This part of ISO\/IEC 16500 provides a toolbox consisting of lower layer protocols and physical interfaces. Each<\/p>\n
tool is applicable at one or more of the reference points within the delivery system. The physical delivery media<\/p>\n
that have been identified for this version of ISO\/IEC 16500-4 are copper pairs, coaxial cable, microwave, fiber<\/p>\n
and satellite. Removable information carrying physical media (e.g. optical discs and tapes) are not covered. The<\/p>\n
tools listed address the three parts of the delivery system, namely, the core network, the access network and the<\/p>\n
access-network-independent interface to the Set Top Unit (STU). Tools are also identified for the STU dataport<\/p>\n
interface and for a service provider system (SPS) internal network and an SPS\/SPS core network.<\/p>\n
Clause 6 specifies in detail the tools provided to digitize the physical media in the core network. In the case of a<\/p>\n
broadband core network, all these tools support high speed ATM transport. Clause 7 specifies in detail the tools<\/p>\n
provided to digitize the physical media in the access network (copper pairs, coax, satellite, microwave, fiber). All<\/p>\n
these tools support high speed MPEG-2-TS transport and\/or high speed ATM transport. Clause 8 concerns the<\/p>\n
access-network-independent interface to the STU and provides a detailed specification of the physical interfaces<\/p>\n
between the network interface unit (NIU) and the STU. This physical interface can be internal or external to the<\/p>\n
Set Top Box (STB) and is independent from the physical interface used in the access network. It supports the<\/p>\n
transport of MPEG-2-TS and ATM between NIU and STU. Clause 9 concerns the STU dataport interface and<\/p>\n
specifies the physical interfaces used to connect an STB to various peripheral devices. It defines normative STU<\/p>\n
multimedia dataport tools and interfaces and also includes informative specifications for both PC and parallel<\/p>\n
dataports. These interfaces support the transport of MPEG-2-TS or IP. Clause 10 defines the physical interfaces<\/p>\n
for interconnections between cascaded SPS entities with or without an intervening core network and the physical<\/p>\n
interfaces for networks used to connect various hosts within an SPS.<\/p>\n","protected":false},"excerpt":{"rendered":"
Information technology \u2014 Generic digital audio-visual systems \u2014 Part 4: Lower-layer protocols and physical interfaces<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n ISO<\/b><\/a><\/td>\n 1999-12<\/td>\n 252<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":633454,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[661,2634],"product_tag":[],"class_list":{"0":"post-633440","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-35-040-40","7":"product_cat-iso","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\/633440","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\/633454"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=633440"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=633440"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=633440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}