Fig. 4-40 Connection Control - I/Q-If; I/Q-If Interface (Connection Control - I/Q-If) - Rohde & Schwarz GSM400-MS Operating Manual

CMU-K20/K21/K22/K23/K24
I/Q-IF Interface (Connection Control – I/Q-IF)
The I/Q-IF tab is part of the second group of tabs in the Connection Control menu. It is accessible after
pressing the 1 / 2 toggle hotkey once. Pressing 1 / 2 again switches back to the first group of tabs
described above.
The I/Q-IF tab configures the signal paths for I/Q and IF signals. With option CMU-B17, I/Q and IF
Interfaces, I/Q and IF signals can be used in the framework of RF measurements and in many network
tests. For a detailed description of rear panel connectors for I/Q and IF input/output signals, test
scenarios and application examples refer to the CMU200/300 operating manual.
Fig. 4-40 Connection Control – I/Q-IF
Default Settings The Default Settings checkbox assigns the default setting to all functions in the I/Q-
IF tab.
IQIF:DEFault ON | OFF
Remote control
Selects the I/Q-IF test scenario, overwriting the current RX Path and TX Path
I/Q-IF
settings. Six different predefined test scenarios with fixed RX and TX path are
provided; see
Additional scenarios may be defined by selecting any other combination of RX and
TX paths. When this is done I/Q-IF is set to User-defined. The circuit diagram to the
left of the Setup table shows the current RX and TX signal paths.
CONFigure:IQIF:RXTXcombined
Remote control
Selects the RX signal path, leaving the TX Path unchanged but adapting the I/Q-IF
RX Path
test scenario to the new RX/TX path combination: If the combination corresponds
to a predefined scenario, then I/Q-IF is set to the predefined scenario; otherwise it
is set to User-defined .
The circuit diagram to the left of the Setup table shows the current RX and TX
signal paths.
CONFigure:IQIF:RXPath
Remote control
1115.6088.12
Table 4-6 below .
BYP | BYIQ | XOIO | IOIO | IOXO | FPAT | UDEF
BYP | BYIQ | XOIO | IOIO | IOXO | FPAT | UDEF
4.87
Non Signalling: Connection Control
E-11