The 7070 IFL consists of an optical transmitter (7070T) that receives signals from LNBīs or modulators and transmits them to an optical receiver (7070R) via singlemode fiber.
This system includes:
4x 7070T transmitters
4x 7070R receivers
2x 7000M 3U chassis/power supply
http://broadcastsupport.eu/upload_dir/docs/Foxcom-7070-IFL.pdf