Server Technology Switched Rack PDU Installation And Operation Manual

Switched Rack Power
Distribution Unit

Installation and Operations Manual

Firmware Version 7.0

Instructions

This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in
the literature accompanying the appliance.

Dangerous Voltage

This symbol is intended to alert the user to the presence of un-insulated dangerous voltage within the product’s enclosure that may be
of sufficient magnitude to constitute a risk of electric shock to persons.

Protective Grounding Terminal
This symbol indicates a terminal that must be connected to earth ground prior to making any other connections to the equipment.

Life-Support Policy

As a general policy, Server Technology does not recommend the use of any of its products in the following situations:

 life-support applications where failure or malfunction of the Server Technology product can be reasonably expected to cause

failure of the life-support device or to significantly affect its safety or effectiveness.

 direct patient care.

Server Technology will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory
to Server Technology that:

 the risks of injury or damage have been minimized,
 the customer assumes all such risks, and
 the liability of Server Technology is adequately protected under the circumstances.

The term life-support device includes but is not limited to neonatal oxygen analyzers, nerve stimulators (whether used for anesthesia,
pain relief or other purposes), auto-transfusion devices, blood pumps, defibrillators, arrhythmia detectors and alarms, pacemakers,
hemodialysis systems, peritoneal dialysis systems, neonatal ventilator incubators, ventilators (for adults or infants), anesthesia
ventilators, infusion pumps, and any other devices designated as “critical” by the U.S. FDA.

Notices

301-0113-1 Rev U (052016)
Copyright © 2005-2016 Server Technology, Inc. All rights reserved.
1040 Sandhill Drive
Reno, Nevada 89521 USA

All Rights Reserved

This publication is protected by copyright and all rights are reserved. No part of it may be reproduced or transmitted by any means or
in any form, without prior consent in writing from Server Technology.

The information in this document has been carefully checked and is believed to be accurate. However, changes are made
periodically. These changes are incorporated in newer publication editions. Server Technology may improve and/or change
products described in this publication at any time. Due to continuing system improvements, Server Technology is not responsible for
inaccurate information which may appear in this manual. For the latest product updates, consult the Server Technology web site at

www.servertech.com. In no event will Server Technology be liable for direct, indirect, special, exemplary, incidental, or consequential

damages resulting from any defect or omission in this document, even if advised of the possibility of such damages.

In the interest of continued product development, Server Technology reserves the right to make improvements in this document and
the products it describes at any time, without notices or obligation.

The Globe logo is a trademark of Server Technology, Inc., registered in the US. Use of the logos for commercial purposes without
the prior written consent of Server Technology may constitute trademark infringement and unfair competition in violation of federal
and state laws.

Server Technology, the Globe logo, Sentry, Switched CDU, CDU, PRO2, PIPS, POPS, PDU Power Pivot, and StartUp Stick are
trademarks of Server Technology, Inc., registered in the US. EZip is a trademark of Server Technology.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their
products. Server Technology, Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

Please Recycle
Shipping materials are recyclable. Please save them for later use, or dispose of them appropriately.

Table of Contents

CHAPTER 1: INTRODUCTION 4

Quick Installation Checklist ............................................................................................................. 4

Technical Support ................................................................ ................................ ............................ 4

PDU Power Pivot  .......................................................................................................................... 5

Equipment Overview ....................................................................................................................... 6

IPv6 and Server Technology Products ............................................................................................. 7

CHAPTER 2: INSTALLATION 10

Standard Accessories ..................................................................................................................... 10

Optional Accessories ..................................................................................................................... 10

Additional Required Items ............................................................................................................. 10

Safety Precautions ......................................................................................................................... 11

NEBS GR-1089-Core Information ................................................................................................ 12

Input Power Cord Retention Options for PDUs with IEC C20 Inlets ............................................ 13

Attaching Safety Earth Ground Connection .................................................................................. 14

Mounting the PDU ......................................................................................................................... 15

Attaching the Expansion Module................................................................................................... 16

Connecting to the Power Source .................................................................................................... 16

Connecting Devices ....................................................................................................................... 16

Connecting the Sensors .................................................................................................................. 16

Connecting to the Unit ................................................................................................................... 16

CHAPTER 3: OPERATIONS 19

Interfaces ....................................................................................................................................... 21

Web Interface................................................................................................................................. 22

Command Line Interface ............................................................................................................... 53

CHAPTER 4: ADVANCED OPERATIONS 97

SSL ................................................................................................................................................ 98

SSH .............................................................................................................................................. 100

SNMP/Thresholds ........................................................................................................................ 102

LDAP ........................................................................................................................................... 116

TACACS+ ................................................................................................................................... 126

RADIUS ...................................................................................................................................... 132

Logging ........................................................................................................................................ 136

Upload/Download ........................................................................................................................ 141

Remote Shutdown ........................................................................................................................ 143

CHAPTER 5: APPENDICES 147

Appendix A: Resetting to Factory Defaults ................................................................................. 147

Appendix B: Uploading Firmware............................................................................................... 148

Appendix C: Technical Specifications ......................................................................................... 149

Appendix D: Product Support Information .................................................................................. 156

4  Introduction Switched PDU
Installation and Operations Manual

Chapter 1: Introduction

Quick Installation Checklist

The following steps are recommended to quickly install and configure the Switched PDU for use in your data
center equipment cabinet:

1. Mount the Switched PDU.

2. Connect to the power source.

3. Connect the devices.

4. Connect the sensors.

5. Connect to the Switched PDU.

6. Configure the Switched PDU.

 Login as the predefined Administrator (admn/admn).
 Configure the network settings.
 Create new administrative user account.
 Configure location and Switched PDU names.
 Configure sensor names.
 Configure new user account(s).
 Remove the predefined Administrator account “admn”.

7. Connect the Switched PDU to the network.

Technical Support

Experience Server Technology's FREE Technical Support

Server Technology  understands that there are often questions when installing and/or using a new product. Free
Technical Support is provided from 8 a.m. to 5 p.m. PST, Monday through Friday. After-hours service is provided to
ensure your requests are handled quickly no matter what time zone or country you are located in.

Server Technology, Inc.
1040 Sandhill Drive Tel: [phone] Web: www.servertech.com
Reno, Nevada 89521 USA Fax: [phone] Email: [e-mail]

Switched PDU
Installation and Operations Manual Introduction  5

PDU Power Pivot 

Server Technology’s PDU Power Pivot flexible infeed provides a simplified power cord routing to the unit with a design that
eliminates bend radius issues.

