Cisco RP Series User manual

Cisco R42612 Rack and RP-Series Metered Input PDU Installation Guide
First Published: 2016-12-22
Last Modified: 2019-12-13
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CHAPTER 1
Overview
This chapter contains the following sections:
•Cisco R-Series Racks, on page 1
•Cisco RP-Series Power Distribution Units, on page 3
Cisco R-Series Racks
The Cisco R42612 R-Series rack is a 19-inch, 42U, industry standard EIA-310-D rack that is optimized for
the integrated Cisco Unified Computing System (UCS). It supports all Cisco UCS blade, rack, and storage
servers. Three versions of the rack are available for single-rack or multiple-rack UCS deployments:
• RACK2-UCS is the expansion rack that has no side panels
• RACK2-UCS2 is the standard rack that has side panels
• RACK2-UCS2-INT is the dynamic rack that has side panels
The design of the rack delivers power, cooling, and cable management features along with the strength and
stability required in today's rack enclosures. In addition, the Cisco R42612 rack provides the highest level of
reliability, structural integrity, and security for mission-critical environments.
Features of the Cisco R42612 rack include the following:
• Front and rear doors are perforated to maximize air flow. Locks are included for added security. The
doors also feature tool-less removal for convenient servicing. Split rear doors minimize the clearance
required at the rear of the rack, and the adjustable front door can swing from right to left or from left to
right.
• Lightweight, two-piece side panels are easy to install and remove, and locks provide extra security.
• The ventilated top canopy has cable access cutouts and a large cable access opening with a brush insert
that ensures proper airflow.
• Integrated PDU trays enable tool-less mounting for the zero-RU Cisco RP-Series PDUs.
• Front and back stabilizer brackets are included with the racks.
• A joining kit is available to connect adjacent expansion racks within a row.
• Casters permit mobility if needed.
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• RU markings on all rack rails simplify equipment installation.
The following figures show the front and back of the standard Cisco R42612 R-Series rack.
Figure 1: Front of the Cisco R42612 Rack
Front view of the standard Cisco R42612 R-Series Rack1
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Overview
Cisco R-Series Racks

Figure 2: Back of the Cisco R42612 Rack
Rear view of the standard Cisco R42612 R-Series Rack1
Cisco RP-Series Power Distribution Units
Cisco RP-Series Power Distribution Units (PDUs) offer flexible, reliable, easy-to-deploy power distribution
with branch circuit protection. The PDUs come in various form factors, both 1RU and 0RU, and include
metered and monitored models, and single-phase and three-phase models.
Cisco RP-Series 0RU PDU models are simple to install using pre-installed tool-less mounting screws that fit
into key holes in the PDU trays. The flush profile of the 0RU PDUs also improves serviceability of the
equipment installed in the rack.
The 0RU PDUs have color-coded outlet sections that match a corresponding circuit breaker, making it easy
to identify which circuit breaker feeds which outlet. The branch circuit color coding also simplifies load
balancing.
Outlet grip retention ensures that plugs stay securely in place and prevents disconnection due to bumps or
vibrations.
For detailed information about all supported Cisco RP-Series PDUs, see PDU Specifications, on page 50.
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Overview
Cisco RP-Series Power Distribution Units

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Overview
Cisco RP-Series Power Distribution Units

CHAPTER 2
Site Preparation
This chapter contains the following sections:
•General Site Requirements and Recommendations, on page 5
•Required Tools, on page 6
•Prepare the Subflooring (Optional), on page 6
•Space and Clearances, on page 7
•Environment Required, on page 12
•Grounding, on page 13
•Power Source, on page 13
•Power Requirements, on page 13
•Site Preparation Checklist, on page 14
General Site Requirements and Recommendations
When planning your installation of the Cisco R42612 rack, consider the following:
• The unpacking and installation process requires three logistical steps:
• Unloading the unit from the vehicle in which it is shipped
• Using a forklift or similar device to move the unit to an unpacking site
• Moving the unpacked unit to the installation site
• Select an unpacking location with adequate surrounding space for the unloading process. You must allow
for the pallet.
•Choose an installation site that can accommodate the Cisco R42612 rack. To provide for future installation
of a joined configuration, you should plan enough space for additional cabinets that occupy the same
amount of space as the initial cabinet.
• Make sure you have enough people to help you safely unload and install the system. A fully-loaded
cabinet can weigh over 3000 lb (1360.8 kg) and moving it can present dangers to both personnel and the
incorporate equipment.
• Plan a smooth and unobstructed route from the off-loading site to the installation site. You should only
move the rack when it is empty of all equipment.
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• Imperfections or obstructions in the floor between the unloading and installation site might hamper the
movement of the unit. If you encounter an obstacle such as a sill or carpet, exercise care in navigating
over it.
• Verify that you have adequate standard tools on hand.
• Ensure that your site contains an adequate power infrastructure.
Required Tools
You may need the following tools and equipment to install the Cisco R-Series Rack:
• ESD-preventive wrist straps for each person
• Phillips head screwdriver (#2)
• 4 mm Hex driver
• Pozidriv screwdriver
• 3/8" or 1/2" flat-head screwdriver (to lower and raise stabilizers)
• Adjustable wrench (for unbolting system)
• Allen wrench (to disassemble caster assembly after the unit is sited)
• Standard clippers or knife (to cut packaging binding)
• Tape measure
• Level
• Anchoring bolts
• Rotary hammer drill
• Fork lift
• Chain hoist
• Documentation for the devices that you plan to install in the rack
Prepare the Subflooring (Optional)
To prepare your site for installation of the Cisco R42612 rack, you may need to reinforce the floor to support
the rack when fully loaded with equipment. The following figure shows the reinforcement needed for secure
anchoring of the rack.
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Site Preparation
Required Tools

