Rohde & Schwarz SR8050 - Exciter > Input > Data Input Menu Window

Chapter 5 Operation
5300.9677.71 - 5.50 - EN-4
Signal monitoring at digital input
Note The levels specified here refer to the digital level, i.e. the level of the audio samples in the
AES/EBU signal. For AES/EBU, monitoring also takes place at this level, in addition to other
status monitoring. This makes it possible to detect errors in the feed even if an upstream
device only generates an empty (but still valid) AES/EBU signal.
Nominal digital input amplitude
The nominal digital input amplitude is the signal amplitude (500 Hz sinewave signal) that
produces 100 % of the set nominal deviation at the output of the FM modulator.
Permissible digital input amplitude
Since the AES/EBU signal is already in digital format, any headroom must be taken into ac-
count accordingly. A headroom of 9 dB is typical; -9 dBFS must be set in this case.
Note If 0 dBFS is selected, no headroom will be available. Due to this selection, no Clipped warn-
ing will be generated. We therefore do not recommend this setting.
Current digital input amplitude
The digital signal amplitude is monitored in the same manner as the analog inputs (see the
section "Signal Monitoring at Analog Inputs").
2.7.2.3 Exciter > Input > Data Input Menu Window
In the Data Input menu window you can set parameters for the AUX inputs.
Threshold For setting the threshold of the digital input amplitude for monitoring
The setting can be made in two ways:
– as a percentage of the nominal input amplitude
with the value range: 2% to 80% (default setting 5%)
– as an absolute value in dBFS
with a value range which depends on the absolute level (correspond-
ing to the entry in percent)
On-Time If the input amplitude is continuously above the threshold during the set
On-Time, the input is considered to be OK.
Value range: 1 s to 6000 s (default setting 5 s)
Off-Time If the input amplitude is continuously below the threshold during the set
Off-Time, the input is considered not to be OK.
Value range: 1 s to 6000 s (default setting 5 s)
Setting item Explanation