Sony RM-280 Operation Manual page 54

e REC TALLY OUTPUT connector (BNC-type)
Outputs the tally signal when the device connected to the
RECORDER (DEVICE 1) connector of this unit is
recording.
f REF IN/OUT (reference video signal input/output)
connector (BNC-type)
Inputs or outputs a reference video signal. This connector can
be used as an input connector or an output connector
depending on the setting of setup menu item 17 (see page 76) .
Note
When the system frequency is set to 29.97 or 25 frames,
the REF IN/OUT connector cannot be used as an output
connector.
54
Locations and Functions of Parts