Agilent Technologies N4962A Podręcznik Użytkownika Pobierz pdf (Strona 8)

Serial BERT 12.5 Gb/s User Guide

3.6 Data Path ........................................................................................................ 32

4 Operation ................................................................................................................. 33

4.1 General Information ...................................................................................... 33

4.1.1 Performance Recommendations .................................................. 34

4.1.2 Connector Care ............................................................................... 34

4.2 Front Panel Interface .................................................................................... 35

4.2.1 Front Panel – Display Panel .......................................................... 36

4.2.2 Front Panel – Local, Receiver, and Data Path Controls ........... 37

4.2.3 Front Panel – Configuration Adjustment Controls .................... 39

4.2.4 Front Panel – Display Selection Controls ................................... 44

4.3 Rear Panel Interface ..................................................................................... 46

4.4 Power-On State .............................................................................................. 48

4.5 System Verification ....................................................................................... 49

4.5.1 Self Test Mode ................................................................................ 49

4.5.2 Error Free Test................................................................................. 50

4.5.3 High BER Test ................................................................................. 50

4.5.4 Low BER Test .................................................................................. 51

4.6 BER Detector Clock Phase Adjustment ..................................................... 51

4.7 Basic BER Measurement ............................................................................. 53

5 Remote GPIB Interface .......................................................................................... 55

5.1 GPIB Capabilities ........................................................................................... 56

5.2 GPIB Command Syntax ................................................................................ 57

5.2.1 Command Structure ....................................................................... 58

5.3 IEEE Common Commands ............................................................................ 59

5.4 SCPI Mandated Commands ......................................................................... 60

5.5 N4962A Device Commands ......................................................................... 60

5.5.1 Internal Clock Commands ............................................................. 61

5.5.2 PRBS Pattern Commands ............................................................. 65

5.5.3 Measurement Commands ............................................................. 70

5.6 Examples ......................................................................................................... 80

6 Returning the N4962A Serial BERT to Agilent Technologies ......................... 85

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Agilent Technologies N4962A Podręcznik Użytkownika Strona 8