Studio Technologies 45DR, User Manual

Page: 10 / 23

Issue 2, January 2015 Model 45DR User Guide
Page 10 Studio Technologies, Inc.
Protecting the Enclosure
The Model 45DR is shipped as a self-
contained unit suitable for portable use
or placement in a semi-permanent loca-
tion. Installed on the bottom of the chassis
are screw-on “bump on” protectors (also
known as “rubber feet”). These are useful
if the unit is going to be placed on surfaces
where scratching of either the Model 45DR
or the surface material could take place.
The “feet” can be removed, without the use
of a tool, when rack- or custom-mounting
the unit.
Rack Mounting the
Model 45DR
For permanent or mobile applications it
might be desirable to mount one or two
Model 45DR units into one space (1U) of
a 19-inch rack enclosure. Two rack-mount
front panels, purchased separately, are
available from Studio Technologies. The
following provides details on how to install
and use the panels.
To attach a Model 45DR unit to the single-
unit rack-mount panel, begin the process
by using a 5/64-inch hex wrench to remove
the four 4-40 thread hex-head machine
screws that hold the standard front panel
to the chassis. Note that the screws might
be quite tightly affixed. Ensure that a good-
quality hex wrench is used and press and
hold it firmly while turning counterclock-
wise. Unless this recommendation is fol-
lowed the wrench can “cam out” and the
head could be “stripped.”
Using the screws that were just removed,
attach the rack-adapter front panel to the
Model 45DR’s chassis. To prevent damage
care is required when aligning the front
panel with the LEDs and auto null push-
button switch that protrude through both
the Model 45DR’s chassis and front panel.
Tighten the four screws only after a careful
inspection ensures that the switch and all 26
of the LEDs protrude through the front panel
without interference. To allow vertical clear-
ance in the associated rack, remove the four
“bump on” protectors from the bottom of
the chassis. They are removed by using the
fingers to rotate them counter-clockwise; no
tool is required. Carefully protect and store
the standard front panel, along with the
“bump on” protectors, for possible later use.
Mounting a Model 45DR to a dual-unit rack-
mount panel follows the same procedure
but will apply to two units. Store both of the
removed standard front panels and the eight
“bump on” protectors for possible later use.
Note that on the rack-panels graphics the
unit on the left is designated as A while the
unit on the right is designated as B. This is
provided so that each can be easily identi-
fied during installation, troubleshooting, and
operation.
Once the desired one or two Model 45DR
units have been installed in a rack-mount
front panel, the assembly can be mounted
into the designated equipment rack. One
space (“1U” or 1.75 vertical inches) in
a standard 19-inch equipment rack is
required. Secure the front panel into the
equipment rack using two mounting screws
per side.
Ethernet Connection
An Ethernet connection that supports
100BASE-TX (100 Mb/s over twisted-pair)
is required for the Model 45DR’s Dante
Audio-over-Ethernet connectivity. A
10BASE-T connection is not sufficient for
Model 45DR operation. A 1000BASE-T
(“GigE”) connection is not supported