The MDL2-8N-19" 1U RACK-500-1024 digital audio recorder is a professional solution for multi-channel recording, storage, and analysis of voice data in modern IP and hybrid communication systems. It is designed for recording telephone conversations, dispatch and operational communications, and for building centralized communications monitoring systems at enterprises of various sizes.

This model belongs to the MDL2-8N network series, whose key feature is its support for IP infrastructure. The recorder can be used in both traditional analog systems and modern IP telephony networks, including distributed architectures with remote access to audio data.

The device is designed in a 19" 1U rackmount design, allowing it to be installed in server cabinets and telecommunications racks. This makes it ideal for centralized equipment placement in data centers, communication centers, and control centers.

The recorder supports eight independent recording channels, enabling simultaneous recording of conversations from various sources. Depending on the configuration, the system can operate with:

• analog telephone lines,

• line-level audio signals,

• microphone inputs,

• network audio streams (IP).

Each channel is individually configurable, including recording parameters, storage format, and signal level, allowing for flexible adaptation to specific operational needs.

The recorder is powered by a modern digital signal processor (DSP), ensuring high-quality recording and stable operation under 24/7 load. Support for WAV, MP3, and FLAC formats allows for an optimal balance between audio quality and archive size.

The storage system utilizes a hybrid design:

• a built-in 500 GB hard drive,

• 1024 MB flash memory buffer.

Data is first recorded to the flash buffer and then saved to the HDD. This improves storage reliability, prevents data loss during power outages, and extends the drive's lifespan.

The recorder is equipped with a 10/100 Ethernet interface, enabling integration into the enterprise's local area network. Users can remotely access the archive, search recordings, listen to them, and administer the system via a web interface or specialized software.

The metal housing and passive cooling system ensure high reliability and quiet operation. The absence of fans reduces the risk of failure and allows the recorder to be used in noise-sensitive areas. 

Main Features

• Multi-channel recording of conversations (up to 8 channels)

• Operation in IP environments and enterprise LANs

• Support for analog and network audio sources

• 24/7 standalone operation without a PC

• Automatic archiving of audio data

• Remote access to recordings via Ethernet

• Search and filter recordings by parameters

• Centralized management of the recording system

• Integration into corporate and telecommunications systems

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Main Technical Specifications

Number of recording channels:

8 independent channels

Connected signal types:

• Analog telephone line

• Microphone

• Line-in audio signal

• Network audio streams (IP)

Connector type:

RJ-12 / RJ-45

Audio parameters

• Bit depth: 24 bit

• Sampling frequency: 8 / 16 / 32 kHz

• Individual channel settings

Recording formats

• WAV (PCM)

• MP3

• FLAC

• M2400

Storage System

• Hard Drive: 500 GB

• Flash Buffer: 1024 MB

Interfaces

• Ethernet 10/100

• USB

• RS-232

Design

• 19" Rack

• 1U Height

Power

9–18 VDC

Model Advantages

• 19" 1U rackmount design for server rooms and data centers

• Support for IP telephony and network audio streams

• 8 recording channels in a single device

• Standalone operation without a PC

• Reliable hybrid storage system (HDD + Flash)

• Remote access and management via the network

• High reliability with 24/7 operation

• Silent operation without fans

Application Areas

• IP telephony and corporate communication networks

• Control rooms and situation centers

• Call centers and contact centers

• Telecommunication nodes and server rooms

• Telephone recording systems Conversations

• Security and Monitoring Services

• Industrial Enterprises and Infrastructure

The MDL2-8N-19" 1U RACK-500-1024 Digital Audio Recorder is the optimal solution for building centralized recording systems for communications racks with IP infrastructure support. The device combines reliability, flexible integration, and ease of use, providing effective communication monitoring and long-term storage of audio data.