Keysight E4451-67000 User manual

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Keysight Power
Distribution Unit (PDU)
Installation
Guide
For use with Keysight PDU kits
and PDU installation kits for
Keysight racks

ii
Notices
© Keysight Technologies, Inc. 2015
No part of this manual may be repro-
duced in any form or by any means
(including electronic storage and retrieval
or translation into a foreign language)
without prior agreement and written con-
sent from Keysight Technologies, Inc. as
governed by United States and interna-
tional copyright laws.
Manual Part Number
5000-0039
Edition
Eleventh Edition, August 2015
Printed in
Malaysia
Published by
Keysight Technologies, Inc.
900 S. Taft Ave.
Loveland, CO 80537 USA
Trademarks
PICMG®, Compact PCI® are registered
trademarks of the PCI Industrial Com-
puter Manufacturers Group.
AdvancedTCA®and ATCA are registered
trademarks of the PCI Industrial Com-
puter Manufacturers Group.
PCI-SIG®, PCI Express®, and PCIe®are
registered trademarks of PCI-SIG.
Technology Licenses
The hardware and/or software described
in this document are furnished under a
license and may be used or copied only in
accordance with the terms of such
license.
Declaration of Conformity
Declarations of Conformity for this prod-
uct and for other Keysight products may
be downloaded from the Web. Go to
http://keysight.com/go/conformity.
You can then search by product number
to find the latest Declaration of Confor-
mity.
U.S. Government Rights
The Software is “commercial computer
software,” as defined by Federal Acquisi-
tion Regulation (“FAR”) 2.101. Pursuant
to FAR 12.212 and 27.405-3 and Depart-
ment of Defense FAR Supplement
(“DFARS”) 227.7202, the U.S. govern-
ment acquires commercial computer
software under the same terms by which
the software is customarily provided to
the public. Accordingly, Keysight pro-
vides the Software to U.S. government
customers under its standard commercial
license, which is embodied in its End
User License Agreement (EULA), a copy
of which can be found at http://
www.keysight.com/find/sweula. The
license set forth in the EULA represents
the exclusive authority by which the U.S.
government may use, modify, distribute,
or disclose the Software. The EULA and
the license set forth therein, does not
require or permit, among other things,
that Keysight: (1) Furnish technical infor-
mation related to commercial computer
software or commercial computer soft-
ware documentation that isnot custom-
arily provided to the public; or (2)
Relinquish to, or otherwise provide, the
government rights in excess of these
rights customarily provided to the public
to use, modify, reproduce, release, per-
form, display, or disclose commercial
computer software or commercial com-
puter software documentation. No addi-
tional government requirements beyond
those set forth in the EULA shall apply,
except to the extent that those terms,
rights, or licenses are explicitly required
from all providers of commercial com-
puter software pursuant to the FAR and
the DFARS and are set forth specifically
in writing elsewhere in the EULA. Key-
sight shall be under no obligation to
update, revise or otherwise modify the
Software. With respect to any technical
data as defined by FAR 2.101, pursuant
to FAR 12.211 and 27.404.2 and DFARS
227.7102, the U.S. government acquires
no greater than Limited Rights as defined
in FAR 27.401 or DFAR 227.7103-5 (c), as
applicable in any technical data.
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,” AND
IS SUBJECT TO BEING CHANGED,
WITHOUT NOTICE, IN FUTURE EDI-
TIONS. FURTHER, TO THE MAXIMUM
EXTENT PERMITTED BY APPLICABLE
LAW, KEYSIGHT DISCLAIMS ALL WAR-
RANTIES, EITHER EXPRESS OR IMPLIED,
WITH REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT LIMITED
TO THE IMPLIED WARRANTIES OF MER-
CHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS OR
FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES IN CONNECTION WITH THE
FURNISHING, USE, OR PERFORMANCE
OF THIS DOCUMENT OR OF ANY INFOR-
MATION CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A SEP-
ARATE 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.
Keysight Technologies does not warrant
third-party system-level (combination of
chassis, controllers, modules, etc.) per-
formance, safety, or regulatory compli-
ance unless specifically stated.
Safety Information
A CAUTION denotes a hazard. It calls
attention to an operating procedure
or practice that, if not correctly per-
formed 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 under-
stood and met.
A WARNING denotes a hazard. It
calls attention to an operating pro-
cedure or practice, that, if not cor-
rectly performed or adhered to,
could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indicated
conditions are fully understood and
met.