As illustrated below, the PDU Power Pivot capability can deliver a solution for several types of PDU installations and
mountings, setting the correct cord angle for overhead power, offset overhead power, concrete floor, raised floor, and intra-rack
power.

PDU Power Pivot – Flexible Cord Design

To learn more about PDU Power Pivot and watch a brief video that animates the PDU Power Pivot mounting angles in the
equipment rack, see the Server Technology website at: http://info.servertech.com/PDUpowerpivot

6  Introduction Switched PDU
Installation and Operations Manual

Equipment Overview

1. The power inlet/cord(s) connects the PDU to the electrical power source.

2. The Current LED(s) displays the current load for each infeed, branch or electrical phase per infeed.

3. Two RJ45 connectors for Serial (RS-232) and Ethernet connection.

4. Two mini RJ11 connectors for Temperature/Humidity sensors.
A number is printed above each outlet. These numbers can be used in commands that require an outlet name.

1

2

4

3

4

3

2

1

Switched Rack Power Distribution Unit

Switched PDU
Installation and Operations Manual Introduction  7

IPv6 and Server Technology Products

Server Technology is introducing IPv6 “dual stack” support to the PDU product line. IPv6 has been designed to
succeed IPv4 as the dominant communications protocol for internet traffic, to avoid depletions of the IPv4 address
space, and to allow more IP address growth. Many devices already in use support IPv6.

IPv6 has several new operational methods:

 Static IPv6 Address: The IPv6 equivalent of Static IPv4.
 DHCPv6 Address: The IPv6 equivalent of a DHCP IPv4 address, also known as a “stateful” auto-

configuration of DHCPv6.

 IPv6 Stateless Auto-Configured Address – (RFC 4862): An automatically-generated unique link-local IPv6

address used for client based configurations. This address is always present in the Server Technology dual
stack and cannot be disabled.

 DHCPv6 Stateless Auto-Configured Address – (RFC 3736): A “stateless” Dynamic Host Configuration

Protocol (DHCP) service for IPv6 (DHCPv6). This address is used by nodes to obtain configuration
information, such as addresses of DNS recursive name servers that do not require the maintenance of any
dynamic state for individual clients.

Firmware – Protocol Support

IPv6 and IPv4 Protocols:

The firmware supports the following network IPv6 and IPv4 protocols:

 DNS Ping
 FTP (or SFTP) Server SNMPv1/2/3
 FTP (or SFTP) Updates SNTP
 HTTP or HTTPS
 SMTP
 Static IPv6 DHCPv6 (stateless and stateful)
 Syslog SNMPv1/2/3 Traps
 Telnet SSH

IPv4-Only Protocols:

The firmware supports the following network IPv4-only protocols:

 Cisco EnergyWise
 LDAP
 Load Shedding *
 RADIUS *
 TACACS+

* = may work with IPv6 addresses, but not tested.

8  Introduction Switched PDU
Installation and Operations Manual

Network-Enabled Modes

NOTES:

 For all network-enabled modes described below, the PDU will set an auto-configured IPv6 address, and if IPv6 router announcements are
active, a stateless DHCP IPv6 address will also be set. Further, in all network-enabled modes, at least one IPv4 or one IPv6 address will
be active.

 For maximum backward compatibility, the default network mode is “IPv4 only”.

 Network disabled – No IPv4 or IPv6 addresses available.
 IPv4 only, DHCP disabled (static IPv4) – If the IPv4 Static Address and Net Mask of the PDU are valid,

they will be set.

 IPv4 only, DHCP enabled (DHCP IPv4) – The PDU will try to resolve an IPv4 DHCP address. If a DHCP

address cannot be obtained after 90 seconds, the PDU can: (1) optionally fall back to its static IPv4 settings,
or (2) indefinitely wait to acquire an address based on DHCP configuration settings. This setting is the

default.

 Dual IPv6/IPv4, DHCP disabled (static IPv6/IPv4) – If the IPv6 Static Address and prefix of the PDU are

valid, they will be set. Otherwise, the PDU will attempt to use DHCPv6 to obtain an IPv6 address.
In addition, if the IPv4 Static Address and Net Mask of the PDU are valid, they will be set.

 Dual IPv6/IPv4, DHCP enabled (DHCP IPv6/IPv4) – The PDU will try to resolve both its IPv6 and IPv4

addresses by DHCP. If both DHCP requests are answered, the primary DNS server of the PDU will become
the primary IPv6 DNS server, and the secondary DNS server of the PDU will become the primary IPv4
DNS server.

If only one of the DHCP requests is answered, the DNS servers of the PDU will map to the primary and
secondary DNS server from that request.

If a DHCP address cannot be obtained after 90 seconds, the PDU can: (1) optionally fall back to its static
IPv4 and/or IPv6 settings, or (2) indefinitely wait to acquire an address based on DHCP configuration
settings.

Switched PDU
Installation and Operations Manual Introduction  9

Viewing Network Status

You can obtain the IPv6 network status through the firmware Web Interface or Command Line Interface (CLI). For
the CLI, use the show network command as follows:

Switched CDU: show network

Network Settings

State: DHCP IPv6/IPv4 Network: Dual IPv6/IPv4

Link: Up Negotiation: Auto

Speed: 100 Mbps Duplex: Full

AutoCfg IPv6: FE80::20A:9CFF:FE52:4104/64

IPv6 Address: FD01::1:B51A:E03C/64

IPv4 Address: 10.1.6.230 Subnet Mask: 255.255.0.0

IPv4 Gateway: 10.1.1.1

DNS1: FD01::A01:585

DNS2: 10.1.5.133

Static IPv4/IPv6 Settings

IPv6 Address: FD01::A01:353/64

IPv6 Gateway: ::

IPv4 Address: 10.1.2.253 Subnet Mask: 255.255.0.0

IPv4 Gateway: 10.1.1.1

DNS1: 10.1.5.133

DNS2: 10.1.5.134

DHCP Settings

DHCP: Enabled

FQDN: Enabled [sentry3-524104]

Boot Delay: Enabled

Static Fallback: Enabled

Network Services

Telnet: Enabled Port: 23

SSH: Enabled Port: 22 Auth: Password, Kb-Int

HTTP: Enabled Port: 80

SSL: Enabled Port: 443 Installed Cert: User Encrypted

Access: Optional Stored Files: Cert & Key

User Cert: Enabled User Passphrase: <set>

SNMPv1/2: Enabled Port: 161 TrapPort: 162

SNMPv3: Disabled Port: 161 TrapPort: 162

FTP Server: Enabled Port: 21

SPM Access: Enabled

Command successful

NOTE: The fields IPv4 Address, IPv4 Subnet Mask, IPv4 Gateway, DNS1, and DNS2 are equivalent to existing IPv4 settings except that
current network settings and static settings are displayed separately. This allows you to view both static configuration settings and active
network settings that can be obtained using DHCP. The DNS addresses may be in IPv4 or IPv6 (based on RFC4291) format at this time.

