3-3 Spectrum Analyzer Quick Start Guide
3-8 PN: 10580-00251 Rev. T MS2712E/13E User Guide
External Power On
The When DC Applied setting in the Power-On menu allows the instrument to restart
automatically when external DC power is applied to the connector shown in Figure 2-14
on page 2-15. Refer to “External Power” on page 2-17 and the “Power-On Menu” on page 5-6.
When this feature is enabled, the instrument in the off state will turn on when external DC
power is applied. The instrument turns off when external power is removed, even if a battery
is installed. This is useful for high-reliability remote operation, where the instrument may
need to be rebooted using a remotely-controlled power switch.
If the instrument is turned on with the power switch, then external power is removed, the
instrument will continue to run until the battery is depleted. It will come on and the battery
will begin recharging when external power is applied. This state is useful when the
instrument is in a location where the power source may be interrupted.
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