Agilent Technologies 66319B User manual

USER’S GUIDE
Agilent Technologies
Model 66319B/D, 66321B/D
Mobile Communications DC Source
Featuring programmable output resistance
(Refer to page 18 for a brief description of the model differences.)
Agilent Part No. 5964-8184
Microfiche No. 5964-8185
Printed in Malaysia: February, 2005

2
Warranty Information
CERTIFICATION
Agilent Technologies certifies that this product met its published specifications at time of shipment from the factory.
Agilent Technologies further certifies that its calibration measurements are traceable to the United States National
Bureau of Standards, to the extent allowed by the Bureau's calibration facility, and to the calibration facilities of other
International Standards Organization members.
WARRANTY
This Agilent Technologies hardware product is warranted against defects in material and workmanship for a period
of one year from date of delivery. Agilent Technologies software and firmware products, which are designated by
Agilent Technologies for use with a hardware product and when properly installed on that hardware product, are
warranted not to fail to execute their programming instructions due to defects in material and workmanship for a
period of 90 days from date of delivery. During the warranty period Agilent Technologies will, at its option, either
repair or replace products which prove to be defective. Agilent does not warrant that the operation for the software
firmware, or hardware shall be uninterrupted or error free.
For warranty service, with the exception of warranty options, this product must be returned to a service facility
designated by Agilent Technologies. Customer shall prepay shipping charges by (and shall pay all duty and taxes)
for products returned to Agilent Technologies for warranty service. Except for products returned to Customer from
another country, Agilent Technologies shall pay for return of products to Customer.
Warranty services outside the country of initial purchase are included in Agilent Technologies' product price, only if
Customer pays Agilent Technologies international prices (defined as destination local currency price, or U.S. or
Geneva Export price).
If Agilent is unable, within a reasonable time to repair or replace any product to condition as warranted, the
Customer shall be entitled to a refund of the purchase price upon return of the product to Agilent Technologies.
LIMITATION OF WARRANTY
The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the
Customer, Customer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the
environmental specifications for the product, or improper site preparation and maintenance. NO OTHER
WARRANTY IS EXPRESSED OR IMPLIED. AGILENT TECHNOLOGIES SPECIFICALLY DISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE THE CUSTOMER'S SOLE AND EXCLUSIVE REMEDIES. AGILENT
SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.
ASSISTANCE
The above statements apply only to the standard product warranty. Warranty options, extended support contacts,
product maintenance agreements and customer assistance agreements are also available. Contact your nearest
Agilent Technologies Sales and Service office for further information on Agilent Technologies' full line of Support
Programs.

3
Safety Summary
The following general safety precautions must be observed during all phases of operation of this instrument.
Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety
standards of design, manufacture, and intended use of the instrument. Agilent Technologies assumes no liability
for the customer's failure to comply with these requirements.
GENERAL
This product is a Safety Class 1 instrument (provided with a protective earth terminal). The protective features of
this product may be impaired if it is used in a manner not specified in the operation instructions.
Any LEDs used in this product are Class 1 LEDs as per IEC 825-1.
This ISM device complies with Canadian ICES-001. Cet appareil ISM est conforme à la norme NMB-001 du Canada.
ENVIRONMENTAL CONDITIONS
This instrument is intended for indoor use in an installation category II, pollution degree 2 environment. It is
designed to operate at a maximum relative humidity of 95% and at altitudes of up to 2000 meters. Refer to the
specifications tables for the ac mains voltage requirements and ambient operating temperature range.
BEFORE APPLYING POWER
Verify that the product is set to match the available line voltage, the correct fuse is installed, and all safety
precautions are taken. Note the instrument's external markings described under "Safety Symbols".
GROUND THE INSTRUMENT
To minimize shock hazard, the instrument chassis and cover must be connected to an electrical ground. The
instrument must be connected to the ac power mains through a grounded power cable, with the ground wire firmly
connected to an electrical ground (safety ground) at the power outlet. Any interruption of the protective (grounding)
conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in
personal injury.
ATTENTION: Un circuit de terre continu est essentiel en vue du fonctionnement sécuritaire de l'appareil.
Ne jamais mettre l'appareil en marche lorsque le conducteur de mise … la terre est d‚branch‚.
FUSES
Only fuses with the required rated current, voltage, and specified type (normal blow, time delay, etc.) should be
used. Do not use repaired fuses or short-circuited fuseholders. To do so could cause a shock or fire hazard.
Vous devrez impérativement utiliser des fusibles calibrés aux spécifications de courant, tension et type
(coupure, délai de coupure, etc ...). N'utilisez jamais de fusibles réparés et ne court-circuitez pas les supports
de fusibles. Sinon, vous risquez de provoquer un choc électrique ou un incendie.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
DO NOT REMOVE THE INSTRUMENT COVER
Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be
made only by qualified service personnel.
Instruments that appear damaged or defective should be made inoperative and secured against unintended
operation until they can be repaired by qualified service personnel.