10  Installation Switched PDU
Installation and Operations Manual

Chapter 2: Installation

Before installing your Switched Rack Power Distribution Unit, refer to the following lists to make sure you have all
the items shipped with the unit, as well as other items needed for proper installation.

Standard Accessories

Mounting Hardware

Vertical Models:

Button mounting kit with M4 screws.

Horizontal Models:

Two removable L-brackets with four M4 screws.

Expansion Models:

RJ12 to RJ12 crossover cable.

Additional Items for Models with C20 Inlets

 Separate power input.
 Optional power input retention bracket hardware (can be installed); two removable T-brackets with two 40 mm

screws per input.

Note: This bracket is not compatible with Server Technology Input Power Cords with the self-locking C19
feature. These power cords have the prefix PTCORD-L#.

Optional Accessories

 Temperature/humidity sensors (Part Number EMTH-1-1).
 Environmental monitor (Part Number EMCU-1-1B).
 Vertical mounting brackets; additional mounting options are available in the Accessories section of the

Server Technology website at www.servertech.com.

Additional Required Items

 Flathead and Phillips screwdrivers.
 Screws, washers, and nuts to attach the PDU to your equipment rack.

Switched PDU
Installation and Operations Manual Installation  11

Safety Precautions

This section contains important safety and regulatory information that must be reviewed before installing and using
the Switched Rack Power Distribution Unit.

Only for installation and use in a
Restricted Access Location in
accordance with the following
installation and use instructions.

This equipment should only be
installed by trained personnel.

Destiné à l'installation et l'utilisation dans le
cadre de Restricted Access Location selon
les instructions d'installation et d'utilisation.

Cet équipement est uniquement destiné
à être installé par personnel qualifié.

Nur für Installation und Gebrauch in
eingeschränkten Betriebszonen gemäß der
folgenden Installations-und
Gebrauchsanweisungen.

Dieses Gerät ist nur für den Einbau
durch Personal vorgesehen.

This equipment is designed to be
installed on a dedicated circuit.
The power supply cord shall be a
minimum of 1.5m (4.9ft) and a
maximum of 4.5m (15ft). If using
an extension power cord, the total
length shall also be no more than
the maximum allowed. The plug is
considered the disconnect device
and must be easily accessible.

Cet équipement a été conçu pour être
installé que un circuit dédié. Le cordon

d’alimentation doit être d’au moins 1,5M et

un maximum de 4,5m. Si vous utilisez un
cordon de rallonge, la longueur totale est
également plus que le maximum autorise.
La prise est considérée comme un
dispositif de coupure et doit être facilement
accessible.

Die Geräte sind für eine Installation an
einer fest zugeordneten Leitung ausgelegt.
Die Stromzuleitung hat eine Mindestlänge
von 1,5m, und hochstens 4,5m. Sollten Sie
ein Verlangerrungsnetzkabel, der
Gesamtlange auch nicht mehr als die
maximal zulassige sein. Der Stecker dient
zur Trennung vom Netz und muss einfach
erreichbar sein.

The dedicated circuit must have
circuit breaker or fuse protection.
PDUs have been designed without
a master circuit breaker or fuse to
avoid becoming a single point of

failure. It is the customer’s

responsibility to provide adequate
protection for the dedicated power
circuit. Protection of capacity equal
to the current rating of the PDU
must be provided and must meet
all applicable codes and
regulations. In North America,
protection must have a 10,000A
interrupt capacity.

Le circuit spécialisé doit avoir un disjoncteur
ou une protection de fusible. PDUs ont été
conçus sans disjoncteur général ni fusible
pour éviter que cela devient un seul endroit

de panne. C’est la responsabilité du client

de fournir une protection adéquate pour le
circuit-alimentation spécialisé. Protection de
capacité équivalant à la puissance de
l'équipement, et respectant tous les codes
et normes applicables. Les disjoncteurs ou
fusibles destinés à l'installation en Amérique
du Nord doivent avoir une capacité
d'interruption de 10.000 A.

Der feste Stromkreis muss mit einem
Schutzschalter oder einem
Sicherungsschutz versehen sein. PDUs
verfügt über keinen Hauptschutzschalter
bzw. über keine Sicherung, damit kein
einzelner Fehlerpunkt entstehen kann. Der
Kunde ist dafür verantwortlich, den
Stromkreis sachgemäß zu schützen. Der
Kapazitätsschutz entspricht der aktuellen
Stromstärke der Geräte und muss alle
relevanten Codes und Bestimmungen
erfüllen. Für Installation in Nordamerika
müssen Ausschalter bzw. Sicherung über

10.000 A Unterbrechungskapazität
verfügen.

Models with unterminated power
cords: Input connector must be
installed by qualified service
personnel. Input connector rating
must meet all applicable codes and
regulations.

Modèles avec cordons d'alimentation non

terminées: Le connecteur d’entrée doit être

installé par un personnel qualifié. Entrée

cote de raccordement doit respecter tous
les codes et règlements électriques
applicables.

Modelle mit nicht abgeschlossenen

Netzkabel: Der Eingangsstecker darf nur

von qualifiziertem Wartungspersonal
installiert werden. Eingangsanschluss

Bewertung müssen alle geltenden und
verbindlichen Normen und Vorschriften
entsprechen.

Do not block venting holes when
installing this product. Allow for
maximum airflow at all times.

Ne bloquez pas les orifices d'aération lors
de l'installation de ce produit. Permettre une
circulation d'air maximale à tout moment.

Achten Sie darauf, dass keine
Belüftungslöcher bei der Installation dieses
Produkts. Damit für maximalen Luftstrom
zu allen Zeiten.

Installation Orientation: Vertical
units are designed to be installed
in vertical orientation.

Installation Orientation: Les unités vertical
sont conçues pour être installées dans une
orientation verticale.

Installationsausrichtung: Vertical Einheiten
sind zur vertikalen Installation vorgesehen.

