AOT-1236D Broadcast grade Multichannel Audio Isolation Distributor

Used in conjunction with the AOT-2010S multi-channel audio switcher, it is applied for dual machine hot backup of core processing equipment in audio systems (such as mixing consoles, audio matrices, etc.). When the main system fails, it can achieve multi-channel one click switching function in emergency situations, automatically connect to the backup control system, and ensure the stability of the entire audio system. Sound system engineering suitable for important places such as radio and television studios, command centers, combat command rooms, government executive conference rooms, etc

Product Introduction

>>AOT-1236D broadcast grade multi-channel audio signal isolation distributor uses an audio isolation coupling transformer for signal isolation distribution, with a unique phantom power supply channel design that can transmit high-definition audio level signals over long distances.

>>Widely used in audio system engineering in important places such as radio and television studios, command centers, etc. It can simultaneously divide a single input audio signal into three groups and provide them to the core processing equipment (digital audio matrix, mixing console, etc.) for dual machine hot backup. When a single core equipment fails, the backup equipment can continuously output audio signals to ensure the normal use of the entire system. At the same time, it can effectively reduce the RF and induced noise interference of on-site thyristor lighting controllers, radio waves, and AC power supplies, and improve the common mode suppression efficiency in balanced audio transmission.

>>12 sets of input channels, each with three output interfaces. One of them is a direct output interface, and the other two are isolated output interfaces. Each output interface can provide phantom power channels to the input interface, and the output connected mixing console (or digital audio matrix) can simultaneously turn on 48V power to supply phantom power to the input interface of the audio distributor. The output of Group A and B is equipped with a phantom power on/off switch (the audio system should be in a silent state during operation) and a ground suspension switch, which can help solve the current noise caused by the ground circuit.

Detail diagram of front panel interface



Detail diagram of rear panel interface

Product Features

*Adopting audio isolation coupling distribution transformer, famous NEURITK audio socket, gold-plated plug to ensure high-quality use effect;

*Equipped with phantom power direct technology, each output can provide phantom power for the operation of the condenser microphone. The front panel has a+48V phantom power indicator light, and the working status is clear at a glance;

*12 channel MIC/LINE input, 3 sets * 12 channel MIC/LINE outputs, with 1 set (front panel) directly outputting and 2 sets (rear panel A/B) outputting with noise isolation function;

*The output ground wire and phantom power switch can be independently set and selected;

*Highly integrated, sturdy and durable all metal chassis, standard 2U/19 inch rack mount, with the option to install in front or back panel mode;

Schematic diagram of front and rear panel switch functions and mode selection

Product Application Diagram

Product Technical Specifications

Audio input channel	12 balanced MIC/LINE inputs
Input impedance range	600Ω~2000Ω
Maximum input level	+26dB
Audio output channel	36 MIC/LINE balanced outputs (3 groups * 12 channels), 24 channels with isolated noise reduction function
Output impedance	600Ω
Input/output interface	XLR balanced interface
frequency response	20Hz~20kHz，+/ -0.2dB@20Hz ~20kHz full frequency band measurement
Total Harmonic Distortion	<0.15% @ 20Hz~20kHz full band measurement
insulation resistance	DC 1000V, 100M Ω
Isolation voltage	0V~1500V， Communication 50Hz/60Hz
Dimensions (Depth x Height x Width)	150x92x436mm (with rack accessory width: 482mm)