Manual

Model 391 User Guide Issue 2, December 2018
Studio Technologies, Inc. Page 15
Initial Operation
The Model 391 will start to function as
soon as a Power-over-Ethernet (PoE)
power source is connected. However,
it may take 20 to 30 seconds for full opera-
tion to commence. Upon initial power up
the three status LEDs, located on the back
panel below the RJ45 jack, will begin to
light as network and Dante connections
are established. The visual indicator,
located on top of the Model 391’s en-
closure, will light, starting with red then
changing to green and then to blue,
“cycling” through the colors before going
dark. The three green LEDs on the front
panel will light in a sequence to display
that they are functioning correctly.
How to Identify a Specific
Model 391
Functions within the Dante Controller and
STcontroller software applications allow
a specific Model 391 unit to be identified.
Each application provides an “eyeball”
icon that when clicked will activate the
identify function. When identify is selected
it will send a command to a specific Model
391 unit. On that unit the visual indicator
will flash green in a pattern four times. In
addition, the SYS and SYNC status LEDs,
located directly below the etherCON RJ45
connector on the back panel, will slowly
flash green. After a few seconds the LED
identification pattern will cease and normal
Model 391 LED operation will resume.
Ethernet and Dante Status
LEDs
Three status LEDs are located below the
etherCON RJ45 connector on the Model
391’s back panel. The LINK/ACT LED will
light green whenever an active connection
to a 100 Mb/s Ethernet network has been
established. It will then flash in response to
all Ethernet data packet activity. The SYS
and SYNC LEDs display the operating sta-
tus of the Dante interface and its associat-
ed network activity. The SYS LED will light
red upon Model 391 power up to indicate
that the Dante interface is not ready. After
a short interval it will light green to indicate
that it is ready to pass data with another
Dante device. The SYNC LED will light red
when the Model 391 is not synchronized
with a Dante network. It will light solid
green when the Model 391 is synchronized
with a Dante network and an external clock
source (timing reference) is being received.
It will slowly flash green when this specific
Model 391 is part of a Dante network and
is serving as the clock master. It’s possible
that up to 30 seconds may be required for
the SYNC LED to reach its final state.
Operating Modes 1 and 2
The Model 391 can be configured to oper-
ate in two unique operating modes, named
Mode 1 and Mode 2. The configuration of
the operating modes should have previ-
ously been selected using the STcontroller
software application. The operating mode
that the Model 391 is actively following can
be selected either using the pushbutton
switch located on the front panel or a com-
mand made within STcontroller. Two green
LED indicators, located adjacent to the
pushbutton switch, are used to display
the active operating mode. To change the
operating mode simply requires the push-
button switch to be pressed and momen-
tarily held; a quick “tap” of the button will
not change the operating mode. This fea-
ture helps to ensure that a random press
of the push-button switch will not change
the operating mode.