Kramer AFM-20DSP Manuel utilisateur

P/N: 2900-301204 Rev 1 www.kramerAV.com

USER MANUAL

MODELS:

AFM-20DSP,AFM-20DSP-LE

20-Port Audio Matrix

Kramer Electronics Ltd. 
 
AFM-20DSP –Contents 
i 
 
Contents 
Introduction 1 
Getting Started 1 
Overview 2 
Typical Applications 4 
Defining AFM-20DSP and AFM-20DSP-LE 5 
AFM-20DSP and AFM-20DSP-LE Front Panels 5 
AFM-20DSP and AFM-20DSP-LE Rear Panels 6 
Mounting AFM-20DSP / AFM-20DSP-LE 7 
Connecting the 20-Port Audio Matrix 8 
Connecting AFM-20DSP 8 
Connecting AFM-20DSP-LE 10 
Connecting to AFM-20DSP / AFM-20DSP-LE via RS-232 11 
Operating and Controlling AFM-20DSP/AFM-20DSP-LE 12 
Operating via Ethernet 12 
Using Embedded Webpages 15 
Browsing the AFM-20DSP Webpages 16 
Using the Top Status Bar 18 
Viewing the Matrix Area 20 
Processing Audio Signals 22 
Selecting Output Signals to Route to Amplifier Outputs 22 
Linking Analog Inputs and Outputs 23 
Processing a Signal 24 
Routing Inputs to Outputs 37 
Mixing Audio Signals 41 
Defining Audio Settings 45 
Defining Video Settings 46 
Restarting and Resetting the Device 47 
Defining Settings 49 
Importing/Exporting Global Settings 49 
Setting Access Security 49 
Defining Communication Settings 52 
Performing Firmware Upgrade 54 
Setting Date and Time 55 
Configuring Device Automation 56 
Viewing Device Information 58 
Upgrading Firmware 59 
Technical Specifications 60 
AFM-20DSP Technical Specs 60 
AFM-20DSP-LE Technical Specs 61 
Default Communication Parameters 63 
Default EDID 63 
Protocol 3000 65 
Understanding Protocol 3000 65 
Protocol 3000 Commands 66 
Result and Error Codes 83 

Kramer Electronics Ltd.

AFM-20DSP –Introduction

Introduction

Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world

of unique, creative, and affordable solutions to the vast range of problems that confront the

video, audio, presentation, and broadcasting professional on a daily basis. In recent years, we

have redesigned and upgraded most of our line, making the best even better!

Getting Started

We recommend that you:

•Unpack the equipment carefully and save the original box and packaging materials for

possible future shipment.

•Review the contents of this user manual.

Go to www.kramerav.com/downloads/AFM-20DSP or

www.kramerav.com/downloads/AFM-20DSP-LE to check for up-to-date user manuals,

application programs, and to check if firmware upgrades are available (where appropriate).

Achieving the Best Performance

•Use only good quality connection cables (we recommend Kramer high-performance,

high-resolution cables) to avoid interference, deterioration in signal quality due to poor

matching, and elevated noise levels (often associated with low quality cables).

•Do not secure the cables in tight bundles or roll the slack into tight coils.

•Avoid interference from neighboring electrical appliances that may adversely influence

signal quality.

•Position your Kramer AFM-20DSP / AFM-20DSP-LE away from moisture, excessive

sunlight and dust.

Safety Instructions

Caution:

•This equipment is to be used only inside a building. It may only be connected to other

equipment that is installed inside a building.

•For products with relay terminals and GPI\O ports, please refer to the permitted rating

for an external connection, located next to the terminal or in the User Manual.

•There are no operator serviceable parts inside the unit.

Kramer Electronics Ltd.

AFM-20DSP –Introduction

Warning:

•Use only the power cord that is supplied with the unit.

•Disconnect the power and unplug the unit from the wall before installing.

•Do not open the unit. High voltages can cause electrical shock! Servicing by qualified

personnel only.

•To ensure continuous risk protection, replace fuses only according to the rating

specified on the product label which located on the bottom of the unit.

Recycling Kramer Products

The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce

the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected

and recycled. To comply with the WEEE Directive, Kramer Electronics has made

arrangements with the European Advanced Recycling Network (EARN) and will cover any

costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on

arrival at the EARN facility. For details of Kramer’s recycling arrangements in your particular

country go to our recycling pages at www.kramerav.com/support/recycling.

Overview

Congratulations on purchasing your Kramer AFM-20DSP / AFM-20DSP-LE 20-Port Audio

Matrix.

AFM-20DSP is a high-performance, professional audio matrix switcher with 20 analog ports

that can be configured as inputs or outputs according to preset I/O configurations. AFM-

20DSP includes multi-channel DSP, built-in 2x60W@8Ω and 1x120W@70V / 100V power

amplifier, 4x4 Dante interface, HDMI™embedding and de-embedding, and S/PDIF. The

comprehensive and user-friendly graphic interface makes configuring every detail of your

audio system intuitive and easy.

