User`s guide

AT-S45 User’s Guide
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I - Factory Defaults Except IP
Resets the switch and returns all parameter settings, except for
the IP address, subnet mask, and gateway address, to their factory
default values.
N - Normal Defaults
Resets the switch but retains all current parameter settings.
5. Type R to select Reboot.
The reboot process takes approximately 1 minute to complete.