Cisco TelePresence System Codec C40 Manual de usuario descargar pdf (Pagina 17)

Cisco TelePresence System Codec C40 Physical interface guide

D14646.02 Codec C40 Physical Interface Guide TC4.0, November 2010.

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Hardware Information

Mic 1–2 * Line in 1–2 Line out 1–2

Signal type Balanced Unbalanced Unbalanced

Connector (codec) XLR–F Female RCA/

phono

Female RCA/

phono

Input impedance 8100 Ohm (pin 2–3) 10 k Ohm

Output impedance 100 Ohm

Max input level when set to Min input level –18dBu/275mVpp 18dBu/17.4Vpp

Max input level when set to Max input level –42dBu/35mVpp -6dBu/2.2Vpp

Max output level when set to Min output level -6dBu/2.2Vpp

Max output level when set to Max output level 18dBu/17.4Vpp

Gain range <–24dB (24 steps of 1dB) –>

Phantom power 48 Volt +/- 2%

Phantom power resistor pin 1 6800 Ohm

Phantom power resistor pin 2 6800 Ohm

Max phantom power current (per mic) 14mA

Audio hardware information table

Volume control

Ring tone volume* Audio gain value

0 0

1 -34.5 dB

70 0.0 dB

100 15.0 dB

Volume control table

* The ring tone volume, which is displayed on screen

when using the TRC5 remote control, goes from 0 to 20.

* This specification is valid for Mic 1–2 inputs if Microphone Level setting is selected

Contents

Introduction

The physical interface

Connecting to the codec

The physical interface

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Cisco TelePresence System Codec C40 Manual de usuario Pagina 17