HP E G2 User Manual
HPE G2 Series Metered, Switched, and Metered & Switched Power Distribution Unit
User Guide
Abstract
This document is for the person who installs and maintains HPE PDU products. Hewlett Packard
Enterprise assumes that this person is qualified in the installation of electrical equipment and
trained in recognizing hazards in products with high energy levels.
Part Number: 879285-003
Published: May 2019
Edition: 3
©
Copyright 2018, 2019 Hewlett Packard Enterprise Development LP
Notices
The information contained herein is subject to change without notice. The only warranties for Hewlett Packard
Enterprise products and services are set forth in the express warranty statements accompanying such
products and services. Nothing herein should be construed as constituting an additional warranty. Hewlett
Packard Enterprise shall not be liable for technical or editorial errors or omissions contained herein.
Confidential computer software. Valid license from Hewlett Packard Enterprise required for possession, use,
or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software
Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under
vendor's standard commercial license.
Links to third-party websites take you outside the Hewlett Packard Enterprise website. Hewlett Packard
Enterprise has no control over and is not responsible for information outside the Hewlett Packard Enterprise
website.
Acknowledgments
Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.
Microsoft® and Windows® are either registered trademarks or trademarks of Microsoft Corporation in the
United States and/or other countries.
Contents
Before you begin......................................................................................... 7
Introduction..................................................................................................9
Overview..............................................................................................................................................7
Important safety information................................................................................................................7
Classification overview........................................................................................................................ 9
Features.............................................................................................................................................. 9
Form factors...................................................................................................................................... 10
Rack mounting options and maximum configurations.......................................................................10
Metered PDUs—rack mounting options ................................................................................ 10
Metered 0U (vertical) PDUs—maximum configuration........................................................... 11
Metered 1U PDU (true 0U)—maximum configuration............................................................ 12
Switched PDUs—rack mounting options................................................................................12
Switched 0U (Vertical) PDUs—maximum configuration......................................................... 12
Switched 1U PDU (true 0U)—maximum configuration...........................................................13
Metered & Switched PDUs—rack mounting options.............................................................. 13
Metered & Switched 0U (Vertical) PDUs—maximum configuration........................................13
Load segment and phase distinction.................................................................................................14
Power cord retention......................................................................................................................... 15
Integrated cord retention.........................................................................................................15
Locking power cord.................................................................................................................17
NEMA 5-20R outlet retention bracket.....................................................................................17
Installing the PDU...................................................................................... 21
Required tools................................................................................................................................... 21
Vertical PDU installation....................................................................................................................21
Installing cord retention brackets............................................................................................21
Installing the mounting hardware............................................................................................24
Vertical (0U) PDU—single installation.................................................................................... 24
Vertical (0U) PDU—two or more installations.........................................................................27
High-density PDU installation................................................................................................. 30
PDU shipping retention for rack transportation.......................................................................32
Installing a vertical PDU in an HPE standard G1 or 10K series rack......................................36
1U PDU installation........................................................................................................................... 38
Installing cord retention brackets (PDUs with NEMA 5-20R outlets)...................................... 38
Mounting options.................................................................................................................... 39
Mounting hardware installation...............................................................................................40
2U PDU installation........................................................................................................................... 45
Installing cord retention brackets (PDUs with NEMA 5-20R outlets)...................................... 45
Mounting options.................................................................................................................... 46
Mounting hardware installation...............................................................................................46
Grounding the PDU........................................................................................................................... 48
Connecting the ground bonding cable....................................................................................48
Connecting the PDU.................................................................................. 50
Connecting the PDU to a power source............................................................................................ 50
3
Network management module...........................................................................................................50
Using the reset button.............................................................................................................51
Connecting the PDU to a LAN...........................................................................................................51
Connecting the PDU to a computer serial port..................................................................................52
Setting up serial communication.............................................................................................53
Remote configuration................................................................................55
Dynamic Host Configuration Protocol (DHCP)..................................................................................55
Web configuration..............................................................................................................................55
Supported web browsers........................................................................................................55
Logging in to the web interface...............................................................................................55
Access privileges....................................................................................................................56
Web menu overview............................................................................................................... 62
Web menu options..................................................................................................................64
Web interface overview.......................................................................................................... 69
Simple Network Management Protocol (SNMP)..................................... 85
SNMP configuration...........................................................................................................................85
Setting up SNMP.................................................................................................................... 85
Setting up the SNMP port.......................................................................................................85
Configuring the SNMP V1/V2c user....................................................................................... 85
Configuring SNMP v1/2c Manager......................................................................................... 86
SNMP v3 Manager................................................................................................................. 86
Trap Receiver......................................................................................................................... 87
Configuring users for encrypted SNMP V3 communications.............................................................87