AFM-20DSP-LE is a high-performance, professional audio matrix switcher with 20 analog

ports that can be configured as inputs or outputs according to preset I/O configurations.

AFM-20DSP-LE includes multi-channel DSP and a comprehensive and user-friendly graphic

interface that makes configuring every detail of your audio system intuitive and easy.

The following table shows the functionality of each device:

Device Name

Maestro

Flex I/O

Dante

HDMI

Amp

S/PDIF

AFM-20DSP

Yes

AFM-20DSP-LE

Yes

Most of the information included in this user manual is relevant to both AFM-20DSP and to

AFM-20DSP-LE. Sections referring to Dante, HDMI, S/PDIF and amplifier ports (in the

embedded web pages and Protocol 3000 sections) are not relevant to AFM-20DSP-LE.

Unless specified otherwise, AFM-20DSP is used throughout this user manual to refer to both

devices.

Kramer Electronics Ltd.

AFM-20DSP –Introduction

AFM-20DSP and AFM-20DSP-LE provide exceptional quality, advanced and user-friendly

operation, and flexible control.

Exceptional Quality

•High-Performance, Professional Audio Matrix Switcher –Professional, studio grade

signal conversion technology, including the latest generation 32-bit advanced Digital

Analog Converter architecture to achieve excellent dynamic performance and improved

tolerance to clock jitter. Maintains the quality of the original audio signal with selectable

sampling rates up to 96kHz. Flat frequency response, unmatched sonic performance,

excellent signal to noise ratio, and extraordinarily low distortion levels.

•Multi-Channel Processing –Provides DSP (Digital Sound Processing) that enables

simultaneous processing of all input and output signals.

•Programmable –Supports up to 10 global presets per I/O configuration plus 10 mixer

snapshot presets.

•Audio De-embedding for AFM-20DSP only –De-embeds the audio signal from the HDMI

input for routing to any of the outputs or for routing to the loop output.

Advanced and User-friendly Operation

•Intuitive and Comprehensive Configuration and Control –Via a powerful, user-friendly

graphic interface, set volume (gain and attenuation) and DSP per input, execute routing,

select line in, mic in, phantom power or line out on each port, configure master level and

more.

•Convenient Control –Via the user-friendly embedded webpages and RS-232 serial

controller, control signal routing, independent volume.

•Easy, Cost-Effective Maintenance –LED indicators for main power, line in/out, mic in,

clipping (power amp, Dante sync, and HDMI for AFM-20DSP only), enable easy local

maintenance and troubleshooting. Local firmware upgrade via the USB type-A port

ensures lasting, field-proven deployment.

•Built-in Power Amplifier for AFM-20DSP only –2x60W @ 8Ω and 1x120W @ 70V /

100V power amplifier.

•Easy Installation –19” enclosure for rack mounting a unit in a 1U rack space with

included rack ears and universal 100-240V AC power connection.

•Firmware Upgrade –Ethernet-based, via software upgrade tool.

Kramer Electronics Ltd.

AFM-20DSP –Introduction

Flexible Connectivity

•Wide Range of I/O Formats:

▪AFM-20DSP: 20 analog ports, 4x4 Dante interface, HDMI input and output, and

S/PDIF input and output.

▪AFM-20DSP-LE: 20 analog ports.

•Maximum Flexibility:

▪AFM-20DSP: use the default 12x8 I/O matrix configuration or select one of the preset

analog I/O configurations.

Route any input to any output, even between different formats (for example, route an

analog input to an S/PDIF output); control volume and DSP per port; route any of the

ports to the power amplifier.

▪AFM-20DSP-LE: use the default 12 x8 I/O matrix configuration or select one of the

preset analog I/O configurations.

Typical Applications

AFM-20DSP is ideal for the following typical applications:

•Conference rooms and auditoriums.

•Houses of worship.

•Large corporate connectivity systems.

Controlling your AFM-20DSP

Control your AFM-20DSP by RS-232 serial commands transmitted by a touch screen system,

PC, or other serial controller and via the Ethernet using built-in user-friendly webpages.

Kramer Electronics Ltd.

AFM-20DSP –Defining AFM-20DSP and AFM-20DSP-LE

Defining AFM-20DSP and

AFM-20DSP-LE

This section defines AFM-20DSP and AFM-20DSP-LE.

AFM-20DSP and AFM-20DSP-LE Front Panels

Figure 1: AFM-20DSP Front Panel

Figure 2: AFM-20DSP-LE Front Panel

Feature

Function

STATUS LED

Indicates system status:

•Almost 3 cycles of

red/blue/off/green LEDs

flashing in sequence for about

30 seconds when system is

starting up, and the application

has not been launched yet.

•Flashing green when application

is initializing.

•Green when system is ready for

operation.

PORTS LEDs

(1 to 20)

Indicate port status:

•Green when an input signal is

present, and the port is defined

as line in.

•White when defined as line out.

•Blue when defined as mic in.

•Red when in clipping state.