Always disconnect the power
supply cord before servicing to
avoid electrical shock. For
products with two input power
cords, both must be disconnected
before servicing.

Toujours débrancher le cordon
d'alimentation avant de l'ouverture pour
éviter un choc électrique. Pour les produits
avec deux cordons d'alimentation d'entrée,
les deux doivent être déconnectés avant
l'entretien.

Trennen Sie das Netzkabel, bevor Sie
Wartungsarbeiten Öffnung einen
elektrischen Schlag zu vermeiden. Für
Produkte mit zwei Eingangsstromkabel,
sowohl, müssen vor der Wartung
abgeschaltet werden.

WARNING! High leakage current!
Earth connection is essential
before connecting supply!

ATTENTION! Haut fuite très possible! Une
connection de masse est essentielle avant
de connecter l’alimentation !

ACHTUNG! Hoher Ableitstrom! Ein
Erdungsanschluss ist vor dem Einschalten
der Stromzufuhr erforderlich!

WARNING! Cx-xxE-x units double
pole/neutral fusing

ATTENTION! Les unités Cx-xxE-x Double
Pôle/Fusible sur le Neutre

ACHTUNG!: Cx-xxE-x Zweipolige bzw.
Neutralleiter-Sicherung

ATTENTION! Observe precautions
for handling Electrostatic Sensitive
Devices.

Attention ! Respecter les mesures de
sécurité en manipulant des dispositifs
sensibles aux décharges électrostatiques.

Achtung! Vorsichtshinweise zur
Handhabung elektrostatisch empfindlicher
Geräte beachten.

Products rated for 240/415VAC
may be fitted with a plug that is
rated for a higher voltage. Caution
must be taken to assure that the
rating of the unit and the supply
voltage match.

Les produits prévus pour 240/415VAC peut
être équipé d'un bouchon qui est conçu
pour une tension plus élevée. Des
précautions doivent être prises pour assurer

que la cote de l’unité et la tension
d’alimentation correspond.

Produkte die für 240/415VAC zugelassen
sind können mit einem Stecker der für eine
höhere Spannung ausgestattet sein.
Vorsicht ist geboten, um sicherzustellen,
dass die erlaubten Betriebswerte des
Gerätes und der Versorgungsspannung
zueinander passen.

12  Installation Switched PDU
Installation and Operations Manual

NEBS GR-1089-Core Information

For NEBS certified products only.

These products are intended to be installed in Network Communications Facilities and in locations where the NEC applies.

This product is suitable for installation in a Common Bonding Network (CBN).

WARNING: The intra-building port(s) of the equipment or subassembly is suitable for connection to intra-building or
unexposed wiring or cabling only. The intra-building port(s) of the equipment or subassembly MUST NOT be metallically
connected to interfaces that connect to the OSP or its wiring.

These interfaces are designed for use as intra-building interfaces only (Type 2 or Type 4 ports as described in
GR-1089-CORE, Issue 5) and require isolation from the exposed OSP cabling. The addition of Primary Protectors is not
sufficient protection in order to connect these interfaces metallically to OSP wiring.

Switched PDU
Installation and Operations Manual Installation  13

Input Power Cord Retention Options for PDUs with IEC C20 Inlets

Determine which Detachable Input Cord was supplied with the unit:

For the following Detachable Input Cords with the self-locking
IEC C19 feature, follow Procedure A below.

PTCORD-L1, PTCORD-L2, PTCORD-L3, PTCORD-L5, PTCORD-L6, or
PTCORD-L7.

For the following Detachable Input Cords, follow Procedure B below.

PTCORD-1, PTCORD-2, PTCORD-3, PTCORD-4, PTCORD-5, PTCORD-6,
or PTCORD-7.

Procedure A

If the unit was supplied with a Detachable Input Power Cord with a self-locking IEC C19, install it directly into the
C20 inlet.

1. Verify the Retention Bracket Assembly (part number KIT-0016) is not installed.
a. If KIT-0016 is installed, remove the two screws attaching the bracket to the IEC 60320 C20 inlet

to the enclosure.

b. Remove the Retention Bracket Assembly.
c. Re-attach the two screws to the IEC C20 and securely tighten.

2. Push the C19 from the Detachable Input Cord firmly into the C20 inlet to ensure it is properly seated.

C20 Inlet without Retention Bracket Assembly KIT-0016, Retention Bracket Assembly

Procedure B

If the unit was supplied with a Detachable Input Power Cord without the self-locking C19 feature, install with the
Retention Bracket Assembly (part number KIT-0016), followed by the power cord.

1. Remove the two screws attaching the IEC 60320 C20 inlet to the enclosure.

2. Assemble and attach the Retention Bracket to the enclosure as shown

3. Connect the power cord. Ensure the C19 is fully seated against the C20 inlet. (It may be necessary to loosen

some of the Retention Bracket Assembly screws to allow the C19 plug to be properly installed.)

4. Tighten the Retention Bracket Assembly to restrain the power cord.

14  Installation Switched PDU

Installation and Operations Manual

Attaching Safety Earth Ground Connection

Server Technology PDUs are supplied with an external safety ground connection to provide an alternate ground path for fault
currents, and to maintain the same ground reference between it and the equipment rack.

NOTE: The auxiliary external ground location may vary. Most PDUs will have it located near the power cord entry located near the symbol.

User-supplied materials:

 One 5 mm internal (or external) tooth star washer;
 One 4.0 mm

2

(10 AWG) wire with 5 mm ring terminal;

 One metric M5 x 6 mm coarse pitch screw.

Instructions:

1. Connect one end of the ground wire to the equipment cabinet or local ground.

2. Locate the PDU external ground near the symbol.

3. Connect the other end with a ring terminal and a M5 screw to the PDU external ground. To ensure proper grounding

to the chassis, use a star washer between the ring terminal and the PDU.

Switched PDU
Installation and Operations Manual Installation  15

Mounting the PDU

The following illustration shows how to mount the Switched PDU in vertical or horizontal orientation:

Horizontal/Rack

1. Select the appropriate bracket mounting points for proper mounting depth within the rack.

2. Attach the L-brackets to these mounting points with two screws for each bracket.

3. Install the enclosure into your rack, using the slots in each bracket. The slots allow about 6 mm (0.25 inch) of

horizontal adaptability to align with the mounting holes of your rack.

