Redback A 4920 Manuel utilisateur

www.altronics.com.au

User manual revision number: 1.0 22/09/2016

Operating Manual

A 4920 Pre Amplier Balanced Mic/Line Wallplate

Redback® Proudly Made In Australia

Distributed by Altronic Distributors Pty. Ltd.

Phone: 1300 780 999 Fax: 1300 790 999 Internet: www.altronics.com.au

OVERVIEW

This remote mic/line pre-amp wallplate accepts either a microphone or line input for conversion to a balanced high level

signal. The 3V output signal is carried via Cat5e cable, suitable for distribution up to 500m without interference. Mic input

is via a balanced XLR whilst the line input is via 2 x RCA sockets or 3.5mm jack. The Cat5e output cable terminates to an

interface module enabling a balanced mic/line, or unbalanced line signal to be fed into the amplier. Power is supplied via

the included 24V Plugpack which is connected to the interface box. Power for the wallplate is provided through the Cat5e

cable connection.

FEATURES

• Balanced 3 pin XLR mic input

• Dual RCA or 3.5mm line input (Note : audio is internally mixed to become mono signal)

• Up to 500m transmission range

• Uses economical Cat5e cable for connection between wall plate and interface box

• Balanced mic/line or unbalanced line output

• Level control

• Wallplate powered via Cat5e cable from interface box

• 24V DC plugpack supplied

www.altronics.com.auRedback® Proudly Made In Australia

REDBACK A 4920 Balanced Mic/Line Pre-Amp Wallplate

Vol

Wall

Plate On

24VDC Mic Out Line Out

- + - + R L

A 4920 Balanced Mic/Line Pre-Amp

Cat5e max. 500m

Mic Music Volume

O Max

A 4920 Balanced Mic/Line Pre-Amp

24V DC Plugpack

Amplifier Balanced mic/line

Unbalanced line

Microphone

CD Player, Tuner etc

Media Player,

Mobile Phone etc

A 4920 Wallplate

A 4920 Interface Box

Fig. 1: Connection Diagram.

Fig. 2: Fitting of the internal jumper to select either balanced mic level output or balanced line level output.

(To change the jumper, remove the lid from the interface box and then t the jumper for desired output).

Fitting of Internal Jumper

Balanced line

level output

Balanced mic

level output

MIC LEVEL

LINE LEVEL

MIC LEVEL

LINE LEVEL

MIC LEVEL

LINE LEVEL

Jumper

Table des matières

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