ThankyouforpurchasingtheMIDISolutionsMultiVoltageM88-inputMIDIMerger.
TheMIDISolutionsMultiVoltageM8mergesMIDIdatafromeightMIDIinputstoitstwoMIDIoutputs,andmaybe
chainedtogetherwithotherMIDISolutionsMergersforasmanyinputsarerequired.TheMIDISolutionsMultiVoltage
M8isMIDI-poweredandrequiresnobatteriesorpowersupplytooperate.Itiscompatiblewithproductsthatfollow
boththe5Vand3.3VMIDIspecifications.
INTRODUCTION
ConnecttheMIDIOutsorThrusofthesendingMIDIdevicestotheMIDIinputs( through )oftheM8.Connect
MIDI and oftheM8totheMIDIInsofthereceivingMIDIdevices.ThenumberofMIDISolutionsproducts
thatcanbechainedtogetherisdependentonthespecificationsoftheMIDIoutputportsupplyingpower–formore
informationseetheMIDIINDICATORLEDsection.Sincesomeproductsmakeuseofunusedpins1and3topass
phantompower,connectionstothesepinsareprovidedbetweenthe and jacks.Thesepinsarenot
connectedtotheM8'sinternalcircuitry.Itisrecommendedthatthecurrentpassingthoughthesepinsbelimitedto1
amp.
PowerisprovidedtotheM8bythedevicethatisconnectedtoitsfirstMIDIinput, .Ifadevicedoesnotprovide
poweritcanbeconnectedto - .AllMIDImessagesappearingattheM8'sMIDIinputsaremergedtoitsMIDI
outputs and .
TheMIDIIndicatorLEDwilllightassoonasthesendingdeviceisturnedon,andflashesbrieflywheneverMIDIdata
passesthroughtheunit.IftheMIDISolutionsM8'soperatingvoltagedropsbelowthethresholdatwhichitisableto
provideaMIDIstandarddrivecurrentof5mA,itsLEDwillproduceasteadyon/offwarningflash.Afterrisingabove
thisthresholdtheLEDwillcontinuetoproduceasteadyon/dimflashfor10seconds.Sincethevoltagealwaysrises
abovethisthresholdonpowerup,asteadyon/dimflashwillalwaysbevisiblefor10seconds;duringthistimetheunit
isoperatingnormallyandprovidingthestandarddrivecurrent.IftheM8'soperatingvoltageisbelow4VitsLEDwill
produceadimflasheveryfourseconds,thissignalisfordiagnosticpurposesanddoesnotaffectitsoperation.
In1 In8
Out1 Out2
In1 Out1
In1
In2 In8
Out1 Out2
CONNECTIONS
MIDIINDICATORLED
OPERATION
3
Receiving Device #2
MIDI In
MIDI Out or Thru
MIDI Out or Thru
MIDI Out or Thru
MIDI Out or Thru
MIDI Out or Thru
MIDI Out or Thru
MIDI Out or Thru
MIDI Out or Thru
Sending Device #1
Sending Device #5
Sending Device #3
Sending Device #7
Sending Device #2
Sending Device #6
Sending Device #4
Sending Device #8
Receiving Device #1
MIDI In