174Chapter 4 Troubleshooting
Figure 78 LED display panel
BayStack 420-24T Switch
1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | 10/100 Link Activity | |||||||||||||
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| HDX/FDX | ||
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| Base | ||
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| 12/100 Link Activity | ||
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| HDX/FDX |
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2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
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Unit Set | |||||||||||||||||||||||||
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| 9991EA | |
Table 42 BayStack 420 Switch LED descriptions | |||||
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Label | Type | Color | State | Meaning | |
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Power | Power status | Green | On | DC power is available to the switch’s internal circuitry. | |
On |
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| Off | No AC power to switch or power supply failed. | ||
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Cascade | Stack mode |
| Off | The switch is in standalone mode. | |
Up |
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| Green | On | The switch is connected to the upstream unit’. | |
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Cascade | Stack mode |
| Off | The switch is in standalone mode. | |
Down |
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| Green | On | The switch is connected to the downstream unit. | ||
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Base | Base mode | Green | On | The switch is configured as the stack base unit. | |
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| Off | The switch is not configured as the stack base unit (or is | |
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| in standalone mode). | |
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| Amber |
| Due to a stacking error the unit is unable to maintain the | |
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| stack connection. | |
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10/100 | 10/100 Mb/s | Green | On | The corresponding port is set to operate at 100 Mb/s, and | |
Link/ | port speed |
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| the link is good. | |
indicator |
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Activity | Amber | On | The corresponding port is set to operate at 10 Mb/s, and | ||
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| the link is good. | |
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| Off | The link connection is bad, or there is no connection to | |
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| this port. | |
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