ADVANTEST R3755 Series User manual

R3755x/R3760
Network Analyzer
Operation Manual
Manual Number FOE-8440279E06
Applicable Models
R3755A
R3755TF
R3755E
R3760
© 2009 ADVANTEST CORPORATION First Edition Oct 30/09
All Rights Reserved Printed in Japan

Legal Notices
All rights reserved. All text and figures included in this publication are the exclusive property of Advantest Corpora-
tion. Reproduction of this publication in any manner without the written permission of Advantest Corporation is pro-
hibited. Information in this document is subject to change without notice.
Trademarks and Registered Trademarks
• ADVANTEST is a trademark of Advantest Corporation.
• Windows XP, Windows Vista, Windows 7, or Windows 10 is a trademark or registered trademark of Microsoft
Corporation in the United States and other countries.
• Visual C++ 6.0, Visual Basic 6.0, Visual Basic 2008, Visual C++ 2008, Visual Studio 2010, and .NET Frame-
work are trademarks or registered trademarks of Microsoft Corporation in the United States and other coun-
tries.
• All other marks referenced herein are trademarks or registered trademarks of their respective owners.

Revision History
Rev. Date Notes
A00 Oct 30/09
E05 Oct 26/18
E06 Mar 08/21

Preface-1
Preface
This manual describes the R3755x/R3760 Network Analyzer transmission procedures, programming functions, and
remote programs.
Organization of this manual
This manual consists of the following chapters:
Safety Summary
To use the analyzer safely, be sure to read this manual
first.
1. INTRODUCTION Describes the R3755x/R3760 unit accessories and operat-
ing environment.
2. EXPLANATION OF PANEL SURFACE Describes each part name and function on the panel.
3. BAPI FUNCTIONS
Describes the Application Programming Interface for
Board Instruments (BAPI) functions.
4. FUNCTION SPECIFICATIONS
Describes the BAPI specification in detail.
5. PERFORMANCE TEST
Describes the performance check procedure.
6. ADJUSTMENT
Describes the reference frequency adjustment procedure.
7. SPECIFICATIONS
Provides the specifications for the analyzer.
8. MAINTENANCE
Describes cleaning, storing, and transporting the analyzer.
APPENDIX
Describes the installation method to the host PC and the
sample program operation method.

C-1
Table of Contents
1. INTRODUCTION ....................................................................................... 1-1
1.1 Product Description ........................................................................................... 1-1
1.2 Accessories (R3755x/R3760) ........................................................................... 1-2
1.3 Options (Sold Separately) ................................................................................. 1-2
1.4 Operating Environment ..................................................................................... 1-3
1.4.1 Environmental Conditions .......................................................................... 1-3
1.4.2 Power Supply Specifications ...................................................................... 1-4
1.5 Precautions in Use ............................................................................................. 1-5
1.6 Warm up ............................................................................................................ 1-6
2. EXPLANATION OF PANEL SURFACE ............................................ 2-1
2.1 Front Panel (R3755A/R3755TF/R3755E) ........................................................ 2-1
2.2 Front Panel (R3760) .......................................................................................... 2-2
2.3 Parallel I/O Port ................................................................................................ 2-3
3. BAPI FUNCTIONS .................................................................................... 3-1
3.1 Communication Protocol .................................................................................. 3-1
3.2 Internal Data Flow ............................................................................................ 3-2
3.3 Macro Definitions ............................................................................................. 3-3
3.3.1 ON/OFF ...................................................................................................... 3-3
3.3.2 TRUE/FALSE ............................................................................................ 3-3
3.3.3 Measurement Ports ..................................................................................... 3-3
3.3.4 CAL Types ................................................................................................. 3-3
3.3.5 Z Conversion Modes .................................................................................. 3-4
3.3.6 Frequency Modes ....................................................................................... 3-4
3.3.7 Frequency Setting Types ............................................................................ 3-4
3.3.8 IF-AMP Modes ........................................................................................... 3-4
3.3.9 Analysis Channels ...................................................................................... 3-5
3.3.10 Port Numbers .............................................................................................. 3-5
3.3.11 Declaration of the Structure for Batch Setting ........................................... 3-6
3.4 Error Code List .................................................................................................. 3-7
3.5 Packet Communication Functions (Socket Communications) .......................... 3-9
3.5.1 Communication Control Function List ....................................................... 3-9
3.5.2 BisOpenPacket ..................................................................................................3-10
3.5.3 BisGetlpStr ........................................................................................................3-12
3.5.4 BisClosePacket ..................................................................................................3-14
3.6 Programming Example.............................................................................................3-16
3.6.1 Setting Conditions for an Instrument ................................................................3-16
3.6.2 Calling Conditions From an Instrument ............................................................3-18
3.6.3 Calling Measurement and Measurement Results ..............................................3-19
3.6.4 Calling and Writing Complex Number Data.....................................................3-20
4. FUNCTION SPECIFICATIONS ............................................................. 4-1
4.1 ABORt Subsystem ............................................................................................ 4-1
4.1.1 BisAbor ...................................................................................................... 4-1
4.2 CALCulate Subsystem ...................................................................................... 4-2

