S
Agilent 81130A 400/660MHz Pulse/Data Generator
Quick Start Guide
S1
Front Panel Display and Softkeys
Mode / Parameter Area Modify / Enter Area
Use the CURSOR keys to
move the entry focus to a
mode, parameter format,
Channel 1
Column
or
parameter value
Channel 2
Column
Use the KNOB to select a
mode or modify parameters
and formats
Press ENTER or a UNIT key to
confirm parameter changes
ON Freq 50.00MHz OFF
1
OFF OFF
Entry
Focus
Delay
DtyCyc
Press a SOFTKEY to access
the required entry screen
0ps
50.0%
Screen Selection Area
Delay 0ps
Width 100.0ns
TIMING PATTERNLEVELSMODE/TRG
2
MODIFY
50.0
%
GRAPH
MORE
Press MORE key to access
the additional screen menus:
LIMITS TRG-LEV MEMCARD CONFIG
Quick Start Guide
Agilent 81130A 400/660 MHz
Pulse/Data Generator
Part No. 81130-91020
Printed in Germany March 2000
Edition 1.0, E0300
Notice
Notice
Copyright
1998 Agilent Technologies 1998, 2000. All rights reserved.
No part of this manual may be reproduced in any form or by any means
(including electronic storage and retrieval or translation into a foreign
language) without prior agreement and written consent from Agilent
Technologies Inc. as governed by United States and international
copyright laws.
Notice
The material contained in this document is subject to change without
notice. Agilent Technologies makes no warranty of any kind with regard
to this material, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. Agilent
Technologies shall not be liable for errors contained herein or for
incidental or consequential damages in connection with the furnishing,
performance, or use of this material.
Warranty
This Agilent Technologies product has a warranty against defects in
material and workmanship for a period of three years from date of
shipment. During the warranty period, Agilent Technologies will, at its
option, either repair or replace products that prove to be defective. For
warranty service or repair, this product must be returned to a service
facility designated by Agilent Technologies. The Buyer shall pay Agilent
Technologies round-trip travel expenses. For products returned to
Agilent Technologies for warranty service, the Buyer shall prepay
shipping charges to Agilent Technologies and Agilent Technologies shall
pay shipping charges to return the product to the Buyer. However, the
Buyer shall pay all shipping charges, duties and taxes for products
returned to Agilent Technologies from another country.
4
Notice
Agilent Technologies warrants that its software and firmware designated
by Agilent Technologies for use with an instrument will execute its
programming instructions when properly installed on that instrument.
Agilent Technologies does not warrant that the operation of the
instrument software, or firmware, will be uninterrupted or error free.
Limitation of Warranty
The foregoing warranty shall not apply to defects resulting from
improper or inadequate maintenance by the Buyer, Buyer-supplied
software or interfacing, unauthorized modification or misuse, operation
outside of the environmental specifications for the product, or improper
site preparation or 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 supplied are the Buyer's sole and exclusive remedies.
Agilent Technologies shall not be liable for any direct, indirect, special,
incidental, or consequential damages, whether based on contract, tort or
any other legal theory.
Certification
Agilent Technologies certifies that this product met its published
specifications at the time of shipment. Agilent Technologies further
certifies that its calibration measurements are traceable to the United
States Institute of Standards and Technology, to the extent allowed by
the Institute's calibrating facility, and to the calibration facilities of other
International Standards Organization members.
Services and Support
Any adjustment, maintenance, or repair of this product must be
performed by qualified personnel. Contact your customer engineer
through your local Agilent Technologies Service Center. You can find a
list of local service representatives on the Web at:
http://www.agilent.com/Service/English/index.html
5
Safety Summary
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 Inc. 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.
All Light Emitting Diodes (LEDs) used in this product are Class 1 LEDs
as per IEC 60825-1.
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 on
page 8.
6
Safety Summary
Ground the Instrument
To minimize shock hazard, the instrument chassis and cover must be
connected to an electrical protective earth 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.
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 fuse holders. To do so could cause a shock or fire
hazard.
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.
7
Safety Summary
Safety Symbols
Caution (refer to accompanying documents)
Protective earth (ground) terminal
In the manuals:
WARNING
CAUTION
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.
