SATO CL4NX Operator's Manual page 340

[Time 1] (SOS users only)
Specifies the time to perform the first periodic notification.
Appears only if you have enabled the NTP function or installed the optional RTC kit, and if you have
selected [Daily] in the [Type] menu.
[Time 2] (SOS users only)
Specifies the time to perform the second periodic notification.
Appears only if you have enabled the NTP function or installed the optional RTC kit, and if you have
set [Daily] in the [Type] menu and have set twice or more in [Notifications].
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[Network]