{"id":520157,"date":"2024-11-05T14:57:55","date_gmt":"2024-11-05T14:57:55","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/csa-iso-iec-1731104-r2019\/"},"modified":"2024-11-05T14:57:55","modified_gmt":"2024-11-05T14:57:55","slug":"csa-iso-iec-1731104-r2019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/csa\/csa-iso-iec-1731104-r2019\/","title":{"rendered":"CSA ISO\/IEC 17311:04 (R2019)"},"content":{"rendered":"<p><strong>Scope<\/strong><\/p>\n<p>This International Standard defines the mapping functions in exchanges of Private Integrated Services Networks (PISNs) required for the utilization of scenarios in which 64 kbit\/s circuit mode connections are sub-multiplexed into one 16 kbit\/s channel for carrying inter-PINX signalling and 6 x 8 kbit\/s channels for carrying inter-PINX user information.<\/p>\n<p>NOTE 1 &#8211; This International Standard has been prepared to meet the specific needs of an application for a particular user organisation. However, it may also be applicable elsewhere. In order to connect a Private Integrated Services Network Exchange (PINX) to another PINX, mapping functions are required to adapt the specific interfaces at the C reference point to the application at the Q reference point.<\/p>\n<p>As such, mapping functions provide for physical adaptation to the interface at the C reference point. Mapping functions also provide for the mapping of user channels and signalling information at the Q reference point to the appropriate channels or timeslots at the C reference point. The C and Q reference points are defined in ISO\/IEC 11579-1.<\/p>\n<p>The type of interface at the C reference point covered by this International Standard is the 64 kbit\/s Unrestricted Digital Leased Line (D64U) Terminal Equipment Interface, in accordance with ITU-T Rec. G.703. At the Q reference point the mapping provides an 8 kbit\/s service for user channels to support the transfer of unrestricted digital information and to support the transfer of speech, and a 16 kbit\/s packet mode service for the signalling channel.The applied mapping is a static mapping, i.e. there is a fixed relationship between user and signalling channels at the Q reference point and the interface at the C reference point. Management functions relating to failure management are outside the scope of this International Standard.<\/p>\n<p>This International Standard is applicable to PINXs that can be interconnected to form a Private Integrated Services Network (PISN) and that support signalling protocols at the Q reference point.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Information Technology &#8211; Telecommunications and Information Exchange Between Systems &#8211; Private Integrated Services Network &#8211; Mapping Functions for the Employment of 64 kbit\/s Circuit Mode Connections with 8 kbit\/s Sub-Multiplexing<\/b><\/p>\n<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\/csa\/\"><b>CSA<\/b><\/a><\/td>\n<td>2004-12-01<\/td>\n<td>25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":520167,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[599,2674],"product_tag":[],"class_list":{"0":"post-520157","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-040-35","7":"product_cat-csa","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/520157","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\/520167"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=520157"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=520157"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=520157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}