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.
8
About this Book
About this Book
This quick start guide helps you to quickly get familiar with the features
and the user interface of the Agilent 81130A Pulse Generator.
Chapter 1 Introducing the Agilent 81130A Pulse and Data Generator
on page 15 gives a general overview of the Agilent 81130A, its features,
the user interface, and the steps required for operating the instrument.
Chapter 2 Getting Started on page 31 gives the setup information for
some real-world signal examples, which can easily be used by varying
only some parameter values.
Chapter 3 Using the Agilent 81130A on page 59 provides complete
information on the user interface screens.
Installation and maintenance are described in Appendix A Installation
& Maintenance on page 99.
For specifications and information on operating the instrument by means
of remote control, please refer to the Reference Guide, p/n 81130-91021.
9
About this Book
Conventions Used in this Book
This book uses certain conventions to indicate elements of the
Agilent 81130As user interface. The following table shows some
examples:
Softkeys Press the MODE/TRG softkey to access the Mode/
Trigger screen.
Hardkeys Press the MORE key to switch to the alternative
softkey layout.
Alternate Keys Press SHIFT + 0 (ON/OFF1) to switch on output 1.
The alternate key labelwhich is selected by
pressing the SHIFT keyis given in parentheses.
Screen Quotes Move the entry focus down to P
turn the knob to select
INTERNAL
ULSE-PERIOD
PLL.
and
Entry Focus The highlight field, that can be moved with the
cursor keys, to change modes, parameters, or
parameter formats.
10
Contents
Notice ......................................................................................... 4
Safety Summary ......................................................................... 6
About this Book ......................................................................... 9
Chapter 1
Chapter 2
Introducing the Agilent 81130A Pulse and
Data Generator
What you can do with the Agilent 81130A ............................ 16
The Front Panel ....................................................................... 18
Operating the Agilent 81130A ................................................ 20
Switching On the Instrument .............................................................. 20
The Basic Screens ................................................................................. 21
Adjusting Parameters ........................................................................... 24
Switching the Outputs On and Off ...................................................... 27
Using the Special Function Keys ........................................................ 27
Help is Available ...................................................................... 29
The Rear Panel ........................................................................ 30
Getting Started
Setting Up a Clock Signal ....................................................... 32
Setting Up a Burst Signal ....................................................... 37
Setting Up a Serial Data Stream ............................................ 41
Setting Up an Edge-Displacement Signal .............................. 46
Setting Up a Serial Data Sequence ........................................ 51
xi
Contents
Chapter 3
Using the Agilent 81130A
The Mode/Trigger Screen ....................................................... 60
Overview ................................................................................................. 60
Continuous Pulses Mode ...................................................................... 63
Continuous Burst Mode ........................................................................ 64
Continuous Pattern Mode .................................................................... 65
Started Pulses Mode ............................................................................. 66
Started Burst Mode ............................................................................... 67
Started Pattern Mode ............................................................................ 68
Gated Pulses Mode ................................................................................ 69
Gated Burst Mode ................................................................................. 70
Gated Pattern Mode .............................................................................. 71
The Timing Screen .................................................................. 72
The Levels Screen ................................................................... 76
The Pattern Screen ................................................................. 79
The Segment Editor .............................................................................. 83
Block Editing Functions ....................................................................... 85
The Limits Screen ................................................................... 86
The Trigger-Level Screen ....................................................... 87
The Memory Card Screen ....................................................... 89
The Configuration Screen ...................................................... 92
The Output Screens ................................................................ 95
Warnings and Errors .............................................................. 96
xii
Contents
Appendix A
Installation & Maintenance
Initial Inspection ................................................................... 100
Standard Deliverables ........................................................................ 101
Options and Accessories: ................................................................... 102
Power Requirements ............................................................. 104
Power Cable ........................................................................... 106
Ventilation Requirements ..................................................... 107
Thermal Protection ............................................................................. 107
Battery ................................................................................... 108
Battery Replacement .......................................................................... 109
Operating Environment ........................................................ 110
Cleaning Recommendation ................................................... 111
Acoustic Noise Emission ....................................................... 112
xiii
Contents
xiv
1Introducing the
Agilent 81130A Pulse and
1
Data Generator
The purpose of the introduction chapter is to give a general overview of
the Agilent 81130A.
