Preparing for Use
R&S
®
SMU200A
38Operating Manual 1007.9845.32 ─ 15
2.3.5 Shutting Down the Instrument
To shut down the R&S SMU, proceed as described bellow.
Risk of losing data
If you switch off the running instrument using the rear panel switch or by disconnecting
the power cord, the instrument loses its current settings. Furthermore, program data may
be lost.
Always first press the ON/STANDBY key to shut down the application properly.
1. Press the ON/STANDBY key to save the current setup, shut down the operating
system and set the instrument to standby state.
The yellow LED must be on.
2. To turn the power off:
a) For instruments with power switch, press the main power switch to position 0
(Off).
b) For instruments without power switch, pull the power cable at the rear of the
instrument.
Tip:
Switching off the AC power
You can leave the AC power on permanently to preserve your last instrument settings.
Switching off is required only if the instrument must be completely disconnected from
all power supplies.
None of the front-panel LEDs should be on.
2.4 Connecting External Accessories
The equivalent USB ports on the front and rear panel of the R&S SMU can be used to
connect a variety of accessories.
In addition the instrument provides interfaces for monitor connection and network inte-
gration (see chapter 2.4.2, "Connecting a Monitor", on page 40 and chapter 2.6.1,
"Connecting the Instrument to the Network", on page 43).
2.4.1 Connecting USB Devices
The USB interfaces on the front and (optionally) rear panels of the R&S SMU allow you
to connect USB devices directly to the instrument. This number can be increased as
necessary by using USB hubs. Due to the large number of available USB devices, there
is almost no limit to the expansions that are possible with the R&S SMU.
Connecting External Accessories
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