Owner's manual

VoiceBox 4 I/OP
User Manual
 Attero Tech LLC 2010 Page 17 614-00008-02
5 – ARCHITECTS & ENGINEERS SPECIFICATION
The CobraNet interface unit shall provide four mic/line analog inputs on rear panel pluggable 3-pin barrier strips. Selectable
gain of 0 dB, +30 dB, +50 dB, and +12 V phantom power shall be provided on rear panel DIP switches for each analog input
channel. The internal analog to digital signal conversion shall be performed at 16, 20, or 24-bit resolution with a sampling
frequency of 48 kHz. Eight channels of CobraNet inputs and eight channels of CobraNet outputs are supplied via the rear
panel RJ-45 connector. Four channels of balanced line-level outputs shall be provided on the rear panel pluggable barrier
strips. Interface power shall be provided by either an 802.3af compliant PoE network switch or a +12 V DC external power
source.
The CobraNet interface shall provide DSP capabilities for independent channel gain, equalization and compression on all
four local input channels. Each local output channel shall have DSP capabilities for equalization, output limiting, gain, and
delay. The DSP shall also provide a fully configurable 13-input, 12-output matrix mixer with an input from a configurable
sine wave generator.
The CobraNet Interface shall be compatible with Attero Tech Control Center software for flexible control and monitoring in
system applications. The CobraNet Interface shall include a UL listed power source. The CobraNet Interface shall be
compliant with the RoHS directive.
The CobraNet Interface shall be the Attero Tech VoiceBox 4 I/OP.
5.1 – Device Specifications
CobraNet Network
Physical Level: Standard Ethernet
Connector: Single RJ-45
Cable Quality: CAT-5
Transmission Speed: 100 Mbps
RS-232 Port
Physical Levels: Standard RS-232
Connector:
3-Pin pluggable Phoenix
style
Power Requirements
Class 2 802.3af PoE PD
Compliant
or
Optional 12 V DC @ 1A
Power Consumption 11 Watts maximum
Dimensions 1.5” H x 7.25” W x 6.5” D
Weight 27 oz, 760 g
Compliance
RoHS, UL Listed power
source, FCC Part 15 Class
A Compliant
Audio Inputs
Gain:
Selectable 0 dB, +30 dB,
+50 dB
Input Type:
Balanced and RF filtered
3-pin pluggable
Input Impedance: > 1.5K ohms, any gain
Maximum Input Levels:
+9 dBu @ 0 dB gain,
-23 dBu @ +30 dB gain,
-42 dBu @ +50 dB gain
Phantom Power:
+12 V, selectable per
channel
Audio Outputs
Output Type:
Balanced 3-pin pluggable
with automatic muting
upon loss of CobraNet
signal
Output Impedance:
200 ohms balanced,
100 ohms unbalanced
Maximum output level: +10 dBu
Audio Performance:
EIN: -128 dBu
Noise: < -86 dBu @ 0 dB gain
System THD+N:
< 0.05% at any gain input
signal 3 dB below max
Frequency Response 20 Hz – 20 kHz, +/- 1 dB
Sample Rate 48 kHz only