06/03/2026
The LT4448 is a changeover unit that automatically switchesthe signal from theprimary signal to the backup signal when problems are detected in the primary signal. A single LT4448 has 11 BNC channels and 3 LTC channels. These channels canreceive SDI,NTSC/PAL black burst, HD tri‐level sync, AES/EBU digital audio, worl-clock signals, and LTC signals. SDI signals are switched with relays; all other signals are switched with electronic switches. It has redutant power supplies. Alarms are generated when error occurs.
The LT4670 is a 1U full rack size synchronous signal generator that outputs PTP, GNSS, (4K/HD) IP, 4K 12G, (3G/HD/SD) SDI, analog synchronous signals, AES/EBU, audio word clock and LTC synchronized to analog video sync signals.