Vertical

The Switched PDU is supplied with button mounting kit(s). Distribute the buttons vertically and attach to the PDU as
appropriate for the cabinet. An additional 19 mm (0.75 inch) of clearance is required at the top of the PDU to allow the
button to mount into the keyholes.

Note: For more information about horizontal/vertical mounting options for the Switched PDU, see the

Server Technology PDU Mounting Bracket Catalog:

http://cdn1.servertech.com/assets/documents/documents/1803/original/Mounting_Bracket_Catalog.2014­12-30.pdf?1420823515

16  Installation Switched PDU
Installation and Operations Manual

Attaching the Expansion Module

Connect the expansion module unit with the provided RJ12 crossover cable at the Link port on the Switched PDU.

NOTE: The overall length of the RJ12 crossover cable should not exceed 10 feet.

Connecting to the Power Source

On 30A units, the input power cord is attached to the base of the unit. On units with a total maximum output <30A,
you must first attach the power cord to the unit before connecting the unit to the power source.

To attach a power cord to the unit:

1. Plug the female end of the power cord firmly into its connector at the base.

2. Use a screwdriver to tighten the two screws on the retention bracket.

To connect to the power source:

Plug the male end of the power cord into the AC power source.

Connecting Devices

To avoid the possibility of noise due to arcing:

1. Keep the device’s on/off switch in the off position until after it is plugged into the outlet.

2. Connect devices to the PDU outlets.

NOTE: Server Technology recommends even distribution of attached devices across all available outlets to avoid exceeding the outlet,
branch or phase limitations.

Always disconnect ALL power supply cords before opening to avoid electrical shock.
Afin d’éviter les chocs électriques, débranchez TOUTES les cables électrique avant d’ouvrir.

Vor dem Offnen immer Netzleitung abziehen um elektrischen Schlag zu vermeiden.

Connecting the Sensors

The Switched PDU is equipped with two mini RJ11 T/H ports for attachment of the Temperature/Humidity sensors.
Attach the mini RJ11 plug of the sensor(s) to the appropriate T/H port.

Connecting to the Unit

Serial (RS232) Port

The Switched Cabinet Distribution Unit is equipped with an RJ45 Serial RS-232 port for attachment to a PC or
networked terminal server using the supplied RJ45 to RJ45 crossover cable and RJ45 to DB9F serial port adapter as
required. For more information about the Serial RS-232 port, see the “Data Connections” section in Appendix C:
Technical Specifications.

Switched PDU
Installation and Operations Manual Installation  17

Ethernet Port

The Switched Cabinet Distribution Unit is equipped with an RJ45 10/100Base-T Ethernet port for attachment to an
existing network. This connection allows access to the Switched PDU via Telnet or Web.

The Switched PDU is configured with the following network defaults to allow unit configuration out-of-the-box
through either Telnet or Web:

NOTE: When installed on a DHCP enabled networks, the following network defaults do not apply because the PDU ships with DHCP
support enabled.

 IP address: 192.168.1.254
 Subnet Mask: 255.255.255.0
 Gateway: 192.168.1.1

The local PC network connection must be configured as noted below:

NOTE: For instructions about reconfiguring the network connection, contact your system administrator. A restart may be required for the
reconfiguration of your network to take effect.

 IP address: 192.168.1.x (where x is 2-253)
 Subnet Mask: 255.255.255.0

Chapter 3: Operations

INTERFACES 21

Outlet Naming and Grouping 21

Models with a Single Power Infeed ...................................................................................... 21

Models with Multiple Power Infeeds .................................................................................... 21

Usernames and Passwords 21

WEB INTERFACE 22

Logging In 22
System Summary 23
Outlet Control 26

Individual ............................................................................................................................. 26

Group ................................................................................................................................... 26

Power Monitoring 27

Input Feeds........................................................................................................................... 27

System .................................................................................................................................. 27

UPS ...................................................................................................................................... 27

Environmental Monitoring 28

Sensors ................................................................................................................................. 28

Shutdown 28

Outlets .................................................................................................................................. 28

Configuration 28

System .................................................................................................................................. 28

Network ................................................................................................................................ 31

Telnet/SSH............................................................................................................................ 33

HTTP/SSL ............................................................................................................................ 34

Serial Ports .......................................................................................................................... 35

Towers .................................................................................................................................. 37

Input Feeds........................................................................................................................... 38

UPS ...................................................................................................................................... 38

Outlets .................................................................................................................................. 39

Groups ................................................................................................................................. 39

Users .................................................................................................................................... 40

FTP ...................................................................................................................................... 42

SNTP/Syslog ......................................................................................................................... 43

SNMP/Thresholds ................................................................................................................ 44

LDAP ................................................................................................................................... 46

TACACS+ ............................................................................................................................ 48

RADIUS ............................................................................................................................... 50

SMTP/Email ......................................................................................................................... 51

Features ............................................................................................................................... 52

Tools 52

Ping ...................................................................................................................................... 52

Change Password ................................................................................................................ 52

Firmware.............................................................................................................................. 52

View Log .............................................................................................................................. 52

Restart .................................................................................................................................. 52

COMMAND LINE INTERFACE 53

Logging In 53
Operations Commands 56
Administration Commands 61

User Administration ................................................................................................ ............. 61

Outlet Administration ........................................................................................................... 65

Input Feed Administration ................................................................................................... 67

Tower Administration .......................................................................................................... 68

Group Administration .......................................................................................................... 70

Environmental Monitor Administration ............................................................................... 72

Serial Port Administration ................................................................................................... 72

System Administration .......................................................................................................... 75

TCP/IP Administration ........................................................................................................ 83

HTTP Administration ........................................................................................................... 86

20  Operations Switched PDU
Installation and Operations Manual

Sentry Power Manager (SPM) Administration .................................................................... 86

Telnet Administration ........................................................................................................... 87

FTP Administration .............................................................................................................. 87

SNTP Administration ........................................................................................................... 89

UPS Administration ............................................................................................................. 91

Feature Administration ........................................................................................................ 95

Switched PDU
Installation and Operations Manual Operations  21

Interfaces

The Switched Cabinet Distribution Unit has two interfaces: the Web interface accessed via the HTTP enabled
Ethernet connections, and the command line for serial and Telnet connections.

Outlet Naming and Grouping

Models with a Single Power Infeed

Absolute names are specified by a period (.) followed by a tower letter and outlet number. The tower letter for the
Switched Cabinet Distribution Unit is A and the tower letter for the optional Expansion Module is B.

