Rohde & Schwarz 1141.2005.02, Quick Start Manual

Page: 38 / 144

Preparing for Use
R&S
®
SMU200A
21 Quick Start Guide 1007.9822.62 ─ 13
AC SUPPLY AND POWER SWITCH
When the R&S SMU is connected to the AC supply, it automatically sets itself to the
correct range for the applied voltage (range: see type label). There is no need to set the
voltage manually or change fuses.
The instrument comes with or without a power switch, depending on the design of the
otherwise technically equivalent power supply unit.
The power switch can be set to two positions:
●
0
The instrument is disconnected from the mains.
●
I
The instrument is power-supplied. It is either ready for operation (STANDBY) or in
operating mode, depending on the position of the ON/STANDBY switch on the instru-
ment front.
See also data sheet and
​
chapter 2.3.3, "Connecting the Instrument to the AC Sup-
ply" , on page 27.
I OUT / Q OUT
(path A or path B)
Direct output or Differential (non-inverting) output for analog I/Q signal.
Option option R&S SMU-B16 is required.
I OUT BAR / Q OUT BAR
(path A or path B)
Differential (inverting) output for analog I/Q signal.
I/Q/DATA/CLOCK
Rear Panel Connectors for path A (option R&S SMU-B81) and path B (option R&S SMU-
B82).
This options are recommended for use of the instrument in a 19" rack. Installing the
instrument in a 19" rack requires a rack adapter or an adapter for telescopic sliders (refer
to data sheet for order number).
See also
​
chapter 2.3.2, "Placing or Mounting the Instrument" , on page 26.
Note: Option R&S SMU-B16 (Differential Outputs) and options R&S SMU-B81/B82 can-
not be fitted both, because they use the same connectors.
REF OUT
Output of internal reference signal.
REF IN
Input for external reference signal.
The external reference is used for both paths.
EXT MOD
Input for external analog modulation signals.
Rear Panel Tour