What Is Dual Link - Sony SRW-9000 Operation Manual

What Is Dual Link?

When the optional HKSR-9001 and HKSR-9003
are installed, this unit supports Dual Link output
of RGB 4:4:4 and 4:2:2 50P/60P format HDSDI
signals in addition to normal Single Link output.
The following lists the differences between
Single Link and Dual Link, and explains what
you can do with HDSDI signal output by them.
Refer also to the table showing the available
HDSDI formats with Single Link and Dual Link
on the unit.
Single Link
Single Link enables output of HDSDI signals
over a single BNC cable.
The unit can handle 4:2:2 (Y/Cb/Cr)/1080/
23.98PsF to 29.97PsF (59.94i) HD signals. The
HD SDI OUT A and HD SDI OUT B connectors
output the same signals. The number of pixels is
1920 × 1080.
HD SDI formats supported by the SRW-9000
Format
Frame rate
Effective frame size
HD SDI IN/OUT A
HD SDI IN/OUT B
SMPTE
PsF: Progressive Segmented Frames
i: Interlace
P: Progressive
166 What Is Dual Link?
Single Link
4:2:2 YCbCr
30/1.001 PsF
25 PsF
24 PsF
24/1.001 PsF
60/1.001 i
50 i
×
1920 1080
Y channel Y
C channel CbCr
Y channel
C channel
292M
Dual Link
Dual Link enables input and output of HD SDI
signals over two BNC cables.
With Dual Link, you can do the following.
• Handle different color spaces
Dual Link allows you to expand color
difference signals to RGB. When the optional
HKSR-9003 is installed, the unit can handle
4:4:4(RGB)/1080/ 23.98PsF to
29.97PsF(59.94i) HD signals.
When you do this, all of the G component and
half of the B and R components are output via
the HD SDI OUT A connector. The other half is
output via the HD SDI OUT B connector.
HD SDI OUT A = G/0.5 ×B'/0.5 ×R'
HD SDI OUT B = None/0.5 ×B"/0.5 ×R"
• Increase the number of frames
Dual Link allows you to double the number of
frames to 4:2:2 60P.
HD SDI OUT A = Even lines/Odd lines
(alternating on each frame)
HD SDI OUT B = Odd lines/Even lines
(alternating on each frame)
Note
In the SMPTE-372M 4:2:2 60P standard, the active lines
of digital field 2 are different between Link A and Link
B (Link A: line 584 to 1123, Link B: line 583 to 1122).
Dual Link
4:4:4 RGB
30/1.001 PsF
25 PsF
24 PsF
24/1.001 PsF
60/1.001 i
50 i
1920 × 1080
G
0.5B/0.5R
–
0.5B'/0.5R'
372M
4:2:2 YCbCr 60P
60/1.001 P
50 P
1920 × 1080
Y
CbCr
Y
CbCr
372M