The main features and use models are described in What you can do
with the Agilent 81130A on page 16.
Operating the instrument via the front panel user interface is described in
The Front Panel on page 18 and Operating the Agilent 81130A on
page 20.
Help is Available on page 29 shortly introduces the Agilent 81130As
on-line help system.
Finally, The Rear Panel on page 30 takes a look at the back of the
Agilent 81130A.
15
Introducing the Agilent 81130A Pulse and Data Generator
What you can do with the Agilent 81130A
What you can do with the
Agilent 81130A
This section introduces the basic features and use models of the
Agilent 81130A Pulse Generator.
Basic Features
The Agilent 81130A is a pulse and data generator with one or two output
channels. It is capable of generating all standard pulses, bursts, and
patterns of pulses needed to test current logic technologies (for example,
TTL, CMOS, ECL, PECL) and other digital designs up to 400 MHz/3.8V or
660 MHz/2.5V, depending on the installed output module(s).
The instrument features
placement accuracy and accurate delay and deskew even at maximum
output frequency. This contributes to reliable measurements and more
accurate and confident characterizations of the device under test (DUT).
The instrument uses an accurate and stable
For even more accuracy, it can be connected to an
reference
For programming complex
packages, 64 kbit memory are available to store individual patterns. Each
pattern can consist of up to four segments. Loops can be programmed
over single segments or groups of consecutive segments. The segments
can include
.
pseudo-randomly generated data
precision timing
data patterns
, providing highest edge
internal PLL oscillator
external frequency
, such as communication
.
.
If the Agilent 81130A is equipped with two output modules, the output
channels can be used separately or be
signals.
Complete signal setups can be stored locally (5 internal non-volatile
registers available) or on a
16
memory card
added
digitally to form complex
.
Introducing the Agilent 81130A Pulse and Data Generator
What you can do with the Agilent 81130A
Benchtop Testing
The Agilent 81130A features a graphic display showing all pulse
parameters at a glance. The cursor keys and the modify knob allow fast
and simple operation.
The user interface is designed to minimize the time invested in getting
familiar with the instrument. After familiarization, the instrument
supports quick setups of signals. This leaves you free to concentrate on
the measurement task and testing of the DUT.
Automated Testing
The Agilent 81130A features an GP-IB/SCPI-conform command structure
for all features. Using this programming interface, the instrument can be
easily integrated into all phases of test system development such as
planning rack integration and test program generation.
Programs designed for the Agilent 81130A are compatible with all other
models of the Agilent 81100 family.
NOTE
For a command reference list, please refer to the Reference Guide, part
number 81130-91021.
Upgrade Capability
It is possible to upgrade the instrument with a second channel if only one
channel has been ordered originally. There are two types of output
modules available for the Agilent 81130A. You can only use one type of
output module within one instrument.
Output Module Description
Agilent 81131A 400 MHz, 3.8 V
Agilent 81132A 660 MHz, 2.5 V
17
Introducing the Agilent 81130A Pulse and Data Generator
The Front Panel
The Front Panel
When used for benchtop testing, the instrument is mainly operated from
the front panel.
Front Panel
Switch
NOTE
Special Function
Keys
Softkeys
front panel switch
The
When the front panel switch is off, the instrument is in standby mode.
The instrument is disconnected from the AC line power only by
disconnecting the power cord.
The four keys below the display are the
keys). The current function of each softkey is indicated in the
corresponding box on the display.
Pressing the MORE key changes the softkey layout.
The other keys (
and the
operating the instrument (see Operating the Agilent 81130A on
page 20).
rotary knob
MORE Key
is used to switch on and off the instrument.
special function keys, data entry keys, cursor keys
are used to select and modify parameters when
Data Entry
Keys
Inputs and Outputs
softkeys
Cursor
Keys
(software-controlled
Rotary
Knob
)
18
Introducing the Agilent 81130A Pulse and Data Generator
The major inputs and outputs of the instrument are available at the front
panel:
The external input (EXT INPUT) can be used to connect an external
arming source (started or gated modes). For details, please refer to
The Mode/Trigger Screen on page 60.
