Chapter 3 Hardware Overview
To connect the power to the
The
3.2.2 External Backup Power Supply Connector
The Switch supports external backup power supply (BPS).
The backup power supply constantly monitors the status of the internal power supply. The backup power supply automatically provides power to the Switch in the event of a power failure. Once the Switch receives power from the backup power supply, it will not automatically switch back to using the internal power supply even when the power is resumed.
3.3 LEDs
The following table describes the LEDs.
Table 2 | LEDs |
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LED |
| COLOR | STATUS | DESCRIPTION |
BPS |
| Green | Blinking | The system is receiving power from the backup power supply. |
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| On | The backup power supply is connected and active. |
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| Off | The backup power supply is not ready or not active. |
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PWR |
| Green | On | The system is turned on. |
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| Off | The system is off. |
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SYS |
| Green | Blinking | The system is rebooting and performing |
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| On | The system is on and functioning properly. |
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| Off | The power is off or the system is not ready/malfunctioning. |
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ALM |
| Red | On | There is a hardware failure. |
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| Off | The system is functioning normally. |
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Ethernet Ports |
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LNK/ACT |
| Green | Blinking | The system is transmitting/receiving to/from a 10 Mbps Ethernet |
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| network. |
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| On | The link to a 10 Mbps Ethernet network is up. |
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| Amber | Blinking | The system is transmitting/receiving to/from a 100 Mbps Ethernet |
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| network. |
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| On | The link to a 100 Mbps Ethernet network is up. |
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| Off | The link to an Ethernet network is down. |
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FDX |
| Amber | On | The Ethernet port is negotiating in |
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| Off | The Ethernet port is negotiating in |
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| 49 |
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