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The ATB-300 Audio Toolbox
Program Switcher/Router With Silence Sensor
ATB-300 Description:
The ATB-300 series audio switchers can be ordered in 4 or 8 channel versions in all digital, hybrid analog/digital or all
analog versions. Simply select from the 10 different model configurations available. In addition to standard AES3 and
analog balanced XLR I/O we offer composite base band I/O versions still popular with FM broadcast applications. All
ATB-300 versions feature programmable silence sensor switching capability along with an auto revert feature that
monitors a failed channel and when valid audio is restored can switch back to the primary channel without operator
intervention. Remote control the ATB-300 with GPIO, RS232/485 serial and optional Internet connectivity kit available
for use with BDJ graphical user interface software. In addition to these remote control interfaces BDI offers GPMRC
remote panel for intra facility remote control. The ATB-300 series audio switchers allow simple selection of source to be
routed to all outputs simultaneously. The unit also features alarm status relays for remote status and for local source start
command for local backup audio applications. The ATB-300 series offer synchronous digital audio switching for glitchfree, pop-free switching. We added an extra soft fade feature that provides seamless switching between sources eliminating transient discontinuities in the audio output.
Convenient Tascam standard I/O for analog and AES standard DB-25 connectors are used for audio connections. BDI
offers 110 ohm XLR and 75 ohm BNC digital interface panels and XLR balanced analog I/O panels for conenient plug
and play installation.
Standard configurations available:
Model Number
ATB-300-1
ATB-300-2
ATB-300-3
ATB-300-4
ATB-300-5
ATB-300-6
ATB-300-7
ATB-300-8
ATB-300-9
ATB-300-10
Description
4- AES I/O
4- AES I/O, 4 - Analog L/R Balanced Input
4- AES I/O, 4 - Analog L/R Balanced Out
4 - Analog L/R Balanced I/O
4- AES I/O, 4 - Analog L/R Balanced I/O
8 - AES I/O
8 - Analog L/R Input, 4 - Analog L/R Out
8 - Analog L/R I/O
4 - AES I/O, 4 - Composite FM Stereo I/O
4 - Composite FM Stereo I/O, 4 - L/R Balanced Input
Broadcast Devices, Inc.
Tel. (914) 737-5032 Fax.. (914) 736-6916
Visit us on the web at: www.Broadcast-Devices.com
Technical Specifications
Digital
Inputs:
Input Sample Rate:
Outputs:
Connector Style:
Remote Control:
Status:
AES3 Balanced 110 Ohm - 75 Ohm Unbalanced Interface Panel Available
8-96 KHz Frame Rate Converted to 44.1 or 48 KHz
AES3 Balanced - 75 Ohm Unbalanced Interface Panel Available
DB-25 I/O - DB-25 to XLR Interface Panels Available from BDI
GPIO Interface closure to ground or Serial RS-232/485 - Also
Compatible with BDI GPMRC Remote Pushbutton Panel and optional BDI model IAS100 Internet Interface Kit Available
Open Collector GPIO or Option Serial Interface, two additional
form C relays available for audio loss alarm - programmable maintained or
momentary closure for start of auxiliary audio sources, Complete channel select/audio
presence status when used with optional BDI IAS-100 Internet Interface Kit
Analog
Inputs:
Outputs:
Frequency Response:
Balanced +4 dBm - nominal program level
Balanced +4 dBm nominal program level consistent with -20 dBFS for AES3 I/O
+/- 0.25 dB from 20 Hertz to 20 KHz
General
Power Requirements
Physical
Environmental:
100 - 240 VAC 50 - 60 Hertz
19” W X 1.75: H X 10” D EIA Rack Standard
0-60 Degrees C Non Condensing Atmosphere
1
1
2
2
AES Inputs
Basic Block Diagram of the
ATB-300-5 System showing
hybrid analog/digital model
other models available see
page 1 for all configurations
AES Outputs
3
3
4
4
5
6
Analog L/R
Inputs
5
6
Analog L/R
Outputs
DSP Engine
7
7
8
8
Remote Control/Status
www.broadcast-devices.com
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