Publisher : IEC

IEC 60839-7-12 Ed. 1.0 b:2001 PDF

Alarm systems - Part 7-12: Message formats and protocols for serial data interfaces in alarm transmission systems - PTT interfaces for dedicated communications channels using ITU-T Recommendation V.23 signalling

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IEC 60839-7-2 Ed. 1.0 b:2001 PDF

Alarm systems - Part 7-2: Message formats and protocols for serial data interfaces in alarm transmission systems - Common application layer protocol

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$221.00
IEC 60839-7-20 Ed. 1.0 b:2001 PDF

Alarm systems - Part 7-20: Message formats and protocols for serial data interfaces in alarm transmission systems - Terminal interfaces employing ITU-T Recommendation V.24/V.28 signalling

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IEC 60839-7-3 Ed. 1.0 b:2001 PDF

Alarm systems - Part 7-3: Message formats and protocols for serial data interfaces in alarm transmission systems - Common data link layer protocol

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$89.00
IEC 60839-7-4 Ed. 1.0 b:2001 PDF

Alarm systems - Part 7-4: Message formats and protocols for serial data interfaces in alarm transmission systems - Common transport layer protocol

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$51.00
IEC 60839-7-5 Ed. 1.0 b:2001 PDF

Alarm systems - Part 7-5: Message formats and protocols for serial data interfaces in alarm transmission systems - Alarm system interfaces employing a two-wire configuration in accordance with ISO/IEC 8482

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IEC 60839-7-6 Ed. 1.0 b:2001 PDF

Alarm systems - Part 7-6: Message formats and protocols for serial data interfaces in alarm transmission systems - Alarm system interfaces employing ITU-T Recommendation V.24/V.28 signalling

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IEC 60839-7-7 Ed. 1.0 b:2001 PDF

Alarm systems - Part 7-7: Message formats and protocols for serial data interfaces in alarm transmission systems - Alarm system interfaces for plug-in alarm system transceivers

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$51.00
IEC 60840 Amd.1 Ed. 5.0 en:2023 PDF

Amendment 1 - Power Cables With Extruded Insulation And Their Accessories For Rated Voltages Above 30 KV (Um= 36 KV) Up To 150 KV (Um = 170 KV) - Test Methods And Requirements

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IEC 60840 Cor.1 Ed. 5.0 b:2021 PDF

Corrigendum 1 - Power cables with extruded insulation and their accessories for rated voltages above 30 kV (Um= 36 kV) up to 150 kV (Um = 170 kV) - Test methods and requirements

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