EVS XT-3 Technical Reference

Bandwidth and RT Channels at 180Hz (NTSC Super Motion
3x)
Codec
Video
Bitrate
Fields
/Block
Actual
Bandwidth
Max. RT
Channels
Avid DNxHD®
Apple ProRes LT
85
Mbps
15 31.97 MB/s 9.38
Avid DNxHD®
HD MJPE EVS/Standard
HD MPEG2 Intra
AVC Intra 100
DVCPro HD
100
Mbps
12 39.96 MB/s 7.50
Avid DNxHD®
Apple ProRes 422
145
Mbps
9 53.28 MB/s 5.63
Avid DNxHD®
Apple ProRes 422 HQ
220
Mbps
6 79.92 MB/s 3.75
Real-Time Channel Calculation
Rule
The maximum server bandwidth depends on the disks. Based on the assumption that
Seagate disks of 300 GB (10K5) are used in 4+1 raids, the disks will be able to write 300
MB/s, and the maximum server bandwidth is therefore 300 MB/s.
For a mixed configuration with standard and super motion channels on the same EVS
server, the following calculation must be used to ensure that the settings do not exceed
the maximum bandwidth of the server, that is to say 300 MB/s:
(nbr of standard channels x their actual bandwidth)
+ (nbr of super motion channels x their actual bandwidth)
Example with Standard and Supermotion Channels
Can I run an XT3 server with 2 record channels (1 super motion + 1 standard) + 2 play
channels (1 super motion + 1 standard) in Avid DNxHD® with a video bitrate of 100Mbps
in PAL ?
Calculation:
• 1 standard rec/play at 100Mbps uses 13.3 MB/s
• 1 super motion record/play at 100Mbps uses 40.0 MB/s
• All channels will use: 2 x 13.3 + 2 x 40.0 = 126.6 MB/s.
Conclusion: this configuration is supported as it is lower than 300 MB/s.
22 4. Software Specifications
EVS Broadcast Equipment S.A. Issue 11.02.A July 2013

EVS XT-3 Specifications

General

Brand	EVS
Model	XT-3
Category	Server
Language	English