Instruction manual

HDE-3000 - 35 -
The HDE3000 is a full featured HD/SD caption encoder, so it has many more
video input options, caption decoding/encoding options, and “transcoding” options.
The following sections describe how to configure the HDE3000 for several different
scenarios. The caption data that the HDE3000 transmits to the MPEG encoder is
the exact same caption data that the HDE3000 displays on the VGA monitor.
Scenario 1: HD video input with VANC captions
This is the simplest scenario for the HDE3000. Just make sure the HDE3000
is not encoding (the “encoding” LED on the front panel is not lit), and it will
decode the existing EIA608 and EIA708 captions from the input video and
transmit them to the MPEG Encoder.
Scenario 2: SD video input with VANC captions
The HDE3000 must be configured to decode the VANC captions from the SD
input video (as opposed to decoding the line 21 captions from the SD input
video) using menu “2.4 SD DECODER MODE”. Then just make sure the
HDE3000 is not encoding (the “encoding” LED on the front panel is not lit), and it
will decode the existing EIA608 and EIA708 captions from the input video and
transmit them to the MPEG Encoder.
Scenario 3: SD video input with Line 21 captions and no VANC captions
The HDE3000 must be configured to decode the line 21 captions from the SD
input video (as opposed to decoding the VANC captions from the SD input video)
using menu “2.4 SD DECODER MODE”.
If the HDE3000 is not encoding, (the “encoding” LED on the front panel is not
lit), then the HDE3000 will only decode the EIA608 caption from the SD input
video and transmit them to the MPEG encoder.
To up-convert (or “transcode”) the EIA608 captions to EIA708 and transmit
both EIA608 and EIA708 captions to the MPEG encoder:
1. In the menu “4.1 EIA-608 SETUP”, field 1 and/or field 2 must be set to
“REENCODE”. This will make the HDE3000 encode (and light the “encoding”
LED on the front panel).
2. In the menu “5.2 NTSC VANC LINES SETUP”, the “NTSC VANC Encoder”
must be set to “ENABLED”. This will turn on the transcoders so that the
EIA608 captions will be up-converted to EIA708.
Additionally, the “TRANSCODER SETUP” menus (7.1 and 7.2) must be
configured to transcode the desired EIA608 services to the desired EIA708
services.
Once the HDE3000 is configured properly as described above, it will read the
EIA608 line 21 captions from the input video, up-convert them to EIA708, and
transmit the EIA608 and EIA708 captions to the MPEG encoder.