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FOCUS Enhancements TView Quad Scan Manual user manual Selecting the QuadScan’s address

Models: TView Quad Scan Manual

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4.3.3Selecting the QuadScan’s address

In an RS-422, there may be as many as 8 QuadScans operating within a system. In order to provide a control mechanism to differentiate each QuadScan, the user must program each QuadScan’s address using the Front Panel.

Programming the address is a simple procedure. Turn the QuadScan on, or cycle the control sequence such that the Power Up Identification is visible (i. e. “QUADSCAN”) on the LED display. Press the Right Arrow Button. You will see the QuadScan’s address indicated on the LED display. When you are finished, press either the + button or the - button. The QuadScan will remember its address until you change it in the same fashion.

The address circuitry is active even when you are using the RS-232 link (which does not permit multiple QuadScans or other devices to be connected in a multiple unit configuration). The default address is 0.

4.3.4Sending Communications Commands to the QuadScan

The serial port of the QuadScan accepts serial data at 9600 baud, 8data bits, no parity bit, 1 stop bit. It is essential that the serial communications device that delivers commands to the QuadScan be set up in this fashion.

The QuadScan accepts 8 bit characters as commands. The commands to turn the QuadScan on and off are received as strings of ASCII alphabetic characters and binary numbers. For the purposes of this manual, all ASCII characters and binary numbers will be referred to with the decimal numbering sequence (i. e. the minimum value of a byte is 0, the maximum value of a byte is 255, the value of an upper case A is 65).

The Command sequence for communicating with the QuadScan is as follows:

1)The Activation Command is given. The Activation Command consists of the character string: QSRONx (where x is the address of the QuadScan). The Activation Command (and all other commands) must be followed by a Carriage Return (ASCII character value of 13 decimal) to be accepted.

The following byte string (using decimal values for ASCII characters) indicates a valid Activation Command for a QuadScan previously programmed to be address 3:

81

83

82

79

78

03

13

Q

S

R

O

N

3

<CR>

If the QuadScan receives any unexpected input before the reception of the Activation Command, it will ignore it. If it receives an unexpected byte during the transmission of the Activation Command, the Activation Command must be re- transmitted (the Activation sequence is reset).

2)Individual Commands are given. Any number of commands may be given after the QuadScan is activated. The QuadScan individual commands consist of 2 byte strings. Each 2 byte string is an internal Register Number Byte followed by a Value Byte. The Value Byte has a different meaning and legal range for each register. Each command ( i. e. Register Number Byte, followed by Value Byte) must be concluded with a Carriage Return.

The Value Byte provides “absolute information” if the parameter in question is a Toggle or Multiple Choice Item. If the parameter in question is a range item, the Value Byte provides “relative information” incrementing or decrementing the existing value of that parameter by on count.

TView QuadScan User's Manual 0092-5000-200

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FOCUS Enhancements TView Quad Scan Manual user manual Selecting the QuadScan’s address
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TView Quad Scan Manual specifications

FOCUS Enhancements has established itself as a leader in the field of video technology with its TView Quad Scan. This innovative device specifically caters to the needs of professionals in the video production arena, offering advanced features that assist in delivering high-quality visual outputs.

The TView Quad Scan is primarily designed for users who require the ability to display and manage multiple video sources simultaneously. It supports up to four inputs and can output to a single screen, providing a streamlined way to view and manage your content. This feature is particularly advantageous for live event production, video conferencing, and broadcasting, allowing operators to monitor several feeds without the need for multiple monitors.

One of the standout characteristics of the TView Quad Scan is its advanced scaling technology. The device features high-performance scaling algorithms that ensure each input is resized and optimized for output without sacrificing image quality. This means operators can switch between different video resolutions seamlessly, adapting to various content formats on-the-fly.

In terms of connectivity, the TView Quad Scan is equipped with a range of input options, including HDMI, SDI, and composite video, making it versatile and compatible with various video equipment. The outputs support HD resolutions, which are essential for today's high-definition displays, further enhancing its usability in modern production environments.

The user interface of the TView Quad Scan is designed with simplicity in mind, featuring an intuitive layout that allows for easy navigation through its many functions. Operators can quickly adjust settings, switch inputs, and modify configurations using either the front panel controls or remote access via a web interface. This flexibility is beneficial in fast-paced production environments, where time is often of the essence.

Moreover, the TView Quad Scan offers features such as picture-in-picture (PiP) functionality, which allows users to overlay video sources for enhanced presentations and analysis. This capability is particularly useful in scenarios such as sports broadcasting and educational environments, where multiple angles or supplementary visuals enhance the viewer's experience.

In conclusion, the FOCUS Enhancements TView Quad Scan stands out as a robust video management tool designed to meet the diverse needs of today's media professionals. With its advanced scaling technology, multiple connectivity options, and user-friendly interface, the TView Quad Scan is an invaluable asset for anyone looking to elevate their video production capabilities.