The clock reference input (CLK/REF INPUT) can be used to connect
either an external clock signal or a reference signal for the internal
PLL (see Pulse Period Source on page 94 and PLL Reference on
page 94).
The trigger signal (TRIGGER OUT) marks the start of the pulse
period or of parts of a pattern (see The Mode/Trigger Screen on
page 60). You can set the output levels according to the used
technology (TTL, ECL, PECL) or enter test-specific values (see The
Trigger-Level Screen on page 87).
The OUTPUT connectors provide the signal output (normal and
inverted), the indicators show the current state of the output (on or
off).
The Front Panel
NOTE
For information on the use of the memory card slot, refer to The
Memory Card Screen on page 89.
19
Introducing the Agilent 81130A Pulse and Data Generator
Operating the Agilent 81130A
Operating the Agilent 81130A
This section guides you through the first steps when operating the
Agilent 81130A via the user interface.
NOTE
For information on operating the Agilent 81130A via remote control,
please refer to the Reference Guide, part number 81130-91021.
Switching On the Instrument
After switching on the instrument the display indicates that the
instrument selftest is running. This can take several seconds to complete.
If the selftest fails, you see a flashing E at the bottom of the screen. Press
the HELP key to see a list of the selftest error messages. Use the knob or
the cursor keys to scroll through the list if necessary.
To return to normal operation press HELP again. Note that the selftest
error messages are removed from the error queue after this.
20
Introducing the Agilent 81130A Pulse and Data Generator
Operating the Agilent 81130A
The Basic Screens
The major parameters for pulse generation can be set up in 3 screens.
For setting up patterns there are two more basic screens.
Mode/Trigger screen
The
and trigger modes with respect to the signal required.
allows you to set the fundamental operating
Press the MODE/
TRG softkey to
access this screen.
CONTINUOUS
PULSES
MODIFY
*Continous
Started
Gated
TIMING PATTERNLEVELSMODE/TRG
In this screen, you can set up the signal to be gated, started or
continuous, and to be a pulse stream, a burst (several pulses followed by
a pause) or a pattern.
In the lower section you can specify the trigger source and control the
trigger output (in started and in gated mode).
21
Introducing the Agilent 81130A Pulse and Data Generator
Operating the Agilent 81130A
OFF OFF
1
OFF OFF
Delay
Width
LeadE 0.8ns
TraiE =LeadE
0ps Delay 0ps
100.0ns
TIMING PATTERNLEVELSMODE/TRG
Timing Screen
Press the TIMING
OR
LEVELS softkey
to access these
screens.
Timing screen
The
and the
Levels screen
allow you to specify timing
and level parameters for the signals to be generated.
1.000
sPer
µµµµ
Width 100.0ns
LeadE 0.8ns
TraiE =LeadE
2
MODIFY
ON OFF
1.000
1
OFF OFF
Separate Outputs
s
µµµµ
High
Low
+2.50V
+0.0MV
TIMING PATTERNLEVELSMODE/TRG
2
Offset 0.0MV
Amplit 1.00V
MODIFY
+2.50
V
M
Levels Screen
In the Timing screen you can set up the clock frequency and, for output 1
and 2, the timing for the signals (delay, pulse width, duty cycle, ...).
The Levels screen allows you to specify the level parameters for the
signals to be generated. You can select between preset values of different
technologies and/or adjust values according to individual requirements.
Set the values in terms of high/low level or offset/amplitude. If the
Agilent 81130A is equipped with two output modules, the channels can
be set as separate outputs or to be digitally added.
Pressing SHIFT + MORE (GRAPH) when the Timing or the Levels screen is
displayed, toggles between the textual display and a graphical
representation of the parameters.
1
OFF
OFF
2
OFF
OFF
TIMING PATTERNLEVELSMODE/TRG
Width
100.0
ns
In both screens, you can switch on and off the outputs. Their status (ON
or OFF) is indicated on screen and by an LED next to the output
connector.
