From Manufacturer
A Time-Code "coincidence detector", the GPI-50 features two separately programmable GPI "trigger" outputs which coincidentally occur when the input Time-Code matches that of previously set GPI In and Out times.
GPI
Use in production and playback systems to trigger Switchers, Mixers, or strobe lights; initiate VCR Recording or Playback.
Adjustable Accuracy
Trim +/- and Set In/Out functions allow times to be adjusted by 11 -Frame, 1 -Second, or 1 -Minute, or set to any arbitrary value.
Two Separate Events
Separate Enable and Disable for each GPI event. For example, the user can program GPI-1 to repeat every hour, GPI-2 repeats every 24 hours.
OSD Readout
"On Screen" display readout shows GPI selected, Enabled/Disabled, Event Duration, In/Out times marked, and relationship of times to present [tape] time.