C-2
4.2.1 BisCalcTranImpCimp ................................................................................ 4-2
4.2.2 QryCalcTranImpCim .................................................................................. 4-2
4.2.3 BisCalcTranImpType ................................................................................. 4-3
4.2.4 QryCalcTranImpType ................................................................................ 4-3
4.3 FETCh Subsystem ............................................................................................. 4-4
4.3.1 QryFetcFreq ................................................................................................ 4-4
4.3.2 QryFetcPoin ................................................................................................ 4-4
4.3.3 QryFetcMax ................................................................................................ 4-5
4.3.4 QryFetcMin ................................................................................................ 4-5
4.3.5 QryFetcTarg ............................................................................................... 4-6
4.3.6 QryFetcVal ................................................................................................. 4-6
4.3.7 QryFetcCVal .............................................................................................. 4-7
4.4 INITiate Subsystem ........................................................................................... 4-8
4.4.1 BisInitCont ................................................................................................. 4-8
4.4.2 QryInitCont ................................................................................................ 4-8
4.4.3 BisInitImm .................................................................................................. 4-8
4.4.4 BisInitImmPart ........................................................................................... 4-9
4.4.5 BisInitWai .................................................................................................. 4-9
4.5 MEASurement Subsystem .......................................................................................4-10
4.5.1 BisMeasAct .......................................................................................................4-10
4.5.2 QryMeasAct ......................................................................................................4-10
4.6 PIO Subsystem .........................................................................................................4-11
4.6.1 BisPioOut ..........................................................................................................4-11
4.6.2 QryPioIn ............................................................................................................4-11
4.7 SENSe Subsystem....................................................................................................4-12
4.7.1 BisSensCorrCkitType........................................................................................4-12
4.7.2 QrySensCorrCkitType.......................................................................................4-12
4.7.3 BisSensCorrCollMeth........................................................................................4-13
4.7.4 QrySensCorrCollMeth.......................................................................................4-13
4.7.5 BisSensCorrColl................................................................................................4-14
4.7.6 BisSensCorrCollSave ........................................................................................4-14
4.7.7 BisSensCorrCollDel ..........................................................................................4-14
4.7.8 BisSensCorrCsetStat..........................................................................................4-15
4.7.9 QrySensCorrCsetStat.........................................................................................4-15
4.7.10 BisSensCorrCkitDefOpen .................................................................................4-16
4.7.11 QrySensCorrCkitDefOpen ................................................................................4-16
4.7.12 BisSensCorrCkitDefShor ..................................................................................4-16
4.7.13 QrySensCorrCkitDefShor..................................................................................4-17
4.7.14 BisSensCorrCkitDefLoad..................................................................................4-17
4.7.15 QrySensCorrCkitDefLoad.................................................................................4-17
4.7.16 BisSensCorrCkitUser ........................................................................................4-18
4.7.17 QrySensCorrCkitUser........................................................................................4-19
4.7.18 BisSensCorrEdelDist.........................................................................................4-19
4.7.19 QrySensCorrEdelDist ........................................................................................4-19
4.7.20 BisSensCorrEdelStat .........................................................................................4-20
4.7.21 QrySensCorrEdelStat ........................................................................................4-20
4.7.22 BisSensCorrEdelTime .......................................................................................4-20
4.7.23 QrySensCorrEdelTime ......................................................................................4-21
4.7.24 BisSensCorrOffsPhas ........................................................................................4-21
4.7.25 QrySensCorrOffsPhas .......................................................................................4-21
4.7.26 BisSensCorrOffsStat..........................................................................................4-22
4.7.27 QrySensCorrOffsStat.........................................................................................4-22
4.7.28 BisSensCorrPortExtDist....................................................................................4-22
4.7.29 QrySensCorrPortExtDist ...................................................................................4-23
4.7.30 BisSensCorrPortExtStat ....................................................................................4-23
4.7.31 QrySensCorrPortExtStat....................................................................................4-23

