Rohde & Schwarz CMU-K20, Operating Manual

Page: 261 / 646

CMU-K20/K21/K22/K23/K24
Signalling: Connection Control
1115.6088.12 4.183 E-12
Slope
Slope
qualifies whether the trigger event occurs on the
Rising Edge
or on the
Falling Edge
of the trigger signal. The setting has no influence on
Free Run
measurements.
Due to the polarity and the length of the uplink frame trigger signal (see
Source =
Signalling
above), changing the slope from
Rising Edge
to
Falling Edge
corresponds to the introduction of a 1-slot delay of the measurements.
Remote control
TRIGger[:SEQuence]:SLOPe POSitive | NEGative
Output Trigger Output Trigger
assigns the uplink frame trigger signal (or no signal) to the AUX 3
connector and defines a delay time. The settings are only valid for
Signalling
trigger
source; see above.
Pin 2/3/4/5
The frame trigger signal can be assigned to any of the pins no. 2
to 5 of the AUX3 connector. Multiple assignments are allowed.
The setting
None
means that no output signal is applied to a pin.
If the
Delay
box is checked, the trigger signal at one pin is
delayed by an integer number of slots.
Delay
Sets a delay time (integer number of 0 to 7 slots) for the trigger signal.
The undelayed frame trigger signal coincides with the beginning of
timeslot 0 of the MS signal, so
Delay
can be used to generate a trigger
signal with its rising edge at the beginning of any TDMA timeslot.
Remote control
TRIGger:OUTPut:PIN<nr>:SIGNal
TRIGger:OUTPut:PIN<nr>:DELay:ENABle
TRIGger:OUTPut:DELay:VALue
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. The functions of this menu are described in the section
GSM400/850/900/1800/1900-MS Non
Signalling
on page
4.87
ff.
深圳德标仪器
135-1095-0799