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NUCOMM DEBUTS THE MESSENGER IP ENCAPSULATOR/DECAPSULATOR
SYSTEM AT HD WORLD 2007
October 12, 2007
Source: Nucomm
Nucomm, Inc., a leading provider of digital
and analog microwave systems for the broadcast industry, common
carrier, cable, government, military and international marketplace,
showcased its new Messenger IP Encapsulator/Decapsulator at
HD Word 2007.
The Nucomm Messenger system enables broadband IP connectivity
between an ENG truck or OB Van and the broadcast studio. Designed
to support today’s emerging, distributed news editing
workflows, the Nucomm Messenger makes it easier for television
news stories to be edited in the field and delivered to the
studio over alternative networks.
With an IP network in place, other applications, such as remote
queuing and remote truck control, can also run between the
studio and the ENG vehicle. The Nucomm Messenger can be used
in trickle or broadband mode. In trickle mode, live video
and IP traffic are sent simultaneously; the live video reduces
the IP traffic to a rate in the range of 100 kbps to 1 Mbps.
The Messenger does this transfer by replacing null packets
with IP packets. In the broadband mode, nearly the entire
link is dedicated to IP traffic. The user either turns off
the MPEG encoder or removes the video source to the encoder,
creating a transport stream nearly full of null packets. In
this mode, the Encapsulator responds automatically to the
changing network conditions.
A complete Nucomm Messenger system consists of a 1 RU Encapsulator
and a 1 RU Decapsulator. IP data from the news gathering vehicle
to the studio flows through the existing ENG / OB infrastructure.
The outbound IP traffic enters the Messenger IP Encapsulator.
The IP traffic is encapsulated into the MPEG stream from the
MPEG encoder in the ENG transmitter. The resulting ASI stream,
containing the IP data and video data, returns to the ENG
microwave transmitter, where it is transmitted back to the
studio.
The Nucomm Messenger is one in a series of products introduced
by Nucomm to support the migration of television broadcasters
to digital electronic news production.
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