Safety Information
The following general safety precau-
tions must be observed during all
phases of operation of this instrument.
Failure to comply with these precau-
tions or with specific warnings or oper-
ating instructions in the product
manuals violates safety standards of
design, manufacture, and intended use
of the instrument. Keysight Technolo-
gies assumes no liability for the cus-
tomer's failure to comply with these
requirements.
General
Do not use this product in any manner not
specified by the manufacturer. The protec-
tive features of this product must not be
impaired if it is used in a manner specified in
the operation instructions.
Before Applying Power
Verify that all safety precautions are taken.
Make all connections to the unit before
applying power. Note the external markings
described under “Safety Symbols”.
Ground the Instrument
Keysight chassis’ are provided with a
grounding-type power plug. The
instrument chassis and cover must be
connected to an electrical ground to
minimize shock hazard. The ground pin
must be firmly connected to an electri-
cal ground (safety ground) terminal 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 per-
sonal injury.
Do Not Operate in an Explosive
Atmosphere
Do not operate the module/chassis in
the presence of flammable gases or
fumes.
Do Not Operate Near Flammable
Liquids
Do not operate the module/chassis in
the presence of flammable liquids or
near containers of such liquids.
Cleaning
Clean the outside of the Keysight mod-
ule/chassis with a soft, lint-free,
slightly dampened cloth. Do not use
detergent or chemical solvents.
Do Not Remove Instrument Cover
Only qualified, service-trained person-
nel who are aware of the hazards
involved should remove instrument
covers. Always disconnect the power
cable and any external circuits before
removing the instrument cover.
Keep away from live circuits
Operating personnel must not remove
equipment covers or shields. Proce-
dures involving the removal of covers
and shields are for use by service-
trained personnel only. Under certain
conditions, dangerous voltages may
exist even with the equipment
switched off. To avoid dangerous elec-
trical shock, DO NOT perform proce-
dures involving cover or shield removal
unless you are qualified to do so.
DO NOT operate damaged
equipment
Whenever it is possible that the safety
protection features built into this prod-
uct have been impaired, either through
physical damage, excessive moisture,
or any other reason, REMOVE POWER
and do not use the product until safe
operation can be verified by service-
trained personnel. If necessary, return
the product to an Keysight Technolo-
gies Sales and Service Office for ser-
vice and repair to ensure the safety
features are maintained.
DO NOT block the primary
disconnect
The primary disconnect device is the
appliance connector/power cord when
a chassis used by itself, but when
installed into a rack or system the dis-
connect may be impaired and must be
considered part of the installation.
Do Not Modify the Instrument
Do not install substitute parts or per-
form any unauthorized modification to
the product. Return the product to an
Keysight Sales and Service Office to
ensure that safety features are main-
tained.
In Case of Damage
Instruments that appear damaged or
defective should be made inoperative
and secured against unintended oper-
ation until they can be repaired by
qualified service personnel
Do NOT block vents and fan exhaust:
To ensure adequate cooling and venti-
lation, leave a gap of at least 50mm
(2") around vent holes on both sides of
the chassis.
Do NOT operate with empty slots: To
ensure proper cooling and avoid dam-
aging equipment, fill each empty slot
with an AXIe filler panel module.
Do NOT stack free-standing chassis:
Stacked chassis should be rack-
mounted.
All modules are grounded through the
chassis: During installation, tighten
each module's retaining screws to
secure the module to the chassis and
to make the ground connection.
Operator is responsible to maintain
safe operating conditions. To ensure
safe operating conditions, modules
should not be operated beyond the
full temperature range specified in the
Environmental and physical specifica-
tion. Exceeding safe operating condi-
tions can result in shorter lifespan,
improper module performance and
user safety issues. When the modules
are in use and operation within the
specified full temperature range is not
maintained, module surface tempera-
tures may exceed safe handling con-
ditions which can cause discomfort or
burns if touched. In the event of a
module exceeding the full tempera-
ture range, always allow the module
to cool before touching or removing
modules from the chassis.
iii

