Cisco Nexus 3000 series Manuale utente

Installing the Chassis

•Safety, on page 1

•Installation Options with Rack-Mount Kits, on page 4

•Airflow Considerations, on page 5

•Installation Guidelines, on page 5

•Unpacking and Inspecting the Switch, on page 6

•Installing the Switch Using the NXK-ACC-KIT-1RU Rack-Mount Kit, on page 7

•Installing the Airflow Sleeve (N9K-AIRFLOW-SLV), on page 10

•Grounding the Chassis, on page 11

•Starting the Switch, on page 13

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 1040—Product Disposal

Ultimate disposal of this product should be handled according to all national laws and regulations.

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 371—Power Cable and AC Adapter

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

and batteries. Using any other cables or adapters could cause a malfunction or a fire. Electrical Appliance and

Material Safety Law prohibits the use of UL-certified cables (that have the "UL" or "CSA" shown on the

cord), not regulated with the subject law by showing "PSE" on the cord, for any other electrical devices than

products designated by Cisco.

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

Installing the Chassis

Safety

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 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

Before performing any of the following procedures, ensure that power is removed from the DC circuit.

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

Installing the Chassis

Safety

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

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 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 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

Installation Options with Rack-Mount Kits

The rack-mount kit enables you to install the switch into racks of varying depths. You can position the switch

with easy access to either the port connections or the fan and power supply modules.

You can install the switch using the following rack-mount options:

• Rack-mount kit (NXK-ACC-KIT-1RU) which you can order from Cisco. This option offers you easy

installation, greater stability, increased weight capacity, added accessibility, and improved removability

with front and rear removal.

• Rack-mount kit (N3K-C3064-ACC-KIT) which you can order from Cisco.

The rack or cabinet that you use must meet the requirements listed the in General Requirements for Cabinets

and Racks section.

Installing the Chassis

Installation Options with Rack-Mount Kits

You are responsible for verifying that your rack and rack-mount hardware comply with the guidelines that

are described in this doc.

Note

Airflow Considerations

The switch comes with fan and power supply modules that have either port-side intake or port-side exhaust

airflow for cooling the switch. If you are positioning the port end of the switch in a cold aisle, make sure that

the switch has port-side intake fan modules with burgundy coloring. If you are positioning the fan and power

supply modules in a cold aisle, make sure that the switch has port-side exhaust fan modules with blue colorings.

All fan modules must have the same direction of airflow.

Installation Guidelines

When installing the switch, follow these guidelines:

• Ensure that there is adequate clearance space around the switch to allow for servicing the switch and for

adequate airflow.

• Ensure that the chassis can be adequately grounded. If the switch is not mounted in a grounded rack, we

recommend connecting the system ground on the chassis directly to an earth ground.

• Ensure that the site power meets the power requirements for the switch. 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 the switch, which can have substantial current draw fluctuations

because of fluctuating data traffic patterns.

Caution

• Ensure that circuits are sized according to local and national codes. Typically, this often requires one or

both of the following:

• AC power supplies typically require at least a 15-A or 20-A AC circuit, 100 to 240 VAC, and a

frequency of 50 to 60 Hz.

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

For AC input application, please refer to the statement below:

Note

Installing the Chassis

Airflow Considerations

Statement 1005—Circuit Breaker

This product relies on the building's installation for short-circuit (overcurrent)

protection. Ensure that the protective devices is rated not greater than 20A (North

America), 16A (Europe), and 13A (UK).

Warning

For DC input application, please refer to the statement below:

Note

Statement 1005—Circuit Breaker

This product relies on the building's installation for short-circuit (overcurrent)

protection. Ensure that the protective devices is rated not greater than 40A for

the regular DC power supplies (rated 48-60VDC) and 10A for the HVDC power

supplies.

Warning

Unpacking and Inspecting the Switch

Before you install the switch, be sure to unpack and inspect the switch for damage or missing components.

If anything is missing or damaged, contact your customer service representative immediately.

Keep the shipping container in case the chassis requires shipping at a later time.

Tip

Before you begin

Before you unpack the switch and before you handle any switch components, be sure that you are wearing a

grounded electrostatic discharge (ESD) strap. To ground the strap, attach it directly to an earth ground or to

a grounded rack or grounded chassis (there must be a metal-to-metal connection to the earth ground).

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

received all items, including the following:

• Accessory Kit

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 packing slip)

• Model and serial number of the damaged unit

• Description of damage

Installing the Chassis

Unpacking and Inspecting the Switch

• Effect of damage on the installation

Installing the Switch Using the NXK-ACC-KIT-1RU Rack-Mount

Kit

To install the switch, you must attach front and rear mounting brackets to the switch, install slider rails on the

rear of the rack, slide the switch onto the slider rails, and secure the switch to the front of the rack. Typically,

the front of the rack is the side easiest to access for maintenance.

You must supply the eight 10-32 or 12-24 screws required to mount the slider rails and switch to the rack.

Note

Before you begin

• You have inspected the switch shipment to ensure that you have everything ordered.

