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Alarm systems. Social alarm systems - Interconnections and communications. Original standard BS EN 50134-5-2021 in PDF full version. Additional info + preview on request

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Alarm systems. Social alarm systems - Application guidelines. Original standard BS EN 50134-7-2017 in PDF full version. Additional info + preview on request

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Alarm systems. Alarm transmission systems and equipment - General requirements for alarm transmission systems. Original standard BS EN 50136-1-2012 + A1-2018 in PDF full version. Additional info + preview on request

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Alarm systems. Alarm transmission systems and equipment - Requirements for Supervised Premises Transceiver (SPT). Original standard BS EN 50136-2-2013 + A1-2023 in PDF full version. Additional info + preview on request

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Alarm systems. Alarm transmission systems and equipment - Requirements for Receiving Centre Transceiver (RCT). Original standard BS EN 50136-3-2013 + A1-2021 in PDF full version. Additional info + preview on request

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Cables for signs and luminous-discharge-tube installations operating from a no-load rated output voltage exceeding 1000 V but not exceeding 10000 V. Original standard BS EN 50143-2009 in PDF full version. Additional info + preview on request

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