Safety Symbols
A CAUTION denotes a hazard. It
calls attention to an operating
procedure or practice, 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 CAU-
TION notice until the indicated
conditions are fully understood
and met.
A WARNING denotes a hazard. It
calls attention to an operating
procedure or practice, that, if not
correctly performed or adhered to,
could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indi-
cated conditions are fully under-
stood and met.
Products display the following sym-
bols:
The CSA mark is a registered trade-
mark of the Canadian Standards Asso-
ciation and indicates compliance to
the standards laid out by them. Refer
to the product Declaration of Confor-
mity for details.
Notice for European Community: This
product complies with the relevant
European legal Directives: EMC Direc-
tive (2004/108/EC) and Low Voltage
Directive (2006/95/EC).
The Regulatory Compliance Mark
(RCM) mark is a registered trademark.
This signifies compliance with the Aus-
tralia EMC Framework regulations
under the terms of the Radio Commu-
nication Act of 1992.
ICES/NMB-001 indicates that this ISM
device complies with the Canadian
ICES-001.
This symbol represents 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 this product.
South Korean Class A EMC Declara-
tion. this equipment is Class A suitable
for professional use and is for use in
electromagnetic environments outside
of the home.
Waste Electrical and
Electronic
Equipment (WEEE)
Directive
2002/96/EC
This product complies with the WEEE
Directive (2002/96/EC) marking
requirement. The affixed product label
(see below) indicates that you must not
discard this electrical/electronic prod-
uct in domestic household waste.
Product Category: With reference to
the equipment types in the WEEE
directive Annex 1, this product is clas-
sified as a “Monitoring and Control
instrumentation” product.
Do not dispose in domestic household
waste.
To return unwanted products, contact
your local Keysight office for more
information.
Warning, risk of electric
shock
Refer to manual for addi-
tional safety information.
Earth Ground.
Chassis Ground.
Alternating Current (AC).
Standby Power. Unit is not
completely disconnected
from AC mains when
switch is in standby.
Antistatic precautions
should be taken.
CAT I
CAT II
CAT III
CAT IV
IEC Measurement Cate-
gory I, II, III, or IV
For localized Safety Warnings, Refer
to Keysight Safety document (p/n
9320-6792).
iv

Keysight Power Distribution Unit Installation Guide v
Contents
General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
E7685A PDU Installation Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Tools Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PDU Kit Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PDU Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installation procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting the Old Style Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6 Keysight Power Distribution Unit Installation Guide
General Information
General Information
The Keysight E7685A PDU Installation Kit enables you to mount an Keysight
Power Distribution Unit (PDU) in an Keysight instrument rack. This kit is required
if the rack is not already equipped with a PDU, or if you want to install a switched
PDU in a rack containing an unswitched PDU. Each PDU installation kit allows
the installation of up to two PDU kits. Instrument racks are designed to house
two PDU kits only. The voltage of a second PDU must match that of the installed
PDU for correct operation of the illuminated master switch.
To support worldwide power requirements, four Keysight PDU kits are available.
The Keysight E7685A PDU Installation Kit allows the installation of any of the
following PDU kits:
The above-listed PDU kits are intended to be used only in the following Keysight
rack enclosures: E3661B, E3662B, and E7590A.
The low voltage master switch removes power only from the PDU outlet
receptacles. To completely remove power from the PDU and rack system,
the PDU power cord must be removed from the premise electrical system
or, if the rack is connected to a dedicated circuit breaker, the breaker
shall be opened.
Keysight uses the “supplemental” type of circuit breakers on all PDUs.
Kit Number Description
E4451-67000 PDU - 1.3m, North America (100-120V) (NEMA receptacles)
E4453-67000 PDU - 1.3m, International (200-240V) (IEC receptacles)
E4455-67000 PDU - 1.6m/2.0m, North America (100-120V) (NEMA receptacles)
E4457-67000 PDU - 1.6m/2.0m, International (200-240V) (IEC receptacles)
E4451-67000 PDU - 1.3m, North America (100-120V) (NEMA receptacles)