C-3
4.7.32 BisSensCorrPortExtTime ..................................................................................4-24
4.7.33 QrySensCorrPortExtTime .................................................................................4-24
4.7.34 BisSensCorrRVelCoax......................................................................................4-24
4.7.35 QrySensCorrRVelCoax .....................................................................................4-25
4.7.36 BisSensCorrSlopPhas........................................................................................4-25
4.7.37 QrySensCorrSlopPhas .......................................................................................4-25
4.7.38 BisSensFunc ......................................................................................................4-26
4.7.39 QrySensFunc .....................................................................................................4-26
4.8 SOURce Subsystem .................................................................................................4-27
4.8.1 BisSourSeg ........................................................................................................4-27
4.8.2 QrySourSeg .......................................................................................................4-28
4.8.3 QrySourSegCoun...............................................................................................4-28
4.8.4 BisSourSweTime...............................................................................................4-29
4.8.5 QrySourSweTime ..............................................................................................4-29
4.8.6 QrySourFreqTab................................................................................................4-30
4.8.7 QrySourPowTab ................................................................................................4-30
4.8.8 BisSourSegTab..................................................................................................4-31
4.8.9 QrySourSegTab .................................................................................................4-31
4.9 STATus Subsystem..................................................................................................4-32
4.9.1 QryStatOper.......................................................................................................4-32
4.9.2 QryStatSweCoun ...............................................................................................4-32
4.9.3 QryStatThermo ..................................................................................................4-32
4.10 SYSTem Subsystem.................................................................................................4-33
4.10.1 BisSystPres........................................................................................................4-33
4.10.2 QrySystErr.........................................................................................................4-33
4.10.3 QrySystIden.......................................................................................................4-33
4.11 TRACe Susbsystem .................................................................................................4-34
4.11.1 BisTracData.......................................................................................................4-34
4.11.2 QryTracData ......................................................................................................4-34
4.12 TRIGger Susbsystem ...............................................................................................4-35
4.12.1 BisTrigSour .......................................................................................................4-35
4.12.2 QryTrigSour ......................................................................................................4-35
5. PERFORMANCE TEST ............................................................................ 5-1
5.1 R3755A/R3755TF/R3755E Performance Test ................................................. 5-1
5.1.1 Preparing for a Performance Test ............................................................... 5-1
5.1.2 General Cautionary Points .......................................................................... 5-2
5.1.3 Frequency Accuracy and Range ................................................................. 5-2
5.1.4 Output Level Accuracy and Flatness (R3755A/R3755TF) ........................ 5-3
5.1.5 Output Level Linearity (R3755A/R3755TF) ............................................. 5-4
5.1.6 Noise Floor ................................................................................................. 5-5
5.1.7 Dynamic Level Accuracy (R3755A/R3755TF) ......................................... 5-6
5.2 R3760 Performance Test ................................................................................... 5-8
5.2.1 Preparing for a Performance Test ............................................................... 5-8
5.2.2 General Cautionary Points .......................................................................... 5-9
5.2.3 Frequency Accuracy and Range ................................................................. 5-9
5.2.4 Output Level Accuracy and Flatness.................................................................5-10
5.2.5 Output Level Linearity ......................................................................................5-11
5.2.6 Noise Floor ........................................................................................................5-12
5.2.7 Dynamic Level Accuracy ..................................................................................5-13

