Grass Valley 8981FS - Manual (Page 16)

10 8981FS Instruction Manual
8981FS Digital Frame Synchronizer Module
Figure 5. Module Configuration Switches and LEDs
Module Operation Modes
The configuration of the 8981FS establishes:
■ Module Operating Mode—Frame Sync or Fixed Delay mode settings,
■ Output mode when input signal is lost,
■ Input signal Error Detection and Handling (EDH) settings,
■ Manual Freeze and GPI settings
■ Signal processing settings, and
■ Video output timing adjustment.
User settings can be stored in memory and recalled, as can factory default
settings, using the configuration controls. Output timing and video signal
level settings are stored independently for each video line standard. The
module thus can provide different output signal timing and gain values for
each line standard.
Frame Sync Mode
In the Frame Sync Mode, the module will automatically adjust the delay
added to the input video to keep the output signal timing fixed with respect
to a reference analog color black input signal.
The output video timing is adjustable from one field advanced to one field
delayed with respect to the reference video input. The minimum video
delay in this mode is 240 µs (525) or 270 µs (625). If the output signal timing
FUNCTION – function select rotary switch
2ND FUNC – second function LED
SW1 – actuator toggle switch
0719-05
CONF – configuration processing LED
JP5
Place jumper in
local position to
lock out remote
access.
Local
Remote
JP5