4
SAFETY SYMBOLS
Direct current
Alternating current
Both direct and alternating current
Three-phase alternating current
Earth (ground) terminal
Protective earth (ground) terminal
Frame or chassis terminal
Terminal is at earth potential. Used for measurement and control circuits designed to be
operated with one terminal at earth potential.
Terminal for Neutral conductor on permanently installed equipment
Terminal for Line conductor on permanently installed equipment
On (supply)
Off (supply)
Standby (supply). Units with this symbol are not completely disconnected from ac mains when
this switch is off. To completely disconnect the unit from ac mains, either disconnect the power
cord or have a qualified electrician install an external switch.
In position of a bi-stable push control
Out position of a bi-stable push control
Caution, risk of electric shock
Caution, hot surface
Caution (refer to accompanying documents)
WARNING The WARNING sign denotes a hazard. It calls attention to a procedure, practice, or the like,
which, if not correctly performed or adhered to, could result in personal injury. Do not proceed
beyond a WARNING sign until the indicated conditions are fully understood and met.
Caution The CAUTION sign denotes a hazard. It calls attention to an operating procedure, or the like,
which, if not correctly performed or adhered to, could result in damage to or destruction of part
or all of the product. Do not proceed beyond a CAUTION sign until the indicated conditions
are fully understood and met.

5
DECLARATION OF CONFORMITY
According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014
Manufacturer’s Name and Address
Responsible Party Alternate Manufacturing Site
Agilent Technologies, Inc. Agilent Technologies (Malaysia) Sdn. Bhd
550 Clark Drive, Suite 101
Budd Lake, New Jersey 07828
USA
Malaysia Manufacturing
Bayan Lepas Free Industrial Zone, PH III
11900 Penang,
Malaysia
Declares under sole responsibility that the product as originally delivered
Product Names a) Mobile Communications DC Source
b) System DC Power Supply
Model Numbers a) 66332A, 66312A, 66311B, 66311D
66309B, 66309D, 66319B, 66319D, 66321B, 66321D
b) 6631B, 6632B, 6633B, 6634B 6611C
6612C, 6613C, 6614C
Product Options This declaration covers all options and customized products based on
the above products.
Complies with the essential requirements of the Low Voltage Directive 73/23/EEC and the EMC
Directive 89/336/EEC (including 93/68/EEC) and carries the CE Marking accordingly.
EMC Information ISM Group 1 Class A Emissions
As detailed in Electromagnetic Compatibility (EMC), Certificate of Conformance Number
CC/TCF/00/030 based on Technical Construction File (TCF) HPNJ8, dated
Apr. 25, 2000
Assessed by: Celestica Ltd, Appointed Competent Body
Westfields House, West Avenue
Kidsgrove, Stoke-on-Trent
Straffordshire, ST7 1TL
United Kingdom
Safety Information and Conforms to the following safety standards.
IEC 61010-1:2001 / EN 61010-1:2001
Canada: CSA C22.2 No. 1010.1:1992
UL 61010B-1: 2003
This DoC applies to above-listed products placed on the EU market after:
January 1, 2004
Date Bill Darcy/ Regulations Manager
For further information, please contact your local Agilent Technologies sales office, agent or distributor, or
Agilent Technologies Deutschland GmbH, Herrenberger Stra
β e 130, D71034 Böblingen, Germany
Revision: B.00.00 Issue Date: Created on 11/24/2003 3:14
PM Document No. Eagle.11.24.doc
To obtain the latest Declaration of Conformity, go to http://regulations.corporate.agilent.com and click on “Declarations of
Conformity.”

6
Acoustic Noise Information
Herstellerbescheinigung
Diese Information steht im Zusammenhang mit den Anforderungen der
Maschinenläminformationsverordnung vom 18 Januar 1991.
* Schalldruckpegel Lp <70 dB(A)
* Am Arbeitsplatz
* Normaler Betrieb
* Nach EN 27779 (Typprüfung).
Manufacturer's Declaration
This statement is provided to comply with the requirements of the German Sound Emission Directive,
from 18 January 1991.
* Sound Pressure Lp <70 dB(A)
* At Operator Position
* Normal Operation
* According to EN 27779 (Type Test).
Printing History
The edition and current revision of this manual are indicated below. Reprints of this manual containing
minor corrections and updates may have the same printing date. Revised editions are identified by a new
printing date. A revised edition incorporates all new or corrected material since the previous printing
date.
Changes to the manual occurring between revisions are covered by change sheets shipped with the
manual. In some cases, the manual change applies only to specific instruments. Instructions provided on
the change sheet will indicate if a particular change applies only to certain instruments.
This document contains proprietary information protected by copyright. All rights are reserved. No part
of this document may be photocopied, reproduced, or translated into another language without the prior
consent of Agilent Technologies. The information contained in this document is subject to change without
notice.
©Copyright 2000, 2001, 2003, 2005, 2008 Agilent Technologies, Inc. Edition 1 ____May, 2000
Update 1 ____January, 2001
Update 2 ____May, 2003
Update 3 ____February, 2005
Update 4 ____September, 2008

