User's Manual

Chapter 16 Test Results
DSL Results
SmartClass TPS User’s Guide
May 2014 22035456, Rev 001 123
In the saved test report, two additional statistics are included:
– Start Time is the time (time of day) when the DSL modem achieves Showtime. The Start time
is updated if you clear errors.
– Stop Time is the time (time of day) when the report is generated or DSL sync is lost.
Bonded DSL statistics (For Catalogs CSC-TPSVW and CSC-TPSVW-CU only)
For bonded mode, the same results are shown, but the bonded results are separated into different
screens:
– Group - results for both pairs combined
– Pair 1 or Pair 2 - Same results as the non-bonded screen, except the title.
Signal
This category provides statistics for the signal. Table 21 describes the DSL Summary results.
Max Rate Maximum upstream and downstream connection
rates
32 kB–3.3 MB
a
(Up)
32 kB–25 MB
a
(Dn)
64 kB–50 MB (Up)
b
64 kB–150 MB (Dn)
b
Capacity The percentage of total bandwidth currently used by
the actual connect rate upstream and downstream.
0–100%
Actual Margin SNR margin upstream and downstream 0–63.5 dB
ATN The degradation of signal strength in dB upstream
and downstream. It is the differ-ence in Tx power from
the transmitter to receiver.
0–126.95 dB (VDLS2)
0–254.9 dB (ADLS2)
Sync Time The elapsed time (duration) since reaching Showtime. n/a
a. These are ADSL2 rates.
b. These are VDSL2 rates.
Table 21 DSL Signal results
Result Description
Sync Count The number of synchronization attempts. it is possible that modems do not syn-
chronize immediately and make multiple attempts before achieving synchroniza-
tion.
Trained Path Whether the modems trained with the FAST or INTLV (interleaved) path.
Loop Length The estimated loop length.
a
Vectoring Status V-Configure, V-Full, V-Trigger, V-Running, V-Disabled,
Multiple V-Disabled, V-Unconfigd, V-Unknown
Signal
SATN Signal attenuation. Attenuation average of the bins/tones that contain the actual
signal (empty bins are not included).
Table 20 DSL Summary results (Continued)
Result Description Range