ANSI SCTE 162:2019 pdf free download – Emergency Alert Signaling for the Home Network
For IPTV services in the United States, Alliance for Telecommunications Industry Solutions (ATIS) IPTV Interoperability Forum (IIF) has published a set of specifications for the delivery of EAS signaling and content to consumer devices. ATIS-0800010, Emergency Alert Provisioning Specification [4] provides a system-level description of EAS functionality in the IPTV network, including required functionality of consumer-domain IPTV devices. ATIS-0800012, IPTV Emergency Alert System Metadata Specification [1], specifies the associated EAS metadata in XML format. The EAS signaling and content are delivered via IP multicast on an ATIS IIF-compliant IPTV network spanning from the SP to multiple ATIS IIF-defined IPTV Terminal Function (ITF) devices in the home. The ATIS XML schema for EAS is based on CAP v1.1 [5], with additions and exceptions as needed for the IPTV application and signaling to consumer devices. ATIS IIF includes a PTF block in its high level architecture to allow connectivity to a home network. As described in the ATIS IIF High Level Architecture [3] specification, a PTF includes ITF functionality and can reside on any device in the home network. ATIS IIF specifications do not address the functionality of the PTF. Protocols defined by ATIS IIF specifications provide delivery of IPTV services, including audio/video and emergency alerts, to ITF devices in the home. Independently, using the same home network physical infrastructure, commercial audio/video and emergency alerts may be delivered to client devices in the home via standard protocols such as those being defined by the Digital Network Living Alliance (DLNA) using devices compliant with such guidelines and following the recommendations given in the present document.
Note that Figure 1 shows that in the case of commercial video arriving via terrestrial broadcast, separate EAS signaling data is not available for distribution to the home network. However the audio/video contents from terrestrial broadcast sources might be placed on the network. A viewer watching any consumer device capable of receiving and processing an off-air terrestrial broadcast signal (directly or over a local home network) has access to all emergency alert information and announcements simply by viewing program video and listening to program audio. As of the date of publication of this standard, there is no standard method for signaling emergency alert information in a machine-readable format within DTV terrestrial broadcast.
3.2 Public Alert™ Receivers
Readers should be aware that ANSI/CTA2009-B [6] defines minimum performance criteria for consumer electronic products designed to receive Specific Area Message Encoding (SAME) alert signals broadcast by the National Oceanic and Atmospheric Administration’s Weather Radio network and Environment Canada’s Meteorological Services of Canada Radio network. ANSI/CTA2009-B lists a number of alert Event Codes that may be encountered that are not available from other sources. As defined by FEMA, the designated responsible government office for EAS, Specific Area Message Encoding is simply a category title. SAME consists of approximately 2200 FIPS codes (and 1200 equivalent codes in Canada called CFIPS) which define geographic targeting data.