E
NSEMBLE
Application Note
D E S I G N S
Grass Valley Group Editor Interface
PO Box 993 • Grass Valley, CA 95945 • (530) 478-1830 • FAX (530) 478-1832
Using the TC400D TBC Controller
with
Grass Valley Group Editing Systems
Issue Date: June 1993
Overview
The TC400D TBC Controller may be interfaced to the Grass Valley Group line of edit
controllers. This interface permits the operator to access the memory functions of the
TC400D directly from the editor. TBC settings can be stored in the Edit Decision List,
allowing scenes to be revised without losing the precise TBC values originally used.
This interface requires that the GVG editor be equipped with version 5.0 software (or
subsequent revisions). In addition, the ESP1 protocol must be installed in the edit
controller. Interface to this protocol is a standard feature of the TC400D.
Installation
The 9 pin D edit interface port of the TC400D is connected to the editor's
communications port which has been programmed as the peripheral port (generally Port 0
or Port 6). This procedure is detailed in the GVG editor installation documentation.
The operation of this port on the TC400D is programmed through the Pgm Edit Port
menu. Press MENU FUNC, turn the menu knob until "Pgm Edit Port" appears and then
press ENT.
There are three parameters to be programmed. The first selects the mode of the port.
The port supports many serial interfaces including the GVG ESP1 interface. Upon first
entering the Pgm Edit Port menu one of these choices will appear. If necessary, turn the
menu knob to select the GVG ESP1 interface.
The second parameter, baud rate, is obtained by pressing the RIGHT ARROW button.
Select the baud rate using the knob. 38.4K (also known as 38,400), is the correct setting
for use with the GVG editor.
Finally, press RIGHT ARROW again to set the parity of the edit port. Choose parity
settings with the menu knob. Odd parity is correct for use with the GVG editor.
Once these parameters have been set, they are automatically stored in non-volatile backup
memory. They will be automatically recalled whenever the unit is turned on.