C-4
6. ADJUSTMENT ............................................................................................
6-1
6.1 Frequency Reference Adjustment (R3755A/R3755TF with OPT20)...............
6-1
6.2 Frequency Reference Adjustment (R3760 with OPT20) ..................................
6-2
7. SPECIFICATIONS ..................................................................................... 7-1
7.1 R3755A Specifications .....................................................................................
7-1
7.2 R3755TF Specifications ....................................................................................
7-4
7.3 R3755E Specifications ......................................................................................
7-7
7.4 R3760 Specifications ........................................................................................
7-10
8. MAINTENANCE ........................................................................................ 8-1
8.1 Cleaning ............................................................................................................
8-1
8.2 Calibration and Repair ......................................................................................
8-1
8.3 Storing ...............................................................................................................
8-1
8.4 Transporting ......................................................................................................
8-2
8.5 Product Disposal and Recycle ...........................................................................
8-3
APPENDIX ................................................................................................................. A-1
A.1 Starting R3755x/R3760 .....................................................................................
A-1
A.1.1 Before Starting R3755x/R3760 ..................................................................
A-1
A.1.2 Procedure for Starting R3755x/R3760 .......................................................
A-3
A.1.2.1 Error Messages on Starting R3755x/R3760 ...............................................
A-4
A.1.2.2 R3755x/R3760 Connection Error...............................................................
A-5
A.1.2.3 R3755x/R3760 10MHz Reference Detection Error ...................................
A-6
A.1.2.4 R3755x/R3760 Temperature Error .............................................................
A-6
A.1.3 Descriptions of Network Analyzer Control Server Window .....................
A-7
A.1.3.1 Descriptions of Window Components .......................................................
A-7
A.1.3.2 Selecting 10 MHz Standard........................................................................
A-9
A.1.3.3 Setting PI Circuit Connection Status ..........................................................
A-10
A.1.4 Terminating Network Analyzer Control Server (NACServer.exe) ............
A-11
A.1.4.1 Procedure for Terminating NACServer.exe ...............................................
A-11
A.1.4.2 Error Messages on Terminating NACServer.exe .......................................
A-11
A.1.4.3 Confirming Version Information................................................................
A-12
A.1.5 Creating Application ..................................................................................
A-13
A.2 Using R3755x/R3760 with Sample Program ....................................................
A-14
A.3 Explanation of Sample Programs......................................................................
A-15
A.3.1 Descriptions of Window Components .......................................................
A-17
A.3.1.1 Measurement Information Display .............................................................
A-17
A.3.1.2 Reset Button ...............................................................................................
A-17
A.3.1.3 Measurement Channel Setting ....................................................................
A-17
A.3.1.4 Connection Box ..........................................................................................
A-18
A.3.1.5 Trigger ........................................................................................................
A-18
A.3.1.6 Stimulus / Cal Kit / Ele Corr / Func ...........................................................
A-19
A.3.1.7 Display Scale Setting Area .........................................................................
A-26
A.3.1.8 Stimulus ......................................................................................................
A-27
A.3.1.9 Setting Area for Other Measurement Items ...............................................
A-28
A.3.1.10 CAL ..................................................................................................................A-29
A.3.1.11 Trace Waveform Format Selection ............................................................ A-30
A.3.1.12 Overlap Format ........................................................................................... A-32

C-5
A.3.1.13 MEAS ...............................................................................................................A-33
A.3.1.14 Marker Function ......................................................................................... A-33
A.3.1.15 File(F) ......................................................................................................... A-35
A.4 Dimensional Outline Drawing .......................................................................... A-36
ALPHABETICAL INDEX..................................................................................... I-1

