The MDL2-4N-19" 1U RACK-1T-1024 digital audio recorder is designed for professional multi-channel recording, storage, and analysis of voice data in corporate communications systems and control room systems. The device is used to record telephone conversations, record operator and dispatcher service calls, and document conversations in operational and public address systems.

The recorder is designed in a 19" rackmount design with a height of 1U, allowing it to be installed in standard telecommunications cabinets and server racks. This solution provides convenient placement of equipment in data centers, control rooms, communication hubs, and server rooms where a centralized recording system is required.

The model supports four independent recording channels and can be connected to various audio sources, including analog telephone lines, line-level audio outputs, and microphone systems. Each channel can be individually configured for recording parameters, allowing the device to be adapted for a variety of monitoring and recording tasks. A 1 TB hard drive is used for long-term storage of the audio archive, providing significant recording capacity during 24/7 system operation. Additionally, a 1024 MB flash memory buffer temporarily stores data before writing it to the main drive. This architecture increases storage system reliability and reduces the load on the hard drive.

The recorder is equipped with an Ethernet network interface, allowing integration into a company's local area network. The network allows remote access to the audio archive, conversation searches by various parameters, playback of recordings, and system control.

The durable metal housing provides reliable protection for electronic components and efficient passive cooling. Thanks to its fanless design, the device operates virtually silently and is suitable for 24/7 operation in professional communications systems. 

Main Features

• Multichannel recording of telephone conversations

• Recording audio signals from microphones and line-level sources

• 24/7 autonomous operation without a PC connection

• Automatic archiving of audio recordings

• Remote access to the system via a local network

• Search and playback of recordings by time, channel, and other parameters

• Recording of telephone line service signals

• Centralized placement of equipment in a telecommunications rack

Main Technical Specifications

Number of recording channels:

4 independent channels

Types of connected signals:

• Analog telephone line

• Microphone signal

• Line-level audio signal

Connector type:

RJ-12 / RJ-11

Audio Parameters

• Audio codec bit depth: 24 bit

• Sampling frequency: 8 / 16 / 32 kHz

• Independent recording parameter settings for each channel

Recording Formats

• WAV

• MP3

• FLAC

• Specialized format M2400

Storage System

• Hard Drive: 1 TB

• Flash Buffer: 1024 MB

Connectivity Interfaces

• Ethernet 10/100

• USB

• RS-232

Power

8–18 VDC or 220 VAC network adapter

Design

• Standard 19" Rack-mount

• 1U Height

Model Advantages

• Professional 19" 1U rack-mount design

• Increased audio archive storage capacity of 1 TB

• Standalone operation without a permanent computer connection

• Reliable flash storage

• Remote access to recordings via LAN

• Stable 24/7 operation

Application Areas

• Enterprise control centers

• Telephone recording systems

• Data centers and server rooms

• Contact centers and help desks

• Public address and emergency communication systems

• Security and monitoring services

• Telecommunications Communication Nodes

The MDL2-4N-19" 1U RACK-1T-1024 digital audio recorder is a reliable solution for building centralized call recording systems. Its rack-mount design, increased storage capacity, and network integration enable efficient audio archive management and communications control within a corporate communications infrastructure.