Gefen EXT-DVIKVM-841DL User manual

8x1 DVI KVM DL

Switcher

EXT-DVIKVM-841DL

User Manual

www.gefen.com

ASKING FOR ASSISTANCE

Rev A7

Technical Support:

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c/oCustomerService

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Notice

Gefen,LLCreservestherighttomakechangesinthehardware,packagingand

anyaccompanyingdocumentationwithoutpriorwrittennotice.

8x1 DVI KVM DL Switcher isatrademarkofGefen,LLC.

©2010Gefen,LLC.,AllRightsReserved.

Alltrademarksarethepropertyoftheirrespectiveowners

CONTENTS

1 Introduction

2 OperationNotes

3 Features

4 PanelLayout

5 PanelDescriptions

6 Connectingthe8x1DVIKVMDLSwitcher

7 8x1DVIKVMDLRemoteDescription

8 8x1DVIKVMDLSwitcherRemoteInstallation

9 RMT-8IRRemoteand8x1DVIKVMSwitcherConguration

10 EDIDModes

12 DL(DualLink)OnlyModes

13 RS-232SerialCommunication

14 RS-232SerialControlCommands

22 RackMountInstallation

23 Specications

24 Warranty

INTRODUCTION

Congratulationsonyourpurchaseofthe8x1DVIKVMDLSwitcher.Your

completesatisfactionisveryimportanttous.

Gefen

Gefendeliversinnovative,progressivecomputerandelectronicsadd-onsolutions

thatharnessintegration,extension,distributionandconversiontechnologies.

Gefen’sreliable,plug-and-playproductssupplementcross-platformcomputer

systems,professionalaudio/videoenvironmentsandHDTVsystemsofallsizes

withhard-workingsolutionsthatareeasytoimplementandsimpletooperate.

The Gefen 8x1 DVI KVM DL Switcher

Therack-mountableGefen8x1DVIKVMDLSwitcheroffersaneconomical

solutionbyeliminatingtheneedtopurchasemanydisplaysforeachcomputerin

astudioorlabsituation.Aplug-and-playsolutionthatsupportsbothMacintosh

andIBM-PCcomputers,the8x1DVIKVMDLSwitchersharesoneDVIdisplay

withuptoeightcomputersorotherDVIvideosources.AsingleUSB2.0port,

keyboard&mouseports,andananalogaudiojackarealsoswitched.The

switchersavesspaceonyourdesktopbyeliminatingacrowdedworkspacefull

ofDVImonitors,keyboards&mice,andUSBandaudiocables.SwitchingofDVI

sourcesiseasyandreliable.

How It Works

TheDVImonitorisconnectedtothe8x1DVIKVMDLSwitcher’soutput.Upto

eightDVIvideosourcesconnecttotheswitcher’sDVIinputsusingincludedhigh

qualityDVIcables.Theincludedpowersupplyisconnectedtotheswitchervia

thelockingpowerplugandthentoapoweroutlet.ThecurrentlyselectedDVI

videosignalappearsonthesharedmonitor.DVIVideosources(andoptionally

keyboardsandmice,USBandaudiocables)areselected/switchedusingthe

RMT-8IRremotecontrol,RS-232control,ortheinputselectorpushbuttononthe

frontpaneloftheswitcher.

OPERATION NOTES

READ THESE NOTES BEFORE INSTALLING OR

OPERATING THE GEFEN 8X1 DVI KVM DL SWITCHER

• The8x1DVIKVMDLSwitcherwilltakeanyofuptoeight(8)DVIdual-linkor

single-linkresolutioninputsandswitchthem,oneatatime,toaDVIoutput

devicesuchasadisplay/monitororprojector.Duallinkresolutionsupto

3840x2400aresupported.

• The8x1DVIKVMDLSwitcherishousedinametalboxforbetterRF

shielding.

