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Unit LEDs
The 
Table 
Hub LED Conditions and Descriptions
| LED | Status | Description | |
| Power | On | Power supply is operational | |
| 
 | Off | Power supply is off | |
| 
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| Utilization | 
 | 
 | Indicates percentage of network utilization | 
| 
 | 1 | Green lit | 1% to 5% | 
| 
 | 2 | Green lit | 5% to 15% | 
| 
 | 3 | Green lit | 15% to 30% | 
| 
 | 3 | Green, 1 Amber lit | 30% to 65% | 
| 
 | 3 | Green, 2 Amber lit | Above 65% | 
| 
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 | 
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| Collision | 
 | 
 | Indicates percentage of network collision count variation | 
| 
 | 1 | Green lit | 1% to 3% | 
| 
 | 2 | Green lit | 3% to 5% | 
| 
 | 3 | Green lit | 5% to 10% | 
| 
 | 3 | Green, 1 Amber lit | 10% to 15% | 
| 
 | 3 | Green, 2 Amber lit | Above 15% | 
| 
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