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HANDBOOKPassive AESX3CM-AESB3CM-MS3Headphone Volume ControlHeadphone Volume ControlUnbalanced to Balanced Audio ConverterUnbalanced to Balanced Audio ConverterBalanced to Unbalanced Audio ConverterBalanced to Unbalanced Audio Converter3 Way Passive Digital AES3 Splitter, with XLR3 Way Passive Digital AES3ID Splitter, with BNC3 Way Passive Microphone SplitterManufacturers of audio & videoproducts for radio & TV broadcasters

Passive Packs HandbookFor the latest Sonifex handbookinformation please visit the Sonifexwebsite at www.sonifex.co.ukThis handbook is for use with the following product:CM-HPR1, CM-HPX1, CM-ULR1, CM-ULX1, CM-LUR1, CM-LUX1,CM-AESB3, CM-AESX3, CM-MS3Stock Code: 30-365Artwork: AW10865A Sonifex Ltd, 2017All Rights ReservedRevision 1.00, August 2017Sonifex Ltd, 61, Station Road, Irthlingborough,Northants, NN9 5QE, England.Tel: 44 (0)1933 650 700Fax: 44 (0)1933 650 726Email: sales@sonifex.co.ukWebsite: http://www.sonifex.co.ukMade in the UK byInformation in this document is subject to change withoutnotice and does not represent a commitment on the part of thevendor. Sonifex Ltd shall not be liable for any loss or damagewhatsoever arising from the use of information or any errorcontained in this manual.No part of this manual may be reproduced or transmitted inany form or by any means, electronic or mechanical, includingphotocopying, recording, information storage and retrievalsystems, for any purpose other than the purchaser’s personaluse, without the express written permission of Sonifex Ltd.Unless otherwise noted, all names of companies, products andpersons contained herein are part of a completely fictitiousadaptation and are designed solely to document the use ofSonifex product.

ContentsContentsRegister Online for an Extended2 Year WarrantyiProduct Warranty - 2 Year Extended iiSonifex Warranty & Liability Terms &Conditionsii1. Definitionsii2. WarrantyiiiUnpacking Your ProductviRepairs & ReturnsviiConformityWEEE DirectiveAtmosphere/EnvironmentPassive Packsviiviiiviii1CM-MNT1 Desk Mount Panel1CM-HPR1 & CM-HPX1 Headphone VolumeControls2Block Diagrams4Connectors & Controls4Analogue Inputs CM-HPX14Analogue Inputs CM-HPR15Technical Spec CM-HPR1/CM-HPX1 5CM-ULR1 & CM-ULX1 Unbalanced toBalanced Audio Converters6Block Diagrams8Connectors & Controls8Technical Spec CM-ULR1/CM-ULX1 9CM-LUR1 & CM-LUX1 Balanced toUnbalanced Audio Converters10Block Diagrams12Connectors & Controls13Technical Spec CM-LUR1/CM-LUX1 14CM-AESX3 3 Way Passive Digital AES3Splitter, with XLR15Block Diagram16Connectors & Controls16Technical Specification CM-AESX3 18CM-AESB3 3 Way Passive Digital AES3IDSplitter, with BNC19Block Diagram20Controls & Connectors20Technical Specification CM-AESB3 21CM-MS3 Single 3 Way Passive MicrophoneSplitter22Block Diagram23Controls & Connectors24Technical Specification CM-MS326

FiguresFiguresFig A:Fig B:Fig 1-1:Fig 1-2:Fig 1-3:Fig 1-4:Fig 1-5:Fig 2-1:Fig 2-2:Fig 2-3:Fig 2-4:Fig 2-5:CM-MNT1 Desk-Mount PlateFitted On CM-ULX1CM-MNT1 Desk-Mount PlateWith ScrewsCM-HPR1 Front & Rear ViewApplication Example UsingAxia XnodeCM-HPX1 Front & Rear ViewCM-HPR1 Block DiagramCM-HPX1 Block DiagramCM-ULR1 Front & Rear ViewCM-ULX1 Application DiagramCM-ULX1Front & Rear ViewCM-ULR1 Block DiagramCM-ULX1 Block Diagram112334467788Fig 2-6: CM-LUR1 Front & Rear ViewFig 2-7: CM-LUX1 Front & Rear ViewFig 2-8: CM-LUX1 Application DiagramFig 2-9: CM-LUR1 Block DiagramFig 2-10: CM-LUX1 Block DiagramFig 3-1: CM-AESX3 Front & Rear ViewFig 3-2: CM-AESX3 Block DiagramFig 3-3: CM-AESX3 Examples of useof Cumulative CablingFig 3-4: CM-AESB3 Front & Rear ViewFig 3-5: CM-AESB3 Block DiagramFig 3-6: CM-MS3 Front & Rear ViewFig 3-7: CM-MS3 Block DiagramFig 3-8: CM-MS3 Examples of Usage10111212121516171920222323

