®
Vocia
VO-4
Operation Manual
Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 www.biamp.com
TABLE OF CONTENTS
VOCIA OUTPUT 4 (VO-4) FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Setup and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1. Power Indicator LED ..............................................................................4
2. Signal LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Control LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REAR PANEL CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Device ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CobraNet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Network Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Control Outputs ....................................................................................7
Control Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Audio Inputs .......................................................................................7
Ground Screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INSTALLATION ....................................................................................8
SPECIFICATIONS & BLOCK DIAGRAM .......................................................9
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
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VOCIA OUTPUT 4 (VO-4)
Power/
Network
Audio Cha nnel Control Input sControl Output s
Output 4
1
2341234
1 234
®
The VO-4 is a networked audio output expansion device allowing the user to add four line-level output channels to a Vocia
accepts four channels of digital audio input via CobraNet® and provides four line-level analog audio outputs. The VO-4 features embedded
DSP and on-board memory to process and store all device-specic conguration information locally and includes comprehensive, xed-chain,
digital-signal processing. As part of the Vocia system, the VO-4 meets paging requirements for facilities of all sizes.
system. The VO-4
FEATURES
Converts digital to analog•
Four removable terminal block connectors for line-level outputs•
Four control inputs and four control outputs•
Software-congurable local audio signal processing, including gain, lters, and compressor/limiter•
Rotary switches for unit identication•
Power Over Ethernet (PoE)•
CobraNet audio/control with dynamic use of available bundles, plus power over single Ethernet cable•
Status LEDs to indicate signal and clip•
CE• marked and RoHS compliant
Covered by • BIAMP Systems’ warranty
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VO-4 FRONT PANEL
Power/
Network
Audio Ch annel Control Inpu tsControl Outpu ts
Output 4
1
2341234
1 234
Clip
-3
-18
-48
Red
Ye llow
Green
Nominal
Threshold
Setup and Use
The Vocia software provides an intuitive interface for conguration, DSP equalization, and programming of the VO-4. The information supplied
by this manual relates to physical connections and assignment. For more details on software setup, please consult the Vocia Help File.
1. Power Indicator LED 2. Signal LEDs 3. Control LEDs
1. Power Indicator LED
On the left of the front panel, the VO-4 has a single LED that indicates power and connectivity status:
1. Not illuminated: The device is not powered.
2. Flashing green: The unit is receiving power but not data, or the unit has not been congured correctly.
3. Solid green: The unit is operational, has been congured and is receiving PoE.
2. Signal LEDs
Four LEDs located in the center of the front panel act as audio signal identiers for the four input channels and are useful for setting optimum signal
levels. Each LED has four states. Please see the table below for the signal mapping to each of the LEDs. Detailed metering of current output levels
can be obtained in real time via the Vocia software interface.
Red Yellow Green Dark
Signal above clip threshold
> -3dBFS
3. Control LEDs
The control LEDs signal the current state of the control I/Os. The rst four are input status indicators, and the second four are output status indicators. They have three states:
Signal above nominal but below
clip threshold
> -18dBFS
< -3dBFS
Signal above minimum but
below nominal threshold
> -48dBFS
< -18dBFS
Signal below minimum threshold
< -48dBFS
Yellow Green Dark
Relays are energized > input threshold Not active
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