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  • BSI
    BS 8521-2:2020 Social alarm systems. IP signalling protocols - Specification for NOW-IP
    Edition: 2020
    $411.69
    / user per year

Description of BS 8521-2:2020 2020

This British Standard specifies requirements for the transfer of information and control signals between social alarm equipment used in specialized group living environments and alarm receiving centres (ARCs).

It provides for the establishment of a common signalling protocol over a public or private IP network to ensure that social alarm systems from different manufacturers exchange essential information and controls in a compatible manner.

This British Standard specifies a protocol for point-to-point transmission of alarms, faults, control signals and communications monitoring using the Internet Protocol (IP) to enable communication of the following:

  1. alarm information;

  2. speech path and system control commands;

  3. selection of local units in grouped equipment;

  4. request for information on outstanding calls;

  5. speech control functions;

  6. equipment control functions;

  7. programming;

    • parameter programming;

    • parameter remote enquiry; and

  8. streaming media, e.g. voice.

NOTE 1 The alarm protocol is intended for use over any network that supports the transmission of IP data with sufficient quality of service to support VoIP.

NOTE 2 The alarm protocol is defined as an XML scheme including the alarm types, codes and necessary additional information.

The alarm protocol is an application layer protocol using another IP as a transport protocol to handle addressing and transport functions. The transport protocol initially defined in this standard is Session Initiation Protocol (SIP).



Standard NumberBS 8521-2:2020
TitleSocial alarm systems. IP signalling protocols - Specification for NOW-IP
StatusDefinitive
Publication Date2020-04-30
DescriptorsSocial alarm systems, Alarm systems, Messages, Signals, Control signals, Information transfer
ICS13.320 Alarm and warning systems
CommitteeGW/1
ISBN978 0 539 05021 9
PublisherBSI
Pages32

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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