Inovonics AARON 650, Инструкция по установке и эксплуатации

Страница: 36 / 53

— 34 —
from an SD memory card inserted into the front-panel slot, or
from a LAN/Internet source of the main program or backup
programming. This ‘failover’ feature is detailed on Page 36.
From the Main Menu, navi-
gate to
Alarms & Notifications
.
This menu screen gives ac-
cess to individual alarm set-
ups, and to the
Audio Failover
,
Email Notifications and Alarm Log settings. These will be described
in menu order, but as there are setup redundancies among the
alarms, do please read them all.
Audio Loss
Push the knob to enter the
Audio Loss
setup menu and
turn it to bracket the five
setup options. Individual
options are accessed by
pushing the knob, then turning it to change parameters.
When Alarm shows a checkmark in the box, the alarm is acti-
vated. An empty
Alarm
box means that the alarm is turned
off.
The
Threshold On slider sets the threshold that will trigger an
alarm when program audio falls below the user-programmed
point. The slider actually gives a display of program audio in
real time, and also has a flag that shows the set point in dB
with reference to full modulation.
When the program level falls below the
Threshold On
value, the
alarm does not pop on immediately. Instead, the program must
remain below the threshold for the time period programmed
into the
Time On
box. Bracket this box and push the knob, then
turn the knob to adjust the time. The figure you select will be
dictated to some degree on the station’s format, and on your
intended use for this particular alarm.
Once the program returns, the alarm does not immediately re-
set either. First of all, the program must reach the Threshold Off
level. This may be set to the same level as
Threshold On
, or to a
higher level to afford some hysteresis for this alarm function.
Moreover, the program must remain above the
Threshold Off
fig-
ure for the time period programmed into the
Time Off
box. Only
then will the alarm be reset.
You will find that the
Threshold On and Threshold Off sliders are
interactive; you cannot set the ‘off’ level lower than the ‘on’ lev-
el.
Low Signal
The
Low Signal
alarm is so very similar to the
Audio Loss
alarm
discussed above that its explanation will be abbreviated here.
Refer back up for clarification.
On the Low Signal setup menu, Threshold On , Time On , Threshold
Off
and
Time Off
are adjusted to give an alarm when the incom-