Cisco TelePresence System Codec C90
Contents
Audio outputs,
continued...
Line Out 1–4 (RCA)
4xRCA sockets, audio output 1-4
Can be configured as two stereo pairs.
Main connectors. Line Out 1 (left) and Line
Out 2 (right) are the main connectors to the
local loudspeaker system.
The local loudspeaker system may or may
not include the DNAM (Digital Natural Audio
Module).
Default configuration Line Out 1-2. In default
configuration, Line Out 1 and 2 are configured
as stereo speakers.
if a DNAM is present or SPDIF is active on
Line Out 1, then Line Out 1 provides a digital
stereo speaker signal and Line Out 2 is not
active.
Default configuration Line Out 3-4. In default
configuration, Line Out 3 and 4 are configured
as stereo line out for external recording
devices as VCR's or DVD recorders.
if a DNAM is present or SPDIF is active on
Line Out 3, then Line Out 3 provides a digital
stereo speaker signal and Line Out 4 is not
active.
SPDIF - Sony/Philips Digital Interface, used by
the Digital Natural Audio Module.
D14644.03 Codec C90 Physical Interface Guide TC4.1, February 2011.
© 2010-2011 Cisco Systems, Inc. All rights reserved.
Introduction
Connecting to the codec
RCA pin-out
External view of socket
Signal
GND
RCA - Phono Plug (the Radio Corporation of
America)
The physical interface
The physical interface
4xLine Out
What is a Line output
A Line output consists of all signals from
local side and all signals from far end side.
What is a Speaker output
A Speaker output consists of all signals
from local side, except microphones, and
all signals from far end side.
18
Physical interface guide
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Left channel
The Left channel consists of all Left channel
and Mono signals.
Right channel
The Right channel consists of all Right
channel and Mono signals.
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