Peavey CAB 80 User Manual

Page of 16
Description
The CAB
ª
8i and CAB
ª
8o,
respectively, are eight-input and eight-
output MediaMatrix
¨
gateways onto and
off of an Ethernet network for real-time
MediaMatrix
¨ 
audio distribution and
control. They employ Cobranet proprietary
protocol to ensure seamless, error-free
transmission of high-quality real-time
audio without drop-outs or lossy
compression across a 100baseT Ethernet
network.  
The CAB
ª
8i uploads eight channels of
either microphone-level or line-level
analog audio signals onto an Ethernet
network. Each input channel has software
controlled, continuously variable analog
input gain from -9 dB to +60 dB in 1 dB
steps. Each has 48-volt phantom power
and a 20 dB mic/line pad. Both functions
are software switchable. 
The CAB 8o downloads eight channels
of line-level analog audio signals from an
Ethernet network. Maximum output levels
are individually jumper-selectable between
+24 dBu, +18 dBu, +12 dBu, and +6 dBu.  
In addition to eight input or output audio
paths, both products incorporate eight
voltage-control input ports, eight software
controlled TTL outputs port, eight software
controlled relays with both normally open
and normally closed contacts, an RS-485
port with multi-drop connections, and two
word-clock linking BNC connectors.
Features
¥  Eight channels of either microphone 
or line-level audio transmitted onto 
an Ethernet network using CobraNet
ª
protocol sampled at 48 kHz (CAB 8i).
¥  Eight channels of line-level audio 
transmitted from an Ethernet network 
using CobraNet protocol sampled at 
48 kHz (CAB 8o).
¥  A/D converters are 24-bit, 64 times 
oversampling, using delta-sigma 
modulation (CAB 8i).
¥  D/A converters are 24-bit, 128 times 
oversampling, using delta-sigma 
modulation (CAB 8o).
¥  48-volt phantom power for microphone 
inputs, individually software switchable 
on each input channel (CAB 8i).
¥  24- or 20-bit transmission quantization 
at a 48 kHz sampling rate.
¥  Eight channels of analog control voltage
input ports which allow external 
switches, potentiometers, or voltage 
sources to control MediaMatrix software 
parameters via an Ethernet link.
¥  Eight channels of TTL control outputs 
ports which are software controllable via 
an Ethernet link.
¥  Eight relays, with both normally open 
and normally closed contacts, which 
allow software control of external 
devices via an Ethernet link.
¥  A non-Ethernet RS-485 control port with 
two mulit-drop connections.
¥  Two word clock linking connectors that 
enable auto-switch-over to a second 
unit, should one unit fail.
¥  One rack-unit (1-3/4"), fan-cooled 
chassis.
Applications
¥  Stadiums
¥  Cruise ships
¥  Multi-purpose facilities
¥  Auditoriums
¥  Large-scale paging systems
¥  Schools
¥  Courts of law
¥  University campus buildings
¥  Theme parks
¥  Performing arts centers
¥  Distance learning
¥  Hotel meeting rooms
¥  Houses of worship
¥  Conference centers
¥  Teleconferencing
¥  Live sound microphone snakes
¥  Civic centers
¥  Music clubs
¥  Theaters
¥  Arenas
¥  Any facility requiring distribution of 
multiple microphone or line-level 
signals
S
P
E
C
I
F
I
C
A
T
I
O
N
S
MediaMatrix
®
CAB
™ 
8i and
CAB
™ 
8o