
DSC HD-3G A • Setup Guide (Continued)
NOTE: X# = Input video format: 0= no signal; 1= HDMI, 2= DVI, 3= invalid signal (up to 30 Hz);
4 = 3G-SDI 1080p (@ 50, 59.94, and 60 Hz), 2K; 5= unknown.
X2) = Output scaler rate: 0= automatic (match output rate), 1= custom rate 1, 2= custom rate 2, 3= custom rate 3,
9 = match input (see the SIS variables table on page 3 for more rate variables).
X2* = Output sync timeout duration in seconds (1-500 in 1-second increments): 501 = never (default), 0= immediate timeout
X4) = Screen saver mode: 1= black (default), 2= blue
X4@ = Video mute: 0= off (unmuted), 1= on (muted to black screen), 2= on (all output sync and video muted)
X6@ = Power save setting: 0= full power (default), 1= low power state
X6# = Screen saver status: 0= active, timer not running; 1= no active input, timer running, output sync active;
2= No active input, timer expired
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Basic SIS Commands
The DSC HD-3G A can be configured with specific SIS commands via RS-232 or USB connection. This table lists a selection
of basic commands (all responses to View commands are shown in verbose mode with tagged responses). For a full list of SIS
commands and variables see the DSC 3G-HD A and DSC HD-3G A User Guide, online at www.extron.com.
Command ASCII Command
(Host to Scaler)
Response
(Scaler to Host) Additional Description
View input video format 1*\Vtyp 1*X# ]View detected input video format X#.
Audio Input Format — select between analog (5-pole captive screw connector) and digital (embedded in HDMI input) audio sources.
Set to none EI1*0AFMT }Afmt I1*0]Mute all audio for the input.
Set to analog EI1*1AFMT }Afmt I1*1]Select analog audio for the input.
Set to LPCM-2CH digital EI1*2AFMT }Afmt I1*2]Select LPCM 2-channel digital audio for the input (default).
Set to Multi-CH digital EI1*3 AFMT }Afmt I1*3]Select multi-channel digital audio for the input.
Execute Auto-Image AImg ]Perform an Auto-Image on the current input.
Output Configuration
Set output scaler rate EX2) RATE }Rate X2) ]Select output resolution and refresh rate X2) (see the
output SIS variables table on page 3).
View output rate ERATE }Rate X2) ]Show the current output rate for the DSC HD-3G A.
Video Mute (Defaults to unmuted after a power cycle.)
Mute video to black 1*1B Vmt 1 *1]Mute the video and display a black screen.
Mute video and output sync 1*2B Vmt 1 *2]Mute all TMDS signals on the SDI video output.
Unmute video 1*0B Vmt 1 *0]Unmute the output video.
View video mute status 1B Vmt 1 *X4@ ]View output video mute status (X4@).
Screen Saver Mode (Active when no signal is detected on the input)
Set screen saver mode EMX4) SSAV }Ssav MX4) ]Set the screen saver mode to X4) (default = 1 = black).
View screen saver mode EMSSAV }Ssav MX4) ]View current screen saver mode X4).
Set sync timeout duration ETX2* SSAV }Ssav TX2* ]Set the period before sync timeout to X2* seconds
(default = 501 = never).
View sync timeout duration ETSSAV }Ssav TX2* ]View the amount of time X2* before sync timeout.
View screen saver status ESSSAV }Ssav SX6# ]View the screen saver status X6#.
Reset device to factory settings EZXXX }Zpx ]Resets all device settings to the factory defaults.
Power Save Mode
Power save off E0PSAV }Psav 0]Set the DSC to run in full power mode (default).
Power save on E1PSAV }Psav 1]Place the DSC in low power mode. (This mode can be
exited only via the E0PSAV }command or by cycling
power to the unit.)
View power save setting EPSAV }Psav X6@ ]View power save status X6@.
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