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2.3
POWER REQUIREMENTS
2.4
CONNECTING THE DIGITAL VIDEO
INSTALLATION
Models 8084/8084AD/8085 Closed Caption Encoder Manual
The Caption Encoder has one or two universal power supplies that
automatically sense the input voltage. (The redundant supply is optional.)
It can operate on either 115 Volt / 60 Hz or 230 Volt / 50 Hz AC.
Power should be applied by connecting a 3-wire grounding type power
supply cord to the power entry modules on the rear panel. The power cord
should be minimum 18 AWG wire size; type SVT marked VW-1, maximum
2.5 m in length. The power entry module combines a standard power inlet
connector, two 5 x 20 mm fuse holders and an EMI line filter.
CAUTION - TO REDUCE THE RISK OF ELECTRIC SHOCK, GROUNDING
OF THE GROUND PIN OF THE MAINS PLUG MUST BE MAINTAINED
2.4.1
SDI Video Input
The 8084 and 8085 require a digital video source to be connected to the
SDI video input. The 8084AD does not require an SDI video source when
composite video is selected as the caption source.
The unit accepts either 525 or 625 line digital video in the component
(4:2:2) format. Set the VIDEO TYPE parameter on the front panel menu to
match the video input. (See section 3.2.1 for information on changing the
video type setting.)
The 8084 has LEDs labeled 525 and 625 VIDEO IN on the front panel,
these indicate which input is active and if there is video present. When
either LED is blinking it indicates that there is no video present. The
8084AD has a single LED labeled SDI VIDEO IN. When it is on steady,
there is SDI video present. When it is flashing, there is a problem such as
incorrect video standard selected. When the LED is off, no input SDI video
has been detected.
2.4.2
SDI Video Output
The two SDI outputs contain the input video with closed caption data keyed
in. The SDI BYPASS OUT output is bypass protected in case of power
failure or operator override. Normally this output should be used for the
main program output of the caption encoder. A second non-bypassed
output (SDI PREVIEW OUT) may be connected for preview applications.
When the Bypass relay is active, this output contains no video signal. The
Bypass relay will be activated on power failure and when the Bypass Relay
GPI is closed to ground. It may also be manually activated using the front
panel menus. The Fault Tally Output will be open circuit when the caption
encoder is processing video normally, and will be grounded when the
bypass relay is activated.
Revision 1.6.6
Page 2-5
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