Attero Tech InBox/OutBox - Manual (Page 29)

InBox / OutBox
User Manual
 Attero Tech LLC 2010 Page 24 614-00005-04
7.3 – InBox M3
The CobraNet interface unit shall provide a mic/line analog input on front panel with XLR and TRS connectors. A selectable
gain of 0dB or +30dB, and +12V phantom power option shall be provided via front panel switches. The interface will also
provide two line level analog inputs on front panel with RCA connectors as well as two line level inputs on the front panel
with a 3.5mm stereo jack connector. The internal analog to digital signal conversion shall be performed at 24-bit resolution
with a sampling frequency of 48 kHz. The CobraNet interface unit shall receive power over the Ethernet cable from an
802.3af PoE compliant network switch. The CobraNet interface shall be wall mounted in a standard dual gang junction box.
The CobraNet interface shall be compatible with Attero Tech Control Center software for flexible control and monitoring in
system applications. The CobraNet interface shall be compliant with the RoHS directive.
The CobraNet interface shall be the Attero Tech InBox M3.
7.3.1 – InBox M3 Device Specifications
CobraNet Network
Physical Level: Standard Ethernet
Connector: Single RJ-45
Cable Quality: CAT-5
Transmission Speed: 100 Mbps
Power Requirements
48V via 802.3af PoE
compliant Ethernet switch
Power Consumption 4W
Dimensions
Main Unit: 3.59” x 2.72” x
1.965” (w x h x d)
Weight 0.75 lbs
Compliance
RoHS, FCC Part 15 Class B
Compliant
Audio Inputs
Input Types:
One balanced, RF filtered
(XLR/TRS)
Two single-ended, RF filtered
(RCA)
Two single-ended, RF filtered
(1/8” stereo jack)
Input Impedance:
XLR –Mic Mode - 2 kΩ
XLR –Line Mode - 37 kΩ
All others 10 kΩ
Input Gain (XLR only) Selectable: 0 dB, +35 dB
Maximum Input
Levels (XLR)
+8.5 dBu @ 0 dB gain
Maximum Input
Levels (RCA)
+8.2 dBu @ 0 dB gain
Maximum Input
Levels (1/8” jack)
+8.2 dBu @ 0 dB gain
Audio Performance:
System Noise (XLR)
Mic Mode -73 dBu
Line Mode -83 dBu
System Noise (RCA) Line Mode -75dBu
System Noise (1/8”
jack)
Line Mode -75 dBu
System THD+N (XLR)
Mic Mode < 0.025 % - 1 kHz
input @ -30 dB below
clipping
Line Mode < 0.004 % - 1 kHz
input @ -3 dB below clipping
System THD+N (RCA)
Line Mode < 0.007 % - 1 kHz
input @ -3 dB below clipping
System THD+N (1/8”
jack) Line Mode < 0.009 % - 1 kHz
input @ -3 dB below clipping
Frequency Response 20 Hz-20 kHz, +/- 1 dB
Sample Rate 48 kHz only