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12 Channels Analog Audio Switcher

Model:ZHC318-1201S

Specifications:professional

Product introduction:12 channels of stereo audio signal input, select 1 channel of stereo audio signal for output. It can be selected through the local keyboard or remote control, or intelligently switch the output according to the presence or absence of the input signal. The

ZHC318-1201S Analog Audio Switcher

1. Overview

ZHC318-1201S analog audio signal switcher is a device in which twelve channels of analog stereo input is digitally controlled to select one stereo output. The system performs real-time dynamic monitoring of the left and right input audio signals of each channel. This device is mainly used in the audio source monitoring control of the radio and television industry, and has the advantages of large audio dynamic range and accurate input level detection.

The ZHC318-1201S analog audio signal switcher is manually controlled to switch, and the output can be set to four modes: all prohibited, left channel, right channel and left and right stereo. The device can set the channel and output mode locally or remotely.

The ZHC318-1201S analog audio signal switcher has on-site audio monitoring holes to realize real-time monitoring of local audio. At the same time, it has the function of remote communication. Through the serial port, it can continuously read the left and right audio level value of each channel and the working status of the device and control channel switching at the same time.

 

2. Technical Details

2.1 Technical Specifications

1. Audio input level                   -30dBu +15dBu

2. Audio input impedance             600Ω

3. Audio output level                  -30dBu ~ +15dBu

4. Audio output impedance            600Ω

5. Audio gain                          0dB

6. Channel separation                 ≥ 70dB

7. Stereo separation                   ≥ 70dB

8. Stereo left and right level difference ≤ 0.1dB

9. Channel gain difference             ≤ 0.3dB

10. Signal-to-noise ratio               ≥ 80dB

11. Distortion                          ≤ 0.07%

12. Frequency response                ≤ 0.1dB

13. Power supply voltage               AC90VAC180V 47Hz63Hz

AC180VAC260V 47Hz63Hz

Note: The test frequency range of all the above indicators is 20Hz20KHz.

 

2.2 Physical Specifications

1. Chassis standard                    2U (19 inches)

2. Chassis size                         482.6mm×88.1mm×445mm

3. Whole machine weight              20Kg

4. Operating environment temperature 0 +40

5. Operating relative humidity          95%

6. Operating altitude                    ≤4500m

 


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