Teledyne-lecroy QPHY-ENET Uživatelský manuál

QPHY-ENET Ethernet Serial Data Operator’s Manual Revision G – October, 2008 Relating to the Following Release Versions: • Software Optio

10 QPHY-ENET Operator’s Manual Rev G TF-ENET-B Test Fixture Package The TF-ENET-B package is delivered in a soft pouch with a foam insert. TF-ENET-

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 11 Ethernet Test Fixture Sections Figure 2. TF-ENET-B test fixture board sections 10BT

12 QPHY-ENET Operator’s Manual Rev G TEST ITEM TF-ENET-B section Jitter Test Cable Link Partner AWG A B C D E F G 1000BASE-T

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 13 QualiPHY Compliance Test Platform QualiPHY is LeCroy’s unique compliance test fr

14 QPHY-ENET Operator’s Manual Rev G See the QualiPHY Operator’ s Manual for more information on how to use the QualiPHY framework. Figure 4. The

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 15 INSTALLATION Oscilloscope Option Key Installation An option key must be purchased to e

16 QPHY-ENET Operator’s Manual Rev G QualiPHY tests the oscilloscope connection after clicking the Start button. The system prompts you if there is

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 17 5. Click the Configuration button in the QualiPHY main menu: 6. Select a configurat

18 QPHY-ENET Operator’s Manual Rev G Customizing QualiPHY The predefined configurations in the Configuration screen cannot be modified. H

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 19 Once a custom configuration is defined, script variables and the test limits can be ch

2 QPHY-ENET Operator’s Manual Rev G LeCroy Corporation 700 Chestnut Ridge Road Chestnut Ridge, NY 10977–6499 Tel: (845) 578 6020, Fax: (845) 578 5

20 QPHY-ENET Operator’s Manual Rev G QualiPHY-ENET Operation After pressing Start in the QualiPHY menu, a pop-up connection diagram and dialog box

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 21 1000Base-T A, B, C or D Pair Selection In the 1000Base-T test, a pop-up menu asks if t

22 QPHY-ENET Operator’s Manual Rev G OSCILLOSCOPE OPERATION This topic explains how to operate the oscilloscope manually. All of the following step

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 23 Source selection fields are displayed on the right side of the menu. The TF-ENET-B fix

24 QPHY-ENET Operator’s Manual Rev G 10Base-T Tests The required tests for the 10Base-T signal type are pulse mask, voltage level, and jit

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 25 10Base-T DOV Mask and Voltage Test The differential output voltage (DOV) is defined

26 QPHY-ENET Operator’s Manual Rev G 6. Click the Set Up and Start Test button to start the test and display the pass/fail results. 7. Repeat the

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 27 Figure 16. DOV Peak Voltage Test Figure 17. 10Base-T DOV Harmonics

28 QPHY-ENET Operator’s Manual Rev G 10Base-T TP_IDL Mask Test This test measures the wave shape of the TP_IDL signal at the output of the MAU. Thi

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 29 7. Select TP_IDL Tail Mask in the “Select Test” field. 8. Touch the Set Up and Start

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 3 TABLE OF CONTENTS INTRODUCTION ...

30 QPHY-ENET Operator’s Manual Rev G Figure 20. TP_IDL tail mask test

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 31 10Base-T Link Test Pulse Mask The link test pulse is a single-bit positive-going pu

32 QPHY-ENET Operator’s Manual Rev G 13. Install jumpers to test without TPM LOAD1. Refer to XTable 2X (previous). 14. Select Link Test Pulse Hea

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 33 Figure 23. Link pulse mask test (tail portion)

34 QPHY-ENET Operator’s Manual Rev G 10-Base-T Output Timing Jitter The timing jitter at the output of the MAU is determined by measuring the timin

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 35 9. Select Output Timing Jitter 8.5 BT in the “Select Test Field.” 10. Select externa

36 QPHY-ENET Operator’s Manual Rev G Figure 26. Output Timing Jitter for 8.5BT

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 37 10Base-T Common Mode Output Voltage Test This test ensures that the zero to peak commo

38 QPHY-ENET Operator’s Manual Rev G 100Base-TX Tests The 100Base-TX signal is an MLT-3 signal, that is, symbols are encoded into one of three volt

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 39 100Base-TX compliance test patterns 100Base-TX testing requires special patterns that

4 QPHY-ENET Operator’s Manual Rev G 1000BT Template Tests section (D) ...

40 QPHY-ENET Operator’s Manual Rev G been set in previous step. Figure 29. Adjustment of vertical scale and coupling The signal should be adjusted

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 41 100Base-TX Mask Test Mask testing of 100Base-TX signals is a useful and quick method t

42 QPHY-ENET Operator’s Manual Rev G 100Base-TX Jitter Test Jitter in 100Base-TX signals is defined as the time interval error between an ideal clo

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 43 100Base-TX Duty cycle distortion The duty cycle distortion measurement determines

44 QPHY-ENET Operator’s Manual Rev G 100Base-TX Amplitude, Symmetry, and Overshoot The peak differential voltage of the MLT-3 signal should

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 45 Figure 33. 100Base-TX differential output voltage and overshoot

46 QPHY-ENET Operator’s Manual Rev G 100Base-TX Rise and Fall Time The rise time of the MLT-3 signal is defined as the transition time from the bas

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 47 1000Base-T Measurements Transmitter measurements for gigabit Ethernet over coppe

48 QPHY-ENET Operator’s Manual Rev G 1000Base-T Peak Differential Voltage, Droop, Template - Mode 1 with Disturbing Signal This test is defined in

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 49 Figure 37. Block diagram of TF-ENET-B fixture section D 1. Calibrate data path (see

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 5 Figure 33. 100Base-TX differential output voltage and overshoot ...

