Qualis Audio Sentine, User Manual, Page: 56 / 108

50 User Manual
Digital Errors
The Digital Errors section displays errors involving the digital input
channels and digital metadata.
Digital In Columns 1-4 show the receiver lock status for each of the four
2-channel PCM inputs. Column 5 shows the receiver lock status
for coded audio.
Interchannel Errors The sample rate and word width (number of active
bits) are measured for each channel of the surround program,
and the values are checked for differences between channels.
Channel metadata is extracted and checked for differences in
similar fashion. This metadata is also checked for differences
with measured values for each channel.
The differences are displayed in tabular format, with columns
for sample rate and word width. There are rows for differences
between measured values, and between measured and meta-
data values.
Auxiliary I/O
The Auxiliary I/O section displays the status of the signals on the rear
panel auxiliary signals connector.
Auxiliary Inputs These indicate errors on each of the six DC inputs and
the Sentinel internal temperature measurement. The upper and
lower comparison thresholds are set in the DC Inputs & Tem-
perature settings panel (p. 70). Unlike other errors there is
no duration setting associated with the DC inputs or tempera-
ture. If one of these exceeds threshold the error will be asserted
immediately. However, these inputs are tested approximately
3 times per second so a transient whose duration is less than
330 ms may be missed.
Alarm Outputs Any of the errors outlined above may be used to trig-
ger an Alarm condition as set in the Alarms settings panel
(p. 71). The state of the four Sentinel alarms is shown at the
bottom of the Errors panel. Unlike the error indicators, these