1. Description 

■ This switcher enables 8 audio/video signals to be selected and sent to 4 
    independent display devices for routing and monitoring in A/V conference hall, 
    broadcasting station, cable TV production etc.  

■ It could be Four separate selectors as there are 4 outputs (out1, out2, out3, out4).
 
■ A specific selector is available for each output.
  
■ Four separate outputs provide Matrix function by sending signals to each device
    simultaneously.
 
■ It can be changed a specific signals by selecting the output number and
    pressing the input select button. As operate the buttons from front panel, both
    input/output signal lights will be turned on.
  
■ A rear panel RS-232C control port provides connection of PC to an easy control
    system.  

  
2. Panel Drawing

3. Specification 

■ Audio Part
  - Input/Output number : 8 x 4
  - Input type : Unbalanced stereo, 47Kohm
  - Output type : Unbalanced stereo, 600ohm
  - Input/Output connector : RCA
  - Max level : 13dBm
  - Frequency response : ±0.1dB(20Hz ~ 20kHz)
  - Crosstalk : below 80dB
  - S/N : below 80dB (20Hz ~ 20kHz) 

■ Video Part
  - Input/Output number : 8 x 4
  - Input/Output type : Composite video 1Vp-p, 75ohm
  - Input/Output connector : RCA
  - Frequency response : ±0.3dB(to 107MHz)
  - Differential phase error : 0.5°at 3.58 & 5MHz
  - Differential gain error : 0.5% at 3.58 & 5MHz
  - Crosstalk : below 55dB
  - S/N Ratio : Below 65dB

■ Remote Control Part
  - Serial control : 1 RS-232, d-sub 9pin connect

■ Case & Power Part
  - Power source : AC 110/220V 60Hz ±10%
  - Temperature : 0℃ ~ 40℃ 
  - Power consumption : below 6Watt  
  - Type : 19” Rack type
  - Dimensions : 482(W) * 44.5(H) * 300(D) mm