KRAMER AFM-20DSP-AEC 20-Port Audio Matrix User Guide

: June 5, 2024
: Kramer

Table of Contents

Step 1: Check what’s in the box
Step 2: Get to know your AFM-20DSP-AEC
Step 3: Mount AFM-20DSP-AEC
Step 4: Connect inputs and outputs
Step 5: Connect the power
Step 6: Operate AFM-20DSP-AEC
Read User Manual Online (PDF format)
Download This Manual (PDF format)

AFM-20DSP-AEC Quick Start Guide

https://de2gu.app.goo.gl/eibH3igKhyjKxEjy5

This guide helps you install and use your AFM-20DSP-AEC for the first time.
Go to www.kramerav.com/downloads/AFM-20DSP- AEC to download the latest user manual and check if firmware upgrades are available.

Step 1: Check what’s in the box

AFM-20DSP-AEC 20 Port Audio Matrix
1 Power cord
1 Set of rack ears
4 Rubber feet
1 Quick Start guide

Step 2: Get to know your AFM-20DSP-AEC

KRAMER AFM 20DSP AEC 20 Port Audio Matrix - fig1

#	Feature	Function
1	STATUS LED	Indicates the system’s status:

•3 cycles of red/blue/off/green LEDs
• Flashes green when the application starts.
that flash in sequence for 30 seconds
• Stays green when system is ready for use.
when the system starts up, and the
application has not been launched.
2| PORTS LEDs (1 to 20)| Indicate the port’s status:
•Green when an input signal is
• Red when in clipping state.
detected, and the port is defined as
• Yellow when in limiting state. line in.
•Off when there is no signal on the input.
•White when defined as line out.
•Blue when defined as mic in.
3| IN OUT Dante TM LEDs (1 to 4)| Indicate the Dante’s signal status:
•Green when a signal is detected.
• Yellow when in limiting state.
•Red when clipping occurs.
• Off when no signal is detected.
4| HDMI LEDs| EMBED| Turns green when an analog audio signal is associated with the HDMI OUT signal. Otherwise, it stays OFF.
DE-EMBED| Turns green when the HDMI IN audio signal is detected. Otherwise, it stays OFF.
5| IN OUT USB or S/PDIF LEDs| Indicate the USB or S/PDIF’s status:
•Green when a signal is detected.
• Off when no signal is detected.
If a signal is detected on one channel, either left only or right only, the status LED is green.
6| CH 1(L)/CH 2(R) AMPLIFIER LEDs| Indicate the amplifier’s signal status:
•Green when a signal is detected.
• Off when no signal is detected.
On the web page, CH1 and CH2 are referred to as AMP 1 and AMP 2, respectively.

KRAMER AFM 20DSP AEC 20 Port Audio Matrix - fig2

#	Feature	Function
7	PORTS 3-pin Terminal Block Connectors (1 to 20)	Interchangeable balanced

mono-audio ports. Connect to an audio source or acceptor in 1 of 8 selectable I/O configurations: 16×4, 14×6, 12×8, 12×8 AEC ,10×10, 8×12, 6×14, 4×16. Define each port as line in, mic in, mic + 48V in, or line out.
8| USB| AFM-20DSP-AEC 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-AEC is connected to a computer via USB-B:
•In the computer’s Settings > Manage sound devices > Output devices, the AFM20DSP-AEC USB shows as “Speaker USB AUDIO CODEC”.
•In a computer recoding application, the audio input settings for AFM-20DSP- AEC show as ‘tine USB AUDIO CODEC”.
Important:
•The computer’s “Output” device (such as speakers) shows in the AFM-20DSP-AEC embedded web pages as a USB Digital “Input”.
•The computer’s “Input” device (such as a microphone) shows in the AFM- 20DSPAEC embedded web pages as a USB Digital “Output”.
9| HDMI OUT Connector| Connect to an HDMI acceptor to embed an audio signal from the matrix.
10| HDMI IN Connector| Connect to an HDMI source to de-embed the audio signal (the video signal is passed through to the output).
11| S/PDIF OUT RCA Connector| Connect to a digital stereo audio acceptor.
12| S/PDIF IN RCA Connector| Connect to a digital stereo audio source.
13| 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.
14| Dante PoE RJ-45 Port| Connect to Dante audio through the network. Provides 4 Tx channels and 4 Rx channels. By default, DHCP is enabled.
15| RS-232 3-pin Terminal Block Connector| Connect to a PC/serial controller to control the device.
16| ETHERNET RJ-45 Connector| Connect to a PC via a LAN to control the device and for firmware upgrades.
17| Micro USB PROG. PORT| Connect to your PC to control the device.
18| RESET Recessed Button| Press and hold for 5 seconds, to reset the configuration to its default parameters.
19| Mains Power Connector and Fuse| Plug in for the power cord.
20| POWER Illuminated Power Switch| Turns the device on and off.

Step 3: Mount AFM-20DSP-AEC

To rack mount the machine, attach both rack ears (remove the screws from each side of the machine and replace screws through the rack ears) or place the machine on a table.

Ensure that the environment (e.g., maximum ambient temperature & airflow) is compatible for the device.
Avoid uneven mechanical loading.
Appropriate consideration of equipment nameplate ratings should be used for avoiding the overloading of the circuits.
Reliable earthing of rack-mounted equipment should be maintained.

Step 4: Connect inputs and outputs

Always turn off the power on each device before it is connected to the AFM- 20DSP-AEC device.

For optimum range and performance, use the recommended Kramer cables available at
www.kramerav.com/product/AFM-20DSP-AEC. The use of third-party cables may cause damage!

Step 5: Connect the power

Connect the power cord to AFM-20DSP-AEC and plug it into the mains electricity.
Safety Instructions (See www.kramerav.com for updated safety information)
Caution:

There are no operator serviceable parts inside the unit.

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 is located on the bottom of the unit.