Switching On or Off the Instrument
R&S
®
ETL
42Getting Started 2118.4130.02 ─ 04
7.2 Switching On the Instrument
Risk of instrument damage
Before switching on the R&S ETL, make sure that the following conditions are met:
●
The R&S ETL is set up as described in Chapter 4, "Setting Up the Instrument",
on page 13.
●
Signal levels at the input connectors are all within the specified ranges.
●
Signal outputs are correctly connected and are not overloaded.
The values are specified in the data sheet. Failure to meet these conditions may cause
damage to the R&S ETL or other devices in the test setup.
► AC power supply: Press the AC power switch on the rear panel into position I.
► DC power supply/battery pack or standby state: Press the [ON/STANDBY] key on
the front panel.
7.3 Switching Off the Instrument
Depending on the used power supply, the R&S ETL changes to different states when
pressing the [ON/STANDBY] key on the front panel or switching off the AC power at
the rear panel. An overview is given in Chapter 7.4, "Behavior of the ON/STANDBY
Key", on page 43.
Risk of losing data
If switched off using the [ON/STANDBY] key, the R&S ETL preserves its current set-
tings.
If switched off at the rear panel or if the power cord is disconnected without pressing
the [ON/STANDBY] key first, the R&S ETL loses its settings. In this case, the last set-
tings that were stored on the SSD are loaded when you switch the R&S ETL back on.
7.3.1 Switching to Standby
Do not press the [ON/STANDBY] key longer than 3 seconds.
Switching Off the Instrument
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