DNF Controls 4000CL-L Vs.3.0 - Manual (Page 16)

16 4000CL-L, Vs.3.0, 400 Clip Fast Access System, Louth Protocol
SYNC Toggle the softkey to enable/disable reference Video.
RECORD Press Softkey to select single button or 2-button record.
RECORD = [REC] Only.
OR
RECORD = [REC] + [PLAY]
PREROLL Enter Preroll value.
TRANSMIT CUELIST Allows user to transfer Cuelist to another ST300 or a PC.
RECEIVE CUELIST Allows user to receive a Cuelist from another ST300 or a PC.