Green | The switch is receiving power. | ||
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