Grass Valley DAP-1781 User Manual
Page 62

GUIDE TO INSTALLATION AND OPERATION
62 | DAP-1781
Miscellaneous
Tone generator
1 kHz sine wave interrupted on left channel (250 ms / 3 s)
EBU R49
Signal presence threshold
from –72 to –48 dBFS (6 dB steps)
No signal delay
from 0 to 255 s (1 s steps)
Fixed delay
0 to 2.4 s
Steps: ms (coarse) & sample (fine)
Tracking delay
0 to 8 video frames
GPI inputs (via A-BUS only)
The GPI information is transmitted to the DAP-1781 at the
switch line. The User Preset Load command needs less
than a frame (about 28 ms) to be completed.
Note that this time will increase when a Dolby module is
installed: about a frame for each modified parameter inside
the Dolby module.
Metadata
Input
Level
RS-485
Format
asynchronous serial format
Data Rate
115.2 kbps.
Impedance
> 12 kOhm
Output
Level
RS-485
Format
asynchronous serial format
Data Rate
115.2 kbps.
Impedance
< 70 Ohm
Power
DAP-1781-xxx-DRP:
< 2.5 W
< 4.1 W with an optional decoder module
< 4.4 W with an optional encoder module
< 3.1 W with an optional upMAX
TM
module
DAP-1781-xxx-SRP:
< 2.0 W
< 3.5 W with an optional decoder module
< 3.7 W with an optional encoder module
< 2.6 W with an optional upMAX
TM
module