Power over Ethernet Consortium Clause 33 PD Conformance Test Suite v 1.5 Report UNH-IOL — 121 Technology Drive, Suite 2 — Durham, NH 03824 — (603) 862-0090 Consortium Manager: Gerard Nadeau — [email protected] — (603) 862-0116 Dilian Reyes Linear Technology 1630 McCarthy Blvd Milpitas, CA 95035 20-Sep-2005 Report Rev. 1.0 Enclosed are the results from the Clause 33 PD Conformance testing performed on: Device Under Test (DUT): Hardware Version: Firmware Version: Software Version: DUT PD Chip: DUT Magnetics: Miscellaneous: Linear Technology LTC4267EDHC Not Available Not Available Not Available Linear LTC4267 Pulsejack JK0-0044 Demo Circuit 804A The test suite referenced in this report is available at the UNH-IOL website: ftp://ftp.iol.unh.edu/pub/ethernet/test_suites/CL33_PD/PD_Test_Suite_v1.5.pdf No issues were uncovered during Clause 33 PD conformance testing. Testing Completed 09/12/2005 iol David Schwarzenberg [email protected] Digitally signed by UNH-IOL Date: 2005.09.2 7 12:38:24 -04'00' Review Completed 09/27/2005 Zachary Clifton [email protected] Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Digital Signature Information This document was created using an Adobe digital signature. A digital signature helps to ensure the authenticity of the document, but only in this digital format. For information on how to verify this document’s integrity proceed to the following site: http://www.iol.unh.edu/certifyDoc If the document status still indicates “Validity of author NOT confirmed”, then please contact the UNH-IOL to confirm the document’s authenticity. To further validate the certificate integrity, Adobe 6.0 should report the following fingerprint information: MD5 Fingerprint: 8664 5701 3DC2 368A 0CC0 A1D7 792C D70C SHA-1 Fingerprint: BF96 86A2 E723 9795 C8EA B9F8 1E10 BF22 1D61 3CE4 Result Key The following table contains possible results and their meanings: Result PASS PASS with Comments FAIL Warning Informative Refer to Comments Not Applicable Not Available Borderline Not Tested Interpretation The Device Under Test (DUT) was observed to exhibit conformant behavior. The DUT was observed to exhibit conformant behavior however an additional explanation of the situation is included, such as due to time limitations only a portion of the testing was performed. The DUT was observed to exhibit non-conformant behavior. The DUT was observed to exhibit behavior that is not recommended. Results are for informative purposes only and are not judged on a pass of fail basis. From the observations, a valid pass or fail could not be determined. An additional explanation of the situation is included. The DUT does not support the technology required to perform these tests. Due to testing station or time limitations, the tests could not be performed. The observed values of the specified parameters are valid at one extreme, and invalid at the other. Not tested due to the time constraints of the test period. UNH-IOL PoE Consortium 2 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Test Setup Testing Equipment Testing Software Real-time DSO Current Probe and Amplifier Digital Multimeter Digital Power Supply UNH-IOL PDGUI_v2.2 TEKTRONIX, TDS 3014 TEKTRONIX, TPS305 and TPSA300 HEWLETT-PACKARD, 34401A AGILENT TECHNOLOGIES, E3641A Testing Configuration A 1 meter Category 5 Digital Power Supply TEST BOARD DUT GPIB ` MultiMeter GPIB Custom MATLAB Scripts And Post Processing Testing Configuration B 1 meter Category 5 Digital Power Supply TEST BOARD DUT GPIB Current Probe Current Amplifier ` DSO GPIB Custom MATLAB Scripts And Post Processing UNH-IOL PoE Consortium 3 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC GROUP 1: PARAMETRIC TESTING Test # and Label 33.1.1 – PD Source Power Expected Results and Procedural Comments Part(s) a Result(s) PASS Using Testing Configuration A, verify that the DUT does not source power on its PI for either mode A and B. a. The DUT should not source power on its PI at any time. Comments on Test Results a. The DUT was observed to not source power on either of its two sets of PI conductors. Test # and Label 33.1.2 – PD Pinout Expected Results and Procedural Comments Part(s) a Result(s) PASS Using Testing Configuration A, verify that the DUT is insensitive to the polarity of the power supply and is able to operate