Miranda AMX-101i Manuale di istruzioni

ELECTROMAGNETIC COMPATIBILITY

-This equipment has been tested for verification of compliance with FCC Part 15, Subpart

B, class A requirements for Digital Devices.

-This equipment complies with the requirements of EN55022 Class A, Electromagnetic

Emissions, En 60555-2 & -3, Disturbance in Supply Systems and EN50082-1,

Electromagnetic Immunity.

CONTACT MIRANDA

For technical assistance, please contact the Miranda Technical support centre nearest

you:

Americas

Telephone:

+1-800-224-7882

e-mail:

techsupp@miranda

.com

Asia

Telephone:

+81-3-5730-2987

e-mail:

asiatech@miranda

.com

Europe, Middle East,

Africa, UK

Telephone:

+44 (0) 1491

820222

e-mail:

eurotech@miranda

.com

France (only)

Telephone:

+33 (0) 1 55 86 87

e-mail:

francetech@miranda

.com

Visit our web site at www.miranda.com

CONTENTS

1 AMX-101i Analog Audio Multiplexer .....................................................1

1.1 Introduction ............................................................................................................. 1

1.2 Features.................................................................................................................. 1

2 Installation.............................................................................................2

2.1 Unpacking............................................................................................................... 2

2.2 AMX-101i Mechanical Installation........................................................................... 2

2.3 Rear Panel Label .................................................................................................... 3

2.4 AMX-101i Electrical Installation............................................................................... 5

2.5 600 ΩInternal Termination Jumper........................................................................ 6

3 Operation..............................................................................................7

3.1 AMX-101i User Interface......................................................................................... 7

3.2 Menu Introduction ................................................................................................... 8

3.3 Input Status Monitoring......................................................................................... 10

3.4 Audio Status Monitoring........................................................................................ 10

3.5 Audio Group Selection.......................................................................................... 11

3.6 Mute Selection ...................................................................................................... 11

3.7 Level Adjustments................................................................................................. 12

3.8 Groups Present Monitoring................................................................................... 12

3.9 Channel Swapping................................................................................................ 13

3.10 Audio Delay......................................................................................................... 13

3.11 Overwrite............................................................................................................. 14

3.12 Channel Status Bit Selections............................................................................. 14

3.13 Calibration........................................................................................................... 14

3.14 Factory Reset...................................................................................................... 15

3.15 Tone and Color Bar Generator Selection............................................................ 15

4 Specifications......................................................................................16

1 AMX-101i Analog Audio Multiplexer

1.1 Introduction

The AMX-101i is a high-quality, high-performance analog audio

multiplexer/embedder designed to insert two 20-bit sampled analog audio stereo

signals into a single SMPTE 259M-C serial digital video signal. The AMX-101i

has an on-board audio test tone signal and automatic 525/625 input detection

with full EDH monitoring.

The AMX-101i is a member of the imaging family of digital video modules and

therefore requires the imaging Quartet-A-75 or the imaging Symphonie frame with

Symphonie-R-A75 rear module for mounting and power.

1.2 Features

Input

§Serial digital 4:2:2 input with active loop-through

§2 stereo/4 monaural analog audio inputs

§Automatic 525/625 input detection

§Input error detection and handling (EDH) monitoring

§250 m automatic cable equalization

Outputs

§3 serial 4:2:2 digital video outputs

§EDH insertion on all serial 4:2:2 outputs

Processing

§20-bit high-quality analog to digital audio conversion

§Digital de-emphasis filter

§Channel status bit insertion

§-7 to +24 dBu input level range

§Right/left swap capability

§Channel swap capabilities

§Programmable audio delay (up to 10 frames)

§Built-in audio test tone and color bar test signals

2 Installation

2.1 Unpacking

Make sure the following items have been shipped with the AMX-101i. If any of

the following items are missing, contact your distributor or Miranda Technologies

Inc.

§AMX-101i Analog Audio Multiplexer

§AMX-101i rear panel labels (2)

§This manual

2.2 AMX-101i Mechanical Installation

Due to its audio inputs, the AMX-101i must be mounted within Quartet-A-75 or or

Symphonie imaging frames using Symphonie-R-A75 or Symphonie-R-A110 rear

modules. This section describes how to install the AMX-101i in any of these

frames. It is not necessary to switch off the power from these frames when

installing or removing the AMX-101i.

2.2.1 Quartet-A-75 Frame

To install this module into the audio Quartet frames follow these steps. For a

closer look at module installation and removal, refer to the frame's Guide to

Installation and Operation.

1. Remove the frame's front panel by rotating the thumb screws counter-

clockwise. Pull on the handles.

2. Select an empty slot.

3. Carefully place the AMX-101i between a set of module guides and gently

push the module towards the rear of the frame until the module's edge

connector is secured to the backplane. Pull lightly on the module verifying

that it does not move.

4. Replace the frame's front panel. Make sure to rotate the thumb screws

clockwise in order to secure it to the chassis.

2.2.2 Symphonie Frame

To install this module into the Symphonie housing frame, follow these steps. To

function, the AMX-101i requires the Symphonie-R-A75 or –R-A110 rear module.

For a closer look at module installation and removal, refer to the frame's Guide to

Installation and Operation.

1. Remove the front panel door by pulling on the door handles and gently

lowering it.