FEATURES

Features

• Switchesbetweenanyeightduallink(orsinglelink)DVIcomputers

• SwitchesUSB2.0,keyboard,mouse,andanalogaudio

• SupportseitherPCorMacUSBkeyboard/mouse

• MaintainshighestresolutionduallinkandsinglelinkDVI

• Supportsresolutionsupthrough1920x1200and3840x2400

• ExtendstherangeofDVIvideoupto50feet

• EDIDManagement

• DiscreteIRremotecontrolincluded

• SerialRS-232remoteportforswitchingviaautomatedcontrolorPC

• SupportsDDWGstandardsforDVImonitors

• HDCPCompliant(whenusingEDIDDSMode)

• Rackearsincluded

Package Includes

(1)8x1DVIKVMDLSwitcher

(8)6ft.DualLinkDVIcables

(8)6ft.USBcables

(8)6ft.3.5mmjackanalogaudiocables

(1)RMT-8IRRemoteControl

(1)5V/4ADClockingpowersupply

(1)Setofrackears

(1)QuickStartGuide

Back Panel

PANEL LAYOUT

Front Panel

1211

PANEL DESCRIPTIONS

1 External IR Port

ForconnectionofexternalIRextensiondevicesuchastheGefenIRExtender

(part#EXT-RMT-EXTIR).

2 IR Receiver

ReceivesIRsignalfromthehandheldInfraredremotecontrolunitincludedwith

the8x1DVIKVMDLSwitcher.

3 DVI Signal Status LEDs 1-8

ProvidevisualconrmationofthecurrentlyselectedDVIinputsignalbeing

outputtotheDVIdisplaydevice.

4 DVI Input Selector

Push-buttonswitchcyclesthenextDVIinput1-8inaforwardsequencestarting

againat1.

5 Power Indicator LED

Indicateswhenthe8x1DVIKVMDLSwitcherisreceiving5VDCpowerfromits

includedACpowersupply.

6 5V Locking Power Receptacle

Suppliespowertothe8x1DVIKVMDLSwitcherfromtheincludedexternal5V

DCpowersupply.The5Vpowersupplyhasalockingpowertipwhichscrews

intothisreceptacle.

7 DVI Input Ports 1-8

DVIvideosourcesonethrougheightattachtothe8x1DVIKVMDLSwitcher.

8 DVI Output Port

ThisDVIoutputportisconnectedtothedisplaydevice(Monitor,Projector).

9 RS-232 Serial Communications Interface

Providedforexternalcontrolofthe8x1DVIKVMDLSwitcher.

10 3.5mm mini-Stereo Analog Audio Jacks 1-8

AudioSourcesonethrougheightconnecttotheswitcherhere.

11 USB Type B Ports 1-8

USBdevicesonethrougheightconnecttotheswitcherhere.

12 USB Type A Control Ports 1-2

Thekeyboard&mouseforcontrollingtheselectedremotecomputerordevice

connectstotheswitcherhere.

CONNECTING THE 8X1 DVI KVM DL SWITCHER

How to Connect the 8x1 DVI KVM DL Switcher

1. Connectyourcomputers’DVI,USB,andAudiosourcestothe8x1DVIKVM

DLSwitcherinputsusingthesuppliedcables.

2. ConnectyourDVIdisplaytotheDVIoutputofthe8x1DVIKVMDLSwitcher

usingauser-suppliedDVIcable.

3. ConnectyourUSBandaudiodevicestotheUSBandaudiooutputswithuser-

suppliedcables.

4. TurnontheDVIdisplayorprojectorrst.

5. Connecttheincluded5VDCpowersupplytothe8x1DVIKVMDLSwitcher

bybyscrewingits5VDCpowersupplytipintothereceptacleintherearof

theunit,thenplugitintothewall.

6. Turnonthecomputer.

Note: WhenpoweringtheSwitcheronforthersttime,makesurethatthe

displayispoweredonandconnectedtotheSwitcherbeforeapplyingpowerto

theSwitcher.ThereasonforthisprocedureisthatEDIDinformationwillonlybe

copiedfromthedisplaydevicetoDVIsourcesuponpower-up.Ifpowerisapplied

totheSwitcherbeforethedisplaydeviceisconnectedandpoweredup,the

Switcher’slastrecordedEDIDfrompreviousactivitywillbeused.

Wiring Diagram for the 8x1 DVI KVM DL Switcher

EXT-DVIKVM-841DL

DVI Dual Link Display

USB Keyboard

USB Mouce &

Powered Speaker

DVI DUAL LINK CABLE

AUDIO CABLE

USB CABLE

DVI Dual Link Sources

USB Sources

Audio Sources

Switcher

8X1 DVI KVM DL REMOTE DESCRIPTION

LED Indicator

Input Selection

Buttons

TheRMT-8IRremotecontrolwillallowtheusertochoosewhichof8DVIsources

orcomputerswillbeselected.Pleaseusetheinformationbelowwhenselectingthe

desiredsource:

RMT-8IR Button DVI Source

1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

8X1 DVI KVM DL SWITCHER REMOTE INSTALLATION

TousetheRMT-8IRremote,removethebatterycoveronthebackoftheremoteto

revealthebatterycompartment.Inserttheincludedbatteryintotheopenbatteryslot.