•Orange when in limiting state.

•Off when there is no signal on the

input.

IN OUT DANTE™

LEDs (1 to 4)

Indicate Dante signal status:

•Green when a signal is

detected.

•Red when clipping occurs.

•Orange when in Limiting state.

•Off when no signal is detected.

HDMI™

LEDs

EMBED

Lights green when an analog audio signal is associated with the HDMI OUT

signal. Otherwise remains OFF.

DE-EMBED

Lights green when the HDMI IN audio signal is present. Otherwise remains

OFF.

IN OUT S/PDIF LEDs

Indicate S/PDIF status:

•Green when a signal is detected.

•Off when no signal is detected.

If a signal is detected only on one channel, either left only or right only,

the status LED lights green.

Kramer Electronics Ltd.

AFM-20DSP –Defining AFM-20DSP and AFM-20DSP-LE

Feature

Function

CH 1(L)/CH 2(R)

AMPLIFIER LEDs

Indicate amplifier signal status:

•Green when a signal is detected.

•Off when no signal is detected.

In the webpage, Ch1 and CH2 are referred to as AMP 1 and AMP 2,

respectively.

AFM-20DSP and AFM-20DSP-LE Rear Panels

Figure 3: AFM-20DSP Rear Panel

Figure 4: AFM-20DSP-LE Rear Panel

Feature

Function

PORTS 3-pin

Terminal Block

Connectors (1 to 20)

Interchangeable balanced mono audio ports. Connect to an audio source or

acceptor in one of 7 selectable I/O configurations: 16x4, 14x6, 12x8, 10x10,

8x12, 6x14, 4x16

Each port can be defined as line in, mic in, mic + 48V in, or line out.

HDMI™ IN Connector

Connect to an HDMI source for de-embedding the audio signal (the video

signal is passed through to the output).

HDMI™ OUT

Connector

Connect to an HDMI acceptor for embedding an audio signal from the matrix.

S/PDIF OUT RCA

Connector

Connect to a digital stereo audio acceptor.

S/PDIF IN RCA

Connector

Connect to a digital stereo audio source.

SPEAKER OUT

Outputs two selected audio signals in two channels.

For Lo-Z: connect stereo output to Lo-Z speakers: L+ and L- to the left

speaker; R+R- to the right speaker.

For Hi-Z (70V or 100V): connect Hi-Z and COM to mono Hi-Z speakers.

Dante PoE RJ-45 Port

Connect to Dante audio via the network. Provides 4 Tx channels and 4 Rx

channels.

By default, DHCP is enabled.

RS-232 3-pin Terminal

Block Connector

Connect to a PC/serial controller to control the device.

ETHERNET RJ-45

Connector

Connect to a PC via a LAN to control the device and for firmware upgrade.

Mini USB Connector

Connect to your PC to control the device.

RESET Recessed

Button

Press and hold for about 5 seconds to reset the configuration to its default

parameters.

Mains Power

Connector and Fuse

Plug in the power cord.

POWER Illuminated

Power Switch

Turn the device on and off.

Kramer Electronics Ltd.

AFM-20DSP –Mounting AFM-20DSP / AFM-20DSP-LE

Mounting AFM-20DSP /

AFM-20DSP-LE

This section provides instructions for mounting AFM-20DSP / AFM-20DSP-LE. Before

installing, verify that the environment is within the recommended range:

•Operation temperature –0to 40C (32 to 104F).

•Storage temperature –-40to +70C (-40 to +158F).

•Humidity –10% to 90%, RHL non-condensing.

Caution:

•Mount AFM-20DSP / AFM-20DSP-LE before connecting any cables or power.

Warning:

•Ensure that the environment (e.g., maximum ambient temperature & air flow) is

compatible for the device.

•Avoid uneven mechanical loading.

•Appropriate consideration of equipment nameplate ratings should be used for avoiding

overloading of the circuits.

•Reliable earthing of rack-mounted equipment should be maintained.

To mount the AFM-20DSP in a rack

Attach both rack ears by removing the screws from each side of

the machine and replacing those screws through the rack ears or

place the machine on a table.

For more information go to www.kramerav.com/downloads/AFM-20DSP

Kramer Electronics Ltd.

AFM-20DSP –Connecting the 20-Port Audio Matrix

Connecting the 20-Port Audio

Matrix

This section describes how to connect the AFM-20DSP and AFM-20DSP-LE devices.

Connecting AFM-20DSP

Always switch off the power to each device before connecting it to your AFM-20DSP. After

connecting your AFM-20DSP, connect its power and then switch on the power to each

device.

Figure 5: Connecting to the AFM-20DSP Rear Panel

To connect AFM-20DSP as illustrated in the example in Figure 5:

1. Connect the following audio sources to the PORT balanced mono 3-pin terminal block

connectors (port I/O is set to 12x8 in this example):

▪Microphones to ports 1 to 9.

▪The audio output of the Kramer VP-444 scaler to port 10.

▪An MP3 player to ports 11 and 12.

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