2. Select an empty slot.

3. Carefully place the module between the module guides and slowly push the

module towards the rear of the frame until the module's edge connector is

secured to its rear module. A light pressure to mate the connectors may be

required. Pull lightly on the module verifying that it does not move.

4. Replace the front panel door.

2.3 Rear Panel Label

A connector label has been shipped with the AMX-101i. This label is to be

installed on the frames’ rear panel in order to identify the module's external

connectors.

2.3.1 Quartet-A-75 Frame

To install the rear panel label on a Quartet-A-75 frame, follow these steps while

referring to Figure 2.1.

1. Remove the screws associated with the AMX-101i connectors.

2. Carefully apply the label to the connectors.

3. Replace the screws making sure not to damage the label.

Figure 2.1 Quartet rear panel label installation

AMX-101i ANALOG AUDIO MULTIPLEXER

AUDIO IN

Quartet-A-75 rear panel

IN 4:2:2 LOOP 4:2:2 OUT

1 2 3

2.3.2 Symphonie Frame

To install the Symphonie label, follow these steps while referring to Figure 2.2.

1. On Symphonie’s rear panel, locate the appropriate connectors.

2. Remove the rear label mounting screws from the rear module.

3. Carefully apply the label to the connectors making sure the label’s text is read

from top to bottom. Make sure to apply the label to the Symphonie-A75 rear

module.

4. Replace the screws making sure not to damage the label.

Figure 2.2 Symphonie rear panel label installation

Symphonie-R-A75

AMX-101i ANALOG AUDIO MULTIPLEXER

4:2:2 OUT AUDIO ININ 4:2:2 LOOP 1 2 3

Label

2.4 AMX-101i Electrical Installation

Refer to Figure 2.5 for rear panel electrical installation.

4:2:2 IN: serial digital video input with active loop-through

Connect a 4:2:2 serial digital video source to 4:2:2 IN. The AMX-101i accepts a

4:2:2 serial digital video signal in either 525 or 625-line format. This input must

conform to the SMPTE 259M-C standard. Make sure the input 4:2:2 cable has a

maximum length of 250 m (850'). Refer to section 3.3, Input Status Monitoring

for a description of error and EDH status on the input signal.

Make sure that all serial digital video connections are point-to-point. For instance,

there must be a point-to-point connection between the 4:2:2 IN BNC and the

source equipment. If a T-connector is used to connect other equipment, the

maximum specified cable length is no longer valid.

AUDIO IN: analog audio input

Connect 2 stereo or 4 monaural balanced analog audio signals to the AUDIO IN

connector. Figure 2.3 provides the pinout of the HD-15 rear panel connector.

Figure 2.3 AUDIO IN connector pinout (HD-15)

4:2:2 OUT 1, 2, and 3: serial digital video outputs

Serial digital video with inserted audio is provided by the 4:2:2 OUT 1, 2, 3

connectors. All outputs conform to the SMPTE 259M-C standard.

Gnd

Low

High

Low

High

Gnd

Low

High

Low

High

Right

Left

Stereo 2

Stereo 1

Figure 2.4 AMX-101i electrical installation (A75 rear panel)

2.5 600 ΩInternal Termination Jumper

When 600 Ωaudio impedance equipment is connected to the AMX-101I, its input

impedance must be internally calibrated for 600 Ω. To do so, perform these

steps. It is necessary to use the imaging Extender Module to access the

potentiometers (refer to the frame’s Guide to Installation and Operation for more

information).

1. Referring to Figure 2.5 next page, install a jumper on the appropriate

connector LK1 through LK4. LK1, LK2, LK3, and LK4 correspond to inputs

R1, L1, R2, and L2 respectively.

2. Install the analog audio input.

3. Turn on the AMX-101i.

4. Using a technician's screwdriver, slowly tune the corresponding

potentiometer until the PEAK LED turns on. PEAK 1 LED is used to adjust L1

or R1 and PEAK 2 for L2 or R2.

5. Now, carefully reverse the tuning direction of the potentiometer stopping as

soon as the corresponding PEAK LED turns off.

6. Remove the jumper.

7. If you wish to calibrate all four inputs, repeat steps 1 to 6.

AMX-101i ANALOG AUDIO MULTIPLEXER

4:2:2 OUT AUDIO IN

SMPTE 259M-C 4:2:2 video

outputs multiplexed with

analog audio data

2 stereo or

4 monaural

analog audio

inputs

SMPTE 259M-C

4:2:2 video input

IN 4:2:2 LOOP 1 2 3

SMPTE 259M-C

4:2:2 video

loop-through

output

Figure 2.5 600 Ωjumper and potentiometer locations

3 Operation

3.1 AMX-101i User Interface

Figure 3.1 illustrates the AMX-101i's user interface situated at the front end of the

module. The interface components include the following:

§Digital video input status monitoring

§Analog audio input status monitoring

§Test signal selection

§4-character dot matrix display and 4 push-buttons for menu and feature

access

Figure 3.1 AMX-101i user interface

LK4

AMX-101i

(top view)

LK3 LK2 LK1

L2 R2 L1 R1

Potentiometers

SELECT

AMX-101i ANALOG AUDIO MULTIPLEXER

TEST

525 625 ERR UES EDA EDH

INPUT

1 PEAK 2

ESC

AUDIO

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