Manual
Issue 1, September 2015 Model 43D User Guide
Page 8 Studio Technologies, Inc.
audio quality is maintained. Additional LED
indicators are provided on the front panel,
offering status indications of the incoming
power and two IFB power sources.
Ethernet Data, PoE, and DC
Power Source
The Model 43D connects to a data network
using a standard 100 Mb/s twisted-pair
Ethernet interface. The physical intercon-
nection is made by way of a Neutrik®
etherCON RJ45 connector. While compat-
ible with standard RJ45 plugs, etherCON
allows a ruggedized and locking intercon-
nection for harsh or high-reliability environ-
ments. The Model 43D’s operating power
can be provided by way of the Ethernet
interface using the Power-over-Ethernet
(PoE) standard. This allows fast and
efficient interconnection with the associ-
ated data network. To support PoE power
management, the Model 43D’s PoE inter-
face reports to the power sourcing equip-
ment (PSE) that it is a class 3 (mid power)
device. The unit can also be powered us-
ing an external source of 12 volts DC. Four
LEDs on the back panel display the status
of the network connection, Dante interface,
and PoE power source.
Simple Installation
The Model 43D uses standard connectors
to allow fast and convenient interconnec-
tions. An Ethernet signal is connected
using a Neutrik etherCON RJ45. If Power-
over-Ethernet (PoE) is available operation
will commence immediately. An external
12 volt DC power source can also be con-
nected by way of a 4-pin XLR. Powered IFB
and line-line IFB outputs are made using
3-pin male XLR connectors. The Model
43D is housed in a rugged yet lightweight
aluminum enclosure that is designed to be
“field tough.” It can be used as a stand-
alone portable unit, supporting what’s
known in the broadcast world as “throw-
down” applications. Rack-mount options
are also available allowing one or two
units to be mounted in one space (1U)
of a standard 19-inch rack enclosure.
Future Capabilities and
Firmware Updating
The Model 43D was designed so that
its capabilities can be enhanced in the
future. A USB connector, located on the
Model 43D’s back panel, allows the ap-
plication firmware (embedded software)
to be updated using a USB flash drive. To
implement the Dante interface the Model
43D uses Audinate’s Ultimo™ integrated
circuit. The firmware in this integrated
circuit can be updated via the unit’s Ether-
net connection, helping to ensure that its
capabilities remain up to date.
Getting Started
In this section signal interconnections
will be made using the connectors located
on the back panel of the Model 43D. Con-
nections to the two powered IFB and two
line-level IFB outputs can be made using
four 3-pin XLR connectors. An Ethernet
data connection will be made using either
a standard RJ45 patch cable or an ether-
CON protected RJ45 plug. A 4-pin XLR
connector allows the connection of an
external source of 12 volts DC.
System Components
Included in the shipping carton are the
Model 43D IFB Interface and a printed
copy of this guide. If a rack-mount front