7
Table of Contents
Warranty Information 2
Safety Summary 3
Declaration Page 5
Acoustic Noise Information 6
Printing History 6
Table of Contents 7
1 - QUICK REFERENCE 9
The Front Panel - At a Glance 9
The Rear Panel - At a Glance 10
Instrument Configuration 10
Front Panel Number Entry 11
Front Panel Annunciators 12
Immediate Action Keys 12
Front Panel Menus - At a Glance 13
SCPI Programming Commands - At a Glance 14
2 - GENERAL INFORMATION 15
Document Orientation 15
Safety Considerations 16
Options and Accessories 16
Description and Model Differences 17
Option 521 Description (Agilent 66319B/D only) 21
3 - INSTALLATION 23
Installation and Operation Checklist 23
Inspection 24
Location 25
Input Connections 26
Output Connections 26
DVM Connections 34
External Protection and Trigger Input Connections 36
Digital I/O Connections 38
Computer Connections 38
4 - TURN-ON CHECKOUT 39
Checkout Procedure 39
In Case of Trouble 41
5 - FRONT PANEL OPERATION 43
Introduction 43
Front Panel Description 43
System Keys 45
Function Keys 46
Entry Keys 49
Examples of Front Panel Programming 50
6 - INTRODUCTION TO PROGRAMMING 59
External References 59
VXIplug&play Power Products Instrument Drivers 60
GPIB Capabilities of the DC Source 61
Introduction to SCPI 61
Types of SCPI Commands 62

8
Types of SCPI Messages 63
SCPI Data Formats 65
SCPI Command Completion 66
Using Device Clear 66
SCPI Conformance Information 67
7 - PROGRAMMING THE DC SOURCE 69
Introduction 69
Programming the Output 69
Triggering Output Changes 71
Making Basic Measurements 73
Making Enhanced Measurements 74
Making DVM Measurements 77
Triggered Measurements 78
Programming the Status Registers 82
Inhibit/Fault Indicator 87
8 - LANGUAGE DICTIONARY 89
Introduction 89
Calibration Commands 94
Display Commands 97
Measurement Commands 98
Output Commands 108
Status Commands 117
System Commands 121
Trigger Commands 122
Common Commands 130
A - SPECIFICATIONS 137
Specifications 137
Supplemental Characteristics 138
B - PERFORMANCE, CALIBRATION, AND CONFIGURATION 141
Introduction 141
Equipment Required 141
Measurement Techniques 142
Performance Tests 143
Constant Voltage (CV) Tests 144
Constant Current (CC) Tests 146
Resistance Tests 150
DVM Tests 151
Performance Test Equipment Form 151
Performance Test Record Form 152
Performing the Calibration Procedure 154
Performing the Configuration Procedure 159
C - ERROR MESSAGES 161
Error Number List 161
D - EXAMPLE PROGRAMS 165
Pulse Measurements 165
E - LINE VOLTAGE CONVERSION 171

9
1
Quick Reference
The Front Panel - At a Glance
1A 14-character display
shows output measurements
and programmed values.
2Annunciators indicate
operating modes and status
conditions.
3Rotary control sets voltage,
current, and menu parameters.
Use and
to set the resolution; then adjust
the value with the knob.
66319D DUAL OUTPUT
Mobile Communications DC Source
LINE
Off
On
Local Address
Recall
Meter
Protect
Voltage
Current
Output
Output
On/Off
Enter
Number
Enter
Cir Entry
OV
CalOCPProt Cir
Save
Error
12345
67890
.
-
SYSTEM FUNCTION ENTRY
CV CC Unr Dis OCP Prot Cal Shift Rmt Addr Err SRQ
Input
Backspace
1 2 3
4 5 6 7
Channel Res
4Turns the dc
source on and off.
5System keys:
♦return to Local mode
♦select output channel
♦set GPIB address
♦display SCPI error
codes
♦save and recall
instrument states
♦display firmware
revision and serial
number.
6Function keys:
♦enable/disable the
output
♦select metering
functions
♦program voltage and
current
♦set and clear protection
functions
♦and
scroll through the front
panel menu commands.
7Entry keys:
♦enter values
♦increment or
decrement values
♦and
select front panel
menu parameters.
♦and
select a digit in
the numeric entry
field.
Ä
Ã
Å
ÃÄ
dc
Æ