Configuring local access.......................................................................... 89
Connecting through a serial connection............................................................................................ 89
Connecting the PDU to a computer........................................................................................89
Supported commands.............................................................................................................89
Logging in with the CLI........................................................................................................... 90
Logging in with HyperTerminal................................................................................................90
Logging in with SSH through PuTTY......................................................................................90
Controlling outlets using SSH.................................................................................................93
Serial cable pinout to create your own cable.....................................................................................93
Local display.............................................................................................. 94
OLED display.....................................................................................................................................94
Menu mode.............................................................................................................................94
LED unit status....................................................................................................................... 94
OLED menu structure........................................................................................................................95
Main menu selections.............................................................................................................96
Setup menu............................................................................................................................ 96
Alarms menu.........................................................................................................................102
Power menu..........................................................................................................................103
Sensors menu.......................................................................................................................108
Daisy chain configuration......................................................................................................108
Connecting and configuring optional hardware................................... 110
Hardware overview.......................................................................................................................... 110
Temperature sensor..............................................................................................................112
4
Connecting a temperature sensor................................................................................................... 113
Connecting a temperature and humidity sensor.............................................................................. 113
Connecting a 3-temperature and 1-humidity sensor........................................................................113
Connecting a rope fluid leak sensor................................................................................................ 114
Connecting an Open door sensor....................................................................................................116
Connecting the sensor hub..............................................................................................................124
Detecting environmental sensors.................................................................................................... 124
Configuring environmental sensors.................................................................................................125
Configuring door sensors................................................................................................................ 125
Spares.......................................................................................................126
Ordering spares...............................................................................................................................126
Metered PDU spare parts list.......................................................................................................... 126
Switched PDU spare parts list.........................................................................................................127
Metered & Switched PDU spare parts list....................................................................................... 127
Spare options.................................................................................................................................. 128
Hardware options............................................................................................................................ 128
Websites................................................................................................... 129
Support and other resources................................................................. 130
Accessing Hewlett Packard Enterprise Support..............................................................................130
Accessing updates.......................................................................................................................... 130
Customer self repair........................................................................................................................ 131
Remote support...............................................................................................................................131
Warranty information....................................................................................................................... 131
Regulatory information.................................................................................................................... 131
Documentation feedback.................................................................................................................132
Appendix.................................................................................................. 133
Appendix A: CLI commands............................................................................................................133
Help commands....................................................................................................................133
System commands............................................................................................................... 133
Network commands..............................................................................................................137
User commands....................................................................................................................138
Device commands................................................................................................................ 139
Power commands.................................................................................................................141
System configure commands............................................................................................... 142
Network application configure commands............................................................................145
Appendix B: Firmware update procedure........................................................................................147
Updating the PDU firmware using the web UI...................................................................... 147
Updating the PDU firmware using a USB connection...........................................................147
Updating the PDU firmware using a web interface...............................................................148
Updating the PDU firmware using a Serial CLI.....................................................................148
Updating the PDU Firmware using FTP............................................................................... 148
Updating the PDU Firmware using Bootloader mode...........................................................149
Firmware recovery with bootloader mode.............................................................................149
Upgrading configuration with bootloader mode.................................................................... 150
Appendix C: PDU alarms.................................................................................................................150
Trap Codes assigned to Alarms List.....................................................................................153
Appendix D: Horizontal Network Management Module Replacement ............................................156
Appendix E: Vertical Network Management Module Replacement.................................................159
5
Appendix F: Systems Insight Manager Integration .........................................................................162
Discovering the PDU............................................................................................................ 162
Systems Insight Manager Overview..................................................................................... 163
Configuring HPE SIM to Receive Traps................................................................................164
Configuring the PDU to Send Traps to SIM..........................................................................164
6
Before you begin
Overview
This document provides installation and configuration instructions for installing a Hewlett Packard Enterprise
G2 Series Metered, Switched, and Metered & Switched Power Distribution Units into a data center rack. Read
all instructions before operating the equipment and save this document for future reference.
