Kramer AFM-20DSP-LE Manual de usuario

P/N: 2900-301204 Rev 3 www.kramerAV.com

USER MANUAL

MODELS:

AFM-20DSP, AFM-20DSP-LE,

AFM-20DSP-AEC

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 5 
AFM-20DSP, AFM-20DSP-AEC Front Panels 5 
AFM-20DSP-LE Front Panel 5 
AFM-20DSP/LE/AEC Rear Panels 6 
Installing AFM-20DSP 8 
Connecting the 20-Port Audio Matrix 9 
Connecting AFM-20DSP 9 
Connecting AFM-20DSP-LE 11 
Connecting AFM-20DSP-AEC 12 
Connecting to AFM-20DSP via RS-232 14 
Operating and Controlling AFM-20DSP 15 
Operating via Ethernet 15 
Using Embedded Webpages 18 
Accessing the AFM-20DSP Webpages 19 
Using the Top Status Bar 19 
Viewing the Matrix Area 21 
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 44 
Defining Video Settings 45 
Defining AEC Settings 46 
Auto Mixer 50 
Restarting and Resetting the Device 53 
Restarting the Device 53 
Resetting the Device 53 
Defining Settings 54 
Importing/Exporting Global Settings 54 
Setting Access Security 54 
Defining Communication Settings 55 
Performing Firmware Upgrade 56 
Setting Date and Time 57 
Configuring Device Automation 57 
Viewing Device Information 58 
Upgrading Firmware 59 
Technical Specifications 60 
AFM-20DSP Technical Specifications 60 
AFM-20DSP-LE Technical Specs 61 
AFM-20DSP-AEC Technical Specifications 62 
Default Communication Parameters 64 
Default AFM-20DSP EDID 64 
Default AFM-20DSP-AEC EDID 66 
Protocol 3000 68 
Understanding Protocol 3000 68 
Protocol 3000 Commands 68 
Result and Error Codes 86 

Kramer Electronics Ltd.

AFM-20DSP –Introduction

Introduction

Welcome to Kramer Electronics! Kramer Electronics provides a world of creative and

affordable audio and visual solutions for the AV industry. At Kramer, we go beyond the box

with end-to-end solutions that blend cutting-edge cloud technologies, advanced software, and

dependable hardware.

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.

To check for up-to-date user manuals, application programs, and if firmware upgrades are

available (where applicable) for your device, go to:

•www.kramerav.com/downloads/AFM-20DSP

•www.kramerav.com/downloads/AFM-20DSP-LE

•www.kramerav.com/downloads/AFM-20DSP-AEC

Achieving the Best Performance

•Use only quality connection cables. We recommend Kramer high-performance,

high-resolution cables to avoid interference, deterioration in signal quality because of

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

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

•Avoid interference from nearby electrical appliances that may adversely influence signal

quality.

•Position your Kramer AFM-20DSP, AFM-20DSP-LE, AFM-20DSP-AEC device away

from moisture, excessive sunlight, and dust.

Safety Instructions

Caution:

•This equipment is for inside building use only. It may only be connected to other

equipment that is installed inside a building.

•For products with relay terminals and GPI\O ports, 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 device.

Kramer Electronics Ltd.

AFM-20DSP –Introduction

Warning:

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

•Before installation, disconnect the power and unplug the device from the wall.

•Do not open the device. 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 located on the bottom of the device.

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 https://www.kramerav.com/il/quality/environment.

Overview

Congratulations on purchasing your Kramer device 20-port matrix device.

Each model listed in this User Manual is a high-performance, multi-channel DSP, professional

audio matrix switcher with 20 analog ports that can be configured as inputs or outputs

according to preset I/O configurations. In addition, each device includes a comprehensive and

user-friendly graphic interface that makes configuring every detail of your audio system

intuitive and easy.

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.

AFM-20DSP-LE (Lite Edition), is a “lite” version of AFM-20DSP without Dante, HDMI, AMP,

and S/PDIF.

