Manuals / Extron electronic / Computer Equipment / Switch

Extron electronic SW AV Audio switchers, Introduction, cont’d, Captive screw connector A models

Models: SW AV

1 50

Download 50 pages 17.64 Kb

Page 10

Introduction, cont’d

Introduction, cont’d

External sync input and output connectors — Allow the switcher to use a black burst (genlock) signal to synchronize switching during the vertical interval. This ensures glitch-free switching among multiple timed sources.

Audio switchers

Captive screw connector (A) models

Inputs — These switchers input 4, 6, 8, or 12 balanced or unbalanced stereo audio signals, on 3.5 mm, 5-pole captive screw terminals.

Outputs — The selected audio input is split, buffered, and output as 2 balanced or unbalanced audio signals, on 3.5 mm, 5-pole captive screw terminals.

RCA connector (A RCA) models

Inputs — These switchers input 4, 6, 8, or 12 unbalanced stereo audio signals on left and right RCA connectors.

Outputs — The selected audio input is split, buffered, and output on 2 sets of connectors.

•One balanced or unbalanced audio signal, on a 3.5 mm, 5-pole captive screw terminal.

•One unbalanced stereo audio signal on left and right RCA connectors.

All audio models

Audio gain/attenuation — Users can set the input level of audio gain or attenuation (-18 dB to +24 dB) via the RS-232 link or from the front panel. Individual input audio levels can be adjusted so there are no noticeable volume differences between sources (figure 1-2) and for the best headroom and signal-to-noise ratio. This function also eliminates the need for separate preamps or attenuators when used with professional (higher line level) and consumer (lower line level) audio equipment.

	dBu	dBV
	+10	+8
	+7	+5
	+4	+2
	+1	-1
	-2	-3	Consumer VCR
	-5	-7	Consumer VCR
	-8	-10	Audio
	-12	-14	Audio
	-12	-14	Inputs
	Low Audio		Inputs
	Low Audio
	Output Level		SW SERIES
			VIDEO / AUDIO SWITCHER

dBu	dBV
+10	+8
+7	+5
+4	+2
+1	-1
-2	-4
-5	-7
-8	-10
-12	-14

Output

Level

I/O	1	2	3	4	5	6	7	8	9	10	11	12	AUDIO
													CONF/SAVE -dB	+dB

		Audio
dBu	dBV	Inputs
+10	+8
+7	+5
+4	+2
+1	-1
-2	-3
-5	-7
-8	-10
-12	-14

High Audio

Output Level

SW AV Series Switcher

Audio System

No noticeable volume

differences between sources

Pro CD Player

Figure 1-2 — Audio gain and attenuation

1-4 SW AV Series Switcher • Introduction

Image 10

Extron electronic SW AV Audio switchers, Introduction, cont’d, Captive screw connector A models, All audio models, Inputs