Warranty RegistrationRegister Online for an Extended2 Year WarrantyProduct:Serial No:As standard, Sonifex products are supplied with a 1 year back to base warranty.If you register the product online, you can increase your product warranty to 2 years and we canalso keep you informed of any product design improvements or modifications.To register your product, please go online to www.sonifex.co.uk/registerZĞŐŝƐƚĞƌĞĚ KĸĐĞ ͻ ϲϭ ƚĂƟŽŶ ZŽĂĚ ͻ /ƌƚŚůŝŶŐďŽƌŽƵŐŚ ͻ ZĞŐŝƐƚĞƌĞĚ ŝŶ ŶŐůĂŶĚ ϭϳϭϳϴϲϰ ͻ s d ZĞŐ EŽ͘ ' ϭϭϵ ϴϱ ϯϮ ϱϮ

WarrantyProduct Warranty - 2 Year ExtendedAs standard, Sonifex products are suppliedwith a 1 year back to base warranty. In orderto register the date of purchase and so that wecan keep you informed of any product designimprovements or modifications, it is importantto complete the warranty registration online.Additionally, if you register the product on theSonifex website, you can increase your productǁĂƌƌĂŶƚLJ ƚŽ Ϯ LJĞĂƌƐ͘ 'Ž ƚŽ ƚŚĞ ŽŶŝĨĞdž ǁĞďƐŝƚĞ at: www.sonifex.co.uk/register to apply for your2 year warranty.Sonifex Warranty & LiabilityTerms & Conditions1. Definitions‘the Company’ means Sonifex Ltd and whererelevant includes companies within the samegroup of companies as Sonifex Limited.͚ƚŚĞ 'ŽŽĚƐ͛ ŵĞĂŶƐ ƚŚĞ ŐŽŽĚƐ Žƌ ĂŶLJ ƉĂƌƚ thereof supplied by the Company and whererelevant includes: work carried out by theCompany on items supplied by the Purchaser;services supplied by the Company; andsoftware supplied by the Company.‘the Purchaser’ means the person ororganisation who buys or has agreed to buy the'ŽŽĚƐ͘ii͚ƚŚĞ WƌŝĐĞ͛ ŵĞĂŶƐ ƚŚĞ WƌŝĐĞ ŽĨ ƚŚĞ 'ŽŽĚƐ ĂŶĚ any other charges incurred by the Company inƚŚĞ ƐƵƉƉůLJ ŽĨ ƚŚĞ 'ŽŽĚƐ͘

Warranty‘the Warranty Term’ is the length of the productwarranty which is usually 12 months from thedate of despatch; except when the product hasbeen registered at the Sonifex website whenthe Warranty Term is 24 months from the dateof despatch.‘the Contract’ means the quotation, theseConditions of Sale and any other documentincorporated in a contract between theCompany and the Purchaser.This is the entire Contract between the partiesrelating to the subject matter hereof andmay not be changed or terminated exceptin writing in accordance with the provisionsof this Contract. A reference to the consent,acknowledgement, authority or agreement ofthe Company means in writing and only by adirector of the Company.2. Warrantya.The Company agrees to repair or (atŝƚƐ ĚŝƐĐƌĞƚŝŽŶͿ ƌĞƉůĂĐĞ 'ŽŽĚƐ ǁŚŝĐŚ ĂƌĞ found to be defective (fair wear and tearexcepted) and which are returned tothe Company within the Warranty Termprovided that each of the following aresatisfied:i.notification of any defect is givento the Company immediatelyupon its becoming apparent to thePurchaser;ii.ƚŚĞ 'ŽŽĚƐ ŚĂǀĞ ŽŶůLJ ďĞĞŶ ŽƉĞƌĂƚĞĚ under normal operating conditionsand have only been subject tonormal use (and in particular the'ŽŽĚƐ ŵƵƐƚ ŚĂǀĞ ďĞĞŶ ĐŽƌƌĞĐƚůLJ connected and must not havebeen subject to high voltage orto ionising radiation and mustiii

Warrantynot have been used contraryto the Company’s technicalrecommendations);iii.ivƚŚĞ 'ŽŽĚƐ ĂƌĞ ƌĞƚƵƌŶĞĚ ƚŽ ƚŚĞ Company’s premises at thePurchaser’s expense;iv.ĂŶLJ 'ŽŽĚƐ Žƌ ƉĂƌƚƐ ŽĨ 'ŽŽĚƐ replaced shall become the propertyof the Company;v.no work whatsoever (other thannormal and proper maintenance)ŚĂƐ ďĞĞŶ ĐĂƌƌŝĞĚ ŽƵƚ ƚŽ ƚŚĞ 'ŽŽĚƐ Žƌ ĂŶLJ ƉĂƌƚ ŽĨ ƚŚĞ 'ŽŽĚƐ ǁŝƚŚŽƵƚ the Company’s prior writtenconsent;vi.the defect has not arisen from adesign made, furnished or specifiedby the Purchaser;b.vii.ƚŚĞ 'ŽŽĚƐ ŚĂǀĞ ďĞĞŶ ĂƐƐĞŵďůĞĚ Žƌ incorporated into other goods onlyin accordance with any instructionsissued by the Company;viii.the defect has not arisen from adesign modified by the Purchaser;ix.the defect has not arisen from anitem manufactured by a personother than the Company. In respectof any item manufactured by aperson other than the Company,the Purchaser shall only be entitledto the benefit of any warrantyor guarantee provided by suchmanufacturer to the Company.In respect of computer software suppliedby the Company the Company does notwarrant that the use of the software willbe uninterrupted or error free.