Important safety information
See the complete regulatory compliance notices in Safety and Compliance Information for Server, Storage,
Power, Networking, and Rack Products on the
precautions specific to this device.
This PDU is intended only for Information Technology Equipment loads with linear/Power Factor Corrected
input current. If nonlinear loads are connected, the nameplate current rating of the PDU must be reduced by a
factor of 0.8.
WARNING: A risk of personal injury from electric shock and hazardous energy levels exists. The
installation of options and routine maintenance and service of this product must be performed by
individuals who are knowledgeable about the procedures, precautions, and hazards associated with AC
power products.
SAVE THESE IMPORTANT SAFETY PRECAUTIONS
Hewlett Packard Enterprise website. Follow the safety
Follow these safety precautions when connecting multiple hardware components to power sources.
Before you begin 7
WARNING: To reduce the risk of fire, electric shock, and damage to the equipment:
• HIGH LEAKAGE CURRENT. To reduce the risk of electric shock due to high leakage currents, make
sure that there is a reliable grounded (earthed) connection before connecting power distribution
products to AC power. If many products will be connected to a single PDU, it might be necessary to
conduct an evaluation of the installation to verify the total amount of leakage current. The total
combined leakage current must not exceed 5% of the input current for the PDU and associated load.
• Connect only to a circuit that provides circuit overcurrent protection of the appropriate current rating.
• Connect the input power cord to a grounded (earthed) electrical outlet that is located near the
equipment and is easily accessible.
• Make sure that all circuit breakers are in the off position before connecting input power.
• Make sure that the devices connected to the PDU are adjusted for, or otherwise capable of,
operation from the same line voltage supplying the PDU. Failure to verify the voltage can lead to
severe equipment damage.
• Do not overload the PDU. The total input current rating of all equipment connected to each output
cannot exceed the total output rating marked on the PDU.
• Use only the hardware provided to install the PDU.
• To reduce the risk of fire or electric shock, install this PDU in a temperature and humidity-controlled,
indoor environment, free of conductive contaminants. Do not operate near water or excessive
humidity (90% maximum noncondensing).
• Ambient temperature must not exceed 0°C to 60°C (32°F to 140°F).
• The internal components can become hot during operation. Allow sufficient time for the PDU to cool
before handling.
• Do not use a two-wire power cord in any product configuration.
• To isolate this equipment, disconnect the power cord.
DANGER: This PDU contains LETHAL VOLTAGES. NO repairs should be performed on this PDU,
except for the replacement of the management card as explained in Appendix C and Appendix D.
There are NO USER-SERVICEABLE PARTS inside the PDU. The installation of options, routine
maintenance, and service of this PDU must be performed by individuals who are knowledgeable about
the procedures, precautions, and hazards associated with AC power products.
THIS EQUIPMENT MUST BE CONNECTED TO AN ELECTRICAL SUPPLY.
8 Before you begin
Introduction
Classification overview
The Hewlett Packard Enterprise G2 Series Metered, Switched, and Metered & Switched Power Distribution
Units are intelligent PDUs designed to distribute power to IT equipment installed in a rack. These PDUs are
either single-phase (1Ph) or three-phase (3Ph) models with electrical metering and switching capabilities.
Each PDU provides power distribution to IT loads through C13, C19, or NEMA 5-20R outlets. The quantity
and location of outlets vary by model. The PDUs allow you to connect and manage these outlets from a single
power connection. The PDUs are managed from a web interface or a Command Line Interface (CLI) and are
viewed from a local display.
HPE PDUs are designed for use with HPE Standard, Advanced, and Enterprise racks, but are compatible
with most third-party data center racks. The PDU models vary in form factor, with several mounting
configurations available, including the following:
• HPE Metered PDU— Provides real-time local and remote power monitoring at each load segment,
enabling users to obtain information about power usage and available circuit capacity.
• HPE Switched PDU—Offers the same features as Metered PDUs and also provides controlled on/off
switching of individual outlets and groups of outlets, power sequencing delays to minimize inrush currents,
and support for unauthorized equipment provisioning.
• HPE Metered & Switched PDU—Offers the same features as Switched PDUs and also provides individual
outlet metering instead of load segment metering.
Features
The Hewlett Packard Enterprise G2 Series Metered, Switched, and Metered & Switched Power Distribution
Units have the following features:
• Lower profile on Vertical PDUs—Increases the serviceability area in the back of the rack.
