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DASDEC EAS Digital EAS
Encoder/Decoder and EAS Display Controller
By combining legacy EAS compatibility with modern LAN-based software driven communications methods and
technology, the PC-based DASDEC offers a unique solution to the problems faced in transitioning from an analog to an all-digital
broadcasting environment.
Furthermore, with the development and emergence of new network based public alerting schemes, the DASDEC system is designed to transition to meet new demands. Emergency alerting is becoming a managed network service. The DASDEC embodies this new environment with its inherent support for network protocols.
Optimized for emergency
operation center control rooms, cable and Telco-TV local headends,
broadcast control chains, NWS or NOAA offices, and in industrial,
office, or school locations, the DASDEC is a simple yet sophisticated
system. Remote access for setup, review, and operation of the system is
provided via a Web browser. The initial setup of the system, or
restoring the system to operation, requires far less time compared with
other EAS products and is verifiable at any point. Configurations can
also be saved onto and off of the box for backup or customization.
The system’s EAS alert
origination operation is supported through an intuitively designed Web
page. Encoding consists of a simple selection of EAS parameters from
pre-built lists, and playout of EAS alerts is accomplished by
user-operated GUI controls or GPI inputs.
The system offers several
advanced tools for manual alert forwarding, including
network-controlled GPI relays and user-programmable front panel audio
announcements to provide notification of unacknowledged and pending
unforwarded alerts. Additionally, the DASDEC features programmable
filters for blocking manual forward, an optional AES audio output
channel, third-party AES audio passthrough/override capability, and it
interfaces to broadcast digital video CG's.
A turnkey EAS system
consisting of an embedded PC in a custom chassis, the compact DASDEC is
configured for a standard 19-inch rack mounting in a 2-RU case. The
chassis houses three Web browser-tuned radio receivers for EAS monitoring
of AM, FM, or NOAA; an internal NTSC full screen character generator;
USB and network connections; balanced analog audio EAS override
switching; and optional AES alert audio output.
| Accessible |
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Remote
operation and status monitoring allow for easy central management of
multiple DASDEC platforms |
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Supports
second Ethernet interface via USB-Ethernet adapter or PCI |
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Connectable
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Wide variety
of character generator support: Utah Sci SqueezeMax, Evertz, Harris Iconstation, Chyron CODI, Miranda, XBOB4,
Sage Generic, Sage Newsroom, TFT Standard, NDU/ACM, VDS 830/840/Starmu, Envoy, and others. |
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Configurable,
automatic E-mail notifications upon alert origination, decode, forward, or test. |
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Three built-in, browser-tuned radio receivers for EAS monitoring
of AM, FM, or NOAA. |
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NTSC video output channel. |
Secure
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Supports
SSL-based https-password-protected login |
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Permissions
for multiple users with configurable access |
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SSH-based
data transfer |
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Internal
firewall |
Reliable
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LINUX OS -
LINUX dependability |
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DASDEC
software supports automatic restart for fully unattended operation |
Digital
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Supports EAS NET digital network alert forwarding
with streaming audio
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CAP network alert compatible (in development)
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Supports standards DVS-644 (SCTE-18) digital EAS for
Cable and DVS 168 (SA EARS) |
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All decoded
EAS audio captured as digital .WAV files for digital forwarding and
review/playback over a LAN |
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Optional
support for MPEG2 and MPEG4 video/audio encoding and IP streaming |
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Optional
support for AES/EBU audio output of alerts |
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| Economical |
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Embedded
PC design and software decoding minimizes custom hardware costs |
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Maintainable
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Upgrades and
mandated changes are easily downloaded and installed in the field via
the Web |
Expandable
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USB ports and
standard PCI slots for expansion hardware |
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Expanded
interface controls for a wide range of EAS-associated peripheral
equipment |
Precise
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Network Time
Protocol (NTP) supports clock synchronization to external server and
the NOAA atomic clock |
Compact
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Can be
operated headless (over a LAN) without monitor or keyboard |
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2 RU 19
inches wide, 14 inches deep |
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150 watts -
120VAC - 60Hz |
Compliant
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FCC Certified |
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FCC ID:
RV8DASDEC-1EN |
Robust
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Modular
hardware design makes any repairs easy |
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Modular
software design allows safe and easy upgrades |
Expansive
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Holds tens of
thousands of EAS events for simple access, review, replay, and print |
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We chose the DASDEC because it was the
only encoder/decoder that provides a digital and audio output channel
to send EAS alerts through our digital system. Additionally, the DASDEC
is easy to configure via a Web page, and the service organization
behind the product has been tremendous.
Ted Poe
Chief Engineer
IdahoPTV
LITERATURE
Trifold brochure of the DASDEC (PDF 255KB).
'The DASDEC BLOCK diagram' (PDF 94KB).
'Walk Around the BLOCK diagram - A glossary'; terms used in the DASDEC Block diagram (PDF 65KB).
PDF files require Adobe Reader
Link to APPLICATION NOTES
Link to HARDWARE NOTES
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