Miranda DENSITE series Bedienungsanleitung

SÉRIE DENSITÉ

ADA-1001 -Analogue Audio Distribution Amplifier

Guide to Installation and Operation

M450-9900-100

janvier 2002

ADA-1001

Introduction

L’ADA-1001 enables distribution of one analogue signal (audio

or time code) to four outputs.

All modules of the DENSITE Series include a push button on

the card front edge, which can assign the front panel controller

to consultation and adjustments of the board parameters. A

multi-coloured Led, visible with the door closed, reports the

card status.

The module gain is trim controlled (–8 to +32 dB) from the card

edge and set with a jumper.

The ADA-1001 requires a ‘single’ rear connector panel.

Features

•Analogue audio Distribution Amplifier 1 input / 4

outputs

•Balanced input and outputs

•Gain trim adjustment on card (-8 to +32 dB)

•Status LED and remote reporting

•Alarm configuration: absence signal, overload

•Easy to install audio connectors

AUDIO

OUTPUTS

AUDIO

INPUT

ADA-1001 Functional Block Diagram

Microcontroller

Rem

Control

Select

Status

Amp

Specifications

Input

Balanced

Signal: ......................analogue audio

Impedance: ..............> 20 k Ω

Common mode

rejection: ..................> 50 dB

Output

Balanced

Signal: .....................balanced analogue audio

Impedance: ..............< 50 Ω

Processing performance:

Gain: ........................-8 to +32 dB

Max. Level:................+25 dBu

SNR: ........................< -95 dBu

..................................20 Hz to 20 kHz unweighted

Distortion: .................< -85 dB (20 Hz to 20 kHz) @ +23 dBu

Freq. response: ........±0.2 dB (20 Hz to 20 kHz)

Overload threshold: .+23 dBu

Signal absence

-threshold:................-36 dBu

-no signal delay:.......from 0 to 255 s

Miscellaneous

Power:.......................3.5 W

Specifications are subject to change without notice.

ADA-1001

Guide to Installation and Operation

Menu Introduction

Most parameters are accessed and changed via an easy-to-use menu. The flow chart below outlines the entire ADA-1001

menu path. Each menu is described throughout this section.

The procedure and the operation mode are described in the common paragraph of the DENSITÉmanual. The menu

organisation is made out of a main menu and several sub-menus. A press on the [SELECT] front panel push button accesses

the menu. A lack of activity turns off the display. Default values are written with bold characters.

NO SIGNAL DELAY

CONFIGURE ALARM

STATUS

FACTORY DEFAULT

OVERLOAD ALARM LEVEL

ALARM REPORT

NO SIGNAL

ALARM REPORT

ALARM LEVEL

NONE, GPI

GREEN, YELLOW, RED, FLASH RED

0, ..., 15, ..., 255 [sec]

REAR PANEL ERROR, OVERLOAD, NO SIGNAL, ALL OK

RESTORE

Menu Description

{STATUS}

Displays status of the different board alarms. The higher-level

alarm is displayed, even if not configured to activate the

STATUS led. ALL OK indicates an absence of alarm.

REAR PANEL ERROR Indicates an absence of the rear

panel or an incompatibility between

the module and the rear panel. The

STATUS led turns on flashing red.

OVERLOAD Indicates an internal signal level

higher than +23 dBu.

NO SIGNAL Indicates an internal signal level lower

than –36 dBu during a user defined

period.

{NO SIGNAL DELAY}

NO SIGNAL DELAY Signal absence is declared when the

level signal is lower than –36 dBu

during the selected period, it can be

adjusted from 0 to 255 s. The default

value is set to 15 s.

ADA-1001

Guide to Installation and Operation

{CONFIGURE ALARM}

It is possible to associate the STATUS Led colour and/or a

GPI relay activation to each detected error.

Alarm relay activation depends of the ENABLE selection of

the controller board menu GPI REPORT.

ALARM LEVEL Associates to each error the STATUS

led colour: GREEN, YELLOW, RED

and FLASH RED. This selection has

no influence on the {STATUS} menu

display.

ALARM REPORT The default value NONE is assigned

to errors. Alarm relay activation will

be associated to an error when GPI is

set.

{FACTORY DEFAUT}

RESTORE reset the module with the factory default

parameters.

Status and Report

This table shows the STATUS led colour and the report action according to the level of a given error condition. Notice that the

“Flashing Yellow” indicates that the SELECT button on the front panel has been pushed, and the card is being accessed via the

communication protocol.

Non requested

messages GPI

Report Green Yellow Red Flashing

Red Flashing

Yellow

Overload on Input 1 µµ µµ -

No signal detected on Input 1 µµ µµ -

Card accessed via the communication protocol Yes

Rear Panel not matching -----Yes -

Factory default. µµ

Note: The non requested message affectation to an alarm status can only be accessed by the communication protocol (serial

port)

ADA-1001

Guide to Installation and Operation

Front Edge Presentation Board Presentation

PT1

ADJ.

STATUS

SELECT

SW1

Push Button

Status Indicator

Gain Adjustment

ADA-1001

Configuration

PT1

1 GAIN GAIN ADJUSTMENT

Trimmer for fine adjustment of the gain with an 8 dB

range.

JP1 The adjustment range is determined by the JP1

position.

-8 to 0, 0 to 8, 8 to 16, 16 to 24, 24 to 32,

Connections

ADA-1001 is used with the single rear panel ADA-1001-SRP

that includes 1 input to 4 outputs.

ADA-1001

AUDIO OUT

AUDIO

ADA-1001-SRP

High

GND

Low

JP1

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