1 - Quick Reference
10
The Rear Panel - At a Glance
1DVM inputs.
Connector plug is
removable.
2GPIB (IEEE-488)
interface connector. 3INH/FLT connector. Can be configured for Digital I/O
and Trigger input. Connector
plug is removable.
WARNING: NO OPERATOR SERVICEABLE PARTS INSIDE, REFER SERVICING TO SERVICE TRAINED PERSONNEL.
WARNING: FOR CONTINUED FIRE PROTECTION, USE SPECIFIED LINE FUSE
-++S
INH FLT
+-+
2 3
4 5
1
6
-S
OUTPUT 2
0 - 12V / 0 - 1.5A OUTPUT 1 0 - 15V / 0 - 3A
-S
+S
+-
!
DVM
+-
4Output 2 connector
(Agilent 66319B/D only).
Connector plug is removable.
5Output 1 connector.
Connector plug is removable.
IMPORTANT: Install this connector with
its supplied sense jumpers before applying
power to the unit.
6Power cord
connector (IEC 320)
Instrument Configuration
Use the front panel Address key to configure the interface
Refer to “Front Panel Menus - At a Glance”
♦Enter the GPIB bus address.
♦Display the firmware revision and serial number.

Quick Reference - 1
11
Front Panel Number Entry
Enter numbers from the front panel using one the following methods:
Use the arrow keys and knob to change voltage or current settings
NOTE: The output must be ON to see the displayed values change in Meter mode. With the
output enabled, this method changes the output voltage or current immediately.
Use the Function keys and knob to change the displayed settings
Use the arrow keys to edit individual digits in the displayed setting
Increments the flashing digit
Decrements the flashing digit
Moves the flashing digit to the right
Moves the flashing digit to the left
Enters the value when editing is complete
Use the Function keys and Entry keys to enter a new value
NOTE: If you make a mistake, use the Backspace key to delete the number, or press the Meter
key to return to meter mode.

1 - Quick Reference
12
Front Panel Annunciators
CV Output 1 or output 2 is operating in constant voltage mode.
CC Output 1 or output 2 is operating in constant current mode.
Unr Output 1 or output 2 is unregulated.
Dis The output is OFF. Press the Output On/Off key to turn the output on.
OCP The over-current protection state is ON. Press the OCP key to turn over-current
protection off.
Prot Indicates that the output has been disabled by one of the protection features.
Press the Prot Clear key to clear the protection condition.
Cal Calibration mode is ON. Scroll to the Cal Off command and press the Enter key
to exit the calibration mode.
Shift The Shift key has been pressed.
Rmt The remote programming interface is active. Press the Local key to return the
unit to front panel control.
Addr The interface is addressed to talk or listen.
Err There is an error in the SCPI error queue. Press the Error key to view the error
code.
SRQ The interface is requesting service.
Immediate Action Keys
Toggles the output of the selected output between the ON and OFF states.
When coupled, turns both output channels ON or OFF.
Activates front panel control when the unit is in remote mode (unless a Lockout
command is in effect).
Resets the protection circuit and allows the unit to return to its last programmed
state.
A toggle switch that enables or disables overcurrent protection.
Output
On/Off
Local
Prot ClrShift
OCP
Shift

