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Alarm systems. Intrusion and hold-up systems - Alarm verification. Methods and principles. Original standard PD CLC TS 50131-9-2014 in PDF full version. Additional info + preview on request

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Alarm systems. Social alarm systems - IP Communications Protocol. Original standard PD CLC TS 50134-9-2018 in PDF full version. Additional info + preview on request

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Alarm systems. Alarm transmission systems and equipment - Requirements for remote access. Original standard PD CLC TS 50136-10-2022 in PDF full version. Additional info + preview on request

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Alarm systems. Alarm transmission systems and equipment - Application guidelines. Original standard PD CLC TS 50136-7-2017 in PDF full version. Additional info + preview on request

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Alarm systems. Alarm transmission systems and equipment - Requirements for common protocol for alarm transmission using the Internet Protocol (IP). Original standard PD CLC TS 50136-9-2020 in PDF full version. Additional info + preview on request

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Railway applications. Fixed installations. Particular requirements for AC switchgear - AC metal-enclosed traction switchgear. Original standard PD CLC TS 50152-4-2021 in PDF full version. Additional info + preview on request

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