Cisco TelePresence System Codec C90 Manual - Página 15

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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.

Introduction

Connecting to the codec

2xHDMI In

XLR pin-out

External view of socket

Pin 1: Gnd

Pin 2: Hot

Pin 3: Cold/neutral

XLR - Electrical Connector (Cannon XL

series with Rubber compound)

The physical interface

HDMI pin-out

External view of socket

Pin: 19

Pin: 18

Please refer to previous page for pin-out

scheme.

Physical interface guide

8xMicrophone /Line In