Datasheet

Studio Technologies, Inc. Model 43D IFB Interface, Issue 1, Page 3
RJ45 connector. While compatible with standard RJ45 plugs,
etherCON allows a ruggedized and locking interconnection
for harsh or high-reliability environments. The Model 43D’s
operating power can be provided by way of the Ethernet in
-
terface using the Power-over-Ethernet (PoE) standard. This
allows fast and efficient interconnection with the associated
data network. To support PoE power management, the Model
43D’s PoE interface reports to the power sourcing equipment
(PSE) that it is a class 3 (mid power) device. The unit can
also be powered using 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 interconnections. 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 connected 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 standalone
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 en-
hanced in the future. A USB connector, located on the Model
43D’s back panel, allows the application 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 Ethernet connection, helping to ensure
that its capabilities remain up to date.
Specifications
Power Sources:
Power-over-Ethernet (PoE): class 3 (mid power,
≤12.95 watts) per IEEE 802.3af
External: 10 to 18 volts DC, 1.0 amp maximum at
12 volts DC
Network Audio Technology:
Type: Dante Audio-over-Ethernet
Bit Depth: up to 24
Sample Rates: 44.1, 48 kHz
Number of Receiver (Input) Channels: 4
Dante Audio Flows: 2 receiver
Network Interface:
Type: twisted-pair Ethernet, Power-over-Ethernet (PoE)
supported
Data Rate: 100 Mb/s (10 Mb/s Ethernet not supported)
Powered IFB Outputs: 2
Type: 2-channel analog powered IFB, unbalanced
(pin 1 common; pin 2 DC with channel 1 audio;
pin 3 channel 2 audio)
Compatibility: 2-channel listen-only IFB user devices such
as those offered by Studio Technologies
Power Source: 28 volts DC, 120 mA maximum, nominal
Analog Audio Level: –10 dBu, nominal, +4 dBu maximum,
pins 2 and 3
Frequency Response: ±1 dB, 20 Hz-20 kHz
Distortion (THD+N): <0.02%, measured at 1 kHz,
pins 2 and 3
Signal-to-Noise Ratio: >85 dB, A-weighted, measured
at 1 kHz, pins 2 and 3
Line-Level IFB Outputs: 2
Type: transformer-coupled, capacitor isolated
Nominal Level: –10 dBu
Maximum Level: +10 dBu into 2 k ohms
Frequency Response: –1 dB @ 20 Hz, –1.3 dB @ 20 kHz
Distortion: <0.04%, measured at 1 kHz
Signal-to-Noise Ratio: >87 dB, A-weighted, measured
at 1 kHz
Meters: 4
Function: displays level of IFB output audio channels
Type: 5-segment LED, modified VU ballistics
Connectors:
Powered and Line-Level IFB Outputs: 3-pin male XLR
Ethernet: Neutrik etherCON RJ45
External DC: 4-pin male XLR
USB: type A receptacle
Dimensions – Overall:
8.7 inches wide (22.1 cm)
1.72 inches high (4.4 cm)
8.3 inches deep (21.1 cm)
Mounting Options: single-unit, dual-unit, and combina-
tion-unit rack-mount front panels; uses one space (1U) in a
standard 19-inch rack
Weight: 1.8 pounds (0.80 kg); rack-mount front panels add
0.2 pounds (0.09 kg)
Specifications subject to change without notice.
Studio Technologies, Inc.
Skokie, Illinois USA
© by Studio Technologies, Inc.
, September 2015
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