Automated Ethernet-APL Power & Data Conformance Testing
(Budget for Load/Sensor)

Telebyte’s Ethernet-APL Universal Test Setup supports PD Load ports with one setup for Ethernet-APL Conformance and Interoperability Data and Power testing. The small footprint saves valuable laboratory test space while the fully automated approach saves time and money and provides repeatable test results. The solution is easy to use, allowing tests to be performed by technicians with minimal training. There is no need to plug/unplug different instruments and fixtures in the test setup. Additional features include automated software for controlling DUTs and all test equipment. The software generates Pass / Fail Reports for Ethernet-APL Conformance Power and Data tests. A customer’s PC with a serial and network connection is used to transfer data to the PC for post processing the captured Ethernet signal with Telebyte’s Test Automation Software. Customers may purchase all integrated test setup instruments from Telebyte. Please note this same setup (with the addition of a DC programmable load) can be used for testing PSE switches. An optional switch matrix is available for switching in of multiple DUTs in a test bed. 

Required equipment:

Telebyte 4950 10BASE-T1L Channel Emulator
Telebyte SPE Test Automation Software
Telebyte 4950-P01 Probe
Telebyte 4925 Reference Link Partner
10BASE-T1L Reference Link Partner
AEM MMVNA 8-Channel Vectored Network Analyzer
Keysight E36232A Programmable Power Supply
Keysight EL33133A DC Electronic Load
Siglent SDS2104X Digital Storage Oscilloscope
Siglent SDG6022X Arbitrary Waveform Generator (AWG)
Keysight KT-34465A Truevolt Digital Multimeter
Download Application Note

Ethernet Conformance Data and Power Test List

Ethernet-APL Data Test Specification v1.5.6 
Group 1: Transmitter Electrical Measurements 
Test APL.146.1.1 – Transmitter Output Voltage (Test Mode 1) 
Test APL.146.1.2 – Transmitter Output Droop  (Test Mode 2) 
Test APL.146.1.3 – Transmitter Timing Jitter (Test Mode 1) 
Test APL.146.1.4 – Transmitter Power Spectral Density (PSD) and Power Level (Test Mode 3) 
Test APL.146.1.5 – Transmit Clock Frequency (Test Mode 1) 
Test APL.146.1.6 – MDI Return Loss (Part A: Tx disabled: DUT in Slave, high Z state) 
Test APL.146.1.6 – MDI Return Loss (Part B: Test Mode 3 VNA with narrowband IF of 100Hz) 
Test APL.146.1.7 – Transmitter Distortion (Test Mode 2) with 1MHz Sinusoidal Disturber at 1.0Vpp and/or 2.4Vpp 
Group 2: Receiver Electrical Measurements 
Test APL.146.2.1 – Receiver Packet Error Rate Stress Test 
     Noise includes 
    AWGN @ -106dBm/Hz 
    Power-line Ripple Noise components 
         100mV at 1kHz and 10kHz, 10mV at 100kHz and 1MHz, and 
         100mV at 10kHz falling 20dB per decade to 10mV at 100kHz swept    
    Ethernet-APL Appendix F – 1.0Vpp Spur & 2.4Vpp Trunk Worst-Case Whole Communication Channel 
    Traffic Testing – Link Quality SNR better than 20dB, DUT Passing BER < 10-9 
Group 3: Transmit Packet Formation 
Test APL.146.3.1 – Transmit Signaling 
Group 4: Receive Error Handling 
Test APL.146.4.1 – Automatic Polarity Detection and Correction 
Test APL.146.4.2 – Handling of Received ESD_ERR4 
Test APL.146.4.3 – Handling of Received CRC Errors 
Section 98: Ethernet-APL Clause 98 Auto-Negotiation Validation 
Group 1: Auto –Negotiation Basic Tests for Ethernet-APL 
Test APL.98.1.1 – Advertisement and Auto-Negotiation Verification 
 Part A: DUT advertises valid capabilities
 Part B: DUT links with compatible link partner
 Part C: DUT spur port when LP advertises but does not request increased transmit level
 Part D: DUT behavior with incompatible link partner (spur to trunk, trunk to spur)
 Part E: DUT behaves  properly with incompatible link partner (spur to trunk, trunk to spur)
 Part F: DUT behavior when link partner prefers master or slave port role (M/S is always 0).
 Part G: DUT behavior when link partner forces master or slave port role (M/S is always 1).
Test APL.98.1.2 – Management Restart of Auto-Negotiation 
Test APL.98.1.3 – Link Status Fail 
Test APL.98.1.4 – DME Voltage Envelope Test     
Test APL.98.1.5 – Auto-Negotiated Link-Up Time     
Ethernet-APL Power Test Specification v1.4
​​​​TL.1 Power Tests 
TL.1.1 Minimum Current Draw   Minimum Supply Voltage 28.8 V
TL.1.1 Minimum Current Draw   Maximum Supply Voltage 50V
TL.1.2 Inrush Current
TL.2 Electrical Characteristics
TL.2.1 Differential In-Band Ripple and Noise  
TL.2.2 Differential Out-Band Ripple and Noise 
TL.2.3 Current Derivatives    
TL.2.4 Current Events Maximum Supply Voltage 50V
TL.2.5 Under Voltage Current
TL.3 General Port Requirements
TL.3.1 Terminal and Connectors
TL.3.2 Shielding Options*
TL.3.3 Polarity Sensitivity Mode A + / –
TL.3.3 Polarity Sensitivity Mode B – / +
SL: Spur Power Load Ports – Segment ‘S’; Port ‘L’
SL.1 Power Tests
SL.1.1 Minimum Current Draw   Minimum Supply Voltage UPL(min) Class A=9V ClassC =10.6V
SL.1.1 Minimum Current Draw  Maximum Supply Voltage UPL(min) Class A and C = 15V
SL.1.2 Inrush Current
SL.2 Electrical Characteristics
SL.2.1 Differential In-Band Ripple and Noise Maximum Supply Voltage UPS(max) Class A and C = 15V
SL.2.1 Differential In-Band Ripple and Noise Minimum Load Voltage UPL(min) Class A=9V ClassC =10.6V
SL.2.2 Differential Out-Band Ripple and Noise Maximum Supply Voltage UPS(max) Class A and C = 15V
SL.2.2 Differential Out-Band Ripple and Noise Minimum Load Voltage UPL(min) Class A=9V ClassC =10.6V
SL.2.3 Current Derivatives     Maximum Supply Voltage UPS(max) Class A and C = 15V
SL.2.3 Current Derivatives    Minimum Load Voltage UPL(min) Class A=9V ClassC =10.6V
SL.2.4 Current Events Minimum Load Voltage UPL(min) Class A=9V ClassC =10.6V
SL.2.4 Current Events    Maximum Supply Voltage UPS(max) Class A and C = 15V
SL.2.5 Under Voltage Current
SL.3 General Port Requirements
SL.3.1 Terminal and Connectors
SL.3.2 Shielding Options*
SL.3.3 Polarity Sensitivity  Mode A + / –
SL.3.3 Polarity Sensitivity Mode B – / +

* External DMM required (KT-34465A direct measurement)