Serial Communication

Using Simple Instruction Set (SISTM) Control

Host-to-switcher communications

RS-232 communication

Wire the RS-232 connectors as shown below.

The Extron Simple Instruction Set (SIS) commands consist of one or more characters per field. No special characters are required to begin or end a command character sequence. When a command is valid, the switcher executes the command and sends a response to the host device. All responses from the switcher to the host end with a carriage return and a line feed (CR/LF = ]), which signals the end of the response character string. A string is one or more characters.

Switcher-initiated messages

When a local event, such as a front panel operation or error condition, occurs, the switcher responds by sending a message to the host. The switcher-initiated messages are listed below:

(c) Copyright 2006, Extron Electronics, MSW Series Switchers,

Switcher

RS-232

Tx Rx

NA

Ground

Transmit

Receive

 

PC

 

 

5

1

 

9

6

DB9 Pinout (Female)

To control equipment

Pin

RS-232

Function

1

—

—

2

TX

Transmit data (-)

3

RX

Receive data (+)

4

—

—

5

Gnd

Signal ground

6

—

—

7

—

—

8

—

—

9

—

—

Vx.xx]

The switcher issues the copyright message and the input selected message when it first powers on. Vx.xx is the firmware version number.

Inn]

The switcher sends the Inn message whenever the selected input is changed using the front panel buttons. “n” is the input number.

Error responses

When the switcher receives a valid SIS command, it executes the command and sends a response to the host device. If the switcher is unable to execute the command because the command is invalid or it contains invalid parameters, the switcher returns an error response to the host. The error response codes are:

E01 – Invalid input channel number (out of range)

E06 – Invalid input channel change (auto-switch active)

E10 – Invalid command

E13 – Invalid parameter

Timeout

Pauses of 10 seconds or longer between command ASCII characters result in a timeout. The command operation is aborted with no other indication.

Figure 3-1 — RS-232 connector wiring

This port has the following RS-232 protocol:

•9600 baud

•1 stop bit

•No parity

•8 data bits

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MSW 4V SDI rs • Serial Communication

MSW 4V SDI rs • Serial Communication

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Extron electronic MSW 4V SDI rs user manual Serial Communication, Using Simple Instruction Set Sistm Control
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MSW 4V SDI rs specifications

The Extron MSW 4V SDI RS is a high-performance, four-input, SDI switcher that meets the needs of professionals in broadcasting, corporate, educational, and live event environments. The device is designed to facilitate seamless switching between multiple SDI video sources while ensuring high-quality video output. With its robust build and advanced features, the MSW 4V SDI RS is an excellent choice for applications requiring reliable signal management.

One of the key features of the MSW 4V SDI RS is its ability to support a wide range of video formats, including high-definition 720p and 1080p signals, making it versatile for diverse video production requirements. The switcher can handle standard definition (SD), high definition (HD), and even 3G-SDI in one compact unit. This adaptability ensures smooth integration into existing setups without the need for additional converters or signal processors.

In terms of connectivity, the MSW 4V SDI RS is equipped with four SDI input ports, allowing users to connect multiple sources to a single device. The switcher also boasts dual SDI outputs, providing flexibility in routing and distribution of the selected video signal to different displays or recording devices. This feature is particularly valuable in live event scenarios, where real-time switching and signal distribution are critical.

The MSW 4V SDI RS employs advanced digital processing technology to maintain signal integrity and minimize latency during switching operations. Its design includes features such as automatic input detection and signal reclocking, ensuring optimal performance across various video formats. This attention to detail in signal management guarantees that users experience minimal disruption, even during critical moments of a live broadcast.

Furthermore, the MSW 4V SDI RS offers user-friendly controls and monitoring options. Its intuitive front-panel interface allows operators to easily navigate between inputs and outputs, while LED indicators provide immediate feedback on signal status. For more advanced setups, the switcher supports RS-232 control, enabling integration with third-party control systems or automation setups, enhancing flexibility and usability in professional environments.

In summary, the Extron MSW 4V SDI RS is a feature-rich, reliable SDI switcher that excels in managing multiple video sources for various applications. With its advanced technology, robust build quality, and user-centric design, it is an essential tool for professionals in need of efficient, high-quality signal routing and switching.
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