Models with Multiple Power Infeeds

For units with multiple infeed connectors, absolute names are specified by a period (.) followed by the tower letter,
the infeed letter and outlet number.

Example: The absolute name for outlet 8 on the B infeed of tower A is .AB8.
Outlets can also be included in one or more named groups of outlets, enabling you to issue a command that affects all

outlets in a named group.

Usernames and Passwords

The Switched Cabinet Distribution Unit has one predefined administrative user account (username/password:
admn/admn), and supports a maximum of 112 defined user accounts.

NOTE: For security, Server Technology recommends removal of the predefined administrative user account after a new account with
administrative rights has been created.

Only an administrative-level user can perform operations such as creating/removing user accounts and command
privileges, changing passwords and displaying user information. An administrator can also view the status of all sensors
and power inputs.

Usernames can contain from 1-16 characters and are not case sensitive; spaces are not allowed. Passwords can
contain up to 16 characters, and are case sensitive.

22  Operations Switched PDU
Installation and Operations Manual

Web Interface

The Web Interface provides web-based access to the firmware. The interface is designed with three major sections,
illustrated below.

1. System Header: Shows PDU description and location, IP address, and user/access.

2. Navigation Bar: Provides access to PDU configuration, control action, or status page.

3. Details Window: Current control/status information based on the page selected from the navigation bar.

NOTE: The blinking of the PDU location string (IP address) in the System Header section may not work with all web browsers.

This example shows the Outlet Control > Individual page:

Example of Firmware Web Interface for the Switched PDU

Logging In

Logging in through the Web interface requires directing the Web client to the configured IP address of the unit.

To log in by Web interface:

In the login window, enter a valid username and password and click OK.
If you enter an invalid username or password, you will be prompted again.
You are given three attempts to enter a valid username and password combination. If all three fail, the session ends

and a protected page will be displayed.

NOTE: The default username/password is admn/admn.

Switched PDU
Installation and Operations Manual Operations  23

System Summary

The System Summary is typically displayed as the default page at user login to the firmware Web Interface. If you do
not have environmental monitor access for a PDU, your default page at login will be the Outlet Control page (shown
in Figure 3 above).

Both the System Summary page and the Outlet Control page display automatically at login and do not require
enabling.

The System Summary page contains general system, line, humidity, and temperature status information. The color­coded sensor graphs shown in the example below provide a quick and efficient real-time view for monitoring
environmental conditions in your PDU network.

Example of System Summary Page

The System Summary page displays precise current and system power consumption in your PDU network. Dynamic
updates (without a full page refresh) allow you to assess critical system statistics with close to instantaneous
feedback. This performance is useful for monitoring new installation or power distribution changes in high-density
computing environments. Power system administrators can also quickly identify thermal and humidity concerns that
might otherwise escalate into costly infrastructure repairs if left unchecked.

As long as the System Summary page is active, the sensor graphs are continually updating system statistics and
threshold values. The data with the most impact on the system is displayed to reduce your analysis and
troubleshooting time. You can quickly analyze and correct a PDU if a sudden operating condition affects your device
network.

NOTE: Because the System Summary page continually requests updated status information from the PDU, the page does not time-out. You
will need to navigate to another page or manually log off.

System Information

Uptime: Displays the cumulative time the PDU has been up and running since the last unit restarted. Uptime shows
continuous, real-time system updates with an approximate 5-second automatic refresh. A manual refresh of the
System Summary page is not required.

Firmware Version: Shows the current firmware version.
Ethernet NIC S/N: Displays the PDU serial number derived from the Ethernet NIC.

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Installation and Operations Manual

Active Users: Displays the number of active user sessions accessing the firmware. These sessions include serial,
TELNET, SSH, and Web sessions. Active Users also shows sessions that an unauthorized user may be attempting to
access. The number shown in Active Users changes instantly as the number of active user sessions change. A total of
4 concurrent web user sessions are allowed (HTTP or HTTPS).

NOTE: Depending on your web browser, multiple web accesses from the same machine are often treated as one user.

Total Power Consumption: Displays the total system power (in Watts) being distributed by the current PDU

configuration.

Line Status

The Line Status graph displays a blinking warning (yellow), whenever the total input load on an infeed exceeds the
present user set threshold. If an overload occurs, a blinking error condition (red) is displayed. The unit continues to
display these yellow and red states until the condition changes or the problem has been resolved.

The default input feed high load threshold is 80% of the input feed maximum load capacity.

NOTE: The input feed high threshold is user-defined. You must configure this threshold value on the SNMP/Thresholds page or the
Command Line Interface (CLI).

Temperature Status

The Temperature Status graph displays a blinking error whenever temperature exceeds the low or high threshold. The
PDU will continue to display this state until the condition changes or the problem has been resolved.

For the temperature sensor, the default range of low/high temperature values is 5º-45º C (41º-115º F).
Up to four sets of dual temperature/humidity sensors can be displayed in this graph for a total of eight possible

temperature sensor graphs. A thin blue line separates each set based on the tower or environmental monitor.

NOTE: The temperature threshold values are user-defined. You must configure these threshold values on the SNMP/Thresholds page or the
Command Line Interface (CLI).

Humidity Status

The Humidity Status graph displays a blinking error whenever humidity exceeds the low or high threshold. The PDU
will continue to display this state until the condition changes or the problem has been resolved.

For the humidity sensor, the default range of low/high humidity percentage is 0-100% (relative humidity).
Up to four sets of dual temperature/humidity sensors can be displayed in this graph for a total of eight possible

humidity sensor graphs. A thin blue line separates each set based on the tower or environmental monitor.

NOTE: The humidity threshold values are user-defined. You must configure these threshold values on the SNMP/Thresholds page or the
Command Line Interface (CLI).

Field Descriptions

The following fields and icons are viewed left to right for Line Status, Temperature Status, and Humidity Status:

Icon: Provides quick viewing of current operational state: Information , Warning and Critical .
ID: Device input feed or sensor identifier.
Name: Descriptive, user-defined name for each input infeed or sensor.
Load, Temp, Humidity: Current state of the reported input load (in amps), current temperature, or current

percentage of relative humidity.
Low Limit: Displays the user-defined low limit of the load, temperature, or humidity graph. These values depend on

the sensor limited and cannot be set by the user. For example, a 0ºC low limit would be displayed as for a
temperature sensor graph in Celsius.

