TZM 423

TZM 423 is a 4 inputs and 2 indipendent outputs matrix suited for routing VGA/XGA signals with combined audio. TZM 423 can manage YUV, RGBS or RGBHsVs signals as well. May be very useful when, driving a main output, it’s necessary to keep a second source under monitoring control or when it’s needed to drive 2 destinations by 2 different signals

  • Two independent buses
  • 250 MHz Video bandwidth
  • Integrated keyboard
  • Remote selection by dry contacts
  • Control by RS 232
  • Mute function for each bus
  • Suitable for YUV/RGBS/RGBHsVs

PC software & protocol


Input VGA/XGA or RGB/YUV analog 700 mVpp with HDD 15 p. m.
Input coupling DC
Input impedance 75 ohm
Crosstalk (worst case) 50 dB at 40 MHz
Bandwidth 250 MHz
Outputs two, independent with HDD 15 p. f.
Synchronism H+V separated, TTL level, high Z
Other signals ST, SDA, SCL TTL level, high Z

Input coupling AC, unbalanced
Input impedance 47 Kohm
Input level +11 dB max
Gain -0.5 dB
Frequency response -1 dB from 40 Hz to 20 KHz
Crosstalk 60 dB at 5 KHz
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Cape Town, South Africa