Advanced Digitial ADV-2000EC MPEG-2 video encoder.
ADV-2000EC is a real-time single program MPEG-2 encoder.
It provides both analog and digital audio/video inputs like
CVBS, S-Video and SDI.
https://www.advanceddigital.com/products/video_encoders/mpeg-2-encoders/adv-2000ec_profes
https://www.dvbgear.com/video_encoders_decoders/adv-2000ec_professional_mpeg2_sd_encoder/