Cisco Nexus 3000 series Manuale utente

Installing the Chassis

•Safety, on page 1

•Preparing to Install the Chassis, on page 4

•Unpacking and Inspecting the Chassis, on page 6

•Installing the Chassis in a Four-Post Rack, on page 7

•Grounding the Chassis, on page 12

•Starting the Switch, on page 14

Safety

Before you install, operate, or service the switch, see the Regulatory, Compliance, and Safety Information for

the Cisco Nexus 3000 and 9000 Series for important Safety Information.

Statement 1071—Warning Definition

IMPORTANT SAFETY INSTRUCTIONS

Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar

with standard practices for preventing accidents. Read the installation instructions before using, installing, or

connecting the system to the power source. Use the statement number provided at the end of each warning

statement to locate its translation in the translated safety warnings for this device.

SAVE THESE INSTRUCTIONS

Warning

Statement 1089—Instructed and Skilled Person Definitions

An instructed person is someone who has been instructed and trained by a skilled person and takes the necessary

precautions when working with equipment.

A skilled person or qualified personnel is someone who has training or experience in the equipment technology

and understands potential hazards when working with equipment.

Warning

Installing the Chassis

Statement 1004—Installation Instructions

Read the installation instructions before using, installing, or connecting the system to the power source.

Warning

Statement 1074—Comply with Local and National Electrical Codes

To reduce risk of electric shock or fire, installation of the equipment must comply with local and national

electrical codes.

Warning

Statement 407—Japanese Safety Instruction

You are strongly advised to read the safety instruction before using the product.

https://www.cisco.com/web/JP/techdoc/pldoc/pldoc.html

When installing the product, use the provided or designated connection cables/power cables/AC adapters.

Note

Statement 1017—Restricted Area

This unit is intended for installation in restricted access areas. Only skilled, instructed, or qualified personnel

can access a restricted access area.

Warning

Statement 1030—Equipment Installation

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Warning

Statement 1091—Installation by an Instructed Person

Only an instructed person or skilled person should be allowed to install, replace, or service this equipment.

See statement 1089 for the definition of an instructed or skilled person.

Warning

Statement 1005—Circuit Breaker

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: 20A for AC, 60A for DC

Warning

Installing the Chassis

Safety

Statement 1028—More Than One Power Supply

This unit might have more than one power supply connection. To reduce risk of electric shock, remove all

connections to de-energize the unit.

Warning

Statement 1003—DC Power Disconnection

To reduce risk of electric shock or personal injury, disconnect DC power before removing or replacing

components or performing upgrades.

Warning

Statement 1046—Installing or Replacing the Unit

To reduce risk of electric shock, when installing or replacing the unit, the ground connection must always be

made first and disconnected last.

Warning

Statement 1022—Disconnect Device

To reduce risk of electric shock and fire, a readily accessible two-poled disconnect device must be incorporated

in the fixed wiring.

Warning

Statement 1033—Safety Extra-Low Voltage (SELV)—IEC 60950/ES1–IEC 62368 DC Power Supply

To reduce risk of electric shock, connect the unit only to a DC power source that complies with the SELV

requirements in IEC 60950-based safety standards or ES1 requirements in IEC 62368-based safety standards.

Warning

Statement 1024—Ground Conductor

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

Installing the Chassis

Safety

Statement 1252—Equipment Grounding

This equipment must be grounded. To reduce the risk of electric shock, the power cord, plug, or combination

must be connected to a properly grounded electrode, outlet, or terminal.

Warning

Statement 1076—Clearance Around the Ventilation Openings

To prevent airflow restriction, allow clearance around the ventilation openings to be at least 30cm.

Warning

Statement 1032—Lifting the Chassis

To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles

on modules, such as power supplies, fans, or cards. These types of handles are not designed to support the

weight of the unit.

Warning

Statement 164—Lifting Requirement

2 people are required to lift the heavy parts of the product. To prevent injury, keep your back straight and lift

with your legs, not your back.

Warning

Statement 1006—Chassis Warning for Rack-Mounting and Servicing

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to

ensure that the system remains stable. The following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the

heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the

unit in the rack.

Warning

Statement 1047—Overheating Prevention

To reduce the risk of fire or bodily injury, do not operate the unit in an area that exceeds the maximum

recommended ambient temperature of: 40°C

Warning

Preparing to Install the Chassis

Before you can install the switch, you must verify the following:

Installing the Chassis

Preparing to Install the Chassis

• The installation site meets the following requirements as stated in Chapter 2:

• Environmental requirements for temperature, humidity, altitude, and air particulates.

• Cabinet or rack is installed and meets the requirements for the switch.

Jumper power cords are available for use in a cabinet.

Note

• The rack is positioned so that you can install the switch with its cold air intakes positioned in a cold

aisle.

If the fan and power supply modules are burgundy or red colored, you must install the chassis with

its port side in a cold aisle. If the modules are blue colored, you must be able install the chassis with

the fan modules in a cold aisle.

•Earth ground connection is close to the switch. You must be able to easily connect the switch directly

to an earth ground or indirectly through a grounded rack.

High leakage current. Earth connection essential before connecting to power

supply.

Caution

• Site power meets the switch requirements. If you are using n+n redundancy, you must have two

power sources within reach of the switch when it is installed in the cabinet or rack.

If available, you can use an uninterruptible power supply (UPS) to protect against power failures.

