Installing the Hub
Installing the Hub
Interpreting LED Status
Interpreting Hub Status LEDs
The hub status LEDs indicate whether the hub is functioning properly. For further details on error conditions indicated by the Status LEDs, see chapter 2, “Troubleshooting”.
LED | State | Meaning of LED | |
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SYSTEM | On | The hub is receiving power. | |
(Power) | Off | The hub is not receiving power. | |
(green) | |||
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ACT | Flickering | ON while a packet is being transmitted. Normally, the LED appears | |
(Activity) |
| to flicker. In heavy traffic, it may appear on all the time. | |
(green) |
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FLT | On | An error has been detected on the hub. | |
(Fault) | Off | No error has been detected on the hub. | |
(Orange) | Flash | Flashes simultaneously with port LEDs, indicating the port is | |
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| partitioned. | |
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SEC | On | A security violation has occurred. | |
(Security) | Off | Hub security has not been violated. | |
(Orange) | Flash | Flashes simultaneously with port LEDs, indicating the port had a | |
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| security violation. | |
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RPS | On | The RPS is providing power. | |
(RPS) | Off | The RPS is not providing power. | |
(green) |
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COL | Flickering | This LED is on while a collision is detected. If it appears on | |
(Collision) |
| continuously (with no flicker), it is a possible indicator of a network | |
(orange) |
| fault or an improperly terminated cable. | |
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