Studio Technologies 214 - Manual (Page 12)

Issue 1, July 2014 Model 214 User Guide
Page 12 Studio Technologies, Inc.
Ethernet Connection
An Ethernet connection that supports
100BASE-TX is required for the Model
214’s Dante Audio-over-Ethernet con-
nectivity. A 10BASE-T connection is not
sufficient for Model 214 operation. A
1000BASE-T (“GigE”) connection is not
supported unless it can automatically
“fall back” to 100BASE-TX operation. An
Ethernet connection that supports Power-
over-Ethernet (PoE) is preferred as it will
provide operating power for the Model
214. For Ethernet with PoE switch (PSE)
power management the Model 214 will
enumerate itself as a PoE class 2 device.
If PoE is not available an external 12 volt
DC power source can also be connected.
This will be discussed in the next section
of this guide.
The 100 Mb/s twisted-pair Ethernet con-
nection is made by way of a Neutrik ether-
CON protected RJ45 connector that is
located on the back panel of the Model
214. This allows connection by way of a
cable-mounted etherCON plug or a stan-
dard RJ45 plug. The Model 214’s Ethernet
interface supports auto MDI/MDI-X so that
most cabling implementations will be cor-
rectly supported.
External 12 Volt DC Input
An external source of 12 volts DC can be
connected to the Model 214 by way of the
4-pin male XLR connector which is located
on the back panel. While the requirement
for the external source is nominally 12
volts, correct operation will take place over
a 10 to 18 volt range. The Model 214 re-
quires 270 milliamperes at 12 volts DC for
correct operation. The DC source should
be terminated to a 4-pin female XLR con-
nector with pin 1 negative (–) and pin 4
positive (+).
As previously discussed in this guide,
an Ethernet connection that provides
Power-over-Ethernet (PoE) can serve as
the Model 214’s power source. Alternately,
an external 12 volt DC source can be con-
nected. For redundancy, both PoE and the
external source can be connected at the
same time. If both PoE and an external
12 volt DC source are connected, power
will be drawn only from the PoE supply.
If the PoE source becomes inoperative
the 12 volt DC source will provide the
Model 214’s power with no interruption
in operation.
Pushbutton Labeling
The two pushbutton switches used in the
Model 214 were selected for several rea-
sons. Foremost was the fact that they are
highly reliable, using gold-plated contacts
for long life in less-than-ideal environ-
ments. A second reason was that applying
customized labels to the pushbutton caps
would be very simple. The labels, text
printed on clear material, are placed
under the clear caps on the top of the
pushbuttons.
From the factory the left pushbutton is
labeled COUGH and the right pushbut-
ton is labeled TALKBACK. These were
selected to be appropriate for many on-air
applications in English-speaking locations.
But it’s expected that these may need to
be changed to meet the needs of specific
applications.
As a “head start” for some applications,
a clear sheet with a number of commonly
used pushbutton designations printed on
it is included in the shipping carton. These
were created at the factory using a stan-
dard personal computer graphics program
and laser printed onto sheets of transpar-
ency film. The desired pushbutton labels