XNet Transfers
The maximum number of real-time channels between EVS servers through the SDTI ports
of the XT3 server are summarized in the following table.
The following tables take into account a field rate of 50.00 Hz, and the resolution 1080i,
without SLSM REC, and the following reference bandwidths:
•
an SDTI network of 1.5 Gbps, with a maximum bandwidth of 110 MB/s
•
an SDTI network of 3 Gbps, with a maximum bandwidth of 200 MB/s.
Note
The transfer speed in real-time for a single A/V stream is 10% lower compared
to the number of real-time transfers.
For example, a single transfer will be processed 15.2x faster than real-time for
XDCAM HD, and around 8.7x faster than real-time for Apple ProRes 422 LT.
Codec
Field
Rate
Video
Bitrate
(Mbps)
Block-
Based
Bandwidth
(MB/s)
RT
Transfers
(1.5G SDTI)
RT
Transfers
(3G SDTI)
XDCAM HD
50.00 Hz
50
6.5
16.7
30.5
Apple ProRes 422
LT
50.00 Hz
85
11.4
9.6
17.5
HD Mjpeg Standard
50.00 Hz
100
33.3
3.3
6.0
HD Mpeg-2 Intra
50.00 Hz
100
33.3
3.3
6.0
DVCPro HD
50.00 Hz
100
12.9
8.5
15.5
AVC Intra 100
50.00 Hz
111
13.3
8.2
15.0
Avid DNxHD® 120
50.00 Hz
120
14.8
7.4
13.5
Apple ProRes 422
SQ
50.00 Hz
120
16.6
6.6
12.0
Avid DNxHD® 185
50.00 Hz
185
22.2
4.9
9.0
Apple ProRes 422
HQ
50.00 Hz
185
25.0
4.4
8.0
HARDWARE TECHNICAL REFERENCE MANUAL XT3 Server 12.05
4. Software Specifications
33
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