Keysight Technologies M9168C User manual

Keysight M9168C/68E/69E
PXI Programmable Step
Attenuator Module
Startup and
Service Guide

M9168C/68E/69E Startup and Service Guide I

II M9168C/68E/69E Startup and Service Guide
Notices
© Keysight Technologies 2011 - 2015
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation
into a foreign language) without prior agree-
ment and written consent from Keysight
Technologies as governed by United States
and international copyright laws.
Manual Part Number
M9168-90001
Edition
Edition 3, March 2015
Printed in Malaysia
Published by Keysight Technologies
Keysight Technologies Sdn. Bhd.
Phase 3 Bayan Lepas Free Industrial Zone
Bayan Lepas, Penang 11900 Malaysia
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Keysight disclaims all warran-
ties, either express or implied, with
regard to this manual and any infor-
mation contained herein, including
but not limited to the implied warran-
ties of merchantability and fitness for
a particular purpose. Keysight shall
not be liable for errors or for inciden-
tal or consequential damages in con-
nection with the furnishing, use, or
performance of this document or of
any information contained herein.
Should Keysight and the user have a
separate written agreement with
warranty terms covering the material
in this document that conflict with
these terms, the warranty terms in the
separate agreement shall control.
Technology Licenses
The hardware and/or software described in
this document are furnished under a license
and may be used or copied only in accor-
dance with the terms of such license.
Restricted Rights Legend
If Software is for use in the performance of
a U.S. Government prime contract or sub-
contract, Software is delivered and licensed
as “Commercial computer software” as
defined in DFAR 252.227-7014 (June 1995),
or as a “commercial item” as defined in FAR
2.101(a) or as “Restricted computer soft-
ware” as defined in FAR 52.227-19 (June
1987) or any equivalent agency regulation or
contract clause. Use, duplication, or disclo-
sure of Software is subject to Keysight
Technologies’ standard commercial license
terms, and non-DOD Departments and
Agencies of the U.S. Government will
receive no greater than Restricted Rights as
defined in FAR 52.227-19(c)(1-2) (June
1987). U.S. Government users will receive
no greater than Limited Rights as defined in
FAR 52.227-14 (June 1987) or DFAR
252.227-7015(b)(2) (November 1995), as
applicable in any technical data.
Regulatory Compliance
This product has been designed and tested
in accordance with accepted industry stan-
dards, and has been supplied in a safe con-
dition. To review the Declaration of
Conformity, go to
http://regulations.products.keysight.com/
DoC/search.htm.
Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing procedure, practice, or the like
that, if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and
met.
Sales and Technical Support
To contact Keysight for sales and technical
support, refer to the "support" links on the
following Keysight Web resources:
•www.keysight.com/find/PXIattenuator
(product-specific information and
support, software and documentation
updates)
•www.keysight.com/find/assist
(worldwide contact information for
repair and service)
Information on preventing damage to your
Keysight equipment can be found at
www.keysight.com/find/tips.
Trademark Acknowledgements
Microsoft, Windows, Windows Vista, and
DirectX are trademarks or registered trade-
marks of Microsoft Corporation.
Itanium is a trademark or registered trade-
mark of Intel Corporation.

M9168C/68E/69E Startup and Service Guide III
General Safety Information
The following safety precautions should be observed before using this
product and any associated instrumentation.
This product is intended for use by qualified personnel who recognize
shock hazards and are familiar with the safety precautions required to
avoid any possible injury. Read and follow all installation, operation, and
maintenance information carefully before using this product. Refer to the
user documentation for complete product specifications.
The types of product users are:
•Responsible body who is the individual or group responsible for the
use and maintenance of equipment, for ensuring that the equipment is
operated within its specifications and operating limits, and for
ensuring that operators are adequately trained.
•Operators who use the product for its intended function. They must be
trained in electrical safety procedures and proper use of the
instrument. They must be protected from electric shock and contact
with hazardous live circuits.
•Maintenance personnel who perform routine procedures on the
product to keep it operating properly (for example, setting the line
voltage or replacing consumable materials). Maintenance procedures
are described in the user documentation. The procedures explicitly
state if the operator may perform them. Otherwise, they should be
performed only by service personnel.
•Service personnel who are trained to work on live circuits, perform
safe installations, and repair products. Only properly trained service
personnel may perform installation and service procedures.
Keysight products are designed for use with electrical signals that are
rated Measurement Category I and Measurement Category II, as described
in the International Electrotechnical Commission (IEC) Standard IEC
60664. Most measurement, control, and data I/O signals are rated
Measurement Category I and must not be directly connected to mains
WARNING
If this product is not used as specified, the protection provided by the
equipment could be impaired. This product must be used in a normal
condition (in which all means for protection are intact) only.

