J-STD-042 : B2013

1 Scope
2 Overview
3 Normative References
  3.1 Normative Reference List
  3.2 Normative Reference Acquisition
4 Emergency Alert Message (Normative)
  4.1 Descriptors
5 Emergency Alert Message Processing for Terminal
  Devices (Normative)
  5.1 Message Processing
  5.2 Processing Overlapping EA Events
6 Additional Requirements (Normative)
  6.1 Overlapping Messages are Allowed
  6.2 The EA message may be Repeated to Ensure its Reception
  6.3 Digital Transport Streams with Free Services
  6.4 In-band Emergency Alert messages
  6.5 Tuning to the Details Channel
7 Optional Processing (Informative)
  7.1 Alert Originator Code and Event Code
  7.2 Alert Event Start Time and Duration
  7.3 Alert Location Information
8 Time Shifted Emergency Alerts (Informative)

Describes an Emergency Alert (EA) signaling method for use by cable TV systems to signal emergencies to digital terminal devices that are offered for retail sale.