SRS Labs SR510 User Manual

Page 4

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RS232 Interface

42

GPIB Interface

42

Power Supplies

42

Internal Oscillator

42

Calibration and Repair

Introduction

43

Multiplier Adjustments

43

Amplifier and Filter Adjustments

43

CMRR Adjustment

43

Line Notch Filter Adjustment

44

2xLine Notch Filter Adjustment

44

Repairing Damaged Front-End

44

Appendix A: Noise Sources and Cures

Johnson Noise

45

'1/f' Noise

45

Noise Spectrum

45

Capacitive Coupling

46

Inductive Coupling

46

Ground Loops

47

Microphonics

47

Thermocouple Effect

47

Appendix B: RS232

Simplest Case Using the RS232

48

Using Control Lines

48

Baud Rates

49

Stop Bits

49

Parity

49

Voltage Levels

49

'Eavesdropping'

49

Appendix C: GPIB

Introduction to the GPIB

51

Bus Description

51

Appendix D: Program Examples

IBM PC, Microsoft Basic, via RS232

53

IBM PC, Microsoft Fortran, via RS232

54

IBM PC, Microsoft C, via RS232

55

IBM PC, Microsoft Basic, via GPIB

56

HP-85, HP Basic, via HPIB

57

Documentation

Part Numbering and Locations

73

Parts List, Main Assembly

74

Parts List, Internal Oscillator

75

Parts List, Miscellaneous

98

Parts List, Front Panel

94

Schematic Diagrams

99

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