22
Introducing the Agilent 81130A Pulse and Data Generator
Pattern screen
The
consisting of up to 4 segments. You can specify the length of each
individual segment and then compose the sequence by specifying a reentrance point (where the instrument resumes after the end of the
sequence) and/or a loop over consecutive segments.
allows you to compose a pattern sequence
Operating the Agilent 81130A
Segment
Select
Resume
Indicator
(in gated/started
mode only)
Loop
Indicator
Segment Length Loopcnt Update
1
32 1
2 0
3 0
4 0
TIMING PATTERNLEVELSMODE/TRG
To set up the data of a segment, you call the
the segment to be edited and pressing the ENTER key.
Segment 1
Address 1
CH1 Data 1 0 0 0 0 0 0
UPDATE
Length 32
1
segment editor
CH2 Data 0 0 0 0 0 0 0
Both 1 0 0 0 0 0 0
ENTER
*Edit Segm
by selecting
= ADDR
0 to Reset
1 to Set
Toggle
±±±±
TIMING PATTERNLEVELSMODE/TRG
Per channel you can select from different predefined data formats (such
as high, or low, or pseudo-random data segment), you can enter data by
using block editing functions, and you can enter the data bit by bit.
23
Introducing the Agilent 81130A Pulse and Data Generator
Operating the Agilent 81130A
Adjusting Parameters
Adjusting parameters within a screen, requires two steps:
selecting the parameter
adjusting its value
Some parameters allow different formats of their values. For example,
the pulse width can be displayed and entered as an absolute value, as
duty cycle (percentage of the period), or as the delay of the trailing edge.
The following sections show the standard procedure for adjusting
parameters, and list some features useful for the advanced user.
Standard Procedure
To experience the standard procedure for adjusting parameters, consider
the following example where the duty cycle is set to 50%.
1
Press the TIMING softkey to access the Timing screen.
2
Use the cursor keys to select the W
parameter.
IDTH
Selection Modify/Enter Area
OFF Per 1.000 µs OFF
1
OFF OFF
Delay
Width
0ps
100.0ns
Delay 0ps
Width
2
100.0ns
MODIFY
*Width
DutyCycle
TrailDel
TIMING PATTERNLEVELSMODE/TRG
The available formats for the pulse width parameter are displayed in
the Modify/Enter area.
24
Introducing the Agilent 81130A Pulse and Data Generator
Operating the Agilent 81130A
When changing the
parameter format,
the instrument
automatically
recalculates the
value.
3
Turn the knob to select D
The selected setting is indicated by an *.
4
Move the cursor to the right to select the duty cycle value.
5
Use the data entry keys or the knob to enter the required value: 50.
6
Press the ENTER key to confirm your selection.
UTYCYCLE
.
ON Per 1.000µs OFF
1
OFF OFF
Delay
DtyCyc
0ps
50.0%
Delay 0ps
Width 100.0ns
2
MODIFY
50.0
%
TIMING PATTERNLEVELSMODE/TRG
If you need to specify a unit for a parameter, simply press the appropriate
unit key (
With this small example, you have learned the basic steps required for
adjusting parameters. For a complete reference of parameters and
formats available in the individual screens, refer to Chapter 3 Using the
Agilent 81130A on page 59.
NANO, MICRO/MEGA, MILLI/KILO
) instead of the ENTER key.
25
Introducing the Agilent 81130A Pulse and Data Generator
Operating the Agilent 81130A
Advanced Procedures
The following features can be used to make operation more comfortable.
Selecting parameters
SHIFT
SHIFT
SHIFT
NOTE
Most keys of the front panel have an additional function. The SHIFT
key provides fast access to the additional functions of the data entry
keys and the special function keys.
For example, it is possible to quickly access the pulse width
parameter by pressing SHIFT + 6 (WIDTH). The entry focus will be
positioned on the corresponding editing field.
Changing the step size
When modifying a value in the Modify/Enter area, pressing the SHIFT
key followed by cursor left/right moves the cursor to a different digit
in the displayed number.
Thus, you can change the step size for parameter change before you
vary the value either with the up/down cursor keys or the knob.
Overprogramming
Pressing the SHIFT key while turning the knob, it is possible to exceed
specified parameter ranges to utilize the instrument to its limits.
