Rohde & Schwarz SMU200A - Standby and Ready State

Preparing for Use
R&S
®
SMU200A
35Operating Manual 1007.9845.32 ─ 15
Starting up instruments with power switch
1. Connect the instrument to the AC supply.
2. To turn the power on, press the main power switch to position I (On).
After power-up, the instrument is in standby or ready state, depending on the state
of the ON/STANDBY key at the front panel of the instrument when the instrument
was switched off for the last time.
3. In case the instrument is in standby mode, i.e. the yellow LED is on, press the ON/
STANDBY key to switch the instrument to ready state.
Starting up instruments without power switch
1. Connect the instrument to the AC supply.
After connection to the AC supply, the instrument is in standby or ready state,
depending on the state of the ON/STANDBY key at the front panel of the instrument
when the instrument was switched off for the last time.
2. In case the instrument is in standby mode, i.e. the yellow LED is on, press the ON/
STANDBY key to switch the instrument to ready state.
2.3.4.1 Standby and Ready state
The ON/STANDBY key is located in the bottom left corner of the front panel.
Switching between standby and ready state
► Press the ON/STANDBY key briefly to switch the instrument from the standby to
ready state or vice versa.
In ready state, the left, green LED is on. The instrument is ready for operation. All
modules are power-supplied and the R&S SMU initiates its startup procedure.
In standby state, the right, yellow LED is on. The standby power only supplies the
power switch circuits and the oven-controlled crystal oscillator to keep it at its oper-
ating temperature. In this state it is safe to switch off the AC power and disconnect
the instrument from the power supply.
2.3.4.2 Start Display and Booting
After power-on, the start display indicates for a few seconds the installed BIOS version
and the processor characteristics.
In ready state, the instrument boots the operating system, starts the instrument firmware
and automatically performs a selftest. If the previous session was terminated regularly,
the instrument uses the last setup with the relevant instrument settings.
Once the startup procedure has been terminated, the block diagram opened in the pre-
vious session is displayed and the instrument is ready for operation.
Putting into Operation