Visionary - Hardware Installation and Configuration Manual
9
Chapter 2
2.
Understanding the Visionary
What Does the Visionary HD/SD Overlay System Do?
The Visionary HD/SD Overlay System enables broadcasters to present emergency alert
messages, graphics, and station identification logos on digital broadcasts. The Visionary works
with Trilithic’s EASyCAST encoder/decoder to provide EAS messaging and logos for HD-SDI
and SD-SDI broadcast programming (1080i, 720p, and 480i), including embedded audio and six
channels of AES-EBU audio.
The Visionary receives EAS alerts from the encoder/decoder and places them on a broadcast
channel as a message crawl, with EAS audio. The Visionary also allows broadcasters to display
station logos and other event-specific graphics with broadcasted EAS message alerts.
The Visionary can display non-EAS messages as a crawl, static text, image, full-page graphic, or
a combination of text and images. If a broadcaster needs to display maintenance messages –
even from a remote location – the message can be presented on the broadcast channel using the
Visionary system. Non-EAS messaging is generally handled using a PC and the Visionary Editor
software.
The Visionary connects to the EASyCAST encoder/decoder via an Ethernet connection. A single
encoder/decoder can communicate with multiple Visionary devices on a network. Broadcasters
can place a Visionary on each program channel and only have to maintain and program a single
EASyCAST encoder/decoder to distribute EAS messages.
Introduction
This section includes an overview and description of the Visionary HD/SD Overlay System,
including front and rear panel controls, connectors, and displays. Visit
www.trilithic.com
to view or
download updates, manuals, and application notes for Trilithic EAS products.
The Visionary is available in two formats: high-definition (HD) and standard definition (SD). The
HD version supports both high and standard definition video. The following part numbers are
unique to each of the Visionarys:
Visionary HD SDI (high-definition) -
P/N 2011186002
Visionary SD SDI (standard-definition) -
P/N 2011186001