Exhibit 21.1
 ADC Telecommunications, Inc.
Subsidiaries
12/17/2008
 Name
    
    JurisdictionADC (India) Communications & Infotech Private Limited
    
    IndiaADC Beteiligungsgesellschaft mbH
    
    GermanyADC Communications (Australia) PTY Limited
    
    AustraliaADC Communications (NZ) Ltd.
    
    New ZealandADC Communications (SEA) Pte. Ltd.
    
    SingaporeADC Communications (Shanghai) Company Ltd.
    
    Peoples Republic of ChinaADC Communications (Thailand) Ltd.
    
    ThailandADC Communications (UK) Holding Ltd.
    
    United KingdomADC Communications (UK) Ltd.
    
    United KingdomADC Communications Hong Kong Limited
    
    Hong KongADC Connectivity Solutions LLC
    
    MinnesotaADC Czech Republic, s.r.o.
    
    Czech RepublicADC DSL Systems, Inc.
    
    DelawareADC EMEA Holding GmbH
    
    GermanyADC Europe N.V.
    
    BelgiumADC Global Holdings, Inc.
    
    MinnesotaADC GmbH
    
    GermanyADC Holding, Inc.
    
    DelawareADC Incorporated
    
    ColoradoADC Informationssysteme GmbH
    
    GermanyADC International Holding Company
    
    MinnesotaADC International Holding, Inc.
    
    DelawareADC International OUS, Inc.
    
    MinnesotaADC Italia S.r.l
    
    Italy




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Name
    
    JurisdictionADC Manufacturing Services PTY Limited
    
    AustraliaADC Metrica Ireland Limited
    
    IrelandADC OUS Holdings, LLC
    
    DelawareADC Optical Systems, Inc.
    
    DelawareADC Puerto Rico, Inc.
    
    Puerto RicoADC Services GmbH
    
    GermanyADC Soluciones de Conectividad, S.A.
    
    SpainADC Systems Integration France SAS
    
    FranceADC Telecom Canada Inc.
    
    CanadaADC Telecommunicacoes Industria e Comercio Ltda.
    
    BrazilADC Telecommunications (Africa) (Proprietary) Limited
    
    South AfricaADC Telecommunications (China) Limited
    
    Peoples Republic of ChinaADC Telecommunications (Scotland) Limited
    
    ScotlandADC Telecommunications (Shanghai) Distribution Co., Ltd.
    
    Peoples Republic of ChinaADC Telecommunications Australia Pty. Limited
    
    AustraliaADC Telecommunications Equipment (Shanghai) Co., Ltd.
    
    Peoples Republic of ChinaADC Telecommunications India Private Limited
    
    IndiaADC Telecommunications Netherlands B.V.
    
    NetherlandsADC Telecommunications Sales, Inc.
    
    MinnesotaADC Telecommunications Singapore Pte Limited
    
    SingaporeADC Telecomunicaciones Venezuela, S.A.
    
    VenezuelaADC Telecomunicacoes do Brasil Ltda.
    
    BrazilADC Wireless Solutions LLC
    
    MinnesotaADC de Delicias, S. de R.L. de C.V.
    
    MexicoADC de Juarez, S. de R.L. de C.V.
    
    MexicoADC de Mexico S.A. de C.V.
    
    MexicoCodenoll Technology Corporation
    
    DelawareANIHA Telecommunications Products Co., Ltd.
    
    Peoples Republic of China




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Name
    
    JurisdictionADC Chile Ltda.
    
    ChileKRONE Communications Ltd.
    
    IndiaKRONE Comunicaciones S.A. de C.V.
    
    MexicoKRONE Hellas Telecommunication S.A., Greece
    
    GreeceNihon ADC Kabushiki Kaisha
    
    JapanPT KRONE Indonesia
    
    IndonesiaPrinceton Optics, Inc.
    
    New JerseyLGC Wireless, Inc.
    
    DelawareLGC Wireless Telecomunicacoes Ltda.
    
    BrazilLGC Wireless Limited
    
    United KingdomLGC Wireless B.V.
    
    NetherlandsLGC Communication (Shenzhen) Ltd.
    
    Peoples Republic of ChinaLGC Wireless (Macau) Limited
    
    MacauLGC Wireless (M) SDN. BHD.
    
    MalaysiaPT. LGC Wireless Indonesia
    
    IndonesiaADC (Hong Kong) Holding Co., Limited
    
    Hong KongCommunication Expert International Investments Limited
    
    British Virgin IslandsShenzhen Century Man Communication Equipment Co,. Ltd.
    
    Peoples Republic of ChinaShenzhen Century Man Machinery Co. Ltd.
    
    Peoples Republic of China