Contents

SW AV Series Video and Audio Switchers68-644-01 Rev. E Consignes de Sécurité Français PrecautionsSafety Instructions English Sicherheitsanleitungen DeutschStep 1 - Power down Quick Start - SW AV Series SwitchersInstallation Step 7 - Power upSwitching inputs Quick Start - SW AV Series Switchers, cont’dPower Video switchers must be in normal manual modeTable of Contents SW AV Series Switchers Table of Contentsii SW AV Series Switchers Table of Contents Table of Contents, cont’dContact Closure Control SW 4 and SW 6 Models Only Chapter1One SW AV Series SwitchersAbout the Switchers Features IntroductionVideo switchers About the SwitchersFeatures 1-2 SW AV Series Switcher IntroductionOutputs SW AV Series Switchers IntroductionInputs ModelRCA connector A RCA models Audio switchersCaptive screw connector A models 1-4 SW AV Series Switcher IntroductionAll switcher models SW AV Series Switchers Introduction1-6 SW AV Series Switcher Introduction Introduction, cont’dChapter2Two InstallationInstallation Overview Mounting the Switcher Cabling and Rear Panel ViewsMounting the Switcher Installationstallation, cont’dInstallation Overview Rack mounting the switcherSW AV Series Switchers Installation Figure 2-1 - Mounting the switcherCabling and Rear Panel Views 2-4 SW AV Series Switchers Installation Installation, cont’dFigure 2-2 - SW 4AV composite video switcher with audio Video input and output connections video models onlySW AV Series Switchers Installation Figure 2-4 - Captive screw connector wiring for audio inputsFigure 2-5 - Captive screw connector wiring for audio output Balanced Stereo InputExternal sync connection 2-6 SW AV Series Switchers InstallationRemote connection Figure 2-6 - RS-232 or Remote portFigure 2-8 - Multiple device external sync connection example Power connectionFigure 2-7 - Simple external sync connection example SW AV Series Switchers Installation2-8 SW AV Series Switchers Installation Installation, cont’dTroubleshooting - If No Image Appears Front Panel Controls and Indicators Front Panel OperationsOptimizing the Audio Audio Switchers Chapter3Three3-2 SW AV Series Switchers Operation Front Panel Controls and Indicatorsswitch mode Operationeration, cont’dFigure 3-2 - SW 6SV front panel SW AV Series Switchers OperationFigure 3-1 - SW 8A front panel Figure 3-3 - SW 12VA RCA front panelThis button has no function on audio-only switchers Audio/Video selection control and indicators audio switchersInput selection controls and indicators 3-4 SW AV Series Switchers OperationAutoswitch mode controls and indicator video switchers Audio controls and indicators audio switchersSW AV Series Switchers Operation Switching inputs Executive mode controls and indicatorPower This LED will never light on audio-only switchersExample 2 Select a video input only video AND audio switcher Video AND audio switchers1. Video autoswitching models must be in normal manual mode Example 1 Select an inputVideo switchers must be in normal mode Adjusting audio gain and attenuation audio switchersExample 3 Select an audio input only video AND audio switcher 3-8 SW AV Series Switchers Operationnot increment or decrement the audio level Example 4 Adjust the audio levelEach time you press and release the or button, wait for the or Figure 3-8 - Example 4 Viewing the audio levelIf one or more input LEDs are lit AND the +dB LED is lit , press and Figure 3-9 - Example 4, step E Adjusting the audio level3-10 SW AV Series Switchers Operation If one or more input LEDs are lit AND the -dB LED is lit , press andadjustment mode Switch modeAudio level reset - single input Audio level reset - all inputsExecutive mode front panel security lockout Optimizing the Audio Audio Switchers3-12 SW AV Series Switchers Operation MemoryTroubleshooting - If no Image Appears SW AV Series Switchers Operation3-14 SW AV Series Switchers Operation Operation, cont’dChapter4Four Remote ControlInfrared Remote Control SW4 and SW6 Models Only Simple Instruction Set Control Windows-Based Program Control4-2 SW AV Series Switchers Remote Control Host-to-switcher communicationsFigure 4-1 - Remote connector pinout RemoteControl,cont’dTimeout Switcher-initiated messagesError responses Using the command/response tableSymbol definitions Remote Control, cont’dCommand/Response Table for SIS Commands CommandASCII Command Command/Response Table for SIS Commands ContinuedCommand SW AV Series Switchers Remote ControlFigure 4-2 - Universal Switcher program window Installing the softwareUsing the software 4-6 SW AV Series Switchers Remote ControlAutoswitching models models with video must be in normal manual mode Infrared Remote ControlUsing the help system Contact Closure Control SW 4 and SW 6 Models Only4-8 SW AV Series Switchers Remote Control Remote Control, cont’dAAppendix A Specifications and Part NumbersSpecifications Part Numbers SW AV Series SwitchersVideo Specificationsecifications, cont’dA-2 SW AV Series Switchers Specifications and Part Numbers Video outputAudio output SW AV Series Switchers Specifications and Part NumbersAudio 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBuSpecifications are subject to change without notice Specifications, cont’dControl/remote - switcher SwitcherCables Optional accessoriesSwitcher continued Extron PartBulk cables Super High Resolution CableA-6 SW AV Series Switchers Specifications and Part Numbers Specifications, cont’dUSA, Canada, South America Extron’s WarrantyFCC Class A Notice Europe, Africa, and the Middle EastExtron Electronics, Asia Extron Electronics, USAExtron Electronics, Europe Extron Electronics, Japan