Serial Communication, cont’d

Command/response table for SIS commands

Command	ASCII Command Response		Additional description
	(host to decoder)	(decoder to host)
Input selection

Select video input	X5 !	C X5	Video input X1
Example:	3!	C3	Example: select video input 3
Video mute

Mute on	1B	Vmt X2	Mute video output.
Example:	1B	Vmt1
Mute off	0B	Vmt X2	Unmute video output.

View video mute status	B	Vmt X2	Show the status of video mute.

Input video type (inputs 2 and 4 only)

Set video signal type

X5 * X4 \

X5 Typ X4

Example:	2*3\	2Typ3
View the video signal type	X5 \	X5 Typ X4
Example:	2\	2Typ3

Select input X5 (inputs 2 and 4 only) and assign it a video type X4 . Video type X4 is defined to be: 1=video, 2= S-video, 3 = YUV, 5 = RGBS, 6 = RGBcvS, and SDI. For SDI input, substitute X5 with X1 where the SDI input can be assigned to input X1 (0, 1, 2, 3, or 4 with 0 meaning there is no SDI input).

Example: set input 2 to 3 (YUV) Show the video signal type. Example: show input 2 video type 3 (YUV).

Color

Set a specific color value	X10	C	Col	X10	Specify a color adjustment level.
Example:	47C		Col047		Example: set the color adjustment to 47.
Increment	+C		Col		Increase color adjustment level.
				X10

Decrement	-C		Col	X10	Decrease color adjustment level.
View the color value	C		Col		Show the color adjustment.
				X10

Tint

Set a specific tint value	X10	T	Tin	X10	Specify a tint adjustment level.
Example:	176T		Tin176		Example: set the tint to 176.
Increment	+T		Tin		Increase tint adjustment level.
				X10

Decrement	-T		Tin	X10	Decrease tint adjustment level.
View the tint value	T		Tin		Show the tint adjustment.
				X10

Contrast

Set a specific contrast value		X10	^	Con	X10	Specify the contrast adjustment.
Increment	+^			Con		Increase the contrast.
Increment	+^			Con	X10	Increase the contrast.

Decrement	- ^			Con	X10	Decrease the contrast.
View the contrast value	^			Con		Show the contrast setting.
View the contrast value	^			Con	X10	Show the contrast setting.

Brightness

Set a specific value	X10	Y	Brt	X10	Specify the brightness
					adjustment.
Increment	+Y		Brt		Increase the brightness.
Increment	+Y		Brt	X10	Increase the brightness.

Decrement	-Y		Brt	X10	Decrease the brightness.

3-4 QSD 204 • Serial Communication

QSD 204, QSD 204 D specifications

Extron Electronics has established itself as a leader in professional AV technology, and the QSD 204 series is a testament to this innovation. The QSD 204 and QSD 204 D are powerful presentation switchers designed for seamless connectivity and enhanced video performance in various AV applications.

One of the main features of the QSD 204 is its capability to switch up to four input signals to a single output, providing flexibility in managing multiple sources. This is particularly beneficial in conference rooms, educational institutions, and event spaces, where different content sources need to be showcased efficiently. The switcher's compact design ensures it can fit easily into any AV setup without taking up excessive space.

The QSD 204 is equipped with Extron's renowned video processing technology, ensuring high-quality signal transmission with minimal distortion. It supports various video formats, including SD, HD, and even UHD signals, up to 4K resolution, accommodating a wide range of devices, from legacy equipment to modern sources. The automatic input signal scaling feature also allows for a hassle-free experience, as it adjusts the input resolution to match the output requirements, eliminating resolution mismatch issues.

Another hallmark of the QSD 204 series is its robust integration capabilities. The QSD 204 and QSD 204 D come with various control options, including RS-232 and Ethernet, facilitating easy integration into larger control systems. This feature is pivotal in environments where centralized control is necessary, enabling seamless operation through an intuitive user interface.

Moreover, the QSD 204 D variant provides additional features such as built-in audio de-embedding. This functionality allows users to extract audio signals from the video stream for independent processing or amplification. This is especially useful in professional settings where audio clarity is as crucial as video quality.

The QSD 204 and QSD 204 D are designed with reliability in mind, featuring redundant power supply options for critical AV environments. In addition, they come with Extron's industry-leading support and warranty, ensuring that users have access to top-notch customer service and backup.

With their combination of advanced technology, robust functionality, and exceptional reliability, the Extron QSD 204 and QSD 204 D are ideal solutions for any professional AV setup, delivering high performance and ease of use across a variety of applications. Whether it's for corporate settings, educational institutions, or live events, these presentation switchers are geared to meet the demands of modern AV integration.