7 Keysight Power Distribution Unit Installation Guide
E7685A PDU Installation Kit Contents
E7685A PDU Installation Kit Contents
The Keysight E7685A PDU Installation Kit contains the following:
Tools Required
To install the PDU kit, you will need the following tools:
-T25 Torx® driver.
-Wrench or nut driver to fit 3/8 inch hex nut.
PDU Kit Contents
The four KeysightKeysight PDU kits contain the following:
Item Quantity Description Part Number
1 1 Forehead Assembly - with switch cutout 5061-8750
2 2 PDU Support Bracket C2786-00021
3 4 Sheet Metal Nuts (10-32) 0590-0804
4 4 Machine Screw, Torx® T25⎯10-32x0.5inch 2680-0278
The installation of a first PDU requires the purchase of the Keysight E7685A
PDU Installation Kit. This kit provides hardware and rack components required
to complete the installation. The installation of a second PDU does not require
an additional kit. However, you will need the kit‘s switch and hardware if the
first PDU was not switched, and you are adding a switched PDU.
The voltage of a second PDU must match that of the installed PDU for correct
operation of the illuminated switch.
When the remote switch is not utilized, the plug is considered to be the
disconnect device. When the plug is the disconnect device the socket-outlet
shall be installed near the equipment and shall be readily accessible.
PDU Kit Number Quantity Description
1.3m Kit:
E4451-67000
E4453-67000
1.6m Kit:
E4455-67000
E4457-67000
1 PDU
1.3m PDU:
100-120V North American (NEMA receptacles)
200-240V International (IEC receptacles)
1.6m PDU:
100-120V North American (NEMA receptacles)
200-240V International (IEC receptacles)

Keysight Power Distribution Unit Installation Guide 8
All 3 Machine Screw, Torx® T25, 10-32x0.5 inch (p/n
2680-0278)
All 2 Washer-external tooth, #10 (p/n 2190-0565)
All 1 Nut-Hex w/Ext. tooth lock washer, 10-32 (p/n
2740-0003)
All 1 Cable assembly, ground (p/n C2786-60065)
PDU Kit Number Quantity Description

9 Keysight Power Distribution Unit Installation Guide
PDU Specifications
PDU Specifications
The specifications for the customer orderable PDUs are given in the following
table:
Model
Number
E4451-67000
PDU for 1.3 M racks
E4453-67000
PDU for 1.3 M racks
E4455-67000
PDU for 1.6, 2.0 M
racks
E4457-67000
PDU for 1.6, 2.0 M
racks
Input 100-120V, 50/60
Hz
(N. America)
200-240V, 50/60 Hz
(International)
100-120V, 50/60 Hz
(N. America)
200-240V, 50/60 Hz
(International)
Output 100-120V, 50/60
Hz, 15A
1-IEC 320 C13
Receptacle
5-NEMA 5-15R
Receptacles
200-240V, 50/60 Hz,
15A
6-IEC 320 C13
Receptacles
100-120V, 50/60 Hz,
15A
1-IEC 320 C13
Receptacle
9-NEMA 5-15R
Receptacles
200-240V, 50/60 Hz,
15A
1-IEC 320 C19
Receptacle
10-IEC 320 C13
Receptacles
Operating
Temperature
0° C to 40° C 0° C to 40° C 0° C to 40° C 0° C to 40° C
Operating Humidity 5% to 80% RH,
non-condensing
5% to 80% RH,
non-condensing
5% to 80% RH,
non-condensing
5% to 80% RH,
non-condensing
Operating
Environment
Indoor Location Indoor Location Indoor Location Indoor Location
Input 100-120V, 50/60
Hz
(N. America)
200-240V, 50/60 Hz
(International)
100-120V, 50/60 Hz
(N. America)
200-240V, 50/60 Hz
(International)
100-120V, 50/60 Hz PDUs (E4451-67000 and E4455-67000) are supplied with a
power cord terminated with a NEMA 5-20P plug to fit a 20A receptacle.
200-240V, 50/60 Hz PDUs (E4453-67000 and E4457-67000) are supplied
without a power plug—the PDU power cord is un-terminated. The installer must
install the correct plug for the country of installation.
All PDUs (100-120V or 200-240V) must be connected to a dedicated 20A
circuit.