Warrantyc.ƚŽ ƚŚĞ 'ŽŽĚƐ͘ /Ŷ ƉĂƌƚŝĐƵůĂƌ ƚŚĞ ŽŵƉĂŶLJ shall not be liable for any loss of profitsor other economic losses. The Companyaccordingly excludes all liability for thesame.The Company accepts liability:(i) for death or personal injury tothe extent that it results from thenegligence of the Company, itsemployees (whilst in the course oftheir employment) or its agents (inthe course of the agency);e.At the request and expense of thePurchaser the Company will test the'ŽŽĚƐ ƚŽ ĂƐĐĞƌƚĂŝŶ ƉĞƌĨŽƌŵĂŶĐĞ ůĞǀĞůƐ and provide a report of the results of thattest. The report will be accurate at thetime of the test, to the best of the beliefand knowledge of the Company, and theCompany accepts no liability in respectof its accuracy beyond that set out inCondition (a).f.Subject to Condition (e) no representation,condition, warranty or other term, expressor implied (by statute or otherwise) isŐŝǀĞŶ ďLJ ƚŚĞ ŽŵƉĂŶLJ ƚŚĂƚ ƚŚĞ 'ŽŽĚƐ are of any particular quality or standardv(ii) for any breach by the Companyof any statutory undertaking as totitle, quiet possession and freedomfrom encumbrance.d.Subject to conditions (a) and (c) fromƚŚĞ ƚŝŵĞ ŽĨ ĚĞƐƉĂƚĐŚ ŽĨ ƚŚĞ 'ŽŽĚƐ ĨƌŽŵ the Company’s premises the Purchasershall be responsible for any defect inƚŚĞ 'ŽŽĚƐ Žƌ ůŽƐƐ͕ ĚĂŵĂŐĞ͕ ŶƵŝƐĂŶĐĞ Žƌ interference whatsoever consequentialeconomic or otherwise or wastage ofmaterial resulting from or caused by or

Warrantyor will enable the Purchaser to attainany particular performance or result,or will be suitable for any particularpurpose or use under specific conditionsor will provide any particular capacity,notwithstanding that the requirementfor such performance, result or capacityor that such particular purpose orconditions may have been known (orought to have been known) to theCompany, its employees or agents.g.(i) vi (ii)To the extent that the Companyis held legally liable to thePurchaser for any single breach ofcontract, tort, representation orother act or default, the Company’sliability for the same shall notĞdžĐĞĞĚ ƚŚĞ ƉƌŝĐĞ ŽĨ ƚŚĞ 'ŽŽĚƐ͘The restriction of liability inCondition (g)(i) shall not apply toany liability accepted by the Seller inCondition (c).Ś͘ tŚĞƌĞ ƚŚĞ 'ŽŽĚƐ ĂƌĞ ƐŽůĚ ƵŶĚĞƌ Ă consumer transaction (as defined by theConsumer Transactions (Restrictions onStatements) Order 1976) the statutoryrights of the Purchaser are not affected bythese Conditions of Sale.Unpacking Your ProductEach product is shipped in protective packagingand should be inspected for damage beforeuse. If there is any transit damage take picturesof the product packaging and notify the carrierimmediately with all the relevant details of theshipment. Packing materials should be kept forinspection and also for if the product needs to bereturned.The product is shipped with the followingequipment so please check to ensure that you

CE Conformityhave all of the items below. If anything ismissing, please contact the supplier of yourequipment immediately.ItemQuantityProduct unit1Handbook and warranty card1Repairs & ReturnsPlease contact Sonifex or your supplier if youhave any problems with your Sonifex product.Email technical.support@sonifex.co.uk forthe repair/upgrade/returns procedure, or forsupport & questions regarding the productoperation.ConformityThe products in this manual comply withthe essential requirements of the relevantEuropean health, safety and environmentalprotection legislation.The technical justification file for this product isavailable at Sonifex Ltd.The declaration of conformity can be found at:http://www.sonifex.co.uk/declarationsvii

Safety & InstallationWEEE DirectiveAtmosphere/EnvironmentThe Waste Electrical and ElectronicEquipment (WEEE) Directive wasagreed on 13 February 2003, alongwith the related Directive2002/95/EC on Restrictions of the use ofcertain Hazardous Substances in electricaland electronic equipment (RoHS). The WasteElectrical and Electronic Equipment Directive(WEEE) aims to minimise the impacts ofelectrical and electronic equipment on theenvironment during their life times and whenthey become waste. All products manufacturedby Sonifex Ltd have the WEEE directive labelplaced on the case. Sonifex Ltd will be happy togive you information about local organisationsthat can reprocess the product when it reachesits “end of use”, or alternatively all products thathave reached “end of use” can be returned toSonifex and will be reprocessed correctly freeof charge.viiiThis apparatus should be installed in an areathat is not subject to excessive temperaturevariation ( 0 C, 50 C), moisture, dust orvibration.This apparatus shall not be exposed to drippingor splashing, and no objects filled with water,such as vases shall be placed on the apparatus.