Sensor Graph and Level Indicator: The horizontal sensor graph shows current operating conditions in color-coded
segments. See the section below, “Sensor Graph Color Coding” for details. The level indicator appears across the

graph to indicate the relative position of the current data value with respect to the minimum (low limit) and maximum
(high limit) values displayed at the left and right of the graph.

Switched PDU
Installation and Operations Manual Operations  25

High Limit: Displays the high limit of the load, temperature, or humidity graph. These values depend on the sensor
limits are cannot be set by the user. For example, a 100ºC high limit would be displayed as for a temperature

sensor graph in Celsius.
Status: One of several operating conditions:

System Summary – Status Descriptions

Icon Status Description

Reading Unit is reading a new or restored sensor.
Normal Indicates normal operation.
Load High Infeed current load exceeds present High threshold.
Over Load Infeed current load exceeds the measurable range for the infeed.
Temp Low Current temperature falls below present Low threshold.
Temp High Current temperature exceeds present High threshold.
Humid Low Current percentage of relative humidity falls below present Low threshold.
Humid High Current percentage of relative humidity exceeds present High threshold.
Lost The connection was lost to a sensor that was previously detected and the sensor is pulled from the

original environment monitoring statistics. There is no data to report, the graph is meaningless, and
the threshold settings remain displayed but are grayed.

Sensor Graph Color-Coding

The following colors change dynamically on the sensor graphs to communicate operating conditions:

Line (Load) Status:

Green = Normal
Yellow = High load (load configured by user)
Red = Overload (based on device characteristics)
User configures load capacity at Configuration > SNMP/Thresholds > Input Feed Traps and Thresholds

Temperature Status:

Blue = cold; low temperature (threshold configured by user)
Green = acceptable temperature range
Red = hot; high temperature (threshold configured by user)
User configures low/high temperature thresholds at Configuration > SNMP/Thresholds > Sensor Traps and

Thresholds

Humidity Status:

Blue = wet; high humidity (threshold configured by user)
Green = acceptable percentage of relative humidity
Yellow = dry; low humidity (threshold configured by user)
User configures low/high relative humidity thresholds at Configuration > SNMP/Thresholds > Sensor Traps and

Thresholds

26  Operations Switched PDU

Installation and Operations Manual

Logical Group Separators

Logical groups are separated by a thin blue line on the System Summary page as shown in the following example
between Tower A_InfeedA and Tower B_InfeedA:

This grouping includes master/link units in addition to some branched units.
Up to three blue line dividers can be displayed on the System Summary page between all sensor groups.

Outlet Control

The Outlet Control section offers access to the Individual and Group outlet control pages. From the Individual and
Group pages, the user can review and manipulate power control functions for all outlets and groups assigned to the
current user. Both pages include the outlet’s absolute and descriptive names, the Outlet Status reported to the PDU by
the outlet, the current Control State being applied by the PDU, and the outlet load in amperes.

Available outlet and group power states can be set to on, off, or reboot.

Individual

The Individual outlet control page displays all outlets assigned to the current user. The user can apply on, off, or
reboot actions to individual, multiple, or all accessible outlets.

To apply actions to individual or multiple outlets:

In the Individual Outlet Control section, select the desired action from the Control Action drop-down menu for each
individual outlet to be changed, and click Apply.

To apply an action to all outlets:

In the Global Control section, select the desired action from the Control Action drop-down menu and click Apply.

Group

The Group outlet control page displays all groups assigned to the current user, as well as the outlets for each group.

To select a group:

Select the group name from the drop-down menu and click Select. The page will refresh to display all outlets
associated to the selected group name.

To apply an action to a group:

Select the desired action from the drop-down menu and click Apply.

Switched PDU
Installation and Operations Manual Operations  27

Outlet State/Control State Field Values

Outlet State Control State Description

On On Outlet is on
Off Off Outlet is off
Off Pend On Outlet is off and about to turn on in response to a sequence timer
Off Reboot Outlet is off and a Reboot action has been initiated
On Idle On A restart has occurred – Last Control State has been maintained
Off Idle Off A restart has occurred – Last Control State has been maintained
On Wake On A power-loss has occurred – Wakeup State has been applied
Off Wake Off A power-loss has occurred – Wakeup State has been applied
On/Wait Off Outlet state in transition – Re-query of outlet status required
Off/Wait On Outlet state in transition – Re-query of outlet status required
On/Error varies Error State – Outlet should be off, but current is sensed at the outlet
Off/Error varies Error State – Outlet should be on, but no current is sensed at the outlet
Off/Fuse On Outlet should be on, but a blown fuse has been detected
On/Fuse On Outlet should be on, but a blown fuse has been detected downstream
No Comm varies Communication to the outlet has been lost. Control state will be applied when communication

is re-established.

Power Monitoring

Input Feeds

The Input Feeds page displays:

 The absolute and descriptive names of the infeed
 Infeed status
 Input/branch phase load in amperes
 Input Voltage
 Calculated power usage in Watts.

Monitor pages (like the Input Feeds page) refresh occasionally to reflect current PDU status.

System

The System page displays:

 Calculated power usage for all infeeds in watts
 Configured total system area in square feet
 Calculated power usage in watts/square feet
 Tower monitoring – tower ID, tower name, and tower status

NOTE: For 3-phase systems, if the Out-of-Balance Alerting feature is enabled, and the system goes into a load out-of-balance condition,

the Tower Status field will display the alert “3ph Out-of-Balance”, unless there is a higher priority tower error state to report.

Monitor pages (like the System page) refresh occasionally to reflect current PDU status.

UPS

The UPS page displays the following information for each UPS device associated with the unit:

 Status
 Voltage
 Hostname/IP address

NOTE: The UPS page displays both IPv4 and IPv6 formats in the Hostname/IP field.

Monitor pages (like the UPS page) refresh occasionally to reflect current PDU status.

28  Operations Switched PDU
Installation and Operations Manual

Environmental Monitoring

Sensors

The Sensors page displays:

 Absolute and descriptive names of the temperature/humidity sensor
 Temperature/humidity sensor readings and percentage of relative humidity

Monitor pages (like the Sensors page) refresh occasionally to reflect current PDU status.

Temperature/Humidity Sensor Status

Status Description

Found The PDU found the sensor and connection is established.
Not Found On a fresh reboot, the PDU does not find a sensor.
Lost The connection to a previously found sensor is now lost.

