HP 81101A User manual

H
HP 81101A 50 MHz
Pulse Generator
Reference
Guide

Per 1.000µs Normal
OUTPUT TRG-LEVLIMITSMODE/TRG
OFF
Delay
1
0ps
Width
LeadE
TraiE
100.0ns
5.00ns
=LeadE
Offset
Amplit +0.0mV 1.00V
50Ωinto 50.0Ω
*OFF
ON
MODIFY
MORE
GRAPH
Use the KNOB to select a
mode or modify parameters
and formats
Press ENTER or a UNIT key to
confirm parameter changes
Use the CURSOR keys to move
the entry focus to a mode,
parameter format, or
parameter value
Press a SOFTKEY to access
the required entry screen Press MORE key to access
the additional screen menus:
MODE/TRG TRG-LEV MEMCARD CONFIG
Screen Selection Area
Mode / Parameter Area Modify / Enter Area
Entry Focus
Front Panel Display and Softkeys

Reference Guide
HP 81101A 50 MHz
Pulse Generator
HP Part No. 81101-91011
Printed in Germany September 1998
Edition 1.0, E0998

4
Notice
Notice
Copyright
1998 Hewlett-Packard GmbH
Herrenberger Str. 110–140
71034 Boeblingen
Germany
All rights reserved. Reproduction, adaptation or translation without prior
written permission is prohibited, except as allowed under the copyright
laws.
Warranty
This Hewlett-Packard product has a warranty against defects in material
and workmanship for a period of three years from date of shipment.
During the warranty period, Hewlett-Packard Company 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 Hewlett-Packard. The Buyer shall pay Hewlett-Packard's
round-trip travel expenses. For products returned to Hewlett-Packard for
warranty service, the Buyer shall prepay shipping charges to Hewlett-
Packard and Hewlett-Packard 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 Hewlett-Packard from another
country. Hewlett-Packard warrants that its software and firmware
designated by Hewlett-Packard for use with an instrument will execute
its programming instructions when properly installed on that instrument.
Hewlett-Packard does not warrant that the operation of the instrument
software, or firmware, will be uninterrupted or error free.

5
Notice
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. Hewlett-Packard 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.
Hewlett-Packard shall not be liable for any direct, indirect, special,
incidental, or consequential damages, whether based on contract, tort or
any other legal theory.
Assistance
Product maintenance agreements and other customer assistance
agreements are available for Hewlett-Packard products. For any
assistance, contact your nearest Hewlett-Packard Sales Office.
Certification
Hewlett-Packard Company certifies that this product met its published
specifications at the time of shipment. Hewlett-Packard 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.

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About this Book
About this Book
This guide provides reference information primarily for programming the
HP 81101A via remote control.
Chapter 1 “General Programming Aspects” on page 13 gives general
hints for programming instruments like the HP 81101A using SCPI
commands.
Chapter 2 “Programming Reference” on page 25 provides detailed
information on the SCPI commands supported by the instrument.
Chapter 3 “Specifications” on page 89 lists the instrument’s technical
specifications and provides exact definitions for the instrument’s
parameters.
For an introduction and information on the HP 81101A’s user interface,
please refer to the Quick Start Guide, p/n 81101-91010.

7
About this Book
Conventions Used in this Book
This book uses certain conventions to indicate elements of the
HP 81101A’s 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/OFF) to switch on the output.
The alternate key label—which is selected by
pressing the SHIFT key—is given in parentheses.
Screen Quotes Move the entry focus down to PULSE-PERIOD and
turn the knob to select INTERNAL PLL.
Entry Focus The highlight field, that can be moved with the
cursor keys, to change modes, parameters, or
parameter formats.
:VOLTage:HIGH 3V Full command for programming a 3 V high level.
The upper case letters represent the short form
of the command, which results in faster pro-
gramming times.
*RST Common IEE 488 command, to reset instrument
to default status.

8
Safety Information
Safety Information
Safety
This is a Safety Class 1 instrument (provided with terminal for protective
earthing). Before applying power, verify that the correct safety
precautions are taken (see the following warnings). In addition, note the
external markings on the instrument that are described under Safety
Symbols. Do not operate the instrument with its covers removed.
Replace fuse only with specified type.
Warning
Before turning on the instrument, you must connect the protective earth
terminal of the instrument to the protective earth conductor of the
(mains) power cord. The mains plug must only be inserted in a socket
outlet with a protective earth contact. Do not negate the protective
action by using an extension power cord without a protective grounding
conductor. Grounding one conductor of a two-conductor outlet is not
sufficient protection.
Service instructions are for trained service personnel. To avoid
dangerous electric shock, do not perform any service unless qualified to
do so. Do not attempt internal service or adjustment unless another
person, capable of rendering first aid and resuscitation, is present.
If you energize this instrument using an auto-transformer (for voltage
reduction) make sure that the common terminal is connected to the earth
terminal of the power source.
Whenever it is likely that the ground protection is impaired, you must
make the instrument inoperative and secure it against any unintended
operation.
Do not operate the instrument in the presence of flammable gases or
fumes. Operation of any electrical instrument in such an environment
constitutes a definite safety hazard.
Do not install substitute parts or perform any unauthorized modification
to the instrument.

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Safety Information
Capacitors inside the instrument may retain a charge even if the
instrument is disconnected from its source of supply.
Safety Symbols
Instruction Manual symbol: The instrument is marked with this symbol
when it is necessary for you to refer to the instruction manual in order to
protect against damage to the instrument.
Protected conductor symbol.
In the manuals:
WARNING Warnings call attention to a procedure, practice, or the like,
which, if not correctly performed or adhered to, could result in
personal injury or loss of life. Do not proceed beyond a Warning
until the indicated conditions are fully understood and met.
CAUTION Cautions call attention to a procedure, practice, or the like, which, if not
correctly performed or adhered to, could result in damage to or
destruction of part or all of the equipment. Do not proceed beyond a
Caution until the indicated conditions are fully understood and met.

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Safety Information