Running DSL/IP Tests and Viewing Results
392
MAX-635G
DSL Statistics
Sync loss count
is the number of times the unit lost synchronization.
Vector State
for single VDSL2 connection mode is
Active
/
Not Active
and for G.fast mode is always
Active
. When
Active
, the VCE (vector
control entity) + DSLAM asks the CPE for noise samples. The VCE uses
the noise samples to calculate the level of FEXT (far end crosstalk) and
to calculate the solution to mitigate the effects of FEXT.
KL0
displays the attenuation that the system calculated during the
determination of UPBO (Upstream Power Back Off) requirements as
an estimated electrical length of its loop.
EWL
is the estimated wire length and is based on the
KL0
.
Rate Adaptation
mode (GVXAA and GVXAB models only) displays the
following in Manual and Auto Test:
SRA
(seamless rate adaptation) which adjusts the rate according to
the current line conditions. Received and transmitted counters are
shown, for example SRA(DS/US).
FRA
(fast rate adaptation) which enables rapid (<1 ms)
reconfiguration of the data rate. Received and transmitted
counters are shown, for example FRA(DS/US).
N/A
means none used.
Performance Counters
-
Local
/
Remote
G.INP RTX_TX
is the number of frames retransmitted by the
transmitter. The
Local
number is what is retransmitted from the
CPE to the DSLAM. The
Remote
value is what is retransmitted from
the DSLAM to the CPE.
Note:
The RTX_TX number may contain retransmits not requested by the receiver
(that is, the retransmission request channel got corrupted and a
retransmission was sent automatically) resulting in an incremental value
even though the same frame ID was retransmitted multiple times.
Summary of Contents for MAX-635G
Page 1: ...User Guide Copper and G fast VDSL2 ADSL2 Multi play Test Set MAX 635G www EXFO com ...
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Page 270: ...TDR 260 MAX 635G Continuous Examples of Common Faults Short Fault ...
Page 271: ...TDR Copper and G fast VDSL2 ADSL2 Multi play Test Set 261 Continuous Open ...
Page 272: ...TDR 262 MAX 635G Continuous Bridged Tap ...
Page 273: ...TDR Copper and G fast VDSL2 ADSL2 Multi play Test Set 263 Continuous Splice Joint ...
Page 274: ...TDR 264 MAX 635G Continuous Peak Function ...
Page 275: ...TDR Copper and G fast VDSL2 ADSL2 Multi play Test Set 265 Continuous Dual Trace View ...
Page 276: ...TDR 266 MAX 635G Continuous Load Coil ...
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