Chapter 1: Overview
Fiber Optic Port LEDs
Table 6. LEDs for the
LED | State | Description |
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Mode - DC | OFF | Indicates that the port has not established a |
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| valid link with its end node. |
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| Steady | Indicates that the port is operating in full |
| Green | duplex mode. |
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| Steady | Indicates that the port is operating in half |
| Amber | duplex mode. |
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| Flashing | Indicates that the port is operating in half |
| Amber | duplex mode and that data collisions are |
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| occurring on the port. |
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Mode - POE | OFF | Indicates that the device connected to the |
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| port is not a powered device and does not |
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| require PoE. |
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| Green | Indicates that the end node is a powered |
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| device and that the port is providing power |
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| to it. |
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| Steady | Indicates that the port experienced a |
| Amber | problem providing PoE to the end node. For |
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| further information, refer to Chapter 3, |
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| “Troubleshooting” on page 77. |
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| Flashing | Indicates that the port is connected to a |
| Amber | powered device but that providing power to |
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| it would exceed the maximum PoE power |
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| budget of the switch. For further |
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| information, refer to Chapter 3, |
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| “Troubleshooting” on page 77. |
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|
|
This section applies to the
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