Orban OPTIMOD-FM 8500S, Operating Manual

Page: 80 / 335

2-24
INSTALLATION ORBAN MODEL
The Modulation Reduction function is active as long as signal is applied
to its associated GPI input.
C) Program the GPI input(s).
a) Navigate to
Setup > Next > N
ETWORK
&R
EMOTE
> R
EMOTE
I
NTERFACE
.
b) Using the Next button, scroll the screen until you see the button
corresponding to the GPI terminal you wish to program.
c) Hold down this button and turn the knob until you see M
OD
. R
EDUCTION
1
or
M
OD
. R
EDUCTION
2
as desired.
To program clock-based automation to activate modulation reduction, follow
the instructions found in “Using Clock-Based Automation” on page 2-36.
3. Program Silence Sense (optional)
You can program the 8500S to switch automatically from its digital input to its
analog inputs if the
I
NPUT
S
OURCE
is set to
D
IGITAL
and the signal at the digital in-
put falls silent. Conversely, you can also program the 8500S to switch automati-
cally from its analog inputs to its digital input if the
I
NPUT
S
OURCE
is set to A
NALOG
and the signal at the analog input falls silent
There are two silence detectors, one for the analog input and one for the
digital input. The silence sense parameters apply to both simultaneously.
Both detectors are available to drive the 8500S’s tally outputs but only
the “digital input” silence detector is used for automatic input switching.
(See step D) below.)
Silence sense will be activated if either channel falls silent, thus also pro-
tecting against “loss-of-one-stereo-channel” faults.
If silence is detected at the analog input as well as the digital input (as in
the case of a studio operational fault), automatic switching will not oc-
cur.
When an active signal is restored to the digital input, the 8500S will
automatically switch back to that input.
A) Navigate to
Setup > S
ILENCE
T
HR
and set the Silence Threshold to the level be-
low which the 8500S will interpret the input as being silent.
This setting is with respect to the current analog reference level and digi-
tal reference level.
B) Press
Next
as necessary to see the
S
ILENCE
D
LY
control. Set it to the amount of
time that the input must be below the Silence Threshold before the 8500S
automatically switches to the analog input.
C) Press Next as necessary to see the A
NLG
F
ALL
-B
ACK
control. Set it to Y
ES
if you
wish the 8500S to switch automatically from the digital to analog input when
silence is detected. Set the control to
N
O
to defeat automatic switching.
D) Press
Next
as necessary to see the
DI A
NLG
F-B
control. Set it to
Y
ES
if you wish
the 8500S to switch automatically from the analog to digital input when si-
lence is detected. Set the control to
N
O
to defeat automatic switching.