Powered Device Analyzer: A Family of PD Testers

Configurable Instruments & Software for Testing PoE Powered Devices. What do you need in a PD Tester?


802.3bt & 802.3at Verification
of Type-1, Type-2, Type-3, and Type-4 PD's
802.3at Verification of Type-1 and Type-2 PD's

Test Suites & Options

Automated 802.3at and 802.bt (PDA-604A) Conformance Verification
Conf Test Icon
PoE LLDP Emulation and Analysis for 802.3at and 802.3bt (PDA-604A) PD's
LLDP Emulation

Type-2, Type-3, Type-4 PSE Emulation

Feature Keys Scale the PDA-602B or PDA-604A to the Optimum Price-Performance Level

Powered Device Analyzer

The One-Box solution for 802.3 PD verification including flexible emulation of PSE behaviors, scaleable feature configurations, and plug’n’play testing using a Windows PC.



Emulate all Type-1 and Type-2 PSE’s, powering 2-pairs upt to 41W at all PD input voltages.  Optionally supports 802.3at PD Conformance Test Suite and LLDP emulations. 

Watch a Video Demonstration of the PDA-602A

Key Features

PDA Software Features

By default, all of the Powered Device Analyzer Instrument purchases come with access to control the interaction with a PD using either a GUI or a Shell. Whichever format you choose, the standard software includes:

Key Features

  • Powerful Script Automation with Interactive Command Console
  • Binary API Library for Microsoft Windows

PSA Interactive

  • Connection and Polarity Management
  • One-Click Detection and Classification Signature Measurements
  • One-Click Power Sourcing and Power-Up Emulation
  • Multi-Event Power Grants
  • Limit-Checked Streaming Traces and Load Monitor Functions
  • Immediate and Event-Triggered Waveform Captures
  • Classification, Power-Up, Power-Down, and Transient Event Triggers
  • Voltage, Current, Power, and V+I Trace Options
  • Programmable Duration & Sample Resolution

PowerShell PDA Software

  • Extensive Interactive Command Language Built Upon Tcl/TK
  • Supports Interactive Test Script Generation and Debugging
  • Access to All Configuration and Metering Resources
  • Single Command Measurements and Traces
  • High Level Command Access to Test Suites
  • Extensive Documentation and Built-In Command Help

PD Conformance Test Suite

Sifos Technologies offers the ultimate simplicity in testing a PD’s conformance to IEEE Standards with Pass/ Fail reporting in the PD Conformance Test Suite available for purchase with the PDA-600 Family of  Instruments.

General Features

  • Configure Mode / Polarity Quadrants
  • Select Passive and/or Powered Tests
  • Configure PD Input Voltages and Power-On Dwell Times
  • Assess Power Compliance to PD Classification
  • Assess Power Demotion Behaviors
  • Configure and Sequence 1 or more Test Cycles

802.3at PD's (Type-1, Type-2)

  • Emulate Type-1 and Type-2* PSE's
  • Assess Signatures from Mode A/B, MDI/MDI-X Quadrants
  • Assess 802.3at Average, Peak, Tcut Window, MPS Power Thresholds
  • Demote Type-2 PD's to Type-1 PSE Powering
  • Assess 802.3at LLDP Protocol & Power Draw Compliance

* Requires Type-2 feature license

Open Sample Report

802.3bt PD's (Type-3, Type-4)

  • Emulate 15W, 30W, 60W*, and 90W* PSE's
  • Assess Signatures including 802.3bt Multi-Event Class Signatures from Mode A/B, MDI/MDI-X Quadrants
  • Assess 802.3bt Average, Peak, Tcut Window, MPS Power Thresholds
  • Demote Type-3, and Type-4 PD's to Type-1 and Type-2 PSE Powering
  • Assess 802.3bt LLDP Protocol & Power Draw Compliance

* Requires Type-3/4 feature license

Open Sample Report

LLDP Emulation

The IEEE 802.3 specifications require that Type 2, Type 3, and Type 4 PDs implement PoE LLDP and use the Power via MDI TLV for power negotiation. This requirement  therefore applies to any PD that draws more than 13 watts.  The PDA-600 family includes an option to flexibly emulate any PSE while capturing and analyzing the LLDP power negotiation protocol from a PD.

  • Flexibly Emulate 802.3at Type-1/Type-2 PSE's and Power Allocations
  • Flexibly Emulate 802.3bt Type-3/Type-4 PSE's and Power Allocations (classes 1-8)
  • Emulate PSE Protocol Timing including delayed allocations
  • Informative, 802.3at and 802.3bt Limit-Checked Excel Spreadsheet Protocol Traces
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