Audio Inputs - Cisco TelePresence System Codec C90 Manual

Cisco TelePresence System Codec C90
Contents

Audio inputs

Unused, but connected audio inputs must be
set to Off to avoid unwanted audio/noise.
Microphone/Line In 1–8 (XLR)
8 x Balanced XLR sockets, audio input 1–8.
Main connector. The Microphone/Line In 1 is
the main connector for the microphone.
All eight microphone inputs are for balanced
electret microphones, 48V phantom powered
via XLR connectors.
The phantom powering of all eight XLR
sockets can be individually switched off. The
input will then be a balanced line level input.
All Microphone/Line In 1–8 are equipped with
acoustic echo canceller.
Use Microphone/Line In 1–8 to connect to an
external microphone amplifier or an external
mixer.
Default configuration. In default configuration,
all Microphone/Line In inputs are enabled and
configured as microphones.
HDMI In 3, 4
2 x HDMI connectors, audio input 3, 4
Typical use: Use HDMI In 3 or 4 (2–8 channels)
to connect to external playback devices as
DVD players. Each input support up to two
channels at 48kHz sampling rate.
D14644.03 Codec C90 Physical Interface Guide TC4.1, February 2011.
© 2010-2011 Cisco Systems, Inc. All rights reserved.
Introduction Connecting to the codec
2xHDMI In
XLR pin-out
External view of socket
Pin 1: Gnd
2 1
Pin 2: Hot
Pin 3: Cold/neutral
3
XLR - Electrical Connector (Cannon XL
series with Rubber compound)
The physical interface The physical interface
HDMI pin-out
External view of socket
Pin: 19 17 3 1
Pin: 18 16 4 2
Please refer to previous page for pin-out
scheme.
15
Physical interface guide
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8xMicrophone /Line In
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