• Multiple mounting option on Vertical PDUs—Can be mounted with outlets facing toward center, front or
back of the rack.
• Higher operating temperature—All G2 Series PDUs are rated for 60˚C (140˚F) operating temperature.
• Colored receptacles—Help to easily differentiate load segments and phases.
• Integrated cord retention on all C13 and C19 receptacles—Eliminates the need for cord retention brackets.
• Optional locking cords on all C13 and C19 receptacles—Eliminates the need for tie wraps on both ends of
the power cord connection.
• 1U PDUs with multiple mounting options—Can be mounted horizontally in a U space or in the true 0U
space between the RETMA rails.
• Hot Swappable Network Management Module—Allows power distribution during module replacement,
eliminating downtime.
• 1 Gb Ethernet—Eliminates the need for older network switches.
• Daisy-chain configuration—Enables networking of up to four of the same PDUs on one IP address.
• Enhanced sensor support—Supports up to six physical sensors (with optional hub) and eight
measurements per PDU, with a total of 32 measurements in a maximum daisy-chain configuration.
Introduction 9
• Dual-color OLED display—Provides local access to view configuration settings and automatically enters
sleep mode to conserve energy.
• Dual network access—Using a redundant power delivery configuration and separate network connections,
provides facilities management and IT (or Tenant) power consumption information.
• High-density models—Provides 24 outlets in a half-height or 48 outlets in a full-height PDU, keeping out of
the back of rack serviceability area.
• Security—Firmware has self-signed images and verified boot.
Form factors
Form factor Description
0U (vertical) Vertical PDUs have half-, mid-, and full-height versions and are installed vertically in
the 0U space in the back of the rack. There are also half- and full-height high-density
models that are installed vertically in the 0U space in the back of the rack. The highdensity model is mounted on its side with the outlets facing the back of the rack.
1U 1U PDUs are installed in either a U position in the rack or in the true 0U space on the
side of the rack between the RETMA rails.
2U 2U PDUs are installed in a U position in the rack.
Rack mounting options and maximum configurations
Metered PDUs—rack mounting options
HPE P/N Form factor 0U (Vertical) 0U (between RETMA
P9R45A 1U * *
P9R46A 0U—Half height *
P9R48A 0U—Mid-height *
P9R49A 2U *
P9R50A 1U * *
P9R51A 1U * *
P9R52A 2U *
P9R53A 0U—Full-height *
P9R54A 1U * *
P9R55A 2U *
P9R56A 0U—Full-height *
P9R57A 0U—Full-height *
P9R58A 0U—Mid-height *
U position in rack
rails)
P9R59A 0U—Full-height *
P9R60A 0U—Full-height *
10 Introduction
Table Continued
HPE P/N Form factor 0U (Vertical) 0U (between RETMA
U position in rack
rails)
P9R61A 0U—Full-height *
P9R77A 1U * *
P9R78A 1U * *
P9R79A 1U * *
P9R80A 1U * *
P9R81A 1U * *
P9R82A 0U—Half-height high
density
1
P9R83A 0U—Full-height high
density
1
P9R84A 0U—Half-height high
density
1
P9R85A 0U—Full-height high
density
1
*
*
*
*
P9R86A 0U—Full-height *
P9R87A 0U—Full-height *
1
HPE high-density model mounts on its side with outlets facing the back of the rack.
Metered 0U (vertical) PDUs—maximum configuration
Mounting configuration for 0U (Vertical) PDUs in an HPE 1075 mm rack depth. These are the maximum
number of PDUs per side of rack.
HPE P/N Form factor 14U 22U 36U 42U 47U 48U
P9R46A 0U—Half-height 2 2 4 4 4
P9R48A 0U—Mid-height 2 2 2 2
P9R53A 0U—Full-height 2 2 2
P9R56A 0U—Full-height 2 2 2
P9R57A 0U—Full-height 2 2 2
P9R58A 0U—Mid-height 2 2 2 2
P9R59A 0U—Full-height 2 2 2 2
P9R60A 0U—Full-height 2 2 2
P9R61A 0U—Full-height 2 2 2
P9R82A 0U—Half-height high density
1
1 1 2 2 2
P9R86A 0U—Full-height 2 2 2
P9R83A 0U—Full-height high density
P9R84A 0U—Half-height high density
1
1
1 1 2 2 2
1 1 1
Table Continued
Introduction 11
HPE P/N Form factor 14U 22U 36U 42U 47U 48U
P9R87A 0U—Full-height 2 2 2
P9R85A 0U—Full-height high density
1
HPE high-density model mounts on its side with outlets facing the back of the rack.
