Agilent Technologies N4962A Uživatelská příručka stáhnout pdf (Strana 43)

Operation

Serial BERT 12.5 Gb/s User Guide 43

Text

Type

Description

Default

measurement depth (BER) is:

)()()(

BERMeasDepthstimeGHzFreq

eCI

××−

−=

• 1234R111

o options: none

This is the serial number and firmware revision

code

of the instrument

(only the last four digits of

the serial number are shown on the front panel

display).

Table 14. ErAd settings and expected BER measurements for 10 Gb/s operation

ErAd Setting

(added errors

per second)

Expected BER

(10 GHz clock;

no other errors)

Expected BER

(12.5 GHz clock;

no other errors)

OFF

1E0

-10

-11

1E1

-9

-10

1E2

-8

-9

1E3

-7

-8

1E4

-6

-7

1E5

1E-5

8E-6

1E6

-4

-5

1E7

-3

-4

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 87 88

Agilent N4962A 1
Notices 2
Safety Summary 3
Symbols on Instruments 4
Contents 7
1 Getting Started 9
1.1.3 PRBS generator 10
1.1.4 Error detector 10
1.1.5 Operating modes 10
1.1.6 Display 10
Getting Started 11
1.3.2 Safety and Regulatory 13
1.3.4 Important Notes 13
1.5 Turn It On 14
1.4 Connect the Hardware 14
1.6 Align Clock and Data 15
1.7 Make the Measurement 15
2 N4962A System Overview 17
N4962A System Overview 18
2.3 Connector Care 22
Specifications 23
3.2 Safety and Regulatory 24
3.3 Internal Clock 24
3.4 PRBS Generator 27
3.5 Error Detector 29
3.6 Data Path 32
4 Operation 33
4.1.2 Connector Care 34
4.2 Front Panel Interface 35
Operation 36
4.3 Rear Panel Interface 46
4.4 Power-On State 48
4.5 System Verification 49
4.5.2 Error Free Test 50
4.5.3 High BER Test 50
4.5.4 Low BER Test 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
Remote GPIB Interface 62
5.5.2 PRBS Pattern Commands 65
5.5.3 Measurement Commands 70
5.6 Examples 80
6 Returning the N4962A 85
Returning the N4962A 86

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