Studio Technologies 45DC - Manual (Page 10)

Issue 1, January 2015 Model 45DC User Guide
Page 10 Studio Technologies, Inc.
Rack Mounting the Model
45DC
For permanent or mobile applications it
might be desirable to mount one or two
Model 45DC 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 45DC 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 45DC’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 45DC’s chassis and front panel.
Tighten the four screws only after a careful
inspection ensures that the switch and all
28 of the LEDs protrude through the front
panel without interference. To allow vertical
clearance 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 coun-
ter-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 45DC to a dual-unit
rack-mount panel follows the same proce-
dure but will apply to two units. Store both
of the removed standard front panels and
the eight “bump on” protectors for pos-
sible 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 desig-
nated as B. This is provided so that each
can be easily identified during installation,
troubleshooting, and operation.
Once the desired one or two Model 45DC
units have been installed in a rack-mount
front panel, the assembly can be mount-
ed 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 45DC’s Dante Au-
dio-over-Ethernet connectivity. A 10BASE-T
connection is not sufficient for Model 45DC
operation. A 1000BASE-T (“GigE”) connec-
tion is not supported unless it can automat-
ically “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
45DC. To support PoE switch (PSE) power
management the Model 45DC will enumer-
ate itself as a PoE class 3 device. If PoE is
not available an external 12 volt DC power
source can be connected. This will be dis-
cussed in the next section of this guide.
The 100BASE-TX Ethernet connection is
made by way of a Neutrik etherCON pro-
tected RJ45 connector that is located on