Configures and performs a Power Spectral Distortion (PSD)
measurement using the calibration data previously acquired
for specified LAN pair, test port, and PVA instrument, and link
speed. Measurement may be either immediate or event
triggered. Configurations are retained in test port and in
PowerShell PSA software.
PSD measurements can be configured over a user selected
frequency range and will always return 33 discrete frequency
– amplitude (in dB) values.
trig off Configures measurement to start immediately upon
stat query. (Test Port wake-up default)
trig ext Configures measurement to start upon receipt of the
first Event Trigger following a stat query.
pair pairNo Specifies LAN PAIR to measure. Range is 1 to 4
where Pair 1 is TIA blue pair, Pair 2 is TIA orange pair, Pair
3 is TIA green pair, and Pair 4 is the TIA brown pair. If link
is 100BaseT, only Pair 2 or 3 may be specified and
depending on pair number, link will be forced to MDI_X or
MDI respectively. (This configuration is not maintained if
PSA Software is closed. PSA Software wake-up default =
3.)
link 100 Specifies a measurement using 100BaseT. (This
configuration is not maintained if PSA Software is closed.
PSA Software wake-up default.)
link 1000 Specifies a measurement using 1000BaseT. (This
configuration is not maintained if PSA Software is closed. )
start fstart Specifies start frequency for frequency response
analysis. Range is 0.02 MHz to 80 MHz. (This
configuration is not maintained if PSA Software is closed.
PSA Software wake-up default = 1 MHz.)
stop fstop Specifies end frequency for frequency response
analysis. Range is 0.2 MHz to 100 MHz. (This
configuration is not maintained if PSA Software is closed.
PSA Software wake-up default = 100 MHz.)
avg nAvgs Specifies the number of raw measurements to
average into each channel response coefficient. Range is
1 to 64. If fstart is less than 1 MHz, nAvgs must be between
48 and 64. (Test Port wake-up default = 10.)
timeout 10 specifies that an Event Triggered measurement
should time out if no trigger is received within 10 seconds
following stat query. (Test Port wake-up default)
timeout 100 specifies that an Event Triggered measurement
should time out if no trigger is received within 100 seconds
following stat query.
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