Proper operation of the instrument outside of the specified ranges is not
guaranteed. It is recommended to have the output switched on when
overprogramming to have the internal error check system activated. This
error check system warns you about impossible settings.
26
ON/OFF1
0
Introducing the Agilent 81130A Pulse and Data Generator
Operating the Agilent 81130A
Switching the Outputs On and Off
When you switch the instrument on, the outputs and inverted outputs are
switched off to protect the device under test. The LED indicator next to
the connector indicates the output state.
For example, to switch output 1 on or off
either press SHIFT + 0 (ON/OFF1),
or move the cursor to the ON/OFF parameter in the Timing or Levels
screen and select the appropriate value by turning the knob.
To switch on or off output 2 and/or the inverted outputs, proceed in the
same way. You can use the following short cuts:
Short Cut Output
SHIFT + 0 (ON/OFF1) Normal Out 1
MAN
RECALL
STORE
SHIFT + . (decimal point) (ON/OFF1
SHIFT + +/- (ON/OFF2) Normal Out 2
SHIFT + ENTER (ON/OFF2
) Inverted Out 2
) Inverted Out 1
Using the Special Function Keys
The instrument provides the following special function keys:
The MAN key can be used to run and to stop the instrument, and, in
triggered or gated mode, to manually arm and/or trigger the
instrument if there is no other source available (see The Mode/
Trigger Screen on page 60).
The STORE key can be used to store/recall to/from 1 to 4 individual
settings in the instrument memory.
In the internal memory location 0 there is a default setting stored.
Pressing SHIFT + STORE (RECALL) and selecting 0 resets the instrument to
the default setting.
27
Introducing the Agilent 81130A Pulse and Data Generator
Operating the Agilent 81130A
SHIFT
LOCAL
HELP
The SHIFT key provides fast access to additional functions.
When the front panel controls are locked in remote control, pressing
the SHIFT key unlocks the front panel controls.
The HELP key provides access to the instruments on-line help or in
warning or error state, access to Warning/Error Report screen.
Pressing SHIFT + HELP (AUTOSET) sets the instrument to a valid
setting based on the current period setting.
28
Help
Introducing the Agilent 81130A Pulse and Data Generator
Help is Available
Help is Available
Whenever you are in doubt or the instrument signals warnings or errors,
press the HELP key.
If there are no warnings or errors pending, pressing the HELP key
displays information on the currently selected parameter, the parameter
help. More information is available within the help system:
Parameter Help
The help information gives a short description of the parameter or
setting options and the corresponding SCPI command(s) syntax for
programming the parameter or setting.
If there is more than one screen available (indicated by small arrows),
use the knob or the cursor keys to scroll through the help
information.
To access parameter help from other screens of the help system,
press the ON FIELD softkey.
Warnings and
Errors
Exit Help
Concept Help
Pressing the CONCEPT softkey within the help system displays a short
description of the instrument.
Serial Numbers and Software Revision
Pressing the SERIAL # softkey within the help system displays
information on serial numbers and software revision codes of the
instrument.
If there are warnings or errors pending (indicated by a flushing W or E),
pressing the HELP key displays a list of the current messages. Using the
ERROR QU and WARNING softkeys, you can toggle between both lists. For
more information on warnings and errors, see Warnings and Errors on
page 96.
To exit from the help system, press the HELP key again, or press the EXIT
HELP softkey.
29
Introducing the Agilent 81130A Pulse and Data Generator
The Rear Panel
The Rear Panel
The rear panel always provides two connectors:
The external input (EXT INPUT) can be used to connect an external
arming source (started or gated modes).
The input connector for external clock or PLL reference (CLOCK/
REF INPUT) can be used if a higher frequency accuracy is required.
The GP-IB connector providing the interface for remote control.
The following figure shows the rear panel view with the option UN2.
CLK/REF InputExternal Input GP-IB Connector
Inputs and Outputs
With option UN2 the major inputs and outputs of the instrument (as
described in The Front Panel on page 18) are available at the rear
panel:
external input (EXT INPUT)
clock/reference input (CLK/REF INPUT)
trigger signal (TRIGGER OUT)
signal output (OUTPUT)
30
Fuse Holder
AC Line Socket Serial Number
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