PVA-3000 Reference Manual
December 2, 2019 Sifos Technologies
The PhyView Analyzer
offers a powerful
combination of
impairments that place
realistic stresses on
10/100/1000BaseT
receivers while
measurements such as Link
Monitor or Packet Flow are
being performed. Many of
these impairments can be
applied asymmetrically so
that the port-under-test
experiences impairment
that the PhyView Analyzer
test port does not, thus
assuring that link instability
is fully attributable to the
port-under-test.
Physical impairments offered within each PVA test port include:
ď‚· Line Loss: Simulated worst case IEEE 802.3 cabling system insertion loss
 Mismatch: Fixed –12 dB Return Loss
ď‚· Alien Crosstalk: Frequency-contoured ingress noise with programmable level
ď‚· Tx Clock Offset: Offset transmit signal timing with 6 programmable settings
ď‚· Tx Clock Jitter: Phase-noise vs frequency contoured transmit jitter with programmable level
ď‚· Tx Level: Transmit signal amplitude with programmable level
ď‚· Tx Slew: Transmit signal slew rate with programmable rise time
These impairments are each discussed with greater detail in Section 2.2.
Most of the impairments are independent in that they may be combined. For example, an outgoing 100BaseT transmit
pair may have the Line Loss impairment coupled with Alien Crosstalk, Tx Clock Jitter, low Tx Level, and low Tx
Slew. Combinations of impairments such as these are very effective at driving bit error rate levels into regions where
they can be efficiently characterized and accurate comparisons between different ports can be made in a short period of
time.
The fully automated PHY Performance Test Suite addressed in Section 5 has a set of receiver tests that take full
advantage of the impairments and receiver testing metrology to perform comprehensive analysis of 10/100/1000BaseT
receivers in a several minutes and without any user intervention.
1.3.14. Reference Manual Overview
The remainder of this manual will familiarize users with the various resources available within each test port and the
various means of accessing and using those resources for link configurations, impairment configurations,
measurements, calibrations, and fully automated test suites.
Section 2 will introduce basic test port architecture, describe each testing resource in detail, discuss PVA software
components, and present technical specifications for the PhyView Analyzer.
Section 3 will present the PVA Interactive graphical user interface application available for intuitive and interactive
control of the PhyView Analyzer. It will include some sample exercises to help familiarize users with common tasks.
Section 4 will review PowerShell PSA, the live command line control and script automation environment for the
PhyView Analyzer and for all PowerSync Analyzer instruments from Sifos Technologies.
Section 5 will cover the fully automated PHY Performance Test Suite for 10/100/1000BaseT Ethernet port testing.
This optionally configured test suite makes multi-port PHY testing and analysis a one-button-click task with colorful,
graphical reporting including test limits for excellent versus marginal versus non-compliant parameter performance.
Transmitter, interface, and receiver tests are included in this test suite.
Finally, Section 6 will provide some additional information for users that must automate testing with the PhyView
Analyzer and need tips for integrating with other software environments and/or making tests more efficient.
Figure 1.17 Packet Error Yield with Impairments
0
100
200
300
400
500
600
700
800
1.0E-12 1.0E-11 1.0E-10
BER
Seconds
100BaseTx 1518Byte Pkts
1000BaseT 1518Byte Pkts
Time to Packet Error vs Impairment
add
Alien
Cross-
talk
Lower
Level,
Slew
add
Jitter,
Offset
Line
Loss
Impair
0
100
200
300
400
500
600
700
800
1.0E-12 1.0E-11 1.0E-10
BER
Seconds
100BaseTx 1518Byte Pkts
1000BaseT 1518Byte Pkts
Time to Packet Error vs Impairment
add
Alien
Cross-
talk
Lower
Level,
Slew
add
Jitter,
Offset
Line
Loss
Impair
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