ZHC348-2011SZ Intelligent Audio Switcher

Overview

ZHC348-2011SZ Intelligent Switcher is a professional broadcast grade audio switching device that supports 2 analog balanced stereo audio inputs (supports music), with 1 digital AES audio output and 1 balanced analog audio output after switching. It has two switching modes: manual and automatic. In manual mode, the desired audio channel can be easily selected through buttons; Intelligent judgment of channel audio status and switching in automatic mode. This product is an excellent audio switching device.

Features

l Adopting high-speed MCU processor control, reliable performance

l Color display screen dynamically displays audio level and device status

l Customize switching time and switching threshold

l Convenient and efficient network (TCP/IP)/RS232 control interface

l Reliable power-off main circuit direct function

l Adopting dual power redundancy design to improve equipment stability

l Convenient monitoring function

Diagram 

Technical Specifications

1. Analog audio input level -30dBu~+15dBu

2. Simulate audio input impedance of 600 Ω

3. Analog audio output level -30dBu~+15dBu

4. Simulate audio output impedance of 600 Ω

5. Digital audio output impedance 110 Ω

6. Operating frequency 20Hz~20KHz

7. Audio signal-to-noise ratio ≥ 90dB

8. Audio frequency response ≤± 0.01dB

9. Audio distortion ≤ 0.01%

10. Audio stereo separation degree ≥ 90dB

11. Audio level difference between left and right ≤ 0.01dB

12. Correspondence between Analog and Digital Levels: 0dBu Analog Audio Signal corresponds to -24dBFS Digital Audio Signal

13. Power supply voltage AC100V~AC265V/47Hz~63Hz (dual channel)

Physical Specifications

1. Chassis standard 19 inches

2. Chassis size 1U (440mm × 300mm × 44mm)

3. The total weight of the machine is 2.2Kg

4. Operating environment temperature -10 ℃~+50 ℃

5. Relative humidity  <95%

6. Altitude  <4500m