EAS 629 Dual Digital Insertion Unit GENERAL DESCRIPTION

EAS 629 Dual Digital Insertion Unit GENERAL DESCRIPTION
EAS 629 Dual Digital Insertion Unit
MODEL 629 DUAL DIGITAL INSERTION UNIT
FEATURES & BENEFITS
GENERAL DESCRIPTION
The EAS 629 Dual Digital Insertion Unit is a digital device that is transparent to two
•
Two independent channels for
two AES/EBU streams—
Primary and Secondary
•
Digital interrupt for AES/EBU
•
Transparent switching
•
Interoperability with all
current AES/EBU formats
including 32, 44.1, and
48 ks/s rates
•
Hardware bypass provides
signal paths even on loss of
power
•
Utilizes industry standard XLR
connectors which are easily
rerouted
•
Front panel status
indicators
AES/EBU digital audio streams and provides the capability of interrupting those
streams to insert other AES/EBU streams or analog audio sources. The EAS 629
contains two A-to-D converters that sense the sampling rate of the normal AES/EBU
input and digitizes and formats the analog interrupt input at the appropriate rate to
be delivered to the respective output.
SEAMLESS OPERATION
Because each section of the EAS 629 senses the incoming AES/EBU data streams
separately, it only switches between data blocks to eliminate the “pops” and “clicks”
that are normally associated with digital insertion. If the AES/EBU insert input is
used, the rate of the insert stream will match the normal stream rate.
SIGNAL DETECT
The EAS 629 supports all popular sampling rates, including 32, 44.1, and 48 ks/s. It
senses the incoming rate and is transparent to the data stream.
MINIMUM DELAY
Because every digital device inserted into an audio stream contributes delay, design care was exercised in the
Model 629 to minimize the amount of delay required. This eliminates delay build-up that results in separate processing feeds for live talent.
APPLICATIONS
•
•
•
•
•
EAS insertion into separate digital AES/EBU streams, both radio and TV
Insertion of emergency programming source into digital streams
Digital console input expansion
STL auto change-over between digital/digital and digital/analog systems
Insertion of remote pick-up into digital streams
REAR PANEL
Note: The Model 619 is a single stream version of the Model
629 and has the same specifications.
SPECIFICATIONS
FRONT PANEL
Control/Status
Indicators
+ 12 Vdc
Sync (status)
Normal (status)
Power (status)
Insert
Ground
(for each section)
Power
Normal
Insert
Synchronized
REAR PANEL
MECHANICAL AND ENVIRONMENTAL
AES/EBU
Normal In
Normal Out
Insert In
Analog
Insert (LEFT and RIGHT)
Connectors
XLR for both AES/EBU and Analog
Dimensions…..….19 x 1.75 x 12 (inches)
483 x 44.45 x 305 (mm)
Weight……………....4 lbs. (1.8 kg) (net)
8 lbs. (3.6 kg.) (shipping)
AC Power Requirements
120/240 VAC 50/60 Hz
40 Watts
Operating Temperature…..…0° to +50° C.
Sound Quality Since 1970
1953 Concourse Drive, San Jose, California 95131-1708 U.S.A.
Telephone: +1-408-943-9323 Fax: +1-408-432-9218
http://www.TFTInc.com
9500-0605C 0702.001M
Contents subject to change without notice.
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