Data Domain DD580 User guide

Data Domain, Inc.
2421 Mission College Boulevard, Santa Clara, CA 95054
866-WE-DDUPE; 408-980-4800
770-0005-0006 Rev. B
September 14, 2009
System Hardware Guide

2
Copyright © 2005 - 2009 Data Domain, Inc. All rights reserved.
Data Domain, the Data Domain logo, and Global Compression are trademarks
or registered trademarks of Data Domain, Inc. All other trademarks used or
mentioned herein belong to their respective owners.
Data Domain products are protected by one or more of the following patents
issued to Data Domain. U.S. Patents 6,928,526; 7,007,141; 7,065,619; 7,143,251;
7,305,532; 7,373,464; 7,424,498; 7,434,015 and other patents and patents
pending in USA and other countries.
Disclaimer: The information contained in this publication is subject to change
without notice. Data Domain, Inc. makes no warranty of any kind with regard
to this manual, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. Data Domain, Inc. shall
not be liable for errors contained herein or for incidental or consequential
damages in connection with the furnishing, performance, or use of this
manual.

Contents 3
Contents
About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Guide Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Access to Documents at Data Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Data Domain Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Data Domain System Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 2: Preparing for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
NVRAM Battery Charging Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Battery Charge Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Battery Recharging Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power and Weight Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Site Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Rail Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
External Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Chapter 3: PCI Cards for Data Domain Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
NIC Card Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4System Hardware Guide
Chapter 4: Data Domain Gateway Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Hardware Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Supported Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Controllers and Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
External Disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Replication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Fibre Channel Host Bus Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Gateway System Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Troubleshooting Installation Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Recover from External Storage Array Controller Failure . . . . . . . . . . . . . . . . . . . . . . . . . 35
Disconnecting the Fibre Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Chapter 5: DD120 Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Supply Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
DHCP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Chapter 6: DD580, DD565, DD530, and DD510 Systems . . . . . . . . . . . . . . . . . . . . . 45
Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Hardware Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
System Card Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Contents 5
DHCP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Chapter 7: DD560, DD460, DD430, and DD410 Systems . . . . . . . . . . . . . . . . . . . . . . 61
Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Hardware Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
System Card Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
DHCP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

6System Hardware Guide

7
About This Guide
This guide describes the specifications and components of your Data Domain system. It provides
instructions for installing, monitoring, and troubleshooting your system.
Guide Overview
This guide covers the Data Domain system models listed below and contains the following.
Chapter 1, Introduction
Chapter 2, Preparing for Installation
Chapter 3, PCI Cards for Data Domain Systems
Chapter 4, Data Domain Gateway Systems
Chapter 5, DD120 Systems
Chapter 6, DD580, DD565, DD530, and DD510 Systems
Chapter 7, DD560, DD460, DD430, and DD410 Systems
Note For information about more recent Data Domain system models, refer to the model-specific
Installation and Setup Guide and Hardware Overview documents. Visit
https://my.datadomain.com to see the latest documentation.

Related Documents
8System Hardware Guide
Related Documents
The following Data Domain system documentation provides additional information:
•DD OS Release Notes Version 4.7
•DD OS 4.7 Initial Configuration Guide
•DD OS 4.7 Administration Guide
•DD OS 4.7 Command Reference
•DD OS 4.7 Command Reference Guide
•Data Domain OpenStorage (OST) Administration Guide
•Data Domain System Safety and Regulatory Information
Access to Documents at Data Domain
The Documentation page at https://my.datadomain.com/documentation provides access to three
categories of documents that are related to use of Data Domain products:
•End-user documents, under Product Documentation.
•Guides for how to integrate Data Domain systems with backup applications, arrays, and other
applications, under Integration Documentation.
•Matrices that show which components are compatible with each other, under Compatibility
Matrices:
-Data Domain hardware product numbers
-Data Domain operating system (DDOS) versions
-Backup applications and other application versions
-Application server and client operating system versions
-Hardware driver versions
To access Data Domain documents:
1. Log into the support portal at: https://my.datadomain.com/documentation.
2. To view end user documents, click Product Documentation and then perform the following
steps:
a. Select the Data Domain model from the Platform list and click View.
b. On the row for the correct Data Domain operating system (DD OS) version, click View
under Documentation.

