Studio Technologies 216 - Manual (Page 12)

Issue 1, July 2014 Model 216 User Guide
Page 12 Studio Technologies, Inc.
cable-mounted etherCON plug or a stan-
dard RJ45 plug. The Model 216’s Ethernet
interface supports auto MDI/MDI-X so
that most cabling implementations will
be correctly supported.
External 12 Volt DC Input
An external source of 12 volts DC can
be connected to the Model 216 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 216 requires 270 milliamperes at
12 volts DC for correct operation. The DC
source should be terminated to a 4-pin
female XLR connector 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 216’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 216’s power with no interruption
in operation.
Pushbutton Labeling
The four pushbutton switches used in the
Model 216 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, the middle pushbutton is
labeled TALKBACK 1, and the right push-
button is labeled TALKBACK 2. 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
can be cut out with a pair of scissors or an
X-ACTO® knife following the printed guide
lines that indicate the required size.
The clear lens on top of each pushbutton
cap can be removed with a fingernail or
small screwdriver. Be certain not to scratch
the pushbutton if a screwdriver or other
small tool is used. The clear label can be
removed and replaced. The cap is then
snapped back into the top of the housing
using finger-pressure only. No tool is re-
quired to replace the cap.
If you need to make your own labels the
process is quite simple. Use a personal
computer to create the desired text. The
finished label size should be 0.625-inches
(15.8 mm) square. The completed artwork
can then be printed on transparency film
sheets using a laser or inkjet printer. These
sheets are readily available from most of-
fice supply stores. A pair of scissors or an
X-ACTO (razor) knife will complete the task.