PVA-3000 Reference Manual
December 2, 2019 Sifos Technologies
4.13. PowerShell Multi-Pair Measurement Utilities
Multi-Pair measurement utilities are provided to automate the sequencing of measurements such as PSD, SNR,
Wideband Return Loss (Echo), and Wideband Crosstalk (Xtalk) across pairs or pair groups on a given PVA Test
Port. PSD and SNR measurements will be specified for either 100BaseT (2 pairs) or 1000BaseT (4 pairs) while Bulk
Return Loss and Bulk Crosstalk are restricted to just 1000BaseT link-ups.
link 100 | link 1000 <start fstart> <stop fstop> <avg nAvgs>
<plot <color>>
Slot,Port +
{Pair No +
(READY +
Start_Freq + dB +
End_Freq + dB +
Max_dB_Freq +
Max_dB +
Min_dB_Freq +
Min_dB)
| UNLINKED
…
Pair No +
(READY +
Start_Freq + dB +
End_Freq + dB +
Max_dB_Freq +
Max_dB +
Min_dB_Freq +
Min_dB)
| UNLINKED }
Perform 1000BaseT (4-Pair) or 100BaseT (2-Pair) PSD
measurements and report power levels and frequencies for
Start_Freq, End_Freq, Max_dB, Min_dB. 2-Pair 100BaseT
completed by connecting both MDI and MDI-X. Utility will first
verify presence of all required calibrations.
link 100 Produce 2-pair (MDI & MDI-X) PSD measurements
for 100BaseT link-ups.
link 1000 Produce 4-pair PSD measurements for 1000BaseT
link-ups.
start fstart Specifies non-default start frequency for frequency
response analysis. Range is 0.02 MHz to 80 MHz. Default
is 1 MHz.
stop fstop Specifies non-default end frequency for frequency
response analysis. Range is 0.2 MHz to 100 MHz. Default
is 100 MHz.
avg nAvgs Specifies non-default number of averages to use
in measurement. Range is 1 to 64. Default is 16. nAvgs
must be between 48 and 64 if fstart < 1 MHz.
plot Produce graphical frequency vs power plots of each
pair’s PSD measurement. Must use PowerShell WISH for
this feature. Will erase any previously displayed PSD plots.
color assign a non-default graph color scheme of classic, sky,
rain, sand, desert, or mellow. Specify pair to configure
default, pair-specific color scheme.
link 100 | link 1000 <avg nAvgs>
Slot,Port +
{Pair No +
(READY + SNR)
| UNLINKED
…
Pair No +
(READY + SNR)
| UNLINKED}
+ AVG_SNR
Generate 1000BaseT (4-Pair) or 100BaseT (2-Pair) average
and present individual pair SNR readings. 2-Pair 100BaseT
completed by connecting both MDI and MDI-X.
link 100 Produce 2-pair (MDI & MDI-X) SNR measurements
for 100BaseT link-ups.
link 1000 Produce 4-pair SNR measurements for 1000BaseT
link-ups.
avg nAvgs Specifies non-default number of averages to use
in measurement. Range is 1 to 64. Default is 8.
Slot,Port +
{Pair No +
(READY + Echo)
| UNLINKED
…
Pair No +
(READY + Echo)
| UNLINKED}
+ AVG_Echo
Generate 1000BaseT (4-Pair) average and individual pair
Bulk Return Loss readings. Only available in 1000BaseT link-
ups. Utility will first verify presence of all required
calibrations.
avg nAvgs Specifies non-default number of averages to use
in measurement. Range is 1 to 64. Default is 8.
Slot,Port +
{Pair Group +
(READY + Xtalk)
| UNLINKED
…
Pair Group +
(READY + Xtalk)
| UNLINKED}
+ AVG_Xtalk
Generate 1000BaseT (6-PairGroup) average and individual
pair Bulk Crosstalk readings. Only available in 1000BaseT
link-ups. Utility will first verify presence of all required
calibrations.
avg nAvgs Specifies non-default number of averages to use
in measurement. Range is 1 to 64. Default is 8.