Cisco Headend Digital Broadband Delivery System Maintenance Manual
Emergency Alert System Process
4004455 Rev G
3
Note: The in-band and out-of-band OpenCable processes are also shown in the
following diagram.
following diagram.
7 The devices react to the EAM in one of the following manners, depending on the
type of device and whether force tuning is used:
Set-tops (no force tune): Read the EAM and display a banner with the alert
text. The set-top then reads the audio file (if present) and plays the audio
associated with the alert.
text. The set-top then reads the audio file (if present) and plays the audio
associated with the alert.
Set-tops (with force tune): Tune to the designated channel that displays the
alert text and (if present) audio associated with the alert.
alert text and (if present) audio associated with the alert.
CableCARD modules (no force tune): Displays a banner with the alert text.
CableCARD modules (with force tune): Tune to the designated channel that
displays the alert text.
displays the alert text.