Figure 3: Anchoring Pattern for the Cisco R42612 Rack
It is your responsibility to fulfill local seismic safety standards.
Note
Space and Clearances
The following figure shows the dimensions and space requirements for the Cisco R42612 rack.
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Site Preparation
Space and Clearances

Figure 4: Space and Clearance Dimensions
Plan for at least 3 feet of clearance in front of the Cisco R42612 rack to install servers or networking equipment.
Refer to the documentation for the equipment you plan to use to find out how much clearance is needed at
the rear for ventilation or other uses.
Planning Considerations
When planning your rack installation, consider the following guidelines:
• Make sure that the system has adequate ventilation.
• Always install the heaviest equipment as low as possible in the Cisco R4612 rack to maintain a low
center of gravity and prevent the Cisco R42612 rack from falling over.
• Use the cable management brackets and straps that are orderable for use with this system to keep cables
organized and out of the way of the exhaust fans.
• Make sure that cables do not impair access to other devices or require you to disconnect cables
unnecessarily to perform equipment maintenance or upgrades.
• To prevent device overheating, never install networking devices in a room that is not properly ventilated
or air conditioned.
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Planning Considerations

Safety Recommendations
The following guidelines are intended to help ensure your safety and protect the equipment. This list does not
cover all potentially hazardous situations, so be alert.
• Review the safety warnings listed in Regulatory Compliance and Safety Information document before
installing, configuring, troubleshooting, or maintaining the Cisco R42612 rack.
• Keep the area clear and dust free during and after the installation.
• Keep tools and components away from areas where people might accidentally step on them or kick them.
• Do not wear loose clothing, jewelry, or other items that might become trapped in the chassis during the
installation.
• As a safety feature, the Cisco PDUs ship with locking 3-wire electrical grounding-type plugs that only
fit into grounding-type power outlets. The equipment grounding should be in accordance with national
and local electrical codes.
• Be sure to use the installed products in accordance with their marked electrical ratings and product usage
instructions to guarantee safe operation.
Moving the Unit Safely
Before you install the system, make sure that your site is properly prepared so that you can avoid having to
move the Cisco R42612 rack later. Specifically, choose your installation site to accommodate existing power
sources and network connections.
Note
Whenever you move the Cisco R42612 rack or any heavy object, follow these guidelines:
• Always disconnect all external cables before moving the Cisco R-Series rack.
• Do not attempt to move the unit by yourself.
• Never attempt to lift an object that might be too heavy for one person to lift alone. If you are not sure
how much a particular object or device weights, refer to the appropriate device specifications.
• Ensure that your footing is solid, and balance the weight of the object between your feet.
• Move the system slowly; never move suddenly or twist your body as you push.
• Keep your back straight and push with your legs, not your back. If you must bend down to move the
Cisco R42612 rack, bend at the knees and not at the waist to reduce the strain on your lower back muscles.
• Move the rack from the middle. Grasp the middle of the Cisco R-Series Rack exterior with both hands.
Safety with Electricity
Most networking and data center devices are designed to be removed and replaced without presenting an
electrical hazard or damage. In situations where you must completely remove power to a component, always
remove the plug on the component side first, and then unplug all components connected to a PDU before
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Safety Recommendations