Passive PacksPassive PacksThe passive packs are a range of small utilityproducts which use transformers to changeaudio input & output impedances and levelsand to distribute audio signals.3CM-MNT1 Desk Mount PanelAll of the products, along with the CM-TBU andCM-TLL, can be mounted to the underside ofa desk using the CM-MNT1 desk mount plate.This fixes to the top side of the product andscrews to the underside of a surface.There are a range of different products to suitdifferent needs:CM-HPR1 Headphone Volume ControlCM-HPX1 Headphone Volume ControlCM-ULR1 Unbal to Bal Audio ConverterCM-ULX1 Unbal to Bal Audio ConverterCM-LUR1 Bal to Unbal Audio ConverterCM-LUX1 Bal to Unbal Audio ConverterCM-AESX3 3 Way Dig AES3 Splitter, XLRCM-AESB3 3 Way Dig AES3ID Splitter, BNCCM-MS3 3 Way Microphone SplitterFig A: CM-MNT1 Desk-Mount Plate Fitted On CM-ULX1Fig B: CM-MNT1 Desk-Mount Plate With Screws1

1Passive Headphone AmplifiersCM-HPR1 & CM-HPX1Headphone Volume ControlsThese two products allow the connection ofa stereo balanced line input (RJ45 on the CMHPR1 with StudioHub pinout and 2 x femaleXLRs on the CM-HPX1) and create a headphoneoutput, with level control.StudioHub is a registered trademark of Radio Systems IncFig 1-1: CM-HPR1 Front & Rear View2They are transformer balanced, and can be usedǁŝƚŚ ĂŶLJ ŚĞĂĚƉŚŽŶĞƐ ĂďŽǀĞ ϭϱϬё ŝŵƉĞĚĂŶĐĞ͘The transformer ratio of 2:1 ensures that anyheadphone load presented at the output isreflected through to the input at a 1:4 ratio;ŚĞŶĐĞ Ă ϭϱϬё ƐĞƚ ŽĨ ŚĞĂĚƉŚŽŶĞƐ ůŽŽŬƐ ůŝŬĞ ϲϬϬё at the input, a suitable load for most good qualityline output stages).

Passive Headphone Amplifiers1Fig 1-2: Application Example Using Axia XnodeAxia is a registered trademark of TLS CorpFig 1-3: CM-HPX1 Front & Rear View3

1Passive Headphone AmplifiersBlock Diagrams2:1Headphone Output12345678Pin TypeTip:Ring:Screen:2:1Balanced Input12:12Headphone Output3Balanced Input R1ConnectionLeftRight'ƌŽƵŶĚThe headphone level will be at half the level ofthe incoming signal with the volume control at 100%.Fig 1-4: CM-HPR1 Block DiagramBalanced Input LConnectors & ControlsHeadphone OutputThe stereo headphone output uses a stereo6.35mm jack socket with the following connections:2:12Volume Level ControlThe volume level control sets the output level of thestereo headphone socket and runs logarithmicallyfrom zero to the maximum output level.3Fig 1-5: CM-HPX1 Block Diagram4Analogue Inputs CM-HPX1The stereo analogue input is on two female 3 pinXLR connectors with the following pin assignments:Pin 1: 0V CommonPin 2: PhasePin 3: Non Phase

Passive Headphone AmplifiersAnalogue Inputs CM-HPR1The stereo analogue input is on a female RJ45connector with the following standardStudioHub pin assignments:Pin No.12345678ConnectionLeft PhaseLeft Non-PhaseRight Phase'ƌŽƵŶĚN/CRight Non-PhaseN/CN/CTechnical Spec CM-HPR1/CM-HPX1Audio SpecificationInput/Output Level 2:1Ratio:Input/Output4:1Impedance Ratio:MinimumϭϱϬɏHeadphoneImpedance:Max Input Level: 28dBuMax Output Level: 22dBuFrequency Response:Noise:Distortion Ref 8dBu(Output):Common ModeRejection:ConnectionsMain Stereo Input(CM-HPX1):Main Stereo Input(CM-HPR1):Output:Equipment TypeCM-HPX1:CM-HPR1:120Hz to 20kHz, 0/-0.5dB -115dBu A-wgtd 0.01% 80dB2 x XLR 3 pin, female1 x RJ45 femaleStudioHub pinout¼” (6.35mm) A/B gauge3-pole stereo jack socketsHeadphone volumecontrol, XLR inputHeadphone volumecontrol, RJ45 inputPhysical SpecificationDimensions (Raw): 7.7cm (W) x 8.3cm (D) x4.2cm (H)3.0” (W) x 3.3” (D) x 1.7”(H)Weight:EĞƚƚ͗ Ϭ͘ϮϮŬŐ 'ƌŽƐƐ͗ Ϭ͘ϯϯŬŐEĞƚƚ͗ Ϭ͘ϰϵůďƐ 'ƌŽƐƐ͗ Ϭ͘ϳϯůďƐ5

2Passive Matching ConvertersCM-ULR1 & CM-ULX1 Unbalanced to Balanced Audio ConvertersThese two products allow the connectionof a stereo unbalanced line input on phonoconnectors to a balanced line output (RJ45 onthe CM-ULR1 with StudioHub pinout, 2 xmale XLRs on the CM-ULX1).StudioHub is a registered trademark of Radio Systems IncFig 2-1: CM-ULR1 Front & Rear View6They are transformer balanced, with a 1:2ratio, so 6dB of gain is added to the input tohelp interface with the higher signal levelsassociated with professional outputs.These units are passive versions of the RB-UL1,and provide you with an alternative to wiringan unbalanced output directly into a balancedinput.

