User manual

Example
How many real-time transfers can be processed over a GigE network if I work with Avid
DNxHD® 100Mbps in NTSC, and if the maximum GigE bandwidth on my network is
65MB/s?
Calculation: Maximum GigE bandwidth / Actual Bandwidth = real time transfers
65MB/s / 13.33MB/s = 4.8 real time transfers.
Important Recommendations
• For 6-channel configuration, maximum bitrates for Avid DNxHD® or Apple ProRes
422 should be 220Mbps (NTSC) or 185Mbps (PAL).
• When using the Avid DNxHD® codec, we advise to work at 100Mbps if the picture
quality is satisfactory so that the XS can sustain 6 local channels + 5 network
transfers.
Backup Transfers
The maximum transfer speeds through the Gigabit ports of the XS server are summarized
in the following table:
Codec
Field
Rate
Video
Bitrate
RT
Transfers
Transfer Speed
(faster than RT)
Apple ProRes LT 50.00
Hz
85
Mbps
6 6.2x
Avid DNxHD®
HD MJPEG EVS/Standard
HD MPEG2 Intra
AVC Intra 100
DVCPro HD
50.00
Hz
100
Mbps
6 5.3x
Avid DNxHD®
Apple ProRes 422
50.00
Hz
120
Mbps
5.8 4.6x
Avid DNxHD®
Apple ProRes 422 HQ
59.95
Hz
185
Mbps
4.8 3.8x
32 4. Software Specifications
EVS Broadcast Equipment S.A. Issue 11.02.A July2013