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Manual Operation
R&S
®
UPV
198
Getting Started 1146.2078.62 ─ 09
4.12.2 Auxiliary analog output
An auxiliary analog output, ANLG AUX OUT, for the following special applications is
provided at the rear:
●
Output of a DC signal, e.g. for supplying power to hearing aids
●
Auxiliary output for the analog generator signal via an integrated amplifier for the
direct activation of small loudspeakers
●
Output for single-channel audio monitoring
For details, see the operating manual on the documentation CD.
4.12.3 Trigger Input, Trigger Output
A trigger input and trigger output for the following applications are provided at the rear:
●
Input for triggering measurements
●
Output for a measurement-event-dependent signal that can be used to trigger
external instruments / circuits
●
Alternatively, clock signals can also be output at the TRIG
OUT socket
4.13 Rapid Deactivation of Outputs
The OUTPUT OFF key can be used in the event of faults to deactivate the outputs of
the generator. This means:
●
The levels of all digital outputs are set to 0
V.
●
The levels of all analog outputs are set to 0
V, whereby the outputs remain termi-
nated (i.e. the impedance is retained).
The deactivated lines can only be reactivated by pressing the OUTPUT OFF key
again.
Special feature for
Anlg Aux Output
:
If DC is selected as signal source in the "Anlg Aux Out" line in the Auxiliaries panel, the
DC voltage indicated in the line below will be retained even if you press the OUTPUT
OFF key.
This ensures the supply voltage or the operation point is retained when a device under
test (DUT) is connected.
The status of the key is indicated by an LED. Illumination of the LED means OUTPUT
OFF.
In case of an overload of the analyzer inputs (input voltage at 300
Ω
or 600
Ω
greater
than 25
V), the generator output is automatically switched off and the OUTPUT-OFF
LED lights up as if the OUTPUT-OFF key has been pressed to protect the analyzer
input. After the analyzer inputs have been overloaded in this way, measurements can
be resumed provided that the overvoltage has been rectified or the input impedance
has been switched to 200
k
Ω
.
Rapid Deactivation of Outputs