Passive Matching Converters2By placing one of theseboxes close to theunbalanced output(before the cable run tothe balanced input), theconnection will benefitfrom the input device’scommon mode rejectioncapabilities, reducing noise Fig 2-2: CM-ULX1 Application Diagramand interference.Fig 2-3: CM-ULX1Front & Rear View7

2Passive Matching ConvertersBlock DiagramsConnectors & ControlsRCA Phono InputsBoth units use a stereo unbalanced line phonoconnector with the following d OutputFig 2-4: CM-ULR1 Block Diagram1:2UnbalancedInputBalanced Output L213Pin TypeWhite Tip:White Screen:Red Tip:Red alogue Outputs CM-ULR1The stereo balanced line output is on a femaleRJ45 connector with the following standardStudioHub pin assignments:LR1:2Balanced Output R213Fig 2-5: CM-ULX1 Block Diagram8Pin No.12345678ConnectionLeft PhaseLeft Non-PhaseRight Phase'ƌŽƵŶĚN/CRight Non-PhaseN/CN/C

Passive Matching ConvertersAnalogue Outputs CM-ULX1The stereo analogue balanced line output ison two male 3 pin XLR connectors with thefollowing pin assignments:Pin 1: 0V CommonPin 2: PhasePin 3: Non PhaseTechnical Spec CM-ULR1/CM-ULX1Audio SpecificationInput/Output Level 1:2Ratio:Input/Output1:4Impedance Ratio:Max Input Level: 22dBuMax Output Level: 28dBuFrequency20Hz to 20kHz, 0/-0.5dBResponse:Noise: -100dBu A-wgtdDistortion Ref 0.02% 8dBu (Output):ConnectionsStereo UnbalancedLine Input (CMULR1 & CM-ULX1):Balanced LineOutput (CM-ULR1):Balanced LineOutput (CM-ULX1):Equipment TypeCM-ULR1:CM-ULX1:22 x RCA phono connectors1 x RJ45 femaleStudioHub pinout2 x male XLRsUnbalanced to balancedaudio converter, RJ45outputUnbalanced to balancedaudio converter, XLR outputPhysical SpecificationDimensions (Raw): 7.7cm (W) x 8.3cm (D) x4.2cm (H)3.0” (W) x 3.3” (D) x 1.7” (H)Weight:EĞƚƚ͗ Ϭ͘ϮϮŬŐ 'ƌŽƐƐ͗ Ϭ͘ϯϯŬŐEĞƚƚ͗ Ϭ͘ϰϵůďƐ 'ƌŽƐƐ͗ Ϭ͘ϳϯůďƐ9

2Passive Matching ConvertersCM-LUR1 & CM-LUX1 Balanced to Unbalanced Audio ConvertersThese two products allow the connection ofa stereo balanced line input (RJ45 on the CMLUR1 with StudioHub pinout, 2 x female XLRson the CM-LUX1) to a stereo unbalanced outputon stereo phono connectors.StudioHub is a registered trademark of Radio Systems IncFig 2-6: CM-LUR1 Front & Rear View10They are transformer balanced, with a 2:1 ratio,so 6dB of attenuation is added to the inputto help interface with the lower signal levelsassociated with consumer outputs.

Passive Matching ConvertersThese units are passive versions of the RB-LU4(though only 1 x stereo channel), and provideyou with an alternative to having to interfacea balanced output to an unbalanced input viaspecialist cables (either by shorting the nonphase to ground or disconnecting it).2They are particularly useful where a sharedbalanced audio feed needs interfacing to anunbalanced input on one or more pieces ofequipment. Using a CM-LUR1 or CM-LUX1galvanically isolates the audio, allowing youto connect via phono cables to an unbalancedinput without compromising the distributedfeed.Fig 2-7: CM-LUX1 Front & Rear View11

2Passive Matching ConvertersFig 2-8: CM-LUX1 Application DiagramBlock DiagramsBalanced Input d Input R2:11234567822:1R123Balanced InputFig 2-9: CM-LUR1 Block Diagram12Fig 2-10: CM-LUX1 Block DiagramR