Thepositive(+)sideshouldbefacingup.EnsurethatbothDIP(DualInlinePackage)

switchesareintheOFFposition.Replacethebatterycover.Theremoteshipswith2

batteries.Onebatteryisneededforoperationandtheotherbatteryiscomplimentary.

IR Code Dip Switches

Empty Battery Slot

RMT-8IR REMOTE AND 8X1 KVM SWITCHER CONFIGURATION

How to Resolve IR Code Conicts

IntheeventthatIRcommandsfromotherremotecontrolsconictwiththe

suppliedRMT-8IRremotecontrol,changingtheremotechannelwillalleviatethis

issue.TheRMT-8IRremotecontrolandthe8x1DVIKVMDLSwitcherbothhave

banksofDIP(DualInlinePackage)Switchesforconguringtheremotechannel

thatbothunitsusetocommunicate.Thesesettingsmustexactlymatcheach

otherforproperoperation.

TheDIPSwitchbankontheRMT-8IRislocatedunderneaththebattery

cover.DIPSwitchbanksforthe8x1DVIKVMDLSwitcherarelocatedonthe

undersideoftheunitbeneathablackpieceofmetallictape.OneDIPswitch

bank(4-switch)isfortheadjustmentofremotecontrolfrequenciesandswitch

behavior.TheotherDIPswitch(8-switch)isreservedforDLOnlymode(page

11).Switches1and2ontheRMT-8IRdirectlycorrespondtoDIPSwitches1and

2onthe8x1DVIKVMDLSwitcher.Onlyswitches1and2(of4inthatbank)are

usedforIRCodesettings.

RemoteChannel1:

Default

12

RemoteChannel2:

12

RemoteChannel3:

12

RemoteChannel4:

12

Left: Pictureoftheopenedrearbattery

compartmentoftheRMT8-IRremoteshowing

theexposedDIPSwitchbankbetweenthe

batterychambers.

8x1DVIKVMDLSwitcher

RemoteChannel1:

Default

RemoteChannel4:

RemoteChannel3:

RemoteChannel2:

EDID MODES

EDID. What is it, and what is it used for?

Undernormalcircumstances,acomputersourcedevice(digitaloranalog)will

requireinformationaboutaconnecteddevice/displaytoassesswhatresolutions

andfeatures(capabilities)arepossible.Thesourcedevicecanthencaterits

outputtocreateresolutionsand/orfeaturesthatarecompatiblewiththeattached

device/display.ThiscapabilityinformationiscalledEDID(ExtendedDisplay

IdenticationData).AsourcedevicecanonlyacceptandreadoneEDIDdata

structure/recordfromaconnectedsourcedevice/display.Likewise,thesource

devicecanoutputonlyonevideoresolutiontoaconnecteddevice/display.

The importance of EDID with regards to the 8x1 DVI KVM DL Switcher

The8x1DVIKVMDLSwitcherhandlesmultiplesources/inputs.Eachconnected

sourcedevicemustcorrectlyreadoneEDIDdatastructureinordertoaddressits

displaydevicecorrectly.EDIDmanagementiscarefullyhandledbytheSwitcher

toinsurethatEDIDisrecordedandretransmittedtosourcesproperlyatalltimes,

otherwisedisplayofinputsourcesmightnothappencorrectly(oratall).

Managing EDID with the 8x1 DVI KVM DL Switcher

The8x1DVIKVMDLSwitcherhas2modesforroutingEDID:

1. ThedefaultmodeistheLOCALmodewhichwillstoretheEDIDofasource

device(oneforeachinput)intothe8x1DVIKVMDLSwitcher.TheEDID

storedineachLOCALlocationcanbefromalocaldisplaydeviceorfrom

aremotesourceovertheRS-232serialcommunicationsport.The8x1DVI

KVMDLSwitcheralsoincludesabuilt-inEDIDmemorybankwhichcan

storeupto7separateEDIDdatastructureswhichcanthenbeloadedto

eachoftheLOCALEDIDlocations.