Quick Reference - 1
13
Front Panel Menus - At a Glance
ADDRESS 7 Sets the GPIB Address
LANG SCPI Selects language (SCPI)
ROM: A.00.00 Displays the firmware revision of the instrument
SN: US12345678 Displays the serial number of the instrument
*RCL 0 Recalls the instrument state
*SAV 0 Saves the present instrument state
ERROR 0 Displays the number of errors in the SCPI error queue
2 5.000V 0.104A Toggles the display between output 1 and output 2 (output 2 shown)
1 12.000V 1 0.204A Measures the output voltage and current (output 1 shown)
1 12.500V MAX Measures the peak output voltage
1 1.000V MIN Measures the minimum output voltage
1 12.330V HIGH Measures the high level of a voltage pulse waveform
1 0.080V LOW Measures the low level of a voltage pulse waveform
1 12.000V RMS Measures the rms voltage
1 0.350A MAX Measures the peak output current
1 0.050A MIN Measures the minimum output current
1 0.400A HIGH Measures the high level of a current pulse waveform
1 0.012A LOW Measures the low level of a current pulse waveform
1 0.210A RMS Measures the rms current
1 12.000V DC:DVM Measures the dc voltage on the DVM input 1
1 12.000V RMS:DVM Measures the rms voltage on the DVM input 1
1 VOLT 12.000
2 VOLT 2.000 Sets the voltage of output 1 on all models
Sets the voltage of output 2 2
1 CURR 2.000
2 CURR 1.000 Sets the current limit of output 1 on all models
Sets the current limit of output 2 2
1 RES 1.000 Sets the resistance of output 1 on all models
OVERCURRENT Protection status (example shows overcurrent tripped)
*RST Places the dc source in the factory-default state
COUPLING ALL Couples or decouples output 1 and output 2 (NONE or ALL) 1
COMP LLOCAL Sets the output compensation (HREMOTE, LREMOTE, HLOCAL or LLOCAL)
PON:STATE RST Select the power-on state command (RST or RCL0)
PROT:DLY 0.08 Sets the output protection delay in seconds
RI LATCHING Sets the remote inhibit mode (LATCHING, LIVE, or OFF)
DFI OFF Sets the discrete fault indicator state (ON or OFF)
DFI:SOUR OFF Selects the DFI source (QUES, OPER, ESB, RQS, or OFF)
PORT RIDFI Sets the output port functions (RIDFI, DIGIO, or TRIGGER)
DIGIO 7 Sets and reads the I/O port value (0 through 7)
SENSE:PROT OFF Enables or disables the open sense lead detect circuit (ON or OFF)
1 REL:MODE DD Sets the relay mode for Option 521 units (DD, HD, DH, or HH) (output 1 shown)
VOLT:PROT 10.000 Sets the programmable voltage limit for output 1
PROT:STAT ON Enables or disables overvoltage protection for output 1 (ON or OFF)
CURR:RANG MAX Sets the current range (3A, 1A, 0.02A, or AUTO)
CURR:DET ACDC Sets the current measurement detector (ACDC or DC)
TINT 46.8 Sets the time interval for a front panel measurement in seconds
POINT 2048 Sets the buffer size for a front panel measurement
CAL ON Accesses calibration menu (See Appendix B)
Use and to select parameters (table shows factory defaults). Use to exit any menu.
1Only valid for Agilent Model 66319B/D 2Only valid for Agilent Model 66321D/66319D
Address
d
d
Recall
Save Shift
Error
d
d
Shift
Meter
d
d
d
d
d
d
d
d
d
Channel
d
Shift
Voltage
Protect
Current
Output
d
d
d
d
d
d
d
d
d
d
d
d
OV Shift
d
Shift
Shift
Res
Input
d
Cal Shift
Meter
ÅÆ
d
d

1 - Quick Reference
14
SCPI Programming Commands - At a Glance
NOTE: Some [optional] commands have been included for clarity. Refer to chapter 8 for a
complete description of all programming commands.
ABORt SENSe
CALibrate :CURRent :RANGe <n>
:CURRent [:POSitive] :DETector ACDC | DC
:MEASure :LOWRange :FUNCtion “VOLT” | “CURR” | "DVM"
:R3 :LEAD :STATus?
:AC :PROTection :STATe <bool>
:CURRent2
1:SWEep :OFFSet :POINts <n>
:DATA <n> :POINts <n>
:DATE <date> :TINTerval <n>
:DVM
2:WINDow :TYPE “HANN” | “RECT”
:LEVel P1 | P2 [SOURce:]
:PASSword <n> CURRent <n>
:RESistance :TRIGgered <n>
:SAVE :PROTection :STATe <bool>
:STATe <bool>[, <n>] CURRent2 <n> 1
:VOLTage [:DC] :TRIGgered <n>
1
:VOLTage2
1DIGital :DATA <n>
DISPlay :FUNCtion RIDF | DIG | TRIG
<bool> RESistance <n>
:CHANnel <channel>
1:TRIGgered <n>
:MODE NORMal | TEXT VOLTage <n>
:TEXT <display_string> :TRIGgered <n>
FORMat :PROTection <n>
[:DATA] ASCII | REAL [,length] :STATe <bool>
:BORDer NORM | SWAP VOLTage2 <n> 1
INITiate :TRIGgered <n>
1
:SEQuence[1|2] STATus
:NAME TRANsient | ACQuire :PRESet
:CONTinuous :SEQuence[1], <bool> :OPERation [:EVENt]?
:NAME TRANsient, <bool> :CONDition?
INSTrument :ENABle <n>
:COUPling:OUTPut:STATe NONE | ALL 1:NTRansition <n>
MEASure :PTRansition <n>
:CURRent2 [:DC]?
1:QUEStionable [:EVENt]?
:VOLTage2 [:DC]?
1:CONDition?
MEASure | FETCh :ENABle <n>
:ARRay :CURRent? :NTRansition <n>
:VOLTage? :PTRansition <n>
[:CURRent] [:DC]? SYSTem
:ACDC? :ERRor?
:HIGH? :LANGuage SCPI
:LOW? :VERSion?
:MAX? TRIGger
:MIN? :SEQuence2| :ACQuire [:IMMediate]
:DVM [:DC]?
2:COUNt :CURRent <n>
:ACDC?2 :DVM<n>
2
:VOLTage [:DC]? :VOLTage <n>
:ACDC? :HYSTeresis:CURRent <n>
:HIGH? :DVM <n>
2
:LOW? :VOLTage <n>
:MAX? :LEVel :CURRent <n>
:MIN? :DVM <n>
2
OUTPut [1|2] :VOLTage <n>
<bool> :SLOPe :CURRent POS | NEG | EITH
:COMPensation :MODE LLOCAL | HLOCAL |LREMOTE | HREMOTE :DVM POS | NEG | EITH 2
:DFI <bool> :VOLTage POS | NEG | EITH
:SOURce QUES |OPER | ESB | RQS | OFF :SOURce BUS |INT | EXT
:PON :STATe RST |RCL0 [:SEQuence1| :TRANsient][:IMMediate]
:PROTection :CLEar :SOURce BUS
:DELay <n> :SEQuence1 :DEFine TRANsient
:RELay :MODE DD | HD | DH | HH 1:SEQuence2 :DEFine ACQuire
:RI :MODE LATCHing | LIVE |OFF
1 Only valid for Agilent 66319B/D 2 Only valid for 66321D/66319D