Passive Matching ConvertersConnectors & ControlsAnalogue Inputs CM-LUR1The stereo analogue input is on a femaleRJ45 connector with the following standardStudioHub pin assignments:Pin No.12345678ConnectionLeft PhaseLeft Non-PhaseRight Phase'ƌŽƵŶĚN/CRight Non-PhaseN/CN/C2Analogue Inputs CM-LUX1The stereo analogue input is on two female3 pin XLR connectors with the following pinassignments:Pin 1: 0V CommonPin 2: PhasePin 3: Non PhaseRCA Phono Analogue Outputs (CM-LUR1 &CM-LUX1)Both units use a stereo unbalanced line outputon a RCA phono connector with the followingconnections:Pin TypeWhite Tip:White Screen:Red Tip:Red Screen:ConnectionLeft'ƌŽƵŶĚRight'ƌŽƵŶĚ13

2Passive Matching ConvertersTechnical Spec CM-LUR1/CM-LUX1Audio SpecificationInput/Output Level2:1Ratio:Input/Output4:1Impedance Ratio:Max Input Level: 28dBuMax Output Level: 22dBuFrequency Response:20Hz to 20kHz, 0/0.5dBNoise: -115dBu A-wgtdDistortion Ref 8dBu 0.01%(Output):Common Mode 80dBRejection:ConnectionsBalanced Line Input(CM-LUR1):Balanced Line Input(CM-LUX1):Unbalanced Line Output(CM-LUR1 & CM-LUX1):141 x RJ45 femaleStudioHub pinout2 x female XLRs2 x RCA phonoconnectorsEquipment TypeCM-LUR1:CM-LUX1:Physical SpecificationDimensions (Raw):Weight:Balanced tounbalanced audioconverter, RJ45 inputBalanced tounbalanced audioconverter, XLR input7.7cm (W) x 8.3cm (D)x 4.2cm (H)3.0” (W) x 3.3” (D) x1.7” (H)Nett: 0.22kg'ƌŽƐƐ͗ Ϭ͘ϯϯŬŐNett: 0.49lbs'ƌŽƐƐ͗ Ϭ͘ϳϯůďƐ

Passive Splitters3CM-AESX3 3 Way Passive Digital AES3 Splitter, with XLRThe CM-AESX3 is a passive digital splitter,designed to split a single AES3 source toup to three destinations, using Neutrik XLRĐŽŶŶĞĐƚŽƌƐ͘ ϭϭϬё ƚĞƌŵŝŶĂƚŝŽŶ ĐĂŶ ďĞ ĂƉƉůŝĞĚ͕ if desired to unconnected outputs. The CMAESX3 is a single “one-to-three” splitter housedin a small form box, and utilises a locking XLRsocket for the input connector.Fig 3-1: CM-AESX3 Front & Rear View15

3Passive SplittersBlock DiagramAES/EBU Output 1213AES/EBU Input1AES/EBU Output 222311013AES/EBU Output 3110213Fig 3-2: CM-AESX3 Block DiagramConnectors & ControlsAES/EBU Input(s)Both units use a stereo balanced line inputon a RCA phono connector with the followingconnections:16The single digital audio input is via a female XLRconnector with the following pin assignment:Pin 1: 0V CommonPin 2: PhasePin 3: Non PhaseAES/EBU Outputs 1-3The digital audio outputs are via male XLRconnectors with the following pin assignment:Pin 1: 0V CommonPin 2: PhasePin 3: Non PhaseTermination SwitchesIt is possible to terminate Output 2 and Outputϯ ǁŝƚŚ ϭϭϬё ŝŶ ƚŚĞ ĞǀĞŶƚ ƚŚĂƚ ƚŚĞLJ ĂƌĞ ŶŽƚ connected to a destination device. It maybe necessary to remove termination from anunused output if a used output is connected toa destination via a long cable run, in order toincrease the level of the AES3 carrier signal.

Passive Splitters10mSourceShortSource100mSplitterSample Rate 96kHzSignal Amplitude 5Vpk-pk100m cumulativeShortDestination 1ShortSplitterSample Rate 192kHzSignal Amplitude 3Vpk-pk30m cumulativeDestination 110mDestination 210mDestination 3Destination 250mShort3Destination 1Destination 3Source50mSplitterSample Rate 48kHzSignal Amplitude 2Vpk-pk200m cumulativeFig 3-3: CM-AESX3 Examples of use of Cumulative Cabling50mDestination 250mDestination 317

3Passive SplittersTechnical Specification CM-AESX3CM-AESX3: Cable Drive CapabilityThe table below sets out the minimum signalamplitude required to drive 100m (cumulative)ŽĨ ϭϭϬё ƚǁŝƐƚĞĚ ƉĂŝƌ ĐĂďůĞ͕ ďĂƐĞĚ ŽŶ ƚŚĞ sample rate of the digital audio:Sample Rate32kHzMinimum Signal Hz5Vpk-pk96kHz5Vpk-pk* Minimum of 2Vpk-pk is defined by the AES3format specification.The table below sets out the minimum signalamplitude required to drive 30m (cumulative)ŽĨ ϭϭϬё ƚǁŝƐƚĞĚ ƉĂŝƌ ĐĂďůĞ͕ ďĂƐĞĚ ŽŶ ƚŚĞ sample rate of the digital audio:18Sample Rate176.4kHzMinimum Signal Amplitude3Vpk-pk192kHz3Vpk-pkEquipment TypeCM-AESX3:3 Way passive digital AES3splitter with XLR connections.Physical SpecificationDimensions: 7.7cm (W) x 8.3cm (D)(Raw):x 4.2cm (H)3.0” (W) x 3.3” (D) x 1.7” (H)tĞŝŐŚƚ͗ EĞƚƚ͗ Ϭ͘ϮϮŬŐ 'ƌŽƐƐ͗ Ϭ͘ϯϯŬŐ EĞƚƚ͗ Ϭ͘ϰϵůďƐ 'ƌŽƐƐ͗ Ϭ͘ϳϯůďƐ

