Sifos Technologies PhyView PVA-3000 User Manual

PVA-3000 Reference Manual
December 2, 2019 Sifos Technologies
Page
133
Test
Purpose
Output
Transmission
Assessment
 Assess low (50KHz) and high (62 MHz) frequency
Power Spectral Distortion at 100Base-Tx and/or
1000Base-T on one transmission pair each.
 Provide Peak-Peak Voltage (estimate) for
100Base-Tx and/or 1000Base-T on one
transmission pair each.
 Measure Wideband Return Loss on alternative
transmission pair at 1000Base-T only.
SUMMARY
(GOOD | MARGINAL | FAIL)
Vpk-pk (pair N | M, volts)
PSD (pair N | M, 50KHz, dB)
PSD (pair N | M, 62MHz, dB)
Return Loss (pair M | N, dB)
Receiver Assessment
 Assess Link Stability in the presence of the highest
tested link rate, for example, at 1000Base-T if 1000
was specified as a test rate or at 100Base-Tx if
specified link rates were 10 and 100. Link stability
is measured with a combination of Worst Case
802.3 insertion loss on either one (10/100Base-T)
or all (1000Base-T) pairs as well as ingress noise
and jitter levels that are just above the levels
allowed for the link rate tested. Levels utilized are:
Type
10Base-T
100Base-Tx
1000Base-T
Insertion
Loss
Pair M
(local Tx)
Pair M
(local Tx)
All Pairs
Noise
+10.5 dB
+4 dB
+1 dB
Jitter
+17 dB
+10 dB
+0 dB
SUMMARY
(GOOD | MARGINAL | FAIL)
Rx Integrity (0 – 100%)
More details regarding the actual pva_veriphy command and associated arguments in presented in Section 4.17.
6.4.2. pva_veriphy Reporting
The pva_veriphy automated test program returns a standard ASCII text formatted table that can be further processed by
a calling Tcl/Tk script,
and it can also be
recorded to a user-
specified data file.
Figure 6.1 depicts a
nominally performing
device-under-test
where 6 ports are
tested at 10, 100, and
1000Base-T. The
Initial Check-Out
report indicates that all
line rates linked
correctly, were stable
with 802.3 worst case
link insertion loss, and
that SNR measured on
pair 3 was ideal (36
dB) at both 100 and
1000Base-T. The
Transmitter Check test
indicates that Peak-Peak voltages, low frequency PSD, high frequency PSD, and wideband return loss are all within
acceptable margins for 100Base-Tx and 1000Base-T on pairs 3 and 2. Note that with a DUT declared as “DTE”, SNR,
100Base-Tx PSD, and 100Base-Tx Vpk-pk are
reported on Pair 3 while 1000Base-T PSD,
1000Base-T Vpk-pk, and Wideband Return
Loss are reported on Pair 2. Finally, the Rx
Integrity test was performed at 1000Base-T and
indicates no DUT Rx error indications under
conditions the 1000Base-T impairments
describe above in Section 6.4.1.
Figure 6.2 presents a nominal test report from
testing 6 ports of a 10/100Base-T Ethernet
device. Note that test time per port was 79
Figure 6.1 6-Port 10/100/1000Base-T Nominal Test Report
Figure 6.2
6-Port 10/100Base-T Nominal Test Report

Sifos Technologies PhyView PVA-3000 Specifications

General

Brand	Sifos Technologies
Model	PhyView PVA-3000
Category	Measuring Instruments
Language	English