Cisco Nexus 93400LD-H1 Manual

Cisco Nexus 93400LD-H1 NX-OS Mode Switch Hardware Installation
Guide
First Published: 2023-12-14
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CONTENTS
Overview 1
CHAPTER 1
Overview 1
Preparing the Site 5
CHAPTER 2
Temperature Requirements 5
Humidity Requirements 5
Altitude Requirements 6
Dust and Particulate Requirements 6
Minimizing Electromagnetic and Radio Frequency Interference 6
Shock and Vibration Requirements 7
Grounding Requirements 7
Planning for Power Requirements 7
Airflow Requirements 8
Rack and Cabinet Requirements 9
Clearance Requirements 9
Installing the Chassis 11
CHAPTER 3
Safety 11
Installation Options with Rack-Mount Kits 14
Airflow Considerations 15
Installation Guidelines 15
Unpacking and Inspecting the Switch 16
Installing the Switch Using the NXK-ACC-KIT-1RU Rack-Mount Kit 16
Grounding the Chassis 20
Starting the Switch 21
Cisco Nexus 93400LD-H1 NX-OS Mode Switch Hardware Installation Guide
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Connecting the Switch to the Network 25
CHAPTER 4
Overview of Network Connections 25
Connecting a Console to the Switch 26
Creating the Initial Switch Configuration 27
Setting Up the Management Interface 28
Connecting Interface Ports to Other Devices 29
Replacing Components 31
CHAPTER 5
Replacing a Fan Module 31
Removing a Fan Module 31
Installing a Fan Module 32
Replacing a Power Supply Module 32
Removing an AC Power Supply 32
Removing an HVAC/HVDC Power Supply 33
Removing a DC Power Supply 33
Installing an AC Power Supply 34
Installing an HVAC/HVDC Power Supply 35
Installing a DC Power Supply 35
Rack Specifications 37
APPENDIX A
Overview of Racks 37
General Requirements for Cabinets and Racks 37
Requirements Specific to Standard Open Racks 38
Requirements Specific to Perforated Cabinets 38
Cable Management Guidelines 38
System Specifications 39
APPENDIX B
Environmental Specifications 39
Switch Dimensions 39
Switch and Module Weights and Quantities 40
Transceiver and Cable Specifications 40
Switch Power Input Requirements 40
Power Specifications 41
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Contents

1400-W AC Power Supply Specifications 41
2000-W HVAC/HVDC Power Supply Specifications 41
2000-W DC Power Supply Specifications 42
Power Cable Specifications 42
Power Cable Specifications for AC Power Supplies 42
HVAC/HVDC Power Cables Supported by ACI-Mode and NX-OS Mode Switches 43
DC Power Cable Specifications 44
Regulatory Standards Compliance Specifications 44
LEDs 47
APPENDIX C
Switch Chassis LEDs 47
Fan Module LEDs 48
Power Supply LEDs 48
Additional Kits 49
APPENDIX D
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Contents

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Contents

CHAPTER 1
Overview
•Overview, on page 1
Overview
The Cisco Nexus 93400LD-H1 switch (N9K-C93400LD-H1) is a 1-RU fixed-port, L2/L3 switch, designed
for deployment in data centers. This switch has 48 50G SFP56 ports, and 4 400G QSFP-DD uplink ports.
This switch includes the following user-replaceable components:
• Fan modules (five) with the following airflow choices:
• Port-side intake airflow with burgundy coloring (NXA-SFAN-35CFM-PI)
• Port-side exhaust airflow with blue coloring (NXA-SFAN-35CFM-PE)
• Power supply modules (two—one for operations and one for redundancy [1+1]) with the following
choices (a mix of AC and DC power sources is only supported for hot swapping purposes, with a time
limit of 15 minutes, but do not mix airflow directions):
•1400-W AC power supply with port-side intake airflow (burgundy coloring) (NXA-PAC-1400W-PI)
• 1400-W AC power supply with port-side exhaust airflow (blue coloring) (NXA-PAC-1400W-PE)
• 2000-W DC power supply with port-side intake airflow (burgundy coloring) (NXA-PDC-2KW-PI)
• 2000-W DC power supply with port-side exhaust airflow (blue coloring) (NXA-PDC-2KW-PE)
•2000-W HVDC power supply with port-side intake airflow (burgundy coloring) (NXA-PHV-2KW-PI)
The following figure shows the switch features on the port side of the chassis.
Cisco Nexus 93400LD-H1 NX-OS Mode Switch Hardware Installation Guide
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400-G QSFP-DD ports (4)250-GE ZSFP ports (48)1
LEDs (BCN, STS, ENV, SYNC, GPS, TIMING)3
To determine which transceivers, adapters, and cables are support this switch, see the Cisco Transceiver
Modules Compatibility Information document.
The following figure shows the switch features on the power supply side of the chassis.
DIN connector (10 MHz)2DIN connector (1 PPS)1
Time of Day (ToD) port4Power supply modules (1 or 2) (AC
power supplies shown) with slots
numbered 1 (left) and 2 (right)
3
Management port (SFP)6USB port5
Console port8Management port (RJ45)7
Fan modules (5) with slots
numbered 1 (left) to 5 (right)
9
The following figure shows the switch features on the side of the chassis.
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Overview
Overview

Grounding pad1
The fan and power supply modules are field replaceable. You can replace one fan module or one power supply
module during operations so long as the other modules are installed and operating. If you have only one power
supply installed, you can install the replacement power supply in the open slot before removing the original
power supply.
If the switch has port-side intake airflow (burgundy coloring for fan modules), you must locate the ports in
the cold aisle. If the switch has port-side exhaust airflow (blue coloring for fan modules), you must locate the
ports in the hot aisle. If you locate the air intake in a hot aisle, the switch can overheat and shut down.
Caution
Cisco Nexus 93400LD-H1 NX-OS Mode Switch Hardware Installation Guide
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Overview
Overview

Cisco Nexus 93400LD-H1 NX-OS Mode Switch Hardware Installation Guide
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Overview
Overview

CHAPTER 2
Preparing the Site
•Temperature Requirements, on page 5
•Humidity Requirements, on page 5
•Altitude Requirements, on page 6
•Dust and Particulate Requirements, on page 6
•Minimizing Electromagnetic and Radio Frequency Interference, on page 6
•Shock and Vibration Requirements, on page 7
•Grounding Requirements, on page 7
•Planning for Power Requirements, on page 7
•Airflow Requirements, on page 8
•Rack and Cabinet Requirements, on page 9
•Clearance Requirements, on page 9
Temperature Requirements
The switch requires an operating temperature of 32 to 104 degrees Fahrenheit (0 to 40 degrees Celsius). If
the switch is not operating, the temperature must be between –40 to 158 degrees Fahrenheit (–40 to 70 degrees
Celsius).
The Cisco Nexus 93400LD-H1 Switches function in operating temperatures of up to 104 degrees Fahrenheit
(40 degrees Celsius) at seal level. For every 1000 feet (300 meters) elevation, the maximum ambient temperature
is reduced by 1.8 degrees Fahrenheit (1 degree Celsius).
Humidity Requirements
High humidity can cause moisture to enter the switch. Moisture can cause corrosion of internal components
and degradation of properties such as electrical resistance, thermal conductivity