Configuration – EXFO VDSL2 User Manual
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Auto CQ/Video-DSL Rate Prediction
46
AXS-200/635
Configuring Video-DSL Rate Prediction
Configuration
The Configuration tab allows you to 
define the desired number of streams 
and allocated bit rate per stream 
before running the test.
Each parameter is described below:
³
No Of Streams is the number of 
High Def. (definition) streams, 
ranging from 0 to 4 and Std. 
(standard) Def. streams ranging 
from 0 to 10.
³
Stream Rate (Mbps) is the High Def. (HD) and Std. Def. (SD) stream 
rate before running the test, ranging from 0 to 24 Mbps. Default values 
are 8 Mbps for HD and 1 Mbps for SD.
³
Non-Video Data Rate (Mbps) is a data rate of non-video data typically 
used by high-speed internet and VoIP services. Rates range from 
0 to 24 Mbps. Default value is 1 Mbps.
³
Annex defines the modes of available ADSL Annexes from the 
ITU standards.
³
A is ADSL service functioning over POTS.
³
B activates the ADSL functionality over ISDN.
³
L Mask 1 assumes an increase in ADSL2 range/distance.
³
L Mask 2 also extends the signal reach but can show an 
improvement in the upstream data rate.
³
M allows increased upload speeds from 1 Mbps to 3.5 Mbps. 
Available only for ADSL2 and ADSL2+.