unplugging a PDU. Refer to the documentation for individual components for complete information about
removing power from a component.
Follow these guidelines when working with any electrical equipment:
• Install the Cisco R42612 rack in compliance with national and local electrical codes. In the United States,
the relevant code is National Fire Protection Association (NFPA) 70, United States National Electrical
Code. In Canada, the relevant code is Canadian Electrical Code, part I, CC22.1. In other countries, you
should observe the standards of the International Electrotechnical Commission (IEC) 364, part 1 through
part 7.
• Remove all jewelry (including rings, necklaces, and watches) before working on equipment that is
connected to power lines. Metal objects will heat up when connected to power and ground and can cause
serious burns or weld the metal object to the terminals.
• Locate the emergency power-off breaker switch for the room where you are working before starting any
procedures that require access to the interior of the rack.
• Disconnect all power and external cables before installing or removing a PDU or Cisco R42612 rack.
• Do not work alone when potentially hazardous conditions exist.
• Never assume that power has been disconnected from a circuit; always check.
• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
• Never install equipment that appears damaged.
•Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension
cables, and missing safety grounds.
In addition, use the following guidelines when working with any equipment that is disconnected from a power
source, but still connected to network cabling.
• Never install network wiring during a lightning storm.
• Never install network jacks in a wet location unless the jack is specifically designed for wet locations.
• Never touch non-insulated wires or terminals unless the line has been disconnected at the network
interface.
• Use caution when installing or modifying lines.
• Read the installation instructions before you connect the system to its power source.
Connect the device to a grounded power outlet.
Warning
For Nordic countries (Norway, Finland, Sweden and Denmark) this system must be installed in a Restricted
Access Location, where the voltage of the main ground connection of all equipment is the same (equipotential
earth) and the system is connected to a grounded electrical outlet.
Warning
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Safety with Electricity

Read the installation instructions before using, installing or connecting the system to the power source.
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. To reduce risk of
electric shock or fire, ensure that the protective device is rated not greater than:
Warning
This equipment must be grounded. To reduce the risk of electric shock, never defeat the ground conductor or
operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical
inspection authority or an electrician if you are uncertain that suitable grounding is available.
Warning
Preventing Electrostatic Discharge Damage
Electronic components are sensitive to Electrostatic discharge (ESD). ESD precautions should always be
taken when handling electronic components. ESD damage occurs when electronic cards or components are
improperly handled and can result in complete or intermittent system failures. Use an antistatic strap whenever
handling electronic components. Touch the carriers edges only; never touch the boards or connector pins.
Always tighten the captive installation screws when present. These screws prevent accidental removal, provide
proper grounding for the system, and help ensure the bus connectors are properly seated.
Note
Follow these guidelines to prevent ESD damage:
• Always use an ESD wrist strap or ankle strap and ensure that it makes good skin contact.
• When handling a removed component, make sure the equipment end of you ESD wrist strap is attached
to an unfinished chassis surface of the device in which it is housed. Do not touch the printed circuit board,
and avoid contact between the printed circuit board and your clothing.
• Always place the component side up on an antistatic surface or in a static shielding bag. If you are
returning the item to the factory, immediately place it in a static shielding bag.
• Ensure that any plugin device are fully inserted and their captive installation screws are tightened. The
captive installation screws prevent accidental removal and provide proper grounding for the system.
For safety purposes, periodically check the resistance value of the antistatic strap. The measurement should
be between 1 and 10 megaohms (Mohms).
Note
Plant Wiring
When setting up the plant wiring and cabling at the site of the new system, consider the distance limitation
imposed by power cable lengths and connector compatibility.
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Site Preparation
Preventing Electrostatic Discharge Damage

Environment Required
The Cisco R42612 rack and PDUs are operable beyond the specifications of the servers or networking
equipment you are likely to install in them. Refer to the user documentation of the devices you will install to
determine the required environment for these devices.
Environment specifications PDUs are in the following table.
Table 1: PDU Environmental Specifications
SpecificationItem
-40 to 60° CShipping or storage temperature
10 to 60° COperating temperature
5 to 95% (including condensing) with no droplets of
liquid
Shipping or storage relative humidity
5 to 90% (including condensing)Operating relative humidity
0 to 50,000 feet (0 to 15,240 meters)Shipping or storage elevation
0 to 10,000 feet (0 to 3048 meters)Operating elevation
The unit does not produce significant soundAcoustics
Most compute and networking equipment is designed to operate within the conditions as specified by The
American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE).
ASHRAE has published a common set of guidelines for equipment manufacturers and data center designers
to standardize on the following issues relating to a data center site:
• Operating environments for classes of equipment
• Equipment placement for optimum reliability and airflow
• Tests of performance and the operational health of the data center
• Equipment installation evaluations
• Methodology for reporting power, cooling, and environmental specifications
These guidelines were developed by an industry consortium as part of the ASHRAE Technical Committee
9.9 and are presented in the 2004 report Thermal Guidelines for Data Processing Environment. These guidelines
were updated in 2008 by the ASHRAE Environmental Guidelines for Datacom Equipment.
For information about ASHRAE and the report, see the ASHRAE website (http://www.ashrae.org).
Dust and Particles
Exhaust fans cool power supplies and system fan trays cool equipment by drawing in air and exhausting air
out through various openings in the chassis. However, fans also ingest dust and other particles, causing
contaminant buildup in the equipment and increased internal chassis temperature. A clean operating environment
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Environment Required