1
Metered 1U PDU (true 0U)—maximum configuration
Mounting configuration for a 1U PDU in an HPE 1075 mm rack depth between the RETMA rails. These are
the maximum number of PDUs per side of rack.
HPE P/N Form factor 14U 22U 36U 42U 47U 48U
P9R45A 1U 1 2 2 6 6 6
P9R50A 1U 1 2 2 6 6 6
P9R51A 1U 1 2 2 6 6 6
P9R54A 1U 1 2 2 6 6 6
P9R77A 1U 1 2 2 6 6 6
P9R78A 1U 1 2 2 6 6 6
P9R79A 1U 1 2 2 6 6 6
1 1 1
P9R80A 1U 1 2 2 6 6 6
P9R81A 1U 1 2 2 6 6 6
Switched PDUs—rack mounting options
HPE P/N Form factor 0U (Vertical) 0U (between RETMA
P9S07A 1U * *
P9S08A 0U—Half height *
P9S09A 0U—Mid-height *
P9S10A 2U *
P9S11A 1U * *
P9S12A 0U—Half-height *
P9S13A 2U *
P9S14A 0U—Full-height *
P9S16A 2U *
P9S17A 0U—Full-height *
U position in rack
rails)
Switched 0U (Vertical) PDUs—maximum configuration
Mounting configuration for 0U (vertical) PDUs in an HPE 1075 mm rack depth. These are the maximum
number of PDUs per side of rack.
12 Introduction
HPE P/N Form factor 14U 22U 36U 42U 47U 48U
P9S08A 0U—Half-height 2 2 4 4 4
P9S09A 0U—Mid-height 2 2 2 2
P9S12A 0U—Half-height 2 2 4 4 4
P9S14A 0U—Full-height 2 2 2
P9S17A 0U—Full-height 2 2 2
Switched 1U PDU (true 0U)—maximum configuration
Mounting configuration for a 1U PDU in an HPE 1075 mm rack depth between the RETMA rails. These are
the maximum number of PDUs per side of rack.
HPE P/N Form factor 14U 22U 36U 42U 47U 48U
P9S07A 1U 1 2 2 6 6 6
P9S11A 1U 1 2 2 6 6 6
Metered & Switched PDUs—rack mounting options
HPE P/N Form factor 0U (Vertical) 0U (between RETMA
rails)
P9S15A 0U—Full-height *
P9S18A 0U—Full-height *
P9S19A 0U—Full-height *
P9S20A 0U—Full-height *
P9S21A 0U—Full-height *
P9S22A 0U—Full-height *
P9S23A 0U—Full-height
high-density
P9S24A 0U—Full-height *
P9S25A 0U—Full-height
high-density
1
HPE high-density model mounts on its side with outlets facing the back of the rack.
1
1
*
*
U position in rack
Metered & Switched 0U (Vertical) PDUs—maximum configuration
Mounting configuration for 0U (vertical) PDUs in an HPE 1075 mm rack depth. These are the maximum
number of PDUs per side of rack.
HPE P/N Form factor 14U 22U 36U 42U 47U 48U
P9S15A 0U—Full-height 2 2 2
P9S18A 0U—Full-height 2 2 2
P9S19A 0U—Full-height 2 2 2
Table Continued
Introduction 13
HPE P/N Form factor 14U 22U 36U 42U 47U 48U
P9S20A 0U—Full-height 2 2 2
P9S21A 0U—Full-height 2 2 2
P9S22A 0U—Full-height 2 2 2
P9S23A 0U—Full-height high-density
P9S24A 0U—Full-height 2 2 2
P9S25A 0U—Full-height high-density
1
HPE high-density model mounts on its side with outlets facing the back of the rack.
1
1
Load segment and phase distinction
HPE G2 PDUs have colored receptacles to help distinguish between the different load segments and phases.
All HPE 3Ph PDUs have different colored receptacles (white, light gray, and black) to distinguish the different
phases. All HPE PDUs with breakers have different colored receptacles to distinguish the different load
segments. The one exception to the colored receptacles is shown in the following illustrations. For 1Ph PDUs
with no breakers, the receptacles are all black.