in either Mode A or Mode B. a. In all cases the DUT should accept the applied power and become operational once the requested power has been supplied. Comments on Test Results a. The DUT became operational when power was applied to Mode A (MDI and MDI-X), or Mode B (MDI and MDI-X). UNH-IOL PoE Consortium 4 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Test # and Label 33.1.3 Valid PD Detection Signature Part(s) a b Result(s) PASS PASS Expected Results and Procedural Comments Purpose: To verify that the DUT presents a valid detection signature while it is requesting power on the PI. a. b. The observed signature resistance should between 23.75 and 26.25 kΩ (inclusive). The DUT should have either a voltage offset less than or equal to 1.9 V, or a current offset less than or equal to 10 µA. Comments on Test Results Part a. Mode A V-I Slope Minimum 24.676 V-I Slope Average 25.063 V-I Slope Maximum 25.781 Part b. Voltage Offset 1.013 Current Offset Not Applicable NOTE: Failures indicated in red, enclosed by parenthesis Test # and Label 33.1.4 – Non Valid PD Detection Signature Expected Results and Procedural Comments Mode B 24.628 25.050 25.761 1.029 Not Applicable Part(s) a Units KΩ KΩ KΩ V µA Result(s) PASS Purpose: To verify that the DUT presents a non-valid detection signature while it is not requesting power, or once powered, at the PI of the non-powered pairs. a. The PD should have a non-valid input resistance less than 12 kΩ or greater than 45 kΩ.. Comments on Test Results Part a. Mode A V-I Slope Minimum 6134.2 V-I Slope Average 37095.8 NOTE: Failures indicated in red, enclosed by parenthesis UNH-IOL PoE Consortium 5 Mode B 5088.2 61304.7 Units KΩ KΩ Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Test # and Label 33.1.5 – PD Classification Signature Expected Results and Procedural Comments Part(s) a Result(s) PASS Using Testing Configuration A, verify that the DUT provides proper classification signature current draw. a. The current drawn by the DUT should fall within the range (inclusive) specified for each supported class. Comments on Test Results Part a. Mode A Class 0 Avg. Signature Current 0.460 Class 1 Avg. Signature Current 10.419 Class 2 Avg. Signature Current 18.514 Class 3 Avg. Signature Current 27.647 Class 4 Avg. Signature Current 40.581 NOTE: Failures indicated in red, enclosed by parenthesis Mode B 0.461 10.417 18.505 27.644 40.576 Units mA mA mA mA mA Test # and Label 33.1.6 – Input Average Power Expected Results and Procedural Comments Part(s) a Result(s) PASS Using Testing Configuration B, verify that the DUT provides proper information about its maximum power requirements, and that those requirements fall within the acceptable range. a. The power drawn by the DUT should fall within the range (inclusive) specified for each supported class. Comments on Test Results Part a. Mode A Power Draw at 44 V 0.235 Class 0 Power Draw at 57 V 0.305 Power Draw at 44 V 0.241 Class 1 Power Draw at 57 V 0.311 Power Draw at 44 V 0.240 Class 2 Power Draw at 57 V 0.300 Power Draw at 44 V 0.232 Class 3 Power Draw at 57 V 0.285 Power Draw at 44 V 0.241 Class 4 Power Draw at 57 V 0.313 NOTE: Failures indicated in red, enclosed by parenthesis UNH-IOL PoE Consortium 6 Mode B 0.238 0.309 0.239 0.310 0.240 0.310 0.240 0.311 0.241 0.311 Units W W W W W W W W W W Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Test # and Label 33.1.7 – Backfeed Voltage Expected Results and Procedural Comments Part(s) a Result(s) PASS Using Testing Configuration A, verify that when the DUT is powered, the voltage on the opposite mode, across a 100kΩ resistor is less than Vbfd, or 2.8V. a. The voltage across the 100kΩ should be less than 2.8V Comments on Test Results a. The voltage across the 100kΩ resistor was observed to be 0.0 V. Test # and Label 33.1.8 – PD Power Supply Turn On / Off Part(s) a b c Result(s) PASS PASS PASS Expected Results and Procedural Comments Using Testing Configuration A, verify that the DUT will turn on its power supply once power has been applied to the PI, will remain on over the entire port voltage range, and turn off its power supply once power is removed. a. b. c. The DUT should turn on its power supply at a port voltage less than 42 V. Once turned on, the DUTs power supply should remain on for port voltages