can greatly reduce the negative effects of dust and other particles that act as insulators and interfere with the
mechanical components in the equipment.
Corrosion
The corrosion of equipment connectors is a gradual process that can eventually lead to intermittent failures
of electrical circuits. The oil from your fingers or prolonged exposure to high temperature or humidity can
corrode the gold-plated edge connectors and pin connectors on various components in the equipment. To
prevent corrosion, avoid touching contacts on modules and protect the equipment from extreme temperatures
and moist, salty environments.
Electromagnetic and Radio Frequency Interference
To reduce the possibility of EMI and RFI, follow these guidelines:
• Cover all open slots with a metal filler.
• Always use shielded cables with metal connector shells for attaching peripherals to the equipment.
To predict and prevent strong EMI, you might need to consult experts in radio frequency interference (RFI).
Note
Grounding
Electronic equipment is sensitive to variations in voltage supplied by the AC power source. Over voltage,
under voltage, and transients (or spikes) can erase data from the memory or cause components to fail. To
protect against these types of problems, you should always make sure that the racks that hold the servers or
networking devices are grounded. When the rack are grounded, the equipment installed in them is automatically
grounded. See the instructions for the products that you install in the rack for grounding steps. For additional
information, see Installing the Grounding Kit, on page 32.
Power Source
You should use dedicated power circuits (rather than sharing circuits with other heavy electrical equipment)
for each PDU you install in the Cisco R42612 rack. The circuits must be rated for 30 A or 32 A, 200 to 250
VAC. The receptacles for these circuits should be within 6 feet (1.8 m) of each PDU when it is installed in
the Cisco R42612 rack. Check the power at your site before installation and periodically after installation to
ensure that you are receiving clean power. Install a power conditioner if necessary.
Power Requirements
Refer to the documentation for the power requirements for the devices you plan to install in the Cisco R42612
rack.
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Corrosion

Site Preparation Checklist
Planning the location and layout of your equipment rack or wiring closet is essential for successful network
operation, ventilation, and accessibility. The following table lists the site planning that we recommend
completing before installing a Cisco R42612 rack or PDU.
Table 2: Site Planning Checklist
DateTimeVerified ByActivityTask No.
Space evaluation:
• Space and layout
• Floor covering
• Impact and vibration
• Lighting
• Maintenance access
1
Environmental evaluation:
• Ambient temperature
• Humidity
• Altitude
• Atmospheric
contamination
• Air flow
2
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Site Preparation Checklist

DateTimeVerified ByActivityTask No.
Power evaluation:
• Input power type
• Power receptacles (verify
that the power supply
installed in the chassis has
a dedicated AC source
circuit)
• Receptacle proximity to
the equipment
• Dedicated circuit for
power supply
• Dedicated (separate)
circuits for redundant
power supplies
• Uninterruptable power
supply (UPS) for power
supplies
3
Grounding evaluation:
• Circuit breaker size
• Ground
4
Cable and interface equipment
evaluation:
• Cable type
• Connector type
• Cable distance limitations
• Interface equipment
(transceivers)
5
Electromagnetic interference
(EMI) evaluation:
• Distance limitations for
signaling
• Site wiring
• Radio frequency
interference (RFI)
6
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Site Preparation Checklist

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Site Preparation
Site Preparation Checklist

CHAPTER 3
Unpacking the Rack
This chapter contains the following sections:
•Unpacking a Cisco R-Series Rack, on page 17
•Remove the Packaging, on page 17
•Accessories , on page 19
•Safety Guidelines, on page 20
•Removing the Cisco Cisco R42612 Rack from the Pallet, on page 21
Unpacking a Cisco R-Series Rack
This section describes how to unpack and prepare a Cisco R42612 rack to be moved to its installation site.
The Cisco R42612 rack ships on a wooden pallet with cardboard and plastic covering the rack.
You will probably need to perform this procedure in the loading dock area of the building. A fork lift or chain
hoist may be needed.
Note
Remove the Packaging
To remove the protective packaging from the Cisco R42612 rack, complete the following steps:
Procedure
Step 1 Remove the nylon straps that secure the cardboard sheathing.
Step 2 Remove the cardboard top piece.
Step 3 Remove the plastic latches that hold the cardboard sheathing together, as shown in the following figure.
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Figure 5: Removing the Straps, Cardboard Top, and Plastic Latches
Step 4 Remove the clear plastic that covers the rack and pallet.
Step 5 Remove the four cardboard corner frames and other packaging material that covers the Cisco R42612 rack.
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Unpacking the Rack
Remove the Packaging