Keysight Power Distribution Unit Installation Guide 10
General Installation Information
Use the following table to select the type of installation you are doing.
In the following tables, use the legend shown below to determine if the steps are
required for items A-F above:
Installation procedure
Columns in following
Installation Procedures tables
Type of PDU Installation
AFirstPDU-Switched*
B First PDU-Unswitched*
C Second PDU-Switched (first one was also switched)
D Second PDU-Unswitched (first one was switched)
E Second PDU-Switched (first one was unswitched)*
* Needs PDU Installation Kit
F Second PDU-Unswitched (first one was also unswitched)
A shaded cell means the step applies.
A non-shaded cell means that the step does not apply.
Step A B C D E F
1 Turn off power to the rack and disconnect AC power.
Failure to disconnect AC power could result in a severe electric shock causing
injury or death.
When the remote switch is not utilized, the plug is considered to be the
disconnect device. When the plug is the disconnect device the socket-outlet
shall be installed near the equipment and shall be readily accessible.

11 Keysight Power Distribution Unit Installation Guide
General Installation Information
Step A B C D E F
2 Remove the two screws securing the top cap to the frame at the rear of the rack. Slide the
top cap towards the rear and liftoff the top cap completely. See Figure 1.
Step A B C D E F
3 If your rack is configured with a rear door, open the door and remove the four screws
securing the side cover to the rear door hinges.
Figure 1 Removing the top cap

Keysight Power Distribution Unit Installation Guide 12
Step A B C D E F
4 Remove the two screws securing the side cover to the base of the rack enclosure. Lift
the side cover slightly up and remove completely. See Figure 2.
Step A B C D E F
5 Remove the three screw used to secure the non-switchable forehead assembly
completely. Retain the three screws as they will be re-used in step 12. See Figure 3.
Figure 2 Removing the side covers

13 Keysight Power Distribution Unit Installation Guide
General Installation Information
Figure 3 Removing the forehead assembly
Step A B C D E F
6 Snap four sheet metal clip nuts onto the column in the appropriate locations for the
PDU brackets (see the table below). Attach the two PDU brackets using four 10-32 x
0.5 inch machine screws.
See Figures 4 and 5.
Clip Nut Placement
Rack Size Top PDU Bracket Bottom PDU Bracket Door Catch
1100mm 4th Increment Mark 16th Increment Mar 1st Increment Mar
1300mm 7th Increment Mar 26th Increment Mar 4th Increment Mar
1600mm 7th Increment Mar 25th Increment Mar 13th Increment Mar
2000mm 16th Increment Mar 34th Increment Mar 22nd Increment Mar

Keysight Power Distribution Unit Installation Guide 14
Figure 4 Attaching sheet metal clip nuts to the column
Figure 5 Attaching the PDU brackets

15 Keysight Power Distribution Unit Installation Guide
General Installation Information
Step A B C D E F
7 Position the first PDU by placing it against the PDU brackets and align the inner holes that are
closest to the column on the brackets to the mounting holes in the PDU. Secure the PDU using
two 10-32 x 0.5” machine screws from the PDU kit.
If you are installing a second PDU place the second PDU against the PDU brackets and align the
outer holes on the brackets with the mounting holes of the PDU. Secure using 10-32 x 0.5”
screws from the kit. See Figure 6.
Figure 6 Attaching the PDUs
Step A B C D E F
8 Attach one end of the PDU ground cable assembly to the PDU at the bottom of the PDU
using one #10 ext. tooth star washer and one 10-31 x 0.5” machine screw. Make sure
the washer is between the PDU and the connector of the cable assembly. Make sure that
the cable does not block the PDU receptacles and the cable is not pinched. See Figure
7.