15
2
General Information
Document Orientation
This manual describes the operation of the Agilent Model 66321B/D Mobile Communications and the
Agilent Model 66319B/D Dual Output DC Source. Agilent Models 66321D and 66319D have an
additional DVM measurement input on the rear panel. Unless otherwise noted, all models will be
referred to by the description "dc source" throughout this manual.
The following Getting Started Map will help you find the information you need to complete the specific
task that you want to accomplish. Refer to the table of contents or index of each guide for a complete list
of the information contained within.
Getting Started Map
Task Where to find information
Quick Reference Section Chapter 1
General information
Model differences
Capabilities and characteristics
Chapter 2
Installing the unit
Line connections
Computer connections
Load connections
Chapter 3
Checking out the unit
Verifying proper operation
Using the front panel
Calibrating the unit
Chapter 4
Using the front panel
Front panel keys
Front panel examples
Chapter 5
Using the programming interface
GPIB interface Chapter 6
Programming the unit using SCPI commands
SCPI commands
SCPI programming examples
SCPI language dictionary
Chapters 7 and 8
Installing the VXIplug&play instrument driver
NOTE: The driver must be installed on your pc to access
the on-line information. Drivers are available on the web
at www.agilent.com/find/drivers.
Chapter 6

2 - General Information
16
Safety Considerations
This dc source is a Safety Class 1 instrument, which means it has a protective earth terminal. That
terminal must be connected to earth ground through a power source equipped with a ground receptacle.
Refer to the Safety Summary page at the beginning of this guide for general safety information. Before
installation or operation, check the dc source and review this guide for safety warnings and instructions.
Safety warnings for specific procedures are located at appropriate places in the guide.
Options and Accessories
Table 2-1. Options
Option Description
100 87−106 Vac, 47−63 Hz
120 104−127 Vac, 47−63 Hz
220 191−233 Vac, 47−63 Hz
230 207−253 Vac, 47−63 Hz
8ZJ Delete instrument feet option
004 Output compensation is factory set to HRemote mode for best transient response.
(Refer to chapter 3, under "Output Compensation" for more information)
AXS1Rack mount kit for two side-by-side units of equal depth. Consists of:
Lock-link kit (p/n 5061-9694) and Flange kit (p/n 5062-3974)
1CM1Rack mount kit for one unit (p/n 5062-3972)
521 Solid-state relays to connect and disconnect the output of the dc source (Agilent 66319B/D
only). Provides the ability to either Hot-switch or Dry-switch the solid state relays.
053 Device characterization software for displaying current and voltage measurements.
1Support rails are required when rack mounting units. Use E3663A support rails for Agilent rack cabinets. If you are
using non-Agilent rack cabinets, contact the rack manufacturer to obtain support rails for your cabinet.
Table 2-2. Accessories
Item Part Number
GPIB cables 1.0 meter (3.3 ft) Agilent 10833A
2.0 meters (6.6 ft) Agilent 10833B
4.0 meters (13.2 ft) Agilent 10833C
0.5 meters (1.6 ft) Agilent 10833D
Rack mount with slide - for two side-by-side units of different depths 5062-3996; 1494-0015
Rack mount - for two side by side units of different depths 5062-3996
Rack mount with slide - for one unit 5062-3996; 1494-0015;
5062-4022

