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Agilent 3499A/B/C

Switch/Control System

User’s Manual

3488 Mode Supplement

This manual describes the Agilent 3499A/B/C Switch/Control System

when used in the 3488 mode of operation. This manual is a supplement

to the Agilent 3499A/B/C Switch/Control System User’s Manual (shipped

with the instrument). Adobe Acrobat (PDF) versions of the user’s manual

areavailable at www.agilent.com.

©Copyright Agilent Technologies, Inc. 1999-2002

Agilent 3499A/B/C at a Glance

The Agilent Technologies 3499A/B/C Switch/Control System provides a

convenient mechanical and programming environment for a variety of

plug-in modules. With appropriate plug-in modules, the Switch/Control

System provides high density/high speed switching and digital I/O

capability.

Switch/Control System Features

•Intuitive and easy-to-use user interface

•GPIB (IEEE 488) or RS-232 interface control

•External triggering capability

•Built-in 4-bit digital I/O port

•Store and recall up to 50 customized instrument setups

•SCPI (Standard Commands for Programmable Instruments)

compatibility

•Relay cycle count information for preventive maintenance

•Downloadable firmware upgrades

Agilent 3499A Features

•Five plug-in slots

•Full rack width

Agilent 3499B Features

•Two plug-in slots

•Half rack width

Agilent 3499C Features

•Nine plug-in slots

•Full rack width

Note: Unless otherwise indicated, this manual applies to all Serial Numbers.

Plug-in Modules at a Glance

The Agilent 3499A/B/C mainframes support a variety of plug-in modules

to make test system configuration easy.

Multiplexer Modules

N2260A 40-Channel MUX Module (armature relays)

N2266A 40-Channel MUX Module (reed relays)

N2270A 10-Channel High Voltage MUX Module

44470A 10-Channel MUX Module

44470D 20-Channel MUX Module

General Purpose Relay Modules

N2261A 40-Channel GP Relay Module

N2267A 8-Channel High Current GP Module

44471A 10-Channel GP Relay Module

44471D 20-Channel GP Relay Module

44477A 7-Channel Form-C Relay Module

Matrix Modules

N2262A 4 x 8 Matrix Module

44473A 4 x 4 Matrix Module

High Frequency Switching Modules

N2268A 50Ω3.5GHz Dual 4-to-1 MUX Module

N2272A 1 GHz RF 1-to-9 MUX Module1

N2276A/B Dual 1-to-6 (4) Microwave MUX/Attenuator Module1

44472A Dual 4-Channel VHF Switch Module

44478A/B 50Ω/75Ω 1.3 GHz Multiplexer

44476A 3-Channel 18 GHz Switch Module

44476B 2-Channel Microwave Switch Module

Optical Switch Modules

N2280A Optical Switch Quad 1-to-2 MUX Module

N2281A Optical Switch Dual 1-to-4 MUX Module

N2282A Optical Switch 1-to-8 MUX Module1

Digital I/O Modules

N2263A 32-Bit Digital I/O Module

44474A 16-Bit Digital I/O Module

Multifunction/Special Purpose Modules

N2264A 12-Channel GP & 3-Channel High-current GP & 16-Bit Digital I/O

N2265A 4 x 4 Matrix & 16-Bit Digital I/O Module

44475A Breadboard Module

1These modules are NOT supported in the 3488 Mode of operation.

The Front Panel at a Glance

Note The front panel shown above is the Agilent 3499B. The 3499A and 3499C

front panels are similar and have identical functionality.

1. Power On/Standby 8. Scan Keys (see page 78)

2. Reset Module/Instrument 9. Main Menu

3. Shift/Local 10. Open/Close Relay Channels

4. Store/Recall Instrument State 11. Enter a Value/Confirm Selection

5. Monitor Channel/Port/Module 12. Read/Write Digital I/O Ports

6. View Menu 13. Knob

7. Mode Menu 14. Navigation Arrow Keys

The Display at a Glance

The display is divided into several areas. The channel and slot number is

always displayed on the right corner of the display. The main area,

which is in the center of the display, is primarily used to display channel

status (open or closed), information messages, menu items, prompt infor-

mation, error messages, and so on. Around the display are annunciators

to indicate various states of the instrument operation. The annunciators

are summarized below.

Other annunciators in the display are not used in the Agilent 3499A/B/C

system.

Channel/Slot Number

Annunciators

Annunciator Indication

SCAN Scan is initiated.

MON Instrument is in monitor mode.

VIEW Scan list, errors or relay cycle counts are being viewed.

CONFIG Any configuration key has been pressed.

* Instrument is advancing a scan step.

