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| FAN module 21 |
| Table 6 LED description | |
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| LED | Description |
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| ALM (red) | ON means the PSU is not present or has failed. |
| RUN (green) | Steady ON means the PSU is operating normally, and OFF |
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| means the PSU has failed. |
| OK (red) | PSU input LED. Steady ON means the normal voltage (85 to |
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| 264 V) is inputting, and OFF means the opposite. |
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FAN module | The Router 6040 and Router 6080 are equipped with pairs of FAN | |
| cooling modules. The two fans in each pair work together to provide | |
redundancy. The failure of one fan does not affect the operation of the other fans, and normal system operating temperature can be maintained.
The speed of the fans is controlled by the RPU or RPU2 to maintain optimum system temperature. If a fan stops working, the RPU or RPU2 will display an alarm.
The following figure shows a FAN module, using the 3Com Router 6080 as an example.
Figure 10 FAN module (Router 6080 shown)
| With the automatic configuration |
| Router 6000 can automatically detect and configure all its interfaces |
| upon its first use and start Telnet, FTP, or Web service. Then the connected |
| router or console terminal that has been |
| center automatically connects to the router to configure it or to transfer |
| the configuration file. Alternatively, this connection can be initiated |
| administratively. |
