Description:
The BLANK command sets the state of the video output whenever a unit's transport is idle or is
in transition.
Form:
Command Handler: DCMD
BLANK|BLK|BL [ARGUMENT]
Argument List:
"*" indicates that option is not currently implemented
"**" Please refer to notes section for more information
Terse Verbose Description
0** NOVIDEO No video, total absence of video signal and sync when transport is
idle, black video during spot transitions
1 BLACK Black video signal when transport is idle or during
spot transitions.
2 HOLD Holds the last frame/field of the encoded file when
transport is idle.
3* WHITE White video signal when transport is idle.
4* YELLOW Yellow video signal when transport is idle.
5* CYAN Cyan video signal when transport is idle.
6* GREEN Green video signal when transport is idle.
7* MAGENTA Magenta video signal when transport is idle.
8* RED Red video signal when transport is idle.
9* BLUE Blue video signal when transport is idle.
10* COLORBARS Color bars generated upon transport idle.
11* SEAMLESS Unit will move from file to file without introducing blank frames.
Seamless must be set from terminal. Not supported in the GUI.
none * RESET Same as black, except force a reset during transitions.
none * YUV [VALUE] Normal output when MPEG decoding, Custom YUV color video signal
when transport is idle.
Response:
MODIFY BLANK RESPONSE
Verbose- "OK\r\n" to acknowledge receipt of command, or
"ERROR- [Description]\r\n" if error, ending command
Terse- "0\r\n" to acknowledge receipt of command, or
"[NON-ZERO NUMERIC VALUE]\r\n" if error, ending command
"\r\n" concludes modify responses (empty line)
DISPLAY BLANK RESPONSE
Verbose- "OK\r\n" to acknowledge receipt of command, followed by
"BLANK= [STANDARD]\r\n", or
"ERROR- [Description]\r\n" if error, ending command
Terse- "0\r\n" to acknowledge receipt of command, followed by
"[TERSE NUMERIC VALUE]\r\n", or
"[NON-ZERO NUMERIC VALUE]\r\n" if error, ending command
"\r\n" concludes display responses (empty line)
Examples:
Verbose command to retrieve current setting:
*.DCMD BLANK <enter>
Response is: OK\r\n
BLANK= NOVIDEO\r\n
Terse command to retrieve current setting:
*.DCMD BL <enter>
Response is: 0\r\n
0\r\n
Verbose command to change setting:
*.DCMD BLANK BLUE <enter>
Response is: OK\r\n
Terse command to change setting:
*.DCMD BL 9 <enter>
Response is: 0\r\n
Notes:
Support has been added for NOVIDEO for systems with SDI connectors. NOVIDEO
also works for any system using the composite connection for PAL and NTSC.
The NOVIDEO option for DVI and HDMI connectors is not supported due to
stability issues. When the NOVIDEO option is set, the DVI and HDMI connectors
will use the BLACK option.