Studio Technologies 45DR - Manual (Page 19)

Model 45DR User Guide Issue 2, January 2015
Studio Technologies, Inc. Page 19
The Model 45DR provides a call light sup-
port function, allowing call light signals
associated with user devices on two Model
45DR interfaces to work together. The func-
tion also allows a Model 45DR intercon-
nected with a Model 45DC Dante to Dual
Party-Line Intercom Interface to have com-
mon call light activity. No operator action is
required for the call light support function
to perform its task. However, placing DIP
switch 1, located on the back panel, to its
on (up) position will disable the function.
USB Interface
A USB type A connector and associated
status LED is located on the back panel of
the Model 45DR. This data interface is used
only for updating the unit’s application firm-
ware. No audio data of any kind will pass
through it. For details please refer to the
Technical Notes section of this guide.
Technical Notes
3-Position Header
An internal 3-position header connec-
tor allows support for an alternate cover.
The cover, purchased as an option, has
an Anton-Bauer QR-Gold battery bracket
that is electrically wired in parallel with the
4-pin XLR DC input connector. The header,
located on the Model 45DR’s printed circuit
board, is Molex® part number 22-23-2031.
It mates with Molex housing number 22-01-
3037. To make the interconnection, sepa-
rate crimp terminals are attached to three
loose wires and then “snapped” into the
housing. Molex part number 08-50-0114
specifies crimp terminals that are appropri-
ate for 22 to 30 gauge wires. These termi-
nals are available worldwide from sources
such as Digi-Key (www.digikey.com).
Application Firmware Version
Display
As part of the Model 45DR’s power-up se-
quence the unit’s application firmware ver-
sion number is displayed. This is useful
when working with factory personnel on
application support and troubleshooting
situations. The five TO channel 2 LEDs are
used to display the major release number
with a range of 1 through 5. The five LEDs
associated with FROM channel 2 are used
to display the release sub-number which
ranges from 1 through 5. Refer to Figure 4
for a detailed view of the LEDs and the cor-
responding application firmware version
numbering scheme. The Model 45DR’s initial
application firmware release is version 2.1.
Figure 4. Detail of front panel showing the
status LEDs that display the application
firmware version. In this example, the
application firmware version is 2.1.
Major Release Number Release Sub-Number
O 4 .4 O
O 3 .3 O

2 .2 O
O 1 .1 