General Information - 2
17
Description and Model Differences
Agilent 66321B
The Agilent 66321B Mobile Communications DC Source is a high performance dc power source that
provides peak current sourcing and rapid, basic measurements in a compact, half-rack box. It is designed
to simplify the testing of digital wireless communications products. Excellent voltage transient response
characteristics prevent test interruptions due to triggering of low voltage phone shutdown. The 15 volt
source and 5A peak current capability provides compatibility with a number of communications
standards, including: GSM, CDMA, TDMA, PCS, DECT, TERA, PHS, NADC, PHS, and others.
Additional capabilities include fast dynamic measurement and analysis of voltage and current waveforms
combined with precision current measurement. This lets you characterize cellular phone current drain
under all operating conditions. Programmable output resistance lets you emulate the effects of the
internal resistance of a battery. Negative resistance programming lets you compensate for voltage drops
that occur between the remote sense points and the phone terminals. Programmable output compensation
lets you optimize the transient response for various wire lengths and phone capacitances. Figure 2-1
describes the output characteristic of the dc source.
Agilent 66319B
The Agilent 66319B Mobile Communications DC Source includes all of the capabilities of the Agilent
66321B with the addition of a second, electrically-isolated output. Figure 2-2 describes output
characteristic of this second output, which is primarily used to provide voltage or current for a charger
input on the device under test. The second output has all of the basic programmable features as the main
output, with the exception of the waveform measurement capability, open sense lead detect capability,
resistance programming, overvoltage protection, and low and middle current measurement ranges.
Agilent 66321D and 66319D
The Agilent 66321D and 66319D Mobile Communications DC Sources also contain an auxiliary DVM,
with input terminals located on the rear panel. This provides limited, low voltage dc and ac measurement
capability, which can be used to monitor test point voltages on the unit under test as well as on the test
fixture. The common mode voltage range is from −4.5 Vdc to +25 Vdc relative to the minus terminal of
output 1. The DVM is programmable from the front panel of the instrument as well as remotely using
SCPI programming commands.
Common Features
♦Voltage, current, and resistance control with 12-bit programming resolution on output 1.
! 3-ampere current source capability (up to 5 amperes for 7 milliseconds).
! Output resistance programming capability from −40 milliohm to 1 ohm.
! Four output compensation modes for a variety of wiring configurations.
♦Extensive measurement capability on output 1
! dc voltage and current.
! rms and peak voltage and current.
! Three-range current measurement capability up to approximately 7.0 amperes.
! 16-bit measurement resolution.

2 - General Information
18
Triggered acquisition of digitized current and voltage waveforms
External measurement trigger input on units with firmware revision A.03.01 and up
♦Open sense lead protection on output 1.
♦Automatic overvoltage protection tracking.
♦Over-temperature, RI/DFI protection features, programmable voltage limit and current limit.
♦Non-volatile state storage and recall with SCPI command language.
♦User-configurable power-on/reset settings (see Appendix B).
Table 2-3. Agilent Model Differences
Item 66321B 66321D 66319B 66319D 66311B/D166309B/D1
0 - 1 A range current
measurements (output 1) YES YES YES YES NO NO
0 - 20 mA range current
measurements (output 1) YES YES YES YES YES YES
4-mode output compensation
(output 1) YES YES YES YES 2 modes 2 modes
Auxiliary output (output2) NO NO YES YES NO YES
External DVM input NO YES NO YES 66311D only 66309D only
Output resistance
programming (output 1) YES YES YES YES NO NO
Automatic overvoltage
tracking (output 1) YES YES YES YES NO NO
Compatibility commands NO NO NO NO YES NO
External measurement trigger
input2YES YES YES YES NO NO
1Earlier models not covered in this manual (order manual p/n 5964-8125)
2Available only on units with firmware revision A.03.01 and up
Front Panel Controls
The front panel has both rotary and keypad controls for setting the output voltage and current. The panel
display provides digital readouts of a number of output measurements. Annunciators display the operating
status of the dc source. System keys let you perform system functions such as setting the GPIB address
and recalling operating states. Front panel Function keys access the dc source function menus. Front
panel Entry keys let you select and enter parameter values. Refer to chapter 5 for a complete description
of the front panel controls.
Remote Programming
NOTE: The dc sources described in this manual can only be programmed using the SCPI
programming language.
The dc source may be remotely programmed via the GPIB bus. GPIB programming is with SCPI
commands (Standard Commands for Programmable Instruments), which make dc source programs
compatible with those of other GPIB instruments. Dc source status registers allow remote monitoring of a
wide variety of dc source operating conditions. Refer to chapters 6 and 7 for more information. Chapter 8
is a language dictionary of all SCPI commands that can be used to program the dc source.