9
Conventions
c. Click the desired title.
3. To view integration-related documents, perform the following steps:
a. Click Integration Documentation.
b. Select a vendor from the Vendor menu.
c. Select the desired title from the list and click View.
4. To view compatibility matrices, perform the following steps.
a. Click Compatibility Matrices.
b. Select the desired title from product menu and click View.
Conventions
The following tables describe the typographical conventions used in this guide.The following table
describes the typographical conventions used in this guide.
Typeface or
Symbol
Usage Examples
Monospace Commands, command
options, and parameters
and computer output.
Use the config command to
manage the Data Domain
system configuration
settings.
Monospace
bold
Commands the user types at
the command prompt (#).
Enter:
# config setup
Monospace
italic bold
Command variables the user
types at the command prompt
(#).
# log view file_name
Italic Book titles, and variables. Refer to the DD OS 4.7
Command Reference Guide for
complete descriptions of DD
OS commands.
Pipe (|) and
curly braces
({})
Choose (pipe) between a
required argument (curly
braces) in the CLI.
{arg1 | arg2}

Audience
10 System Hardware Guide
Audience
This guide is for system administrators who are familiar with standard backup software packages
and with general backup administration.
Data Domain Support
To resolve issues with Data Domain products, contact your contracted support provider or visit us
online at https://my.datadomain.com.
Brackets ([])
and ellipses
(...)
One or more (list with
commas and elipses)
optional (bracket)
arguments in the CLI.
[arg1, arg2, ...]
Typeface or
Symbol
Usage Examples

11
Introduction 1
The main differences between Data Domain systems are the throughput and the amount of data
storage capacity. Data Domain Gateway systems store data on external disk arrays through a Fibre
Channel connection.
Data Domain System Types
Data Domain systems have model numbers. The gateway version of a Data Domain system has the
same model number as the non-gateway version, but with the suffix g.
Data Domain Systems belong to one of the following sets. Every model in each set uses the same
motherboard and chassis. Installation, interface locations, and PCI slots are different for each set.
•DD120
•DD580, DD580g, DD565, DD530, DD510
•DD560, DD560g, DD460, DD460g, DD430, DD410
Note For information about more recent Data Domain system models, refer to the model-specific
Installation and Setup Guide and Hardware Overview documents. Visit
https://my.datadomain.com to see the latest documentation.
For information about the Data Domain ES20 expansion shelf, see the separate document, Data
Domain Expansion Shelf Hardware Guide.
Table 1 on page 12 lists the capacities of the Data Domain systems. Data Domain system internal
indexes and other product components use variable amounts of storage, depending on the type of
data and the sizes of files. If you send different data sets to otherwise identical systems, one system
may, over time, have room for more or less actual backup data than another.
Note Data Domain system commands compute and display amounts of disk space or data as
decimal multiples of certain powers of two (210, 220, 230, and so forth). For example, 7 GiB
of disk space = 7 x 230 bytes = 7 x 1,073,741,824 bytes. Data Domain refers to this process
as base 2 calculation.

Data Domain System Types
12 System Hardware Guide
Note Illustrations of Data Domain system front panels in this document do not include the
protective bezel.
Table 1: Data Domain System capacities
System Internal disks CPU Raw storage
(Base 10
calculation)
Data storage space
(Base 2
calculation)
Data storage
space (Base 10
calculation)
External
storage
DD580* 15 500GB
SATA HDDs
2 Dual-Core
3.0 GHz Xeons
7.5 TB 4.9 TiB + 4.9TiB
per ES20-8TB
5.4 TB + 5.4 TB
per ES20-8TB
3 ES20-8TB
DD565* 15 500GB
SATA HDDs
2 Dual-Core
2.0 GHz Xeons
7.5 TB 4.9 TiB + 4.9TiB
per ES20-8TB
5.4 TB + 5.4 TB
per ES20-8TB
2 ES20-8TB
DD560* 15 500GB
SATA HDDs
2 3.6 GHz
Xeons
7.5 TB 4.9 TiB + 4.9TiB
per ES20-8TB
5.4 TB + 5.4 TB
per ES20-8TB
2 ES20-8TB
DD460* 15 400GB
SATA HDDs
2 3.2 GHz
Xeons
6.0 TB 3.9 TiB 4.3 TB N/A
DD530 9 500GB
SATA HDDs/
15 500GB
SATA HDDs
1 Dual-Core
2.0 GHz Xeon
4.5 TB/
7.5 TiB
2.5 TiB/ 4.1 TiB
5.17 TiB**
2.75 TB/ 4.51 TB
5.69 TB**
N/A
DD430 8 400GB
SATA HDDs
1 3.2 GHz
Xeon
3.2 TB 1.9 TiB 2.1 TB N/A
DD510 9 250GB
SATA HDDs/
15 250GB
SATA HDDs
1 Dual-Core
1.6 GHz Xeon
2.25 TB/
3.75 TiB
1.15 TiB/ 1.91 TiB/
2.48 TiB**
1.27 TB/ 2.11 TB/
2.73 TB**
N/A
DD410 8 160GB
SATA HDDs
1 3.0 GHz
Xeon
1.28 TB 0.7 TiB 0.8 TB N/A
DD120 3 250 GB
SATA HDDs
1 Dual-Core
1.6 GHz Xeon
750 GB 348.2 GiB 373.87 GB N/A
Gateways
DD580g* N/A 2 Dual-Core
3.0 GHz Xeons
22.8 TB 19.62 TiB 21.57 TB 3rd party
DD560g* N/A 2 3.6 GHz
Xeons
17.3 TB 14.9 TiB 16.37 TB 3rd party

