{"id":344474,"date":"2024-10-20T00:11:40","date_gmt":"2024-10-20T00:11:40","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-8521-22020\/"},"modified":"2024-10-25T23:34:11","modified_gmt":"2024-10-25T23:34:11","slug":"bs-8521-22020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-8521-22020\/","title":{"rendered":"BS 8521-2:2020"},"content":{"rendered":"<p>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).<\/p>\n<p>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.<\/p>\n<p>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:<\/p>\n<ol style=\"list-style-type:lower-alpha\">\n<li>\n<p>alarm information;<\/p>\n<\/li>\n<li>\n<p>speech path and system control commands;<\/p>\n<\/li>\n<li>\n<p>selection of local units in grouped equipment;<\/p>\n<\/li>\n<li>\n<p>request for information on outstanding calls;<\/p>\n<\/li>\n<li>\n<p>speech control functions;<\/p>\n<\/li>\n<li>\n<p>equipment control functions;<\/p>\n<\/li>\n<li>\n<p>programming;<\/p>\n<ul>\n<li>\n<p>parameter programming;<\/p>\n<\/li>\n<li>\n<p>parameter remote enquiry; and<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>streaming media, e.g. voice.<\/p>\n<\/li>\n<\/ol>\n<blockquote>\n<p>NOTE&nbsp;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.<\/p>\n<blockquote>\n<p>NOTE&nbsp;2 The alarm protocol is defined as an XML scheme including the alarm types, codes and necessary additional information.<\/p>\n<\/blockquote>\n<p>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).<\/p>\n<\/blockquote>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>4<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>5<b><\/td>\n<td>Introduction <br \/> 1 Scope  <\/td>\n<\/tr>\n<tr>\n<td><b>6<b><\/td>\n<td>2 Normative references <br \/> 3 Terms, definitions and abbreviations  <\/td>\n<\/tr>\n<tr>\n<td><b>8<b><\/td>\n<td>4 Alarm and status messages <br \/> 4.1 General requirements <br \/> 4.2 Alarm transmission message format  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>Table 1 \u2014 Configuration system type <br \/> Table 2 \u2014 Speech link type <br \/> Table 3 \u2014 Three-digit codes for alarm events  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>Table 4 \u2014 Location code assignments  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>Table 5 \u2014 Priority code assignments <br \/> Table 6 \u2014 Status code assignments  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>4.3 System configuration assignment <br \/> 4.4 System type assignments <br \/> 4.5 Event code assignments <br \/> 4.6 Location code assignments <br \/> 4.7 Priority code assignments <br \/> 4.8 Status code assignments <br \/> 4.9 Speech path and system control commands <br \/> 4.10 Speech control functions  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>4.11 Equipment control functions <br \/> Table 7 \u2014 Equipment control functions  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>4.12 Programming  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>Table 8 \u2014 Parameter programming number  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>4.13 Parameter remote enquiry <br \/> 5 Suitability of Session Initiation Protocol (SIP) and SIMPLE  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>5.1 Security <br \/> 5.2 Implementation of BS 8521 alarm signalling over IP transport  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>Table 9 \u2014 Transmission messages  <\/td>\n<\/tr>\n<tr>\n<td><b>22<b><\/td>\n<td>Table 10 \u2014 Message format  <\/td>\n<\/tr>\n<tr>\n<td><b>23<b><\/td>\n<td>Figure 1 \u2014 Alarm with media stream <br \/> Figure 2 \u2014 Alarm without audio  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>Table 11 \u2014 Transmission messages  <\/td>\n<\/tr>\n<tr>\n<td><b>28<b><\/td>\n<td>Table 12 \u2014 Programming data element  <\/td>\n<\/tr>\n<tr>\n<td><b>29<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Social alarm systems. IP signalling protocols &#8211; Specification for NOW-IP<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2020<\/td>\n<td>32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":344477,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-344474","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/344474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/344477"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=344474"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=344474"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=344474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}