Orban OPTIMOD-FM 8600Si, Operating Manual

Page: 81 / 356

OPTIMOD-FM DIGITAL INSTALLATION
2-25
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 8600Si’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 8600Si will au-
tomatically 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 8600Si 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 8600Si
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 8600Si 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 8600Si to switch automatically from the analog to digital input when si-
lence is detected. Set the control to
N
O to defeat automatic switching.
4. Program Tally Outputs.
[Skip this step if you do not wish to use the tally outputs.]
See step 6 on page 2-4 for wiring instructions.
You can program the two tally outputs to indicate a number of different opera-
tional and fault conditions.
A) Navigate to Setup
> N
ETWORK
R
EMOTE
> R
EMOTE
I
NTERFACE
> T
ALLY
1
.
B) Program tally output #1.
To program a given tally output, press and hold the soft button associ-
ated with the output you are programming. As you turn the control
knob, the functions listed below will appear in the highlighted field.
•
Input: Analog : Indicates that the 8600Si is processing audio from its ana-
log input.
•
Input: Digital : Indicates that the 8600Si is processing audio from its AES3
digital input.