Error Responses

When the DMP 44 LC is unable to execute the command, it returns an error response to the host. The error response codes and their descriptions are as follows:

Code Description

E10 Invalid command

E11 Invalid preset

E12 Invalid port number

E13 Invalid parameter (number is out of range)

E14 Not valid for this configuration

E17 System timed out

E22 Busy

E25 Device is not present

Command/Response Table Overview

Although the DMP 44 LC uses the same structure for SIS commands, there are two variations. One is the global command structure documented in the “Command/Response Table for Basic SIS Commands” section that follows.

The second set of tables for DSP SIS commands uses the command structure outline beginning with Command/Response Tables for DSP SIS Commands. While using the same structure of basic SIS commands, they differ in how the software addresses the individual processor blocks within the DMP 44 LC.

Command/Response Table for Basic SIS Commands

Symbol definitions

] =

CR/LF (carriage return/line feed) (hex 0D 0A)

}= Carriage return (no line feed, hex 0D)

= Space character

=

Pipe (vertical bar) character

E= Escape key (hex 1B)

== Future capability (not currently available)

X!

=

Version number

Listed to two decimal places (for example, x.xx)

X@

=

Version and Build number

The least significant bits is the build number (for example, x.xx.xxxx)

X#

=

Verbose/Response mode

0 = clear or none

 

 

 

1

= verbose mode (not tagged, not broadcast)

 

 

 

2

= tagged responses for queries (tagged, not broadcast)

 

 

 

3

= verbose mode + tagged responses for queries (tagged and broadcast)

 

 

 

Default = 1 for RS-232 host control

 

 

 

NOTE:

If ‘tagged responses’ is enabled, all read commands will return the

 

 

 

 

 

constant string + the data, like setting the value does, for example,

 

 

 

 

 

command: ECN}

 

 

 

 

 

response: Ipn•X1@]

X$

=

Baud rate

0 = 9600

 

 

 

 

1

= 19200

 

 

 

 

2

= 38400 (default)

 

 

 

3

= 15200

 

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Extron electronic DMP 44 LC manual Command/Response Table Overview, Command/Response Table for Basic SIS Commands

DMP 44 LC specifications

The Extron DMP 44 LC is a powerful digital audio processor designed to cater to a wide range of audio distribution and mixing applications. It combines advanced audio processing capabilities with intuitive controls, making it an ideal solution for classrooms, conference rooms, and other professional audio environments. The DMP 44 LC features four inputs and four outputs, which provide incredible flexibility for any audio setup.

One of the standout features of the DMP 44 LC is its comprehensive DSP capabilities. The device incorporates Extron's renowned DSP technology, which offers extensive signal processing functionality including automatic mixing, gain sharing, EQ, delay, and filtering. These tools allow users to optimize audio performance, ensuring that sound quality is consistent and clear across all speakers and microphones.

In terms of connectivity, the DMP 44 LC offers a versatile array of input and output options. It includes balanced, low-impedance microphone and line level inputs, ensuring compatibility with a wide variety of audio sources. Outputs are also balanced, allowing for seamless integration with professional audio systems. The unit’s input and output configuration can be easily customized, accommodating different audio formats and setups.

The DMP 44 LC utilizes Extron’s patented ProDSP technology, which delivers precise signal processing capabilities without sacrificing audio quality. This technology supports high-resolution audio processing, enabling users to achieve the best sound reproduction possible. Moreover, the device allows for remote control and monitoring via an intuitive web-based interface, making it easy to manage audio settings from any location.

Another key characteristic of the DMP 44 LC is its robust design tailored for professional use. The compact form factor can be easily integrated into various environments, whether mounted in a rack or placed on a shelf. Additionally, its enhanced thermal management and sturdy construction ensure reliability and durability in demanding applications.

The DMP 44 LC embodies the latest advancements in audio technology, making it a reliable choice for professionals seeking high-quality sound management. With its extensive features, the digital audio processor allows for seamless audio mixing and processing, ensuring optimal performance in any audiovisual setup.