General Information - 2
19
Output 1 Characteristic
The dc source's main output (output 1) characteristic is shown in the following figure. The main output of
the dc source may be adjusted to any value within the boundaries shown.
Output
Voltage
Output
Current
3A
15V ISET
-2.8A
VSET
CCresistiveloadline
CVresistiveloadline
0
1
2
+-
5A
-1.2A
Peak Current
capability for up
to 7 ms shown
by dotted lines
Figure 2-1. Dc Source Output 1 Characteristic
The dc source is capable of providing a constant dc output of 15 volts with up to 3 amperes of current. It
is capable of sourcing peak currents of up to 5 amperes -- provided the peak current pulse does not
exceed 7 milliseconds, and the average current requirement does not exceed 3 amperes. If the unit
attempts to draw current for longer than 7 milliseconds, the current limit amplifier will limit the current
to a maximum of 3.0712 amps. The peak current capability is illustrated by the dotted line in Figure 2-1.
NOTE: To source up to 5 amperes of current for up to 7 milliseconds, the current limit must
be programmed for greater than 3 amperes (up to a maximum of 3.0712 A).
The dc source can operate in either constant voltage (CV) or constant current (CC) over the rated output
voltage and current. Although the dc source can operate in either mode, it is designed as a constant
voltage source. This means that the unit turns on in constant voltage mode with the output voltage rising
to its Vset value. There is no command for constant current operation. The only way to turn the unit on in
constant current mode is by placing a short across the output and then enabling or turning the output on.
Note that the dc source cannot be programmed to operate in a specific mode. After initial turn-on, the
operating mode of the unit will be determined by the voltage setting, current setting, and the load
resistance. In figure 2-1, operating point 1 is defined by the load line traversing the positive operating
quadrant in the constant voltage region. Operating point 2 is defined by the load line traversing the
positive operating quadrant in the constant current region.
Figure 2-1 also shows a single range −two quadrant capability. This means that the dc source is capable
of sourcing as well as sinking current over the output voltage range from zero volts to the rated voltage.
This negative current sinking capability provides fast downprogramming of the output of the dc source. It
can also be used to sink current from a battery charger, thus providing battery charger test capability. The
negative current is not programmable, and varies linearly from approximately 1.2 amperes at the full
rated voltage, to approximately 2.8 amperes at zero output voltage.

2 - General Information
20
NOTE: Operating the dc source beyond its output ratings may cause the output to become unregulated.
This is indicated by the UNR annunciator on the front panel. The output may also become
unregulated if the ac line voltage drops below the minimum rating specified in Appendix A.
Programmable Output Resistance
Programmable output resistance lets you emulate the internal resistance of a cell phone battery, which
causes the voltage at the phone to drop as the phone draws more current. Different types of phone
batteries have different internal resistance values, which typically fall in a range of several hundred
milliohms. The internal resistance of a phone battery also changes with age and the number of times the
battery is recharged. Therefore, to evaluate the performance of a cell phone using various battery
characteristics, use this feature to specify a desired battery resistance.
Alternatively, programmable output resistance can be used to keep the voltage at the phone terminals as
constant as possible. In this case, you may program a negative output resistance. This compensates for
any additional voltage drop in the load leads between the remote sense points and the phone terminals
(see Figure 3-4). In phone test fixtures, the cell phone terminals may be located up to 50 centimeters
away from the connector where the remote sense terminals of the dc source are connected. This results in
a small voltage drop in the wires between the remote sense terminals and the phone terminals. If it is
critical that the steady-state voltage at the phone terminals be equal to the programmed voltage of the dc
source, a small negative output resistance can be programmed to compensate for this voltage drop.
Output 2 Characteristic
As shown in the following figure, Agilent 66319B/D units have a second output rated at 12 V and 1.5A.
The second output has all of the primary programmable features as the main output, with the exception of
the waveform measurement capability, the open sense lead detect capability, overvoltage protection, and
low current range.
Output
Voltage
Output
Current
1.5A
+12V
0
+
-
3.0A
Peak Current
capability for up
to 1 ms shown
by dotted lines
Figure 2-2. Output 2 Characteristic
Tables A-1 through A-3 document the specifications and supplemental characteristics of the Agilent dc
sources documented in this manual.