This section describes how to power on or off the USG6515E, USG6525E, USG6550E, USG6555E, USG6560E, USG6565E, USG6575E-B, USG6580E, USG6585E, USG6605E-B, USG6610E, USG6615E, USG6620E, USG6625E, USG6630E, USG6635E, USG6650E, USG6655E. To ensure the normal start and security of the USG6515E, USG6525E, USG6550E, USG6555E, USG6560E, USG6565E, USG6575E-B, USG6580E, USG6585E, USG6605E-B, USG6610E, USG6615E, USG6620E, USG6625E, USG6630E, USG6635E, USG6650E, USG6655E, strictly follow the operation guide to power on or off the USG6515E, USG6525E, USG6550E, USG6555E, USG6560E, USG6565E, USG6575E-B, USG6580E, USG6585E, USG6605E-B, USG6610E, USG6615E, USG6620E, USG6625E, USG6630E, USG6635E, USG6650E, USG6655E.
Turn on the switch of the power supply device. The USG starts.
You can identify the USG status based on indicators on the front and rear panels. Indicators shown in Figure 1 indicate that the USG runs normally.


Before powering off the USG, ensure that configuration data is saved. Otherwise, the configuration data may be lost.
If the USG has hard disks, do not power off the USG by removing the power cable or switching off the power supply to prevent data loss and hard disk damage. You must run the disk offline command in the system view first and wait for about 30 seconds. After the system prompts you with a message indicating that hard disks have stopped, turn off the power switch of the USG.