Chapter 1 Introduction
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| Hardware Features |
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4 | SYSTEM LED | The SYSTEM LED shows the status of the switch (system). | ||
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| Solid green | Switch is healthy. | |
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| Blinking green | Switch is running | |
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| of tests that runs automatically to ensure that the switch | |
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| functions properly. It might take several minutes for the | |
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| switch to complete POST. | |
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| Solid amber | Switch is faulty, is rebooting, or is in recovery. | |
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5 | ALERT LED | The ALERT LED shows the presence of a switch problem. | ||
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| When the switch detects a problem on one or more ports, the Alert LED turns | ||
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| amber. The Alert LED stays amber until the Alert Log is cleared. For more | ||
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| information about the Alert LED and Alert Log, see Table | ||
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| the Alert Log” section on page | ||
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| Off (dark) | No switch problem is detected. | |
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| Solid amber | A switch problem is detected. | |
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6 | PoE LED | The PoE LED shows the status of PoE being provided to the ports. | ||
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| This LED is available on switches that have PoE ports. | ||
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| Off (dark) | PoE to the ports is off. | |
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| Solid green | One or more ports is receiving PoE. | |
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| Blinking amber | One or more ports is not receiving PoE because of a fault. | |
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7 | RPS LED | The RPS LED shows the status of a connected redundant power system (RPS). | ||
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| This LED is available on switches that have an RPS connector. | ||
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| Off (dark) | RPS is off or is not properly connected. | |
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| Solid green | RPS is connected and is ready to provide | |
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| Blinking green | RPS is connected but is unavailable because it is providing | |
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| power to another device. | |
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| Solid amber | RPS is in standby mode or is in a fault condition. | |
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| Blinking amber | Switch internal power supply has failed, and the RPS is | |
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| providing power to the switch. | |
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| User Guide for the Catalyst Express 520 Switches |
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