over the range of 44 V to 57V. The DUT should turn off its power supply at a port voltage greater than 30V and less than 36 V. Comments on Test Results a. b. c. Mode A - The DUTs power supply was observed to properly turn on at a port voltage less than 42 V. Mode B - The DUTs power supply was observed to properly turn on at a port voltage less than 42 V. The DUT remained operational throughout the entire range of port voltages. Mode A - The DUTs power supply was observed to turn off at a port voltage of 31 V. Mode B - The DUTs power supply was observed to turn off at a port voltage of 31 V. UNH-IOL PoE Consortium 7 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Annex A: Figures Attached are plots of the data taken for signature resistance and classification current draws. These data points were obtained using digital multimeter and a digital power supply. The data was downloaded and post processed using custom Matlab scripts. UNH-IOL PoE Consortium 8 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 1: Mode A Detection Signature Characteristics Figure 1: Mode A Detection Signature Characteristics V−I Curve 600 Offset Value Current (uA) 500 400 300 200 100 0 0 1 2 3 4 5 Voltage (V) 6 7 8 9 10 Resistance Curve Valid Region Guardband Resistance (kΩ) 50 40 30 20 10 0 1 UNH-IOL PoE Consortium 2 3 4 5 Voltage (V) 9 6 7 8 9 10 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 2: Mode B Detection Signature Characteristics Figure 2: Mode B Detection Signature Characteristics V−I Curve 600 Offset Value Current (uA) 500 400 300 200 100 0 0 1 2 3 4 5 Voltage (V) 6 7 8 9 10 Resistance Curve Valid Region Guardband Resistance (kΩ) 50 40 30 20 10 0 1 UNH-IOL PoE Consortium 2 3 4 5 Voltage (V) 10 6 7 8 9 10 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 3: Mode A Classification Signature Characteristics - Class 0 Figure 3: Mode A Classification Signature Characteristics − Class 0 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 11 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 4: Mode A Classification Signature Characteristics - Class 1 Figure 4: Mode A Classification Signature Characteristics − Class 1 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 12 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 5: Mode A Classification Signature Characteristics - Class 2 Figure 5: Mode A Classification Signature Characteristics − Class 2 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 13 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 6: Mode A Classification Signature Characteristics - Class 3 Figure 6: Mode A Classification Signature Characteristics − Class 3 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 14 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 7: Mode A Classification Signature Characteristics - Class 4 Figure 7: Mode A Classification Signature Characteristics − Class 4 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 15 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 8: Mode B Classification Signature Characteristics - Class 0 Figure 8: Mode B Classification Signature Characteristics − Class 0 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 16 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 9: Mode B Classification Signature Characteristics - Class 1 Figure 9: Mode B Classification Signature Characteristics − Class 1 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 17 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 10: Mode B Classification Signature Characteristics - Class 2 Figure 10: Mode B Classification Signature Characteristics − Class 2 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 18 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 11: Mode B Classification Signature Characteristics - Class 3 Figure 11: Mode B Classification Signature Characteristics − Class 3 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 19 19 20 21 22 Report Rev. 1.0 Clause 33 PD Conformance Test Suite v1.5 Report DUT: Linear Technology LTC4267EDHC Figure 12: Mode B Classification Signature Characteristics - Class 4 Figure 12: Mode B Classification Signature Characteristics − Class 4 Class 4 45 40 35 Class 3 Current (mA) 30 25 Class 2 20 15 Class 1 10 Class 0 5 0 13 UNH-IOL PoE Consortium 14 15 16 17 18 Voltage (V) 20 19 20 21 22 Report Rev. 1.0