Connecting the Instrument
R&S
®
ETL
38
Getting Started 2118.4130.02 ─ 04
6.2
Connecting to the Power Supply
By standard, the R&S
ETL uses an AC power supply. In order to use the R&S
ETL
independently from an AC power supply, the R&S
ETL can be additionally fitted with a
DC power supply (DC Power Supply option, R&S
ETL-B230) and/or a battery pack
(Battery Pack option, R&S
ETL-B235). For details on the different power supplies, refer
to
From the available power supplies, the R&S
ETL selects the one to use according to
the following priority scheme:
Priority
Power supply
1
AC power supply
2
DC power supply
3
battery pack
For example, if the R&S
ETL is connected to both an AC and a DC power supply, it
uses the AC power supply. If it is suddenly disconnected from the AC power supply, it
switches to the DC power supply.
6.2.1
Connecting to the AC Power Supply
The R&S
ETL can be used with different AC power voltages and adapts itself automati-
cally to it. Refer to the datasheet for the requirements of voltage and frequency. The
AC power connector is located on the rear panel of the R&S
ETL.
Figure 6-1: AC power connector
Shock hazard
Observe the basic safety instructions delivered with the R&S
ETL, especially the
instructions on electrical safety.
Take care that the AC voltage lies within the limits printed on the AC power connector
of the R&S
ETL and listed in the data sheet.
► Connect the R&S
ETL to the AC power supply, using the power cable that is sup-
plied. The AC power connector is located on the rear panel of the R&S
ETL. The
R&S
ETL complies with safety class EN61010. The power supply must be connec-
ted to a socket with protective conductor.
Connecting to the Power Supply