Avoid UPS types that use ferroresonant technology. These UPS types can become

unstable with systems such as the Cisco Nexus switches. These switches can have

substantial current draw fluctuations because of fluctuating data traffic patterns.

Caution

Ensure that circuits are sized according to local and national codes. For North America, the power

supply requires a 15-A or 20-A circuit.

To prevent loss of input power, ensure the total maximum loads on the circuits

supplying power to the switch are within the current ratings for the wiring and

breakers.

Caution

Statement 1076—Clearance Around the Ventilation Openings

To prevent airflow restriction, allow clearance around the ventilation openings

to be at least:

Warning

• There is adequate clearance around the rack to install the switch and to allow for unimpeded airflow.

• You have the following equipment in addition to the switch and the kits shipped with the switch:

Installing the Chassis

Preparing to Install the Chassis

• Eight customer-supplied 12-24 or 10-32 screws (required for attaching slider rails and mounting

bracket to the mounting rails)

• Number 1 and number 2 Phillips screwdrivers with torque capability

• 3/16-inch flat-blade screwdriver

• Tape measure and level

• ESD wrist strap or other grounding device (wrist strap can be found in the accessory kit)

• Antistatic surface large enough to place the switch

• Grounding cable (6 AWG recommended), sized according to local and national installation

requirements; the required length depends on the proximity of the switch to proper grounding

facilities

• Crimping tool large enough to accommodate the girth of the grounding lug

• Wire stripping tool

Unpacking and Inspecting the Chassis

When handling switch components, such as fan or power supply modules, wear a grounded ESD strap and

handle the modules by their carrier edges only. To ground the ESD strap, make sure that it is attached to an

earth ground, a grounded chassis, or a grounded rack.

Caution

Keep the shipping container in case the chassis requires shipping in the future.

Tip

The switch is thoroughly inspected before shipment. If any damage occurred during transportation or any

items are missing, contact your customer service representative immediately.

Note

To inspect the switch, follow these steps:

Step 1 Compare the shipment to the equipment list provided by your customer service representative and verify that you have

received all items.

Step 2 Check for damage and report any discrepancies or damage to your customer service representative. Have the following

information ready:

• Invoice number of shipper (see the packing slip)

• Model and serial number of the damaged unit

• Description of damage

Installing the Chassis

Unpacking and Inspecting the Chassis

• Effect of damage on the installation

• Photos of the damaged shipping containers and damaged product

Step 3 For dual direction airflow switches, check to be sure that all of the fan and power supply modules have the same airflow

direction.

• Port-side intake airflow direction indicated with burgundy coloring

• Port-side exhaust airflow direction indicated with blue coloring

Installing the Chassis in a Four-Post Rack

This section describes the installation of the Cisco Nexus 9408 platform switch, into a four-post rack, using

the N9K-C9400-RMK rack-mount kit.

Before moving or lifting the chassis, follow these guidelines:

• Ensure that there is adequate space around the switch for servicing and airflow.

• Never attempt to lift an object that is too heavy for you to lift by yourself.

• Ensure that you have solid footing. Distribute the weight of the switch is evenly between your feet.

• Lift the switch slowly, keeping your back straight. Lift with your legs, not with your back. Bend at the

knees, not at the waist.

Statement 1030—Equipment Installation

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Warning

Statement 1091—Installation by an Instructed Person

Only an instructed person or skilled person should be allowed to install, replace, or service this equipment.

See statement 1089 for the definition of an instructed or skilled person.

Warning

Statement 1032—Lifting the Chassis

To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles

on modules, such as power supplies, fans, or cards. These types of handles are not designed to support the

weight of the unit.

Warning

Installing the Chassis

Installing the Chassis in a Four-Post Rack

Statement 164—Lifting Requirement

people are required to lift the heavy parts of the product. To prevent injury, keep your back straight and lift

with your legs, not your back.

Warning

Statement 1006—Chassis Warning for Rack-Mounting and Servicing

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to

ensure that the system remains stable. The following guidelines are provided to ensure your safety:

• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the

heaviest component at the bottom of the rack.

• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the

unit in the rack.

Warning

Step 1 Attach two front-mount brackets to the sides of the chassis as follows:

a) Align the two holes in one side of a front-mount bracket to the holes on the left or right side of the chassis as shown

in the following figure.

Installing the Chassis

Installing the Chassis in a Four-Post Rack

Figure 1: Aligning and Attaching Front-Mount Brackets to the Chassis

M4 x 6-mm screws2Front rack-mount bracket1

b) Use M4 x 6 mm screws to attach the bracket to the chassis and tighten each screw to 12 in-lb (1.36 N·m) of torque.

c) Repeat Steps 1a and 1b to attach the other front-mount bracket to the other side of the chassis.

Step 2 Align the bottom-support rails so that they form a shelf for the chassis.

The bottom-support rails are not interchangeable. Use the one marked with [R] for the right, and with [L]

for the left side of the rack.

Note

Installing the Chassis

Installing the Chassis in a Four-Post Rack

Figure 2: Aligning the Bottom-Support Rails

Bottom-support rail (2)1

Step 3 Attach the bottom-support rails on the rack as follows:

a) Position an expanding set of bottom-support brackets on the rack with each end touching a vertical mounting rail on

the front and rear of the rack as shown in the following figure.

Installing the Chassis

Installing the Chassis in a Four-Post Rack

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