No Comm Communication loss occurred due to a hardware issue (not loss of communication with the probes).1

1

= The ENV part of the sensor supports two Temperature/Humidity (T/H) probes as part of the master unit, two T/H
probes as part of the link unit, and the optional EMCU-1-1 (which can support two T/H probes, four contact-closure
monitoring points, and one water sensor). The “No Comm” sensor status is not loss of communication with probes
themselves.

Shutdown

The Shutdown section offers access to all Remote Shutdown configuration options. This section is available to
administrative level users only. For more information and the configuration requirements, see the “Remote
Shutdown” section.

Outlets

Enabling or disabling Remote Shutdown support:

Select or deselect outlets to enable/disable Remote Shutdown support for in the Shutdown/Delay field and click
Apply.

Setting the Remote Shutdown delay:

Enter the shutdown delay (in seconds) in the outlet Shutdown/Delay field and click Apply. Valid range is 1-900
seconds.

Editing the target server’s Hostname/IP address:

In the outlet Hostname/IP field, enter an IP address or Hostname and click Apply.

Enabling or disabling shutdown script support:

Select or deselect outlet to enable/disable shutdown script support for in the Script/Delay column and click Apply.

Setting the shutdown script delay:

Enter the shutdown delay (in minutes) in the outlet Script/Delay field and click Apply.

Configuration

The Configuration section offers access to all unit configuration options. This section is available to administrative
level users only.

System

The System configuration page is used for reference of system information such as Ethernet NIC Serial Number,
Ethernet MAC address and system firmware and hardware revisions as well as assignment and maintenance of other
system wide configurations.

For descriptive names, up to 24 alphanumeric and other typed characters (ASCII 33-126 decimal) are allowed; spaces
are not allowed.

NOTE: Spaces can be used for the location description only.

Switched PDU
Installation and Operations Manual Operations  29

Creating a pre-login banner:

Click the Login Banner link. On the subsequent Login Banner page, type pre-login banner text and click Apply.

NOTES:

 The pre-login banner can be up to 2069 characters in length and is displayed prior to the login prompt. If left blank, a system banner will
not be displayed prior to the login prompt.

 For an SSH connection, the banner length is truncated to 1500 bytes in SSH packets to avoid failure of the SSH connection when
configured with a long login banner.

The Login Banner displays the following Characters Remaining box to show you in real-time as you type how many of
the 2069 maximum characters are still available for you to complete your banner. The box adjusts dynamically as you
type or delete characters.

If you reach the maximum 2069 characters, the box displays “-1”. To clear your entry and start over, click Cancel.

Creating a descriptive system location name:

Enter a descriptive name and click Apply.

Configuring the Input Current LED display orientation:

Select Normal or Inverted from the drop-down menu and click Apply.

Configuring the LED display orientation:

From the Display Orientation drop-down list, select Normal or Inverted, and click Apply.

NOTES:

 Only specific PDU models are equipped with an accelerometer chip that senses device orientation. If equipped, your PDU automatically
aligns the LED display orientation (depending on its current direction), and the option “Auto” displays in the Display Orientation
drop-down list by default. In addition, the actual mounting of the unit, such as “<Normal> or <Inverted>”, appears to the right of
the "Auto" option. However, even if your model does have the sensor for device orientation, you can still select the Normal or
Inverted option from the list to override the capability of the hardware.

 If your model does not have the accelerometer chip, you will need to configure the LED display orientation by selecting Normal or
Inverted.

Setting the outlet sequence order:

The PDU lets you configure the power-on sequence of outlets.
The Normal option powers-on outlets in ascending numeric order by outlet number, for example, from outlet 1-8. The

Reversed option powers on outlets in descending order by outlet number; for example, from outlet 8-1.
The Reversed option is useful when the PDU is mounted with inverted orientation and the last outlet (in this example,

outlet 8) is in the first position.
From the Outlet Sequence Order drop-down menu, select Normal or Reversed, and click Apply.

30  Operations Switched PDU
Installation and Operations Manual

Enabling or disabling strong password requirements:

The Switched PDU supports enforcement of strong passwords for enhanced security. When enabled, all new
passwords must be a minimum of 8 characters in length with at least one uppercase letter, one lowercase letter, one
number and one special character.

Acceptable strong passwords:

n0tOnmyw@tch

john2STI?

H3reUgo!

NOTE: Strong password requirements also enforce a minimum change of four character positions when defining new strong passwords.

Select Enabled or Disabled from the Strong Passwords drop-down menu and click Apply.

NOTE: The strong password requirement is applied against all new passwords.

Enabling or disabling the configuration reset button:

Select Enabled or Disabled from the Configuration Reset Button drop-down menu and click Apply.

Setting the temperature scale:

Select Celsius or Fahrenheit from the Temperature Scale drop-down menu and click Apply.

Setting the system area (footprint):

Enter a system area value in the Area (Footprint) field and click Apply.

Setting the system area unit of measure:

Select Square Feet or Square Meters from the Area (Footprint) drop-down menu and click Apply.

Setting the power factor:

The Power Factor value calculates the power usage displayed in the Power Monitoring pages.
Type a numeric value in the Power Factor field (from 0.50 to 1.00) and click Apply.

Setting the 3-phase load out-of-balance threshold:

The threshold (percentage) specified determines when the current on the lines of a 3-phase system are out-of-balance
between the three phases of power. If the alerting feature is enabled, an alert will be sent when an out-of-balance condition
occurs.

In the 3-Phase Load Out-of-Balance Threshold field, type a value from 0 to 100%, and click Apply.

Setting the 3-phase load out-of-balance alerting:

This setting enables/disables the sending of an alert when the current on the lines of a 3-phase system are past a pre-set
threshold (percentage) and are out-of-balance between the three phases of power.

From the 3-Phase Load Out-of-Balance Alerting drop-down menu, select Enabled or Disabled, and click Apply.

NOTES:

 When a device with 3-phase input voltage is out-of-balance, efficiency is reduced and the unit is prevented from reaching maximum
capacity. When an alert for the out-of-balance condition is received (if the alerting feature is enabled), it may be necessary to adjust
distribution of the loads.

 For 3-phase systems, if the Out-of-Balance Alerting feature is enabled, and the system goes into a load out-of-balance condition, the
Tower Status field on the “Power Monitoring – System” web page will display the alert “3ph Out-of-Balance”, unless there is a higher
priority tower error state to report.

Configuring the Command Line Interface (CLI) session timeout:

Enter a timeout period (in minutes) in the CLI Session Timeout field, and click Apply.
The valid timeout range is 1 to 1440 minutes (24 hours); the default is 5 minutes.