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8083XDS-AD Analog and SD-SDI XDS Encoder
Page 3-6
This will cause a line 21 field 1 caption waveform to be present whenever
line 21 field 2 caption waveform is present on the video consistent with
EIA-608-B rules. When the field 1 keyer has been forced on and upstream
Field 1 captions resume, the Field 1 Keyer will turn off again.
3.1.3
Status Indicator Lights
There are either six status indicators located on the front panel of the
8083XDS-AD. These show the operational status of the XDS encoder at a
glance. The meanings of all LEDs that are found on the front panel are as
follows:
SDI VIDEO IN
When lit, the XDS encoder has detected incoming
component digital video of the correct standard. When the LED
is flashing, SDI video is detected but the video standard is not
correct. When off, no incoming video has been detected at the
SDI VIDEO IN connector.
COMP VIDEO IN
When lit, the XDS encoder has detected incoming
composite analog video of the correct standard. When the LED
is flashing, there is a problem such as incorrect video standard,
or the video is of poor quality. The 8083XDS-AD may still be
able to insert XDS onto poor quality analog video, depending on
the severity of the problems. When off, no incoming video has
been detected at the ANALOG VIDEO IN connector.
FLD 1 ENABLE
FLD 2 ENABLE
Indicates that the device is inserting XDS information
into Field 2 of the video when lit.
Null characters will be inserted if there is no incoming data from
the communications ports, or if there is no upstream caption
information for the particular field when in "stream" mode.
The front panel message will display LINE 21 KEY when either
keyer is enabled.
COMM
Indicates that data is being received or transmitted on any of the
communications ports. The LED will also be on during the Test
Message
captioning/XDS software.
DATA OUT
Indicates that non-null data being received on one of the
communications port or from the upstream captions is being
inserted into the data queue for Field 2.
enabled, this data will be inserted on line 21.
3.1.4
Front Panel Operating Messages
The front panel display is used to indicate the current operating mode of
the XDS encoder as shown below. On some of the displays a period (.)
Revision 1.0.2
Mode
that
simulates
communications
with
When a keyer is
OPERATION
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