50 QPHY-ENET Operator’s Manual Rev G 10. The Average Result checkbox is checked by default. Entering a number in the Avg Weight field causes the s

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 51 Figure 39. 1000Base-T mode 1 test showing one mask; all mask test results are listed

52 QPHY-ENET Operator’s Manual Rev G 1000Base-T Transmitter Distortion - Mode 4 with Disturbing Signal The distortion test measures the error

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 53 Figure 41. Setting the disturbing signal level for mode 1 test Figure 42. Mode 4 dis

54 QPHY-ENET Operator’s Manual Rev G Mode 1 and Mode 4 without Disturbing Signal These tests are performed on a physical interface transmitting the

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 55 2. Use Differential Return Loss section of the board (G: recommended), for SMA cabl

56 QPHY-ENET Operator’s Manual Rev G Figure 45. Mode 2 and Mode 3 w/o TX_TCLK w/o Link Partner Figure 46. Mode 2 and Mode 3 with TX_TCLK and Link

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 57 1000Base-T Master Jitter - Mode 2 without TX_TCLK Clause 40.6.1.2.5 of IEEE 802.3-2005

58 QPHY-ENET Operator’s Manual Rev G 1000Base-T Slave Jitter - Mode 3 without TX_TCLK Note : The following test must only be done after the Mode 2

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 59 1000Base-T Master and Slave Jitter - with TX_TCLK For devices exposing TX_TCLK, as

6 QPHY-ENET Operator’s Manual Rev G

60 QPHY-ENET Operator’s Manual Rev G 8. Repeat this process for each of the four MDI pairs in both the master timing mode (test mode 2) and the sl

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 61 Step 2: Master TX_TCLK Jitter This step measures both unfiltered and filtered TX_TCLK

62 QPHY-ENET Operator’s Manual Rev G Step 3: Slave TX_TCLK Jitter Jitter in slave mode is designed to measure the jitter in the recovered clock in

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 63 Figure 50. Example Slave with TX_TCLK Jitter display. The trace shows the filtered tr

64 QPHY-ENET Operator’s Manual Rev G 1. Set the Device Under Test for normal operation in Slave mode. 2. Use an active or differential probe (

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 65 Figure 51. Jitter test channel definition, this cable connects the Device Under Test

66 QPHY-ENET Operator’s Manual Rev G 1000Base-T Common Mode Output Voltage Test This test ensures that the peak-to-peak common mode output

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 67 TF-ENET-B JUMPER PIN CONFIGURATION GENERAL INFORMATION This section provides a quick r

68 QPHY-ENET Operator’s Manual Rev G Jumpers and Connectors Section A: With TPM; J1/J6/J14/J16, Without TPM; J7/J8/J9/J10, 100 Ω:J24/J25, Load1:

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 69 As shown on the board, J15 and J58 connect pair A to the oscilloscope; J

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 7 INTRODUCTION QPHY-ENET is an automated test package that performs electrical t

70 QPHY-ENET Operator’s Manual Rev G LINK PARTNER TESTING FOR 10BASE-T & 100BASE-TX DEVICES Note: Link Partner testing is for informational pur

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 71 The DUT should be providing data output instead of just the link pulse. When this occu

72 QPHY-ENET Operator’s Manual Rev G TF-ENET-B TEST AND CALIBRATION PROCEDURES This topic describes the procedures to calibrate the TF-ENET

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 73 In the previous procedure, we used the default setup of the Skew parameter (which is d

74 QPHY-ENET Operator’s Manual Rev G Signal Path Calibration Procedure Even the highest quality differential probes will be non-linear and have noi

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 75 1. Connect DUT to J68. 2. Install jumpers on J71 and J77, and remove jumpers from J9

76 QPHY-ENET Operator’s Manual Rev G Figure 60. Data Amplitude measurement for Splitter calibration 6. Connect AWG to J3 and J4. 7. Set AWG

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 77 Disturber Calibration Procedure This procedure measures the amplitude of the disturbin

78 QPHY-ENET Operator’s Manual Rev G Disturbing Signal Source The signal generator used as the disturbing signal source must be set as

8 QPHY-ENET Operator’s Manual Rev G Test Items 10Base-T [IEEE 802.3-2005] Peak Differential Output Voltage [14.3.1.2.1] Differential Output Volta

QPHY-ENET Software Option QPHY-ENET Operator’s Manual Rev G 9 Jitter Base to Lower [ANSI 9.1.9] Twisted Pair Active Output Interface template [ANSI