Keysight Power Distribution Unit Installation Guide 16
Figure 7 Attaching the ground cable assembly
The PDU /rack combination is a safety Class 1 product and has a
protective earthing (grounding terminal).
The PDU ground strap must be attached to the PDU and rack column
with the supplied hardware. Failure to do so can result in a sever hazard
and/or personal injury in the event of equipment failure or product
misuse.
Additionally, there must be an uninterruptible safety earth ground from
the main power source to the product’s internal wiring terminals, power
cord, or supplied cord set. Whenever it is likely that the protection has
been impaired, disconnect the power cord until the ground has been
restored.
Protect from Shock Hazards. As the number of instruments that connect
to a PDU increases, the magnitude of leakage current also increases. The
magnitude of the leakage current depends on the characteristics of each
instrument. To avoid electric shock, the PDU must connect to the
premise electrical ground system. The PDU earth ground connection
must not be interrupted in any way. Failure to provide an earth
connection can result in injury to the user and damage to the connected
instruments. To assure proper grounding, a qualified electrician should
be consulted.

17 Keysight Power Distribution Unit Installation Guide
General Installation Information
Step A B C D E F
9 Attach the other end of the PDU ground cable assembly to the nearest copper ground
stud on the fame base or the rack enclosure (there are four located on the base). Use a
10-32 nut with an external tooth captive washer and a #10 ext. tooth star washer to
secure the cable assembly to the ground stud. Again, the #10 star washer must be
placed between the frame base and the connector of the cable assembly.
To ground the second PDU, attach the PDU ground cable assembly to the bottom of the
PDU as described earlier. Attach the other end either in the same manner or to the first
PDU as shown. See Figure 7.
Step A B C D E F
10 Route the PDU switch cable harness up through the provided channel at the top of the
rack enclosure and secure the cable harness with the pre-mounted cable clips. See
Figure 8.
Step A B C D E F
11 Install the power switch supplied with your PDU Installation Kit.*Align the switch so
that the LED indicator is toward the left side (when viewed from the front), and snap it
into the forehead assembly provided in the PDU installation kit. See Figure 8.
* The power switch supplied has five terminals. If you have an older installation with a six terminal switch, see “Connecting the Old Style
Switch” on page 18.
Step A B C D E F
12 Align the switched forehead assembly to the top of the rack enclosure, and attach it
using the same three 10-32 x0.5” screws used to hold the non-switchable forehead
assembly. Tighten the screws to 20-inch pounds. See Figure 8.

Keysight Power Distribution Unit Installation Guide 18
Figure 8 Configuring the Forehead Assembly
Step A B C D E F
13 Connect the PDU switch cable harness to the dual power switch. Make sure the connectors
slide
completely onto the spade terminals on the back of the switch. See Figure 9.*
Connection from the PDU front panel switch harness and the switch in the
forehead must be made correctly to ensure normal PDU operation. Failure to do
so can result in PDU failure or inconsistent PDU operation.*
* The power switch supplied has five terminals. If you have an older installation with a six terminal switch, see “Connecting the Old
Style Switch” on page 20.

19 Keysight Power Distribution Unit Installation Guide
General Installation Information
Verify that the PDU is functioning correctly. The LED lamp on the rocker switch
should light up when the switch is in the On (1) position. The lamp should remain
unlit when the switch is in the Off (0) position.
This completes the installation of the Power Distribution Unit (PDU). Place this
Guide with your rack documentation.
Figure 9 Main Power Switch Connection (new-style switch)*
* The power switch supplied has five terminals. If you have an older installation with a six terminal switch, see “Connecting the Old
Style Switch” on page 20.
The low voltage master switch removes power only from the PDU outlet
receptacles. To completely remove power from the PDU and rack system,
the PDU power cord must be removed from the premise electrical system
or, if the rack is connected to a dedicated circuit breaker, the breaker
shall be opened.
Step A B C D E F
14 Reassemble the rack enclosure by following steps 1-4 but in reverse order. Make
sure no wires or electrical cords are pinched.
Step A B C D E F
15 Reconnect AC power to the rack enclosure.
This manual suits for next models
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