1. INTRODUCTION
1-1
1. INTRODUCTION
Includes the accessories along with information on the analyzers' operating environment, and information on
how to perform a system checkout for users who operate the analyzer for the first time.
1.1 Product Description
The R3755x/R3760 is a new type of network analyzer, which can be used by installing it into a PCI extension
slot of a personal computer (PC).
The key features of the analyzer are listed below:
• The space-saving automatic/semiautomatic system can be easily configured.
• Applications can be created and run on the PC.
Commercially available tools can be used. This allows easy application development and maintenance.
(A required driver is supplied as standard.)
• Wide measuring range 10 kHz to 300 MHz R3755A
10 kHz to 10 MHz R3755TF
1 MHz to 300 MHz R3755E
300 MHz to 6 GHz R3760
• High-speed measurement 50 µsec/point R3755A/R3755TF/R3755E
300 µsec/point R3760

1.2 Accessories (R3755x/R3760)
1-2
1.2 Accessories (R3755x/R3760)
The table below lists the standard accessories shipped with the analyzer. If any of the accessories are damaged
or missing, contact Advantest. Additional accessories should be referred to by model name when ordered.
Table 1-1 Standard Accessories List
Name
Model name
Quantity
Remarks
R3755x/R3760 Operation manual
FOC-8440274
1
CD-ROM
SMA adapter
SMASMAFM01
2
Parallel I/O connector
HDR-E26MSG1+
1
Parallel I/O connector case
HDR-E26LPH1
1
1.3 Options (Sold Separately)
The options used for the analyzer is shown below. Options should be referred to by model name when ordered.
Table 1-2 Options
Name
Model name
Highly stable standard frequency (R3755A/R3755TF/R3760)
OPT20
Note: Hereafter, the notation of "OPT20" indicates option 20.

1.4 Operating Environment
1-3
1.4 Operating Environment
This section describes the environmental conditions and power requirements necessary to use the analyzer.
1.4.1. Environmental Conditions
The analyzer should be only be used in an area which satisfies the following conditions:
• Ambient temperature: +5°C to +55°C (operating temperature range: the internal temperature of the
PC where the R3755x/R3760 is installed)
• Relative humidity: 80% or less (without condensation)
• An area free from corrosive gas
• An area away from direct sunlight
• A dust-free area
• An area free from vibrations
• A low noise area
The analyzer is designed with full consideration for DC power linenoise.
However, it is recommended to use a PC that is located in an environment with minimum line noise. If
line noise cannot be avoided, attach a noise filter to the PC power supply.
• An area allowing unobstructed air flow
A cooling fan is located in the rear panel of the PC, and vents are located in the side panels and on the
bottom (toward the front) of the PC. Never block the fan and these vents.
Keep the rear panel 10 centimeters away from the wall. In addition, do not use the analyzer upright
turned the rear panel side down. The resulting internal temperature rise will affect measurement accu-
racy.
If exhaust air from the PC is obstructed, the internal temperature may rise resulting in the PC operating
incorrectly.
• This network analyzer card is for use only with compatible UL Listed personal computers that have
installation instructions detailing user installation of card cage accessories.

1.4.2 Power Supply Specifications
1-4
Figure 1-1 Operating Environment
The analyzer can be used safely under the following conditions:
• Altitude of up to 2000 m
• Installation Categories II
• Pollution Degree 2
1.4.2. Power Supply Specifications
The power supply specifications of the analyzer are listed in Table 1-3.
CAUTION: To prevent damage, operate the analyzer within the specified input voltage.
Table 1-3 Power Supply Specifications
R3755A/R3755TF/R3755E
R3760
Required voltages
+12 V, +5 V, +3.3 V, -12 V
+12 V, +5 V, +3.3 V, -12 V
Power consumption 15 W or lower 20 W or lower
Keep the rear panel 10 centimeters
away from the wall
Do not use the analyzer upright turned
the rear panel side down.
Front
Use a noise cut filter when there is a large
amount of noise riding on the power line.
Vibration
Avoid operation in the following areas.
Line Filter
gas
Dust
Direct sunlight

