Studio Technologies 45DC - Manual (Page 14)

Issue 1, January 2015 Model 45DC User Guide
Page 14 Studio Technologies, Inc.
Operation
At this point the Model 45DC should have
its party-line and Ethernet connections
made. Depending on the application an
external 12 volt DC power connection may
have also been made. The Dante input
(receiver) and output (transmitter) channels
should have been routed using the Dante
Controller software application. Normal op-
eration of the Model 45DC can now begin.
Initial Operation
The Model 45DC will begin functioning a
few seconds after its power source is con-
nected. As previously discussed, the power
source can be provided by Power-over-
Ethernet (PoE) or an external source of
12 volts DC. If both are connected the PoE
source will power the unit. Should PoE sub-
sequently no longer be available, operation
will continue using the external source.
Upon Model 45DC power up many of
the status and meter LEDs will activate in
test sequences. The PoE and USB LEDs,
located on the back panel, will light one
after another. On the front panel the input
power, channel status and level meters
LEDs will light in a sequence. Once the test
sequences have completed two columns
of front-panel level meter LEDs will mo-
mentarily display the version number of the
unit’s application firmware. Details on how
to “read” the version number is provided in
the Technical Notes section of this guide.
The Model 45DC will now begin normal
operation. The way in which the LINK/ACT,
SYS, SYNC, and PoE LEDs (all located on
the back panel below the Ethernet con-
nector) light will depend on characteristics
related to the connected Ethernet signal
and the configuration of the unit’s Dante
interface. Details will be covered in the next
paragraph. The user is presented on the
front panel with two pushbutton switch, two
input power status LEDs, six channel status
LEDs, and four 5-segment LED level me-
ters. These resources are simple to operate
and understand, as will be described in
later paragraphs.
Ethernet, PoE, and Dante
Status LEDs
Four status LEDs are located below the
Ethernet connector on the Model 45DC’s
back panel. The LINK/ACT LED will light
green whenever an active connection to a
100 Mb/s Ethernet network has been estab-
lished. It will flash on and off in response to
data packet activity. The PoE LED will light
green whenever Power-over-Ethernet (PoE)
associated with the connected Ethernet
signal is providing operating power for the
Model 45DC. The SYS and SYNC LEDs
display the operating status of the Dante
interface and associated network. The SYS
LED will light red upon Model 45DC 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 45DC is
not synchronized with a Dante network. It
will light solid green when the Model 45DC
is synchronized with a Dante network and
an external clock source (timing reference)
is being received. It will slowly light on and
off green when the Model 45DC is part of
a Dante network and is serving as a clock
master.