IV M9168C/68E/69E Startup and Service Guide
voltage or to voltage sources with high transient over-voltages.
Measurement Category II connections require protection for high transient
over-voltages often associated with local AC mains connections. Assume
all measurement, control, and data I/O connections are for connection to
Category I sources unless otherwise marked or described in the user
documentation.
Exercise extreme caution when a shock hazard is present. Lethal voltage
may be present on cable connector jacks or test fixtures. The American
National Standards Institute (ANSI) states that a shock hazard exists
when voltage levels greater than 30 Vrms, 42.4 Vpeak, or 60 VDC are
present. A good safety practice is to expect that hazardous voltage is
present in any unknown circuit before measuring.
Operators of this product must be protected from electric shock at all
times. The responsible body must ensure that operators are prevented
access and/or insulated from every connection point. In some cases,
connections must be exposed to potential human contact. Product
operators in these circumstances must be trained to protect themselves
from the risk of electric shock. If the circuit is capable of operating at or
above 1000 V, no conductive part of the circuit may be exposed.
Do not connect switching cards directly to unlimited power circuits. They
are intended to be used with impedance-limited sources. NEVER connect
switching cards directly to AC mains. When connecting sources to
switching cards, install protective devices to limit fault current and voltage
to the card.
Before operating an instrument, ensure that the line cord is connected to a
properly-grounded power receptacle. Inspect the connecting cables, test
leads, and jumpers for possible wear, cracks, or breaks before each use.
When installing equipment where access to the main power cord is
restricted, such as rack mounting, a separate main input power disconnect
device must be provided in close proximity to the equipment and within
easy reach of the operator.
For maximum safety, do not touch the product, test cables, or any other
instruments while power is applied to the circuit-under-test. ALWAYS
remove power from the entire test system and discharge any capacitors
before connecting or disconnecting cables or jumpers, installing or
removing switching cards, or making internal changes, such as installing
or removing jumpers.

M9168C/68E/69E Startup and Service Guide V
Do not touch any object that could provide a current path to the common
side of the circuit-under-test or power line (earth) ground. Always make
measurements with dry hands while standing on a dry, insulated surface
capable of withstanding the voltage being measured.
The instrument and accessories must be used in accordance with its
specifications and operating instructions, or the safety of the equipment
may be impaired.
Do not exceed the maximum signal levels of the instruments and
accessories, as defined in the specifications and operating information,
and as shown on the instrument or test fixture panels, or switching card.
When fuses are used in a product, replace with the same type and rating
for continued protection against fire hazard.
Chassis connections must only be used as shield connections for
measuring circuits, NOT as safety earth ground connections.
If you are using a test fixture, keep the lid closed while power is applied to
the device-under-test. Safe operation requires the use of a lid interlock.
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and all test
cables.
To maintain protection from electric shock and fire, replacement
components in mains circuits – including the power transformer, test
leads, and input jacks – must be purchased from Keysight. Standard fuses
with applicable national safety approvals may be used if the rating and
type are the same. Other components that are not safety-related may be
purchased from other suppliers as long as they are equivalent to the
original component (note that selected parts should be purchased only
through Keysight to maintain accuracy and functionality of the product). If
you are unsure about the applicability of a replacement component, call a
Keysight office for information.
WARNING
No operator serviceable parts inside. Refer servicing to qualified
personnel. To prevent electric shock, do not remove covers.

VI M9168C/68E/69E Startup and Service Guide
Front and Rear Panel Symbols
The CE mark shows that the product complies with all the relevant European
Legal Directives.
This symbol indicates that this is an Industrial Scientific and Medical Group 1
Class A product.
ICES/NMB-001 indicates that this ISM device complies with Canadian
ICES-001.
Cet appareill ISM est conforme a la norme NMB-001 du Canada.
The C-Tick mark is a registered trademark of the Spectrum Management Agency
of Australia. This signifies compliance with the Australian EMC Framework
Regulations under the terms of the Radio Communications Act of 1992.
This symbol indicates separate collection for electrical and electronic
equipment, mandated under EU law as of August 13, 2005. All electrical and
electronic equipment are required to be separated from normal waste for
disposal (Reference WEEE Directive, 2002/96/EC).
This symbol indicates the time period during which no hazardous or toxic
substance elements are expected to leak or deteriorate during normal use. Forty
years is the expected useful life of the product.
This symbol indicates that PXI is a U.S. registered trademark of the PXI System
Alliance.

M9168C/68E/69E Startup and Service Guide VII
Cleaning Precautions
WARNING
To prevent electric shock, disconnect the instrument from mains before
cleaning. Use a dry cloth or one slightly dampened with water to clean
the external case parts. Do not attempt to clean internally. To clean the
connectors, use alcohol in a well-ventilated area. Allow all residual
alcohol moisture to evaporate, and the fumes to dissipate prior to
energizing the instrument.

VIII M9168C/68E/69E Startup and Service Guide
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