Introduction 13
Data Domain System Types
* Marked platforms are available as controllers in the DDX array.
** The first value is for a base system; the second value is for a field-expanded system with two
RAID groups; the third value is for a factory-expanded system with one RAID group.
DD460g* N/A 2 3.2 GHz
Xeons
N/A 4.2 TiB 4.6 TB 3rd party
Table 1: Data Domain System capacities (continued)
System Internal disks CPU Raw storage
(Base 10
calculation)
Data storage space
(Base 2
calculation)
Data storage
space (Base 10
calculation)
External
storage

Data Domain System Types
14 System Hardware Guide

15
Preparing for Installation 2
The site requirements for installing Data Domain systems differ according to model.
Note If the NVRAM card in your Data Domain system has fully charged batteries, the system
starts up normally. In most systems, however, the batteries need to be charged to ensure they
are either at or near maximum capacity.
This chapter contains the following sections:
•NVRAM Battery Charging Instructions
•Power and Weight Specifications
•Environmental Specifications
•Site Requirements
•Rail Options
•Power Considerations
•External Connectivity

NVRAM Battery Charging Instructions
16 System Hardware Guide
NVRAM Battery Charging Instructions
If the NVRAM card in your Data Domain system has fully charged batteries, the system starts up
normally. In most systems, however, the batteries need to be charged to ensure they are either at or
near maximum capacity.
If the batteries are partially discharged when you power up the system, an error light at the back of
the NVRAM card begins blinking, and an error message similar to the following appears on the
console:
NVRAM0: Size 5224288 KB, Battery 1 Enabled (FAILURE), Battery 2
Enabled (FAILURE)
Although the batteries begin to recharge after the system is powered on, it can take up to three
hours before they are fully charged. The system cannot be used before all of the batteries are fully
charged. Plan ahead when you schedule your installation.
Battery Charge Verification
Note Depending on the system, a NVRAM card has either two or three batteries. Some systems
contain two NVRAM cards.
Follow these instructions if your system starts up normally:
1. Enter the command system show nvram to check that each battery is enabled and
charged. The output is similar to the following:
NVRAM Card:
component value
------------------- ---------------------
memory size 1024 MB
window size 16 MB
number of batteries 2
errors 0 PCI, 0 memory
battery 1 99% charged, enabled
battery 2 99% charged, enabled
2. If an error light at the back of the NVRAM card begins blinking, or the system does not start
up, see the next section, “Battery Recharging Procedure”.”

Preparing for Installation 17
NVRAM Battery Charging Instructions
Note If a battery shows 0% charge, the displayed charge percentage is not updated until the
battery is charged to 75% or more.
Battery Recharging Procedure
To recharge the NVRAM card batteries:
1. Reboot the system by using the command system reboot.
2. Press the F2 key (Del key on DD4xx and DD560 systems) when the diagnostic message
“Press <F2> to enter setup” or “Press <Del> to enter setup” appears, or
when an Intel or Data Domain logo splash screen appears.
3. Leave the system at the prompt for a minimum of three hours.
4. After at least three hours, reboot the system by pressing the Ctrl, Alt, and Delete keys
simultaneously.
5. Check the battery status by entering the system show nvram command. If any battery is
still not charged, the NVRAM card is defective and must be replaced.
6. Reboot the system by simultaneously pressing the Ctrl, Alt, and Delete keys.