1.5 Precautions in Use
1-5
1.5 Precautions in Use
1. Before starting the measurement
When turning on the power, don't connect DUT.
Before starting the measurement, check to see the output power level.
After the power has been turned off, wait at least 30 seconds before turning it back on again.
2. Removing of case
Do not open the case to one except service man of our company.
3. When abnormality occurs
If smoke or any unusual smells or sounds come from the analyzer, turn off the power to the PC, remove
the power cable, and contact Advantest.
4. Electromagnetic interference
Electromagnetic interference may be caused to the television or the radio.
The analyzer or PC may be the cause of electromagnetic interference if the electromagnetic interference
is reduced when the power is turned off.
Reduce electromagnetic interference using the following methods
• Change the direction of antenna of the television or the radio.
• Place a PC with the R3755x/R3760 installed away from any electrical devices such as TVs or
radios.
• Use a separate power supply to the power supply with electrical devices such as TVs or radios
attached.
5. Prevention of Electrostatic Buildup
To prevent damages to semiconductor parts from electrostatic discharge (ESD), the precautions shown be-
low should be taken. We recommend that two or more measures be combined to provide adequate protec-
tion from ESD. (Static electricity can easily be built up when a person moves or an insulator isrubbed.)
Countermeasure example
Human body: Use of a wrist strap (see Figure 1-2).
Floor in the work area: Installation of a conductive mat, the use of conductive shoes, and grounding (see
Figure 1-3).
Benchboard: Installation of a conductive mat and grounding (see Figure 1-4).
Figure 1-2 Countermeasures for Static Electricity of Human Bodies
Wrist strap
Equivalent resistance
Approx.1MΩ
Ground

1.6 Warm up
1-6
Figure 1-3 Countermeasures for Static Electricity of Work Site Floor
Figure 1-4 Countermeasures for Static Electricity of Work Bench
1.6 Warm up
When the analyzer temperature has reached room temperature, turn on the PC and warm it up for at least 30
minutes.
Ground
mat
shoes
Floor
Equivalent resistance
106to 109Ω
1MΩ
Benchboard
Ground
(Method 3)
Ground
(Method 2)
Ground
(Method 1)
Conductive mat
Conductive mat
1MΩ
Conductive mat
Benchboard
Copper foil
tape
1MΩ
Conductor
Benchboard
1MΩ
1MΩ
Benchboard

2. EXPLANATION OF PANEL SURFACE
2-1
2. EXPLANATION OF PANEL SURFACE
2.1. Front Panel (R3755A/R3755TF/R3755E)
1 2 3 4 5
Figure 2-1 Front Panel
2.1.1. High stability frequency reference adjustment volume (R3755A and R3755TF: available with OPT20)
High stability frequency reference adjustment volume is available
when OPT 20 is installed and is used to adjust the high stability fre-
quency reference value.
2.1.2. External reference frequency input connector
Connect when using an external reference frequency.
Input frequency (R3755A/R3755TF) : 10 MHz 0 dBm or higher
Input frequency accuracy (R3755A/R3755TF) : Within ±10 ppm
2.1.3. Signal source output connector Outputs measurement signals.
2.1.4. Receiver input connector Connects pass target signals.
2.1.5. Parallel output connector Connects to a controller (Refer to2.3).
(Input: 4 bits, Output: 8 bits, C-MOS level)
NOTE: The model name R3755A is inscribed on this front panel. For the R3755TF and R3755E, the model name
(R3755TF or R3755E) is also inscribed in the same position as the R3755A inscribedposition.