• Make sure that the switch rack-mount kit includes the following parts:

• Front rack-mount brackets (2)

• Rear rack-mount brackets (2)

• Slider rails (2)

• M4 x 0.7 x 8-mm Phillips pan-head screws (10)

• The rack is installed and secured to its location.

Step 1 Install two front rack-mount brackets and the two rear rack-mount brackets to the switch as follows:

a) Determine which end of the chassis is to be located in the cold aisle as follows:

• If the switch has port-side intake modules (fan modules with burgundy coloring), position the switch so that its

ports will be in the cold aisle.

• If the switch has port-side exhaust modules (fan modules with blue coloring), position the switch so that its fan

and power supply modules will be in the cold aisle.

b) Position the front rack-mount bracket and the rear rack-mount bracket so that its screw holes are aligned to the screw

holes on the side of the chassis.

You can align the holes in the rack-mount bracket to the holes on the side of the chassis (see the two

ways to mount these brackets on a typical chassis, in following figure). The holes that you use depend

on the requirements of your rack and the amount of clearance required for interface cables (3 inches [7.6

mm] minimum) and module handles (1 inch [2.5 mm] minimum).

Note

Installing the Chassis

Installing the Switch Using the NXK-ACC-KIT-1RU Rack-Mount Kit

c) Secure the front-mount bracket and the back-mount bracket to the chassis using four M4 screws and tighten each

screw to 12 in-lb (1.36 N·m) of torque.

d) Repeat Step 1 for the other front rack-mount bracket and the other back-mount bracket on the other side of the switch

and be sure to position that bracket the same distance from the front of the switch.

Depending on the chassis depth, the back rack-mount bracket may not fit. In that case the back rack-mount

bracket is not needed.

Note

Step 2 If you are not installing the chassis into a grounded rack, you must attach a customer-supplied grounding wire to the

chassis as explained in the Grounding the Chassis, on page 11 section. If you are installing the chassis into a grounded

rack, you can skip this step.

Step 3 Install the slider rails on the rack or cabinet as follows:

a) Determine which two posts of the rack or cabinet you should use for the slider rails. Of the four vertical posts in the

rack or cabinet, two will be used for the front mount brackets attached to the easiest accessed end of the chassis, and

the other two posts will have the slider rails.

b) Position a slider rail at the desired level on the back side of the rack and use 12-24 screws or 10-32 screws, depending

on the rack thread type, to attach the rails to the rack (see the following figure). Tighten 12-24 screws to 30 in-lb

(3.39 N·m) of torque and tighten 10-32 screws to 20 in-lb (2.26 N·m) of torque.

Installing the Chassis

Installing the Switch Using the NXK-ACC-KIT-1RU Rack-Mount Kit

c) Repeat Step 3 to attach the other slider rail to the other side of the rack.

To make sure that the slider rails are at the same level, you should use a level tool, tape measure, or carefully count

the screw holes in the vertical mounting rails.

Step 4 Insert the switch into the rack and attach it as follows:

a) Holding the switch with both hands, position the two rear rack-mount brackets on the switch between the rack or

cabinet posts that do not have slider rails attached to them (see the following figure).

b) Align the two rear rack-mount guides on either side of the switch with the slider rails installed in the rack. Slide the

rack-mount guides onto the slider rails, and then gently slide the switch all the way into the rack until the front

rack-mount brackets come in contact with two rack or cabinet posts.

c) Holding the chassis level, insert screws (12-24 or 10-32, depending on the rack type) in each of the two front rack-mount

brackets (using a total of six screws) and into the cage nuts or threaded holes in the vertical rack-mounting rails (see

the following figure).

Installing the Chassis

Installing the Switch Using the NXK-ACC-KIT-1RU Rack-Mount Kit

d) Tighten the 10-32 screws to 20 in-lb (2.26 N·m) or tighten the 12-24 screws to 30 in-lb (3.39 N·m).

Step 5 If you attached a grounding wire to the chassis grounding pad, connect the other end of the wire to the facility ground.

Installing the Airflow Sleeve (N9K-AIRFLOW-SLV)

The airflow sleeve (N9K-AIRFLOW-SLV) is installed to allow proper airflow, so that the switch is properly

cooled.

Table 1: Airflow Sleeve Minimum and Maximum Rack Rail Depth with the N3K-C3064-ACC-KIT.

Maximum Rack DepthMinimum Rack DepthChassis

748.25 mm636.49 mmN9K-C92348GC-X

916.60 mm824.80 mmN9K-C9316D-GX

898.70 mm794.20 mmN9K-C9332C

915.80 mm824.00 mmN9K-C9332D-GX2B

355.90 mm315.90 mmN9K-C9336C-FX2

898.70 mm806.90 mmN9K-C9336C-FX2-E

764.29 mm672.49 mmN9K-C9348GC-FXP

873.09 mm781.29 mmN9K-C93108TC-FX

769.69 mm672.49 mmN9K-C93108TC-FX3P

873.09 mm781.29 mmN9K-C93180YC-FX

784.25 mm672.49 mmN9K-C93180YC-FX3

Installing the Chassis

Installing the Airflow Sleeve (N9K-AIRFLOW-SLV)

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