1 1 1
1 1 1
Figure 1: 1Ph PDU example
Figure 2: 3Ph PDU example
There is one exception to the different colored receptacles per load segment. The 3Ph half-height highdensity model has two different load segments on each phase, as shown in the following illustration.
Figure 3: 3Ph half-height high-density PDU example (P9R82A and P9R84A)
14 Introduction
Power cord retention
Integrated cord retention
Each IEC C13 and C19 outlet on the PDU has an integrated cord retention feature that allows you to secure
the cord to the outlet without needing a cord retention bracket.
Procedure
1. Plug in the power cord.
2. Using one of the tie wraps provided, slide the end of the tie wrap into the notch on the PDU next to the
desired outlet, and then wrap it around the cord.
Introduction 15
3. Secure the tie wrap.
16 Introduction
Locking power cord
Optional locking power cords can be used on each IEC C13 and C19 outlet on the PDU. Several lengths are
available to support any configuration. The following illustration shows the locking power cord engaged with
the outlets.
NEMA 5-20R outlet retention bracket
PDUs with 5-20R outlets require installation of a separate retention bracket to secure the equipment power
cord at the outlet. For instructions on how to install the retention bracket for each form factor, see Installing
the PDU.
Introduction 17
Procedure
1. Using the screws provided, attach the bracket to one of the locations shown in the following illustrations, a
- d.
a.
b.
18 Introduction
c.
d.
2. Install the PDU into the rack.
3. Feed the tie wrap through the hole in the retention bracket and around the input cord.
Introduction 19
20 Introduction
Installing the PDU
Required tools
• Phillips screwdriver
• Torx screwdriver
Vertical PDU installation
HPE Vertical PDUs include the following form factor models:
• Half-height
• Mid-height
• Full-height
Installing cord retention brackets
The following instructions are for PDUs with NEMA 5-20R outlets, which require the installation of a separate
retention bracket to secure the input power cord at the outlet.
Procedure
1. Attach the bracket to the unit using the screws provided.
2. Install the PDU into the rack.
For more instructions, see Installing mounting hardware.
Installing the PDU 21
3. Insert the power cord.
4. Feed the tie wrap through the hole in the retention bracket and around the input cord.
22 Installing the PDU
Installing the PDU 23
Installing the mounting hardware
To assist with mounting in non-HPE racks, each vertical PDU has two mounting hole locations (M1 and M2)
on the sides and back of the PDU for installing the buttons. When installing the mounting buttons, use either
the M1 or M2 mounting holes as a set.
Installing the mounting button–outlets facing the center of the rack
Procedure
1. Align and install the mounting buttons in the screw holes on the face opposite of the receptacles.
2. Install the PDU by inserting the mounting buttons in the keyhole slots on the PDU mounting bracket in the
rack.
Installing the mounting button–outlets facing the back or front of the rack
Procedure
1. Align and install the mounting buttons in the screw holes on the side of the PDU.
2. Install the PDU by inserting the mounting buttons in the keyhole slots on the PDU mounting bracket in the
rack.
Vertical (0U) PDU—single installation
A single Vertical PDU can be installed with the outlets facing one of the following ways:
• Outlets facing the center of the rack
24 Installing the PDU
• Outlets facing the back of the rack
Installing the PDU 25
• Outlets facing the front of the rack
26 Installing the PDU
NOTE: These installation methods apply to all vertical models except for the high-density models. High-
density units must be installed on its side with the outlets facing the back of the rack. For more information,
see High-density PDU installation.
Vertical (0U) PDU—two or more installations
In order for two full-height (in a 42U/47U/48U rack), two mid-height (in a 36U/42U/47U/48U rack), or four halfheight (in a 42U/47U/48U rack) vertical units to be mounted on one side of the rack, all units must be installed
with the outlets facing towards the center of the rack. The following illustrations show how to install the units.
• Two full-height PDUs with outlets facing towards the center of the rack.
Installing the PDU 27
• Two mid-height PDUs with outlets facing towards the center of the rack.
28 Installing the PDU
• Four half-height PDUs with outlets facing towards the center of the rack.
Installing the PDU 29
High-density PDU installation
High-density PDUs have a unique form factor and are available in the following models:
• Full-height
30 Installing the PDU
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