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Extron electronic SW AV Switcher-initiated messages, Error responses, Timeout, Sig n n n n n n

Models: SW AV

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Switcher-initiated messages

Switcher-initiated messages

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

(C) Copyright 2002, Extron Electronics, SW AV Series, Vx.xx Cn

The switcher issues the copyright message and input selected message when it first powers on. Vx.xx is the firmware version number. Cn identifies the currently selected input, where n is the input number (input 1 is the power-up default in normal mode). The switcher also sends the Cn message whenever the selected input is changed using the front panel buttons.

Sig n n n n n n

A video switcher initiates this message when there is a change in the status of a video input. Each n indicates an input (1 through last, from left to right). n = 1 indicates video signal present, n = 0 indicates video signal not preset. There are as many ns in the switcher-initiated message as the maximum number of inputs for the models (4, 6, 8, or 12).

Reconfig

The switcher initiates the Reconfig message when there is a change in an audio model’s audio gain setting.

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)

E10 – Invalid command

E13 – Invalid parameter (out of range)

E14 – Illegal command for this configuration

Timeout

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

Using the command/response table

The command/response table is on the next page. Symbols are used throughout the table to represent variables in the command/ response fields. Command and response examples are shown throughout the table. The ASCII to HEX conversion table at right is for use with the command/ response table.

ASCII to HEX Conversion Table

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SW AV Series Switchers • Remote Control 4-3

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Extron electronic SW AV manual Switcher-initiated messages, Error responses, Timeout, Using the command/response table

Contents

SW AV Series Video and Audio Switchers68-644-01 Rev. E Safety Instructions English PrecautionsConsignes de Sécurité Français Sicherheitsanleitungen DeutschInstallation Quick Start - SW AV Series SwitchersStep 1 - Power down Step 7 - Power upPower Quick Start - SW AV Series Switchers, cont’dSwitching inputs Video switchers must be in normal manual modeSW AV Series Switchers Table of Contents Table of Contentsii SW AV Series Switchers Table of Contents Table of Contents, cont’dContact Closure Control SW 4 and SW 6 Models Only About the Switchers Features SW AV Series SwitchersChapter1One IntroductionFeatures About the SwitchersVideo switchers 1-2 SW AV Series Switcher IntroductionInputs SW AV Series Switchers IntroductionOutputs ModelCaptive screw connector A models Audio switchersRCA connector A RCA models 1-4 SW AV Series Switcher IntroductionSW AV Series Switchers Introduction All switcher modelsIntroduction, cont’d 1-6 SW AV Series Switcher IntroductionInstallation Overview Mounting the Switcher InstallationChapter2Two Cabling and Rear Panel ViewsInstallation Overview Installationstallation, cont’dMounting the Switcher Rack mounting the switcherSW AV Series Switchers Installation Figure 2-1 - Mounting the switcherCabling and Rear Panel Views Figure 2-2 - SW 4AV composite video switcher with audio Installation, cont’d2-4 SW AV Series Switchers Installation Video input and output connections video models onlyFigure 2-5 - Captive screw connector wiring for audio output Figure 2-4 - Captive screw connector wiring for audio inputsSW AV Series Switchers Installation Balanced Stereo InputRemote connection 2-6 SW AV Series Switchers InstallationExternal sync connection Figure 2-6 - RS-232 or Remote portFigure 2-7 - Simple external sync connection example Power connectionFigure 2-8 - Multiple device external sync connection example SW AV Series Switchers InstallationInstallation, cont’d 2-8 SW AV Series Switchers InstallationOptimizing the Audio Audio Switchers Front Panel Controls and Indicators Front Panel OperationsTroubleshooting - If No Image Appears Chapter3Threeswitch mode Front Panel Controls and Indicators3-2 SW AV Series Switchers Operation Operationeration, cont’dFigure 3-1 - SW 8A front panel SW AV Series Switchers OperationFigure 3-2 - SW 6SV front panel Figure 3-3 - SW 12VA RCA front panelInput selection controls and indicators Audio/Video selection control and indicators audio switchersThis button has no function on audio-only switchers 3-4 SW AV Series Switchers OperationAutoswitch mode controls and indicator video switchers Audio controls and indicators audio switchersSW AV Series Switchers Operation Power Executive mode controls and indicatorSwitching inputs This LED will never light on audio-only switchers1. Video autoswitching models must be in normal manual mode Video AND audio switchersExample 2 Select a video input only video AND audio switcher Example 1 Select an inputExample 3 Select an audio input only video AND audio switcher Adjusting audio gain and attenuation audio switchersVideo switchers must be in normal mode 3-8 SW AV Series Switchers OperationEach time you press and release the or button, wait for the or Example 4 Adjust the audio levelnot increment or decrement the audio level Figure 3-8 - Example 4 Viewing the audio level3-10 SW AV Series Switchers Operation Figure 3-9 - Example 4, step E Adjusting the audio levelIf one or more input LEDs are lit AND the +dB LED is lit , press and If one or more input LEDs are lit AND the -dB LED is lit , press andAudio level reset - single input Switch modeadjustment mode Audio level reset - all inputsExecutive mode front panel security lockout Optimizing the Audio Audio Switchers3-12 SW AV Series Switchers Operation MemorySW AV Series Switchers Operation Troubleshooting - If no Image AppearsOperation, cont’d 3-14 SW AV Series Switchers OperationInfrared Remote Control SW4 and SW6 Models Only Remote ControlChapter4Four Simple Instruction Set Control Windows-Based Program ControlFigure 4-1 - Remote connector pinout Host-to-switcher communications4-2 SW AV Series Switchers Remote Control RemoteControl,cont’dError responses Switcher-initiated messagesTimeout Using the command/response tableCommand/Response Table for SIS Commands Remote Control, cont’dSymbol definitions CommandCommand Command/Response Table for SIS Commands ContinuedASCII Command SW AV Series Switchers Remote ControlUsing the software Installing the softwareFigure 4-2 - Universal Switcher program window 4-6 SW AV Series Switchers Remote ControlUsing the help system Infrared Remote ControlAutoswitching models models with video must be in normal manual mode Contact Closure Control SW 4 and SW 6 Models OnlyRemote Control, cont’d 4-8 SW AV Series Switchers Remote ControlSpecifications Part Numbers Specifications and Part NumbersAAppendix A SW AV Series SwitchersA-2 SW AV Series Switchers Specifications and Part Numbers Specificationsecifications, cont’dVideo Video outputAudio SW AV Series Switchers Specifications and Part NumbersAudio output 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBuControl/remote - switcher Specifications, cont’dSpecifications are subject to change without notice SwitcherSwitcher continued Optional accessoriesCables Extron PartA-6 SW AV Series Switchers Specifications and Part Numbers Super High Resolution CableBulk cables Specifications, cont’dFCC Class A Notice Extron’s WarrantyUSA, Canada, South America Europe, Africa, and the Middle EastExtron Electronics, Europe Extron Electronics, USAExtron Electronics, Asia Extron Electronics, Japan