Power and Weight Specifications
18 System Hardware Guide
Power and Weight Specifications
The following table summarizes the power and weight requirements for the Data Domain systems:
Table 2: Power and Weight Specifications
Model VA BTU/hr Amps
@ 115V
Amps
@ 230V
Weight
lb - kg
DD580 690 2346 6.0 3.0 78 - 35
DD565 644 2213 5.6 2.8 78 - 35
DD560 520 1776 4.5 2.3 80 - 36
DD530
base/expanded
403/483 1393/1663 3.5/4.2 1.8/2.1 68 - 31 / 78 - 35
DD510
base/expanded
403/483 1393/1663 3.5/4.2 1.8/2.1 68 - 31 / 78 - 35
DD120 353 876 2.2 1.1 23 - 11
DD460 460 1571 4.0 2.0 80 - 36
DD430 400 1366 3.5 1.7 66 - 30
DD410 400 1366 3.5 1.7 66 - 30
DD580g 431 1472 3.7 1.9 52 - 24
DD560g 276 956 2.4 1.2 52 - 24
DD460g 276 956 2.4 1.2 54 - 25

Preparing for Installation 19
Environmental Specifications
Environmental Specifications
The following table summarizes the environmental specifications for the Data Domain systems:
Table 3: Environmental Specifications
Specifications All Platforms except DD120 DD120
Operating Temperature 5° to 35° C (41° to 95° F) 10° to 35° C (41° to 95° F)
Operating Humidity 20% to 80%, non-condensing 20% to 80%, non-condensing
Non-operating Temperature -40° C to +65° C (-40° F to +149° F) -40° C to +65° C (-40° F to +149° F)
Operating Acoustic Noise Max 7.5 BA, at rear of unit when all
drives seek simultaneously
Max 7.0 BA, at rear of unit when all
drives seek simultaneously

Site Requirements
20 System Hardware Guide
Site Requirements
The following table summarizes the site requirements for installing Data Domain systems:
Table 4: Site requirements
Requirement DD120 DD5xx, DD5xxg, DD4xx, DD4xxg
Vertical space in
standard 19”, four
post rack
U = 1.75"
1U 3U
Do not use a two-post rack. See the slide rail and installation documentation in the
packaging for installing in a rack.
If a Data Domain system is installed in a rack with limited space above the Data
Domain system, use cables that are long enough to allow sliding the Data Domain
system out on the slide rails for servicing.
Dimensions WxDxH
in (cm)
19 x 27.25 x 1.75
(48.3) x (69.2) x (4.3)
19 x 27 x 5.2
(48.3) x (66.6) x (13.2)
Air Conditioning Air conditioning that can cope with the maximum BTU/hr thermal rating
specified in , “Power and Weight Specifications.”
Temperature Controls Adequate temperature control with a
gradient (change) not to exceed 50° F
(10° C) in an hour.
Adequate temperature control with a
gradient (change) not to exceed 86° F
(30° C) in an hour.
Ventilation & Airflow In a closed or multi-unit rack, ensure that the unit has adequate airflow through
front bezel and back panel and that the ambient air temperature requirements are
met. Ensure that the front bezel and back panel clearances are met. Back pressure
by rack doors and obstacles not to exceed 5 pascals (0.5 mm. water gauge
pressure or 0.9997 psi).
Front Bezel Clearance 1.54 inches (4 cm) of unobstructed clearance (Bezel on)
Back Panel Clearance Five inches (12.7 cm) of unobstructed clearance
Power / Grounding One single phase AC power outlet with
an earth ground conductor (safety
ground) rated no more that 20 amps.
A safe electrical earth connection must
be provided to the power cord.
Voltage 100-120 VAC;
Frequency: 50 to 60 Hz.
Three AC power outlets with an earth
ground conductor (safety ground) rated
no more that 20 amps.
A safe electrical earth connection must
be provided to each power cord.
Voltage 100-120 VAC or 200-240 VAC;
Frequency: 50 to 60 Hz.