Astrodesign VG-879 - SDI Data Transfer Method

Chapter 4 Digital Output Settings (DIGITAL OUTPUT)
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4.3.3 SDI data transfer method
● SD-SDI and HD-SDI signals
The signals are output from the BNC connectors without being
split.
● SMPTE372M (DUAL LINK)
Assigns to outputs 1 and 2 (3 and 4) is performed from the
lowest slot number to output as follows.
BNC terminal
Signal name
CH1
Output 1 (3) LINK A
CH2
Output 1 (3) LINK B
CH3
Output 2 (4) LINK A
CH4
Output 2 (4) LINK B
● 3G-SDI signal
The signals are output from the BNC connectors without being
split.
● 4K 3840ｘ2160 (4096ｘ2160) signals
[VM-1876-M5]
The signals are mapped to 3G-SDI or mapped to SMPTE372M
(DUAL LINK) and then output.
[VM-1876-MB]
The signals are mapped in accordance with various standards
to 3G-SDI/6G-SDI/12G-SDI or mapped to HD-SDI and then
output.
The mapping method is as follows.
Mode 0 ４Square Division (4 quarter panes)
The 3840ｘ2160 format which cannot be represented with the
resolution of an HD-SDI signal is split into 4 quarter panes and
then output.
Mode A 2-sample interleave division (2SI)
The 3840ｘ2160 format which cannot be represented with
the resolution of an HD-SDI signal is split as follows and
then output.
3
1
00
4
21
01
2 1
04
21
05
2
3 4 3 43 4
3
1
20
4
21
21
2 1
24
21
25
2
3 4 3 43 4
1
00
1
01
1
04
1
05
1
20
1
21
1
24
1
25
Example: When channel 1 output
Images containing a collection of groups (pixels classified by
color) consisting of 2 pixels and 2 lines are output.
Output channels 1 to 4 output the data as images containing a
collection of ① to ④.
The signals that were split in this way are mapped to 3G-SDI
and then output.
Lane 1-4 Lane 9-12
Lane 5-8 Lane 13-16