2.2 Front Panel (R3760)
2-2
2.2. Front Panel (R3760)
1 2 3 4 5
Figure 2-2 Front Panel
2.2.1. High stability frequency reference adjustment volume (available with OPT20)
High stability frequency reference adjustment volume is available
when OPT 20 is installed and is used to adjust the high stability fre-
quency reference value.
2.2.2. External reference frequency input connector
Connect when using an external reference frequency.
Input frequency : 10 MHz 0 dBm or higher
Input frequency accuracy : Within ±10 ppm
2.2.3. Measurement signal output port Outputs a measurement signal. This can be used as a reflection mea-
surement port.
2.2.4. Measurement signal input port Connects a measurement signal through a device.
2.2.5. Parallel input and output connector
Connects to a controller (Refer to 2.3).
(Input: 4 bits, Output: 8 bits, C-MOS level)

2.3 Parallel I/O Port
2-3
2.3. Parallel I/O Port
Figure 2-3 Parallel I/O Port
Pin
No. Signal Description Pin
No. Signal Description
4
Input port 0
C-MOS level negative logic input
6
GND
Ground
16 Input port 1 C-MOS level negative logic input 8 GND Ground
3 Input port 2 C-MOS level negative logic input 13 GND Ground
15 Input port 3 C-MOS level negative logic input 14 GND Ground
12 Output port 0 C-MOS level negative logic latch output. 17 GND Ground
24 Output port 1 C-MOS level negative logic latch output. 26 GND Ground
11 Output port 2 C-MOS level negative logic latch output. 5 Maintenance port Caution: Do not connect.
23 Output port 3 C-MOS level negative logic latch output. 7 Maintenance port Caution: Do not connect.
10 Output port 4 C-MOS level negative logic latch output. 18 Maintenance port Caution: Do not connect.
22 Output port 5 C-MOS level negative logic latch output. 19 Maintenance port Caution: Do not connect.
9 Output port 6 C-MOS level negative logic latch output. 2 OPEN Do not connect.
21 Output port 7 C-MOS level negative logic latch output. 20 OPEN Do not connect.
1 GND Ground 25 OPEN Do not connect.
Note1: Input and output: C-MOS 3.3 V
Note2: Compatible connector: Honda Tsushin Kogyo Co., Ltd. HDR-E26MSG1+ or equivalent.
CAUTION: Before connecting (or disconnecting) the cable to (or from) the port, turn off the PC that this option has
been installed in, or the PCI Extension box.

3. BAPI FUNCTIONS
3-1
3. BAPI FUNCTIONS
This chapter describes the Application Programming Interface for Board Instrument (hereafter shortened to
BAPI) functions that are used in Advantest's R3755x/R3760 internal PCI board network analyzers and are
required to generate measurement applications by using Visual Basic 6.0 and Visual Basic 2008.
3.1. Communication Protocol
To use the R3755x/R3760, the server program which controls the R3755x/R3760 must be executed in advance.
Controlling the R3755x/R3760 from a user application program can be achieved by using the BAPI functions
to communicate with the server program.
Winsock (socket communications utilizing the TCP/IP protocol) is used to communicate between the user
application program and the R3755x/R3760 server program.
Figure 3-1, shown below, shows the communication process between the R3755x/R3760 and the User appli-
cation.
Figure 3-1 Communication Protocol
PCI BUS
User application program
Visual Basic
6.0
BAPI
functions
Control
server program
R3755x/R3760
PCI board
Winsock
r
i
v
e
r
s
SH-4
Visual C++
6.0
TCP/IP
Socket

3.2 Internal Data Flow
3-2
3.2. Internal Data Flow
In the R3755x/R3760, basic calculations (port calculation, calibration and parameter conversion) are per-
formed based on the data input to R-ch and A-ch. After which, LOGMAG calculations and phase calculations
are also performed (refer to Figure 3-2). For other formats, calculations must be performed at application level
using unformatted data (Real/Imag).
Port Raw data
R input
A input
calculation
R, A, A/R
Port1 input S11.S21
Port2 input
Figure 3-2 Internal Data Flow
data
LOGMAG
data
PHASE
data
Parameter
conversion
Z, Y, l/S
Data
Calibration
data
Error
correction
·
Normalization
·
Full
calibration
Port extension
Electrical
length
correction