2. ThesecondmodeistheDS(DownStream)modewhichfunctionsasa

simpleEDIDpass-through.Inthismode,thedisplaydeviceconnectedtothe

8x1DVIKVMDLSwitcherwillpassitsEDIDdirectlytowhicheverDVIinput

sourceiscurrentlyselected.HDCP is supported in this mode only.

NOTE:The8x1DVIKVMDL/SLSwitcheralsofeaturesanEDIDLockMode,

allowingtheEDIDtobestored.Seethefollowingpagefordetails.

How do I change EDID modes in the 8x1 DVI KVM DL Switcher?

Thereisanbankof4DIPswitcheslocatedonthemaincircuitboardonthe

undersideofthe8x1DVIKVMDLSwitcher.DIPswitch3canbeusedtoset

eithertheDSorLOCALEDIDmodes.Thebankof8DIPswitchesareusedfor

theDL(duallink)onlyfeatureandarediscussedlateronpage12.

TIP: AdvancedEDIDfunctionscanalsobemanagedviatheRS-232serial

communicationsport.Seepage13formoreinformationontheRS-232serial

communicationfeatures.

EDID MODES

EDID Modes

Thediagrambelowillustratesthe4DIPswitchbank.The8DIPswitchbank

functionsareoutlinedlateronthispage.

DIP SWITCH Function

1 IRChannel

2 IRChannel

3 EDIDMode

4 EDIDLockMode

UseDIPswitch3tosetthedesiredEDIDmode.

1. LOCAL EDID Mode (Switch 3=OFF) DEFAULT

• EDIDthatisstoredintheLOCALmemorylocationispassedtoallinputs.

• Bydefault,duringeachpoweronprocesstheconnecteddisplay’s

EDIDwillbeautomaticallycopiedtoeachoftheinput’sLOCALEDID

locations.*

• TheEDIDstoredintheLOCALlocationscanbeoverwrittenwithanother

EDIDfromthefollowinglocations(Theseoptionscanonlybeinitiatedby

usingRS-232serialcommunicationcommands):

• Built-inEDIDmemorybank(upto7EDIDrecordscanbestored)

• EDIDcollecteddirectlyfromtheinputdisplay*

• ExternallyuploadedviatheRS-232commandset(seep.13)

*ForthedefaultEDIDwritingprocesstobesuccessfultheconnecteddisplay

mustbepoweredon.

2. DS (Down Stream) EDID Mode (Switch 3=ON)

• EDIDispasseddirectlyfromtheconnecteddisplaytothecurrentlyactive

input.Note: HDCP is supported in this mode only.

3. EDID Lock Mode (DIP Switch 4 = ON)

• LocksthelaststoredEDID,eveniftheunitispower-cycled.Tostorea

newEDID,dothefollowing:

1. Power-downtheSwitcherandsetDIPSwitch4totheOFFposition.

2. ConnectthedisplaytotheDVIoutputportthenpower-ontheSwitcher.

3. SetDIPSwitch4totheONpositiontolocktheEDID.

DL (DUAL LINK) ONLY MODES

DL (Dual Link) Only Modes

The8DIPswitchbank,locatedontheundersideofthe8x1DVIKVMDL

SwitchercabbeusedtoseteachindividualinputtoworkinaDualLinkOnly

mode.ThesemodesshouldonlybeenabledifissuesoccurwhenusingDual

Linksourcesanddisplaysinthedefaultmode.

DIP SWITCH Function DIP SWITCH Function

1 Input1Mode 5 Input5Mode

2 Input2Mode 6 Input6Mode

3 Input3Mode 7 Input7Mode

4 Input4Mode 8 Input8Mode

UseDIPswitch3tosetthedesiredEDIDmode.

DL (Dual Link) and SL (Single Link) Mode (Switch=OFF) DEFAULT

• Thissettingcanbesetindividuallyforeachinput.Thismodewillallow

theconnectionofbothDualLinkandSingleLinkdisplays.

DL (Dual Link) Only Mode (Switch=ON)

• Thissettingcanbesetindividuallyforeachinput.Thismodeshouldbe

enabledifissueswiththedefaultoccurwithDualLinkdisplays.