Passive Splitters3CM-AESB3 3 Way Passive Digital AES3ID Splitter, with BNCThe CM-AESB3 is a passive digital splitter,designed to split a single AES3ID source to upto three destinations, using BNC connectors.ϳϱё ƚĞƌŵŝŶĂƚŝŽŶ ĐĂŶ ďĞ ĂƉƉůŝĞĚ͕ ŝĨ ĚĞƐŝƌĞĚ to unconnected outputs. The CM-AESB3 is asingle “one-to-three” splitter housed in a smallform box.Fig 3-4: CM-AESB3 Front & Rear View19

3Passive SplittersBlock DiagramAES/EBUOutput 1AES/EBUOutput 2AES/EBU Input7575AES/EBUOutput 3Fig 3-5: CM-AESB3 Block DiagramControls & ConnectorsAES/EBU Input(s)The single digital audio input is via a femaleBNC connector with the following pinassignment:Tip: SignalScreen: 0V Common20AES/EBU Outputs 1-3The digital audio outputs are via a female BNCconnectors with the following pin assignment:Tip: SignalScreen: 0V CommonTermination SwitchesIt is possible to terminate Output 2 and Outputϯ ǁŝƚŚ ϳϱё ŝŶ ƚŚĞ ĞǀĞŶƚ ƚŚĂƚ ƚŚĞLJ ĂƌĞ ŶŽƚ connected to a destination device. It maybe necessary to remove termination from anunused output if a used output is connected toa destination via a long cable run, in order toincrease the level of the AES3ID carrier signal.

Passive Splitters3Technical Specification CM-AESB3CM-AESB3: Cable Drive CapabilityCumulative cable drive capability of 100m ofϳϱɏ ĐŽĂdžŝĂů ĐĂďůĞ Ăƚ ƐĂŵƉůĞ ƌĂƚĞƐ ƵƉ ƚŽ ĂŶĚ including 96kHz.Equipment TypeCM-AESB3:3 Way passive digital AES3IDsplitter with BNC.Physical SpecificationDimensions7.7cm (W) x 8.3cm (D)(Raw):x 4.2cm (H)3.0” (W) x 3.3” (D) x 1.7” (H)tĞŝŐŚƚ͗ EĞƚƚ͗ Ϭ͘ϮϮŬŐ 'ƌŽƐƐ͗ Ϭ͘ϯϯŬŐEĞƚƚ͗ Ϭ͘ϰϵůďƐ 'ƌŽƐƐ͗ Ϭ͘ϳϯůďƐ21

3Passive SplittersCM-MS3 Single 3 Way Passive Microphone SplitterThe CM-MS3 is a passive microphone splitter,designed to split the signal from a single micor line source, to up to 3 destinations, whilstallowing the operator to pass phantom powerFig 3-6: CM-MS3 Front & Rear View22back from mic preamplifier inputs, or apply 48VDC power directly from the unit. Pin 1“ground” lifts are provided to eliminate groundloop problems.

Passive Splitters3Block DiagramExt. 48VMic Input1Disconnect CT221133Direct Out 148VIsol Out 2GndLift1Splitter 23Isol Out 322133Main DeskMic InCondenser 48VDCMicMonitor MixerMic In 48V PL OffGndLiftRecorderMic InFig 3-7: CM-MS3 Block DiagramMain DeskMic InDynamicMic1Splitter 23Monitor MixerMic InMain DeskMic InCondenserMic1Splitter 2348VMonitor MixerMic In 48V PL On 48V PL OffRecorderMic InRecorderMic InFig 3-8: CM-MS3 Examples of Usage23

3Passive SplittersControls & ConnectorsFront PanelInputThe XLR 3 pin input socket is transformerbalanced and is capable of accepting adynamic or phantom powered microphone, ora line level signal up to 18dBu (without the30dB pad applied). The input socket has thefollowing connections:Pin 1: ScreenPin 2: PhasePin 3: Non PhaseOutput 1 (Direct)The XLR 3 pin plug is a parallel connection ofthe input. It is therefore possible to supplyphantom power to the splitter input byconnecting output 1 to a phantom poweredmicrophone preamplifier. The output 1 plughas the following connections:24Pin 1: ScreenPin 2: PhasePin 3: Non PhaseExternal 48VDC Phantom PowerExternal phantom pwer ( 48V) can be appliedto the input by connecting a supply to the DCpower connector (2.5mm pin). The pinout is asfollows:Phantom Powering GuidanceIt is possible to pass phantom power to thesplitter input by three different methods:ͻ sŝĂ ƚŚĞ ĞdžƚĞƌŶĂů нϰϴs ĐŽŶŶĞĐƚŽƌ͘ͻ &ƌŽŵ Ă ŵŝĐ ƉƌĞͲĂŵƉ ĐŽŶŶĞĐƚĞĚ ƚŽ ĚŝƌĞĐƚ output (output 1).ͻ &ƌŽŵ Ă ŵŝĐ ƉƌĞͲĂŵƉ ĐŽŶŶĞĐƚĞĚ ƚŽ ŽƵƚƉƵƚ Ϯ (provided phantom loopback is enabled).