AFM-20DSP-AEC (Acoustic Echo Cancellation), the device expands the AFM-20DSP

capabilities with the addition of Echo Cancellation, Noise Reduction, Comfort Noise

Generation, and an USB type B port.

The following table shows the features of each device:

Device Name

Maestro

Flex I/O

Dante

HDMI

Amp

S/PDIF

AEC

USB

AFM-20DSP

Yes

AFM-20DSP-LE

Yes

AFM-20DSP-AEC

Yes

Kramer Electronics Ltd.

AFM-20DSP –Introduction

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

AFM-20DSP-LE, and AFM-20DSP-AEC.

Sections referring to Dante, HDMI, S/PDIF, and amplifier ports (in the embedded webpages

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

Unless specified otherwise, AFM-20DSP or “device”, when used by itself throughout this

manual, refers to all three devices.

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 is for AFM-20DSP and AFM-20DSP-AEC only –It 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 –Through a powerful, user-

friendly graphic interface, set volume (gain and attenuation) and DSP for each input,

execute routing, select line in, mic in, phantom power or line out on each port, configure

master level, and more.

•Convenient Control –Through 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 and AFM-20DSP-AEC only –2x60W @ 8Ω and

1x120W @ 70V / 100V power amplifier.

•Easy Installation –19” enclosure for rack mounting a device 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:

Device

Analog

Ports

4x4 Dante

Interface

HDMI

Input

HDMI

Output

S/PDIF

Input

USB

AFM-20DSP

✓

AFM-20DSP-LE

AFM-20DSP-AEC

✓

•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.

▪AFM-20DSP-AEC: use the USB audio as a stereo speaker or operate as an audio

line-in or microphone for an audio recorder application or call conferencing.

Typical Applications

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

•Conference rooms and auditoriums.

•Government, live events, and healthcare.

•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, or via the Ethernet with the use of built-in user-friendly

webpages.

Kramer Electronics Ltd.

AFM-20DSP –Defining AFM-20DSP

Defining AFM-20DSP

This section defines AFM-20DSP/LE/AEC front panels.

AFM-20DSP, AFM-20DSP-AEC Front Panels

Figure 1: AFM-20DSP and AFM-20DSP-AEC Front Panel

AFM-20DSP-LE Front Panel

Figure 2: AFM-20DSP-AEC 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

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

signal. Otherwise remains OFF.

DE-EMBED

Turns 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 turns green.

Kramer Electronics Ltd.

AFM-20DSP –Defining AFM-20DSP

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/LE/AEC Rear Panels

Figure 3: AFM-20DSP Rear Panel

Figure 4: AFM-20DSP-LE Rear Panel

Figure 5: AFM-20DSP-AEC 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.

USB

AFM-20DSP can process the USB audio as a stereo speaker or operate as

an audio line-in or microphone for an audio recorder application or call

conferencing.

When the AFM-20DSP is connected to a computer via USB-C:

•In the computer’s Settings > Manage sound devices > Output devices,

the AFM-20DSP USB shows as “Speaker USB AUDIO CODEC”.

•In a computer recoding application, the audio input settings for AFM-

20DSP show as “Line USB AUDIO CODEC”.

Important:

•The computer’s “Output” device (such as speakers) shows in the AFM-

20DSP embedded webpages as a USB Digital “Input”.

The computer’s “Input” device (such as a microphone) shows in the AFM-

20DSP embedded webpages as a USB Digital “Output”.

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.

Kramer Electronics Ltd.

AFM-20DSP –Defining AFM-20DSP

Feature

Function

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

Power Switch

Turns the device on and off.

Kramer Electronics Ltd.

AFM-20DSP –Installing AFM-20DSP

Installing AFM-20DSP

This section provides instructions for installing AFM-20DSP. Before you start the installation,

make sure 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:

•Install AFM-20DSP before connecting any cables or power.

Warning:

•Ensure that the environment (such as maximum ambient temperature and air flow) is

compatible for the device.

•Avoid uneven mechanical loading.

•Appropriate consideration of equipment nameplate ratings must be used to avoid circuit

overload.

•Reliable earthing of rack-mounted equipment must 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.

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