ADRS Instrument is active on the remote interface.

RMT Instrument is in remote mode.

ERROR Error queue is not empty.

EXT Scan is waiting for external trigger source.

SHIFT Shift key has been pressed.

The Rear Panel at a Glance

The figure below shows the Agilent 3499A rear panel.

The figure below shows the Agilent 3499B rear panel.

Slot 4

Slot 5

Slot 1

Slot 2

Slot 3

GPIB Connector RS-232 Connector

Mini DIN Connector

Power Input

Slot 0

Control Module

Slot 1

Slot 2

GPIB Connector RS-232 Connector

Mini DIN Connector

Power Input

Slot 0

Control Module

The figure below shows the Agilent 3499C rear panel.

Option FP1 (1-slot) and FP2 (2-slot) filler panels can be ordered to cover

any unused slots.

WARNING For protection from electrical shock, the power cord ground must not be

defeated.

The Mini DIN Connector

The rear panel mini DIN connector is used to make connections to

external triggers and the built-in digital I/O port. An Agilent N2289A

cable (mini DIN to D9) can be ordered to assist connections to external

devices. The figure below shows the pins used in the mini DIN connector.

GPIB Connector

RS-232 Connector

Mini DIN Connector

Power Input

Slot 1

Slot 2

Slot 3

Slot 4

Slot 5

Slot 6

Slot 7

(2 slot width)

Slot 8

(3 slot width)

Slot 9

(3 slot width)

Slot 0

Control Module

In This Book

Quick Start Chapter 1 prepares the switch/control system for use and

helps you get familiar with a few of its front-panel features.

Front-Panel Menu Operation Chapter 2 introduces you to the front-

panel menu and describes some of the switch/control system’s menu

features.

System Overview Chapter 3 gives an overview of a switch/control

system, describes how parts of the system work together, and describes

the channel addressing scheme used.

Features and Functions Chapter 4 gives a detailed description of the

switch/control system’s capabilities and operation. This chapter is useful

for operating the switch/controlsystemfrom the front panel or the remote

interface.

Remote Interface Reference Chapter 5 contains the 3488 mode

language reference used to program the switch/control system over a

remote interface.

Error Messages Chapter 6 lists the error messages that may appear as

you are working with the instrument.

Application Programs Chapter 7 contains several remote interface

application programs to help you develop programs for your switch/

control system.

Note This manual does not describe the plug-in modules except in a general

way. Use the Agilent 3499A/B/C User’s Manual (shipped with the

instrument) for complete details. A PDF version is also available at

www.agilent.com.

If you have questions relating to the operation of the Agilent 3499A/B/C,

call 1-800-452-4844 in the United States, or contact your nearest Agilent

Technologies Sales Office.

If your 3499A/B/C fails within one year of purchase, Agilent will either

repair or replace it free of charge. Call 1-877-447-7278 in the United

States (and ask for “Agilent Express”) or contact your local Agilent

Technologies Sales Office.

Contents

Chapter 1 Quick Start 11

To Prepare the Instrument for Use 13

To Install a Module in the 3499A/B/C 15

Basic Operation 17

To Rack Mount the 3499A/B/C 21

Filler Panels 24

Chapter 2 Front-Panel Operation 25

To Power On the Instrument 27

To Select the System Mode 27

To Monitor a Channel or a Slot 28

To Use a Digital I/O Port 30

To View Instrument Errors 35

Scanning Operation 37

To Pair Two Modules Together 40

To Configure for External Trigger 41

To Configure the Power-on State 43

To Configure the Remote Interface 45

To Perform a Self-test 47

To Query the Firmware Revision 48

To Query the Serial Number 49

Local/Remote Control 50

Chapter 3 System Overview 51

Agilent 3499A/B/C Switch/Control System 53

Mainframes Overview 54

Firmware and Control Module Description 55

3488 Mode Differences 57

Plug-in Modules Overview 58

Channel and Slot Addressing 67

Factory Default and Reset States 71

Contents

Chapter 4 Features and Functions 73

Monitoring a Channel or a Slot 75

Switching a Relay Channel 77

Scanning 78

Digital I/O Operation 84

State Storage 94

Error Conditions 96

Self-Test 96

Display Control 97

Relay Cycle Counts 98

Chapter 5 Remote Interface Reference 99

Command Syntax 101

3488 Mode Command Quick Reference 102

3488 Mode Commands 104

Chapter 6 Error Messages 135

Error Messages 136

Self Test Errors 136

Chapter 7 Application Programs 137

Visual C++ Example Program 139

Visual BASIC Example Program 141

BASIC Example Program 143

Index 145

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