Passive SplittersIt is therefore possible to concurrently powerthe microphone using any two of the abovemethods (for power redundancy) withoutcausing signal degradation. It is importantthe output connectors are grounded (and notlifted) should the external phantom powerbe connected, to prevent hum/hiss caused byground loop currents.Important: A maximum of two phantompowering methods can be used concurrently.Rear PanelOutput 2 ( 48V PL Phantom Loopback)The XLR 3 pin plug is a transformer isolatedoutput. A switchable centre tap connectionmakes it possible to supply phantom power tothe splitter input by connecting output 2 to aphantom powered microphone preamplifier,3and setting the adjacent push switch to the“PL ON” position. The output 2 plug has thefollowing connections:Pin 1: Screen (Can be grounded or lifted byadjacent push switch)Pin 2: PhasePin 3: Non PhaseOutput 3The XLR 3 pin plug is a transformer isolatedoutput and has the following connections:Pin 1: Screen (Can be grounded or lifted byadjacent push switch)Pin 2: PhasePin 3: Non Phase25

3Passive SplittersTechnical Specification CM-MS3Test&ƌĞƋƵĞŶĐLJ ZĞƐƉŽŶƐĞ͗ Conditionsͻ ZĞĨ͘ ͲϲĚ Ƶ͕ ϭŬ,nj ͻ ŽƵƌĐĞ /ŵƉĞĚĂŶĐĞ с ϭϱϬё ͻ ŽĂĚ /ŵƉĞĚĂŶĐĞ с ϭϬŬё ResultϭϬ,nj Ͳ ϯϬŬ,nj цϬ͘ϱĚ dŽƚĂů ,ĂƌŵŽŶŝĐ ŝƐƚŽƌƚŝŽŶ͗ ͻ ZĞĨ͘ нϯĚ Ƶ͕ ϱϬ,nj ͻ ŽƵƌĐĞ /ŵƉĞĚĂŶĐĞ с ϭϱϬёͻ ŽĂĚ /ŵƉĞĚĂŶĐĞ с ϭϬŬё Ϭ͘ϬϮйdŽƚĂů ,ĂƌŵŽŶŝĐ ŝƐƚŽƌƚŝŽŶ Ϭ͘ϭй͗ ͻ ZĞĨ͘ Ϭ͘ϭйd, нE͕ ϱϬ,nj ͻ ŽƵƌĐĞ /ŵƉĞĚĂŶĐĞ с ϭϱϬёͻ ŽĂĚ /ŵƉĞĚĂŶĐĞ с ϭϬŬёнϭϯĚ ƵdŽƚĂů ,ĂƌŵŽŶŝĐ ŝƐƚŽƌƚŝŽŶ ϭй͗ ͻ ZĞĨ͘ ϭйd, нE͕ ϱϬ,nj ͻ ŽƵƌĐĞ /ŵƉĞĚĂŶĐĞ с ϭϱϬёͻ ŽĂĚ /ŵƉĞĚĂŶĐĞ с ϭϬŬё нϭϴĚ Ƶ ŽŵŵŽŶ DŽĚĞ ZĞũĞĐƚŝŽŶ ZĂƚŝŽ͗ ͻ ZĞĨ͘ ϮϬŬ,nj ͻ ŽƵƌĐĞ /ŵƉĞĚĂŶĐĞ с ϲϬϬё ͻ ŽĂĚ /ŵƉĞĚĂŶĐĞ с ϭϬŬёхϲϬĚ Equipment TypeCM-MS3Single 3 way passive microphone splitter.26

Passive SplittersPhysical SpecificationDimensions (Raw):tĞŝŐŚƚ͗ 37.7cm (W) x 8.3cm (D) x 4.2cm (H)3.0” (W) x 3.3” (D) x 1.7” (H)EĞƚƚ͗ Ϭ͘ϯϬŬŐ 'ƌŽƐƐ͗ Ϭ͘ϰϬŬŐEĞƚƚ͗ Ϭ͘ϲϲůďƐ 'ƌŽƐƐ͗ Ϭ͘ϴϴůďƐ27

www.sonifex.co.ukt: 44 (0)1933 650 700f: 44 (0)1933 650 726sales@sonifex

Splitter, with XLR 15 Block Diagram 16 Connectors & Controls 16 Technical Specification CM-AESX3 18 CM-AESB3 3 Way Passive Digital AES3ID Splitter, with BNC 19 Block Diagram 20 Controls & Connectors 20 Technical Specification CM-AESB3 21 CM-MS3 Single 3 Way Passive Microphone Splitter

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