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Engineer Service   »  Catalog   »  Measurement equipment   »  Leader   »  LT 4440 is a changeover unit that switches to the backup system when failures occur 
LT 4440 is a changeover unit that switches to the backup system when failures occur


The LT 444/LT 4440 is a changeover unit that automatically switches the signal from the primary signal to the backup signal when problems are detected in the primary signal. If a switch occurs from the primary signal to the backup signal, the LT 444 / LT 4440 indicates the channel that caused the problem on the LED front panel.
  • 11 User Configurable Channels
  • Fault Channel 1-11 LED Indicators
  • Selectable Delay Time for Monitor Start
  • Sync Source Primary or Backup
  • Selectable Determination Criteria of the Signal Level
  • Auto Switching on Fault or Manual
  • Multiformat Supports HD-SDI, SD-SDI, AES/EBU Digital Audio, HD Analog Tri-Level Sync, NTSC or PAL Analog Black Burst
  • Fault Indicators and Reset for Primary and Backup
  • Keylock Automatic Operation after 60 seconds

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