RS-232 SERIAL COMMUNICATION

What features are available via the RS-232 serial communications port?

The8x1DVIKVMDLSwitchercanacceptcommandsthroughtheRS-232serial

communicationsportlocatedontherearpanel.ThecurrentRS-232control

featuresare:

• Switching/routingofinputstooutputswithouttheRMT-8IRremotecontrol.

• SwitchEDIDmodeswithoutoperatingtheDIPswitchesontheundersideof

theunit.

• ManagingtheEDIDbankandEDIDthatisloadedintotheLOCALEDID.

• UploadnewEDID’stotheEDIDbankordirectlytotheLOCALEDID

location.

How do I use these features?

Thesefeatureswereinitiallyintendedforutilizationbycustominstallersin

automatedsetups.However,thesefeaturescanbetestedbyusinganycomputer

withaterminalemulationprogram.

What pins are used for communication with the 8x1 DVI KVM DL Switcher?

Onlypins2(Receive),3(Transmit),and5(Ground)areusedforcommunication.

Anull-modemadaptershouldnotbeusedwiththisproduct.

5 4 3 2 1

9 8 7 6

1 2 3 4 5

6 7 8 9

Only Pins 2 (RX), 3 (TX), and 5 (Ground) are used on the RS-232 serial interface

What are the communication port settings?

Bitspersecond............................................................................................19200

Databits...............................................................................................................8

Parity.............................................................................................................None

Stopbits................................................................................................................1

FlowControl..................................................................................................None

RS-232 SERIAL CONTROL COMMANDS

RS-232 Features

RS-232remotefunctionsareusedtocontrolofthisproduct’sfeatures.Features

includeinputtooutputrouting,EDIDstorage,EDIDmanagement,etc.

Functions Syntax

Thesyntaxforeachfunctionisalwaysthesame:

#Characterasthestartag→Functionname→Space(_)asfunctionname

endag→Parameter1→Space→Parametern→CarriageReturn(\r)→

Sample:

#FunctionName_param1_param2_param3_param4...\r

SyntaxisNOTcasesensitive.

EDID Management

Function Description

#EDIDDSTOLO ReaddownstreamEDIDandstoresintoallinputs

#EDIDDSTOBA ReaddownstreamEDIDandstoresinEDIDBank

#EDIDBATOLO ReadfromEDIDbankandstoreintoalllocalinputs

#DDCTODS RouteinputDDCtodownstreamEDID(pass-throughmode)

#DDCTOLO RoutesinputDDCtolocalEDID

#DEF Setsunittodefaultfactorysettings

#LOEDIDTOBA LoadEDIDfromserialportandstoreinEDIDbank

#LOEDIDTOLO LoadsEDIDfromserialportandstoreinanyinput

#PRBAEDID ReadsEDIDfromEDIDbankandsendstoserialport

#PRDSEDID ReadsdownstreamEDIDandsendsittoserialport

#PRLOEDID ReadslocalinputEDIDandsendsittoserialport

RS-232 SERIAL CONTROL COMMANDS

#EDIDDSTOLO Function

The#EDIDDSTOLO functionreadsthedownstreamEDIDandstoresintoalllo-

calinputs.

Syntax:

#EDIDDSTOLO

Parameters:

None

#EDIDDSTOBA Function

The#EDIDDSTOBAfunctionreadsthedownstreamEDIDandstoresittoa

speciedEDIDbank.

Syntax:

#EDIDDSTOBA param1

Parameters:

param1   EDIDbankoffset   [1-7]

#EDIDBATOLO Function

The#EDIDBATOLOfunctionreadsanEDIDfromanEDIDbankandstoresitin

allinputs.



Syntax:

#EDIDBATOLO param1

Parameters:

param1   EDIDbankoffset   [1-7]

RS-232 SERIAL CONTROL COMMANDS

#DDCTODS Function

The#DDCTODSfunctionroutestheinputDDCtothedownstreamEDID(pass-

throughmode).



Syntax:

#DDCTODS

Parameters:

None



#DDCTOLO Function

The#DDCTOLOfunctionroutestheinputDDCtothelocalEDID.



Syntax:

#DDCTOLO

Parameters:

None

#DEF Function

The#DEFfunctionsettheSwitchertothefactorydefaultsettings.



Syntax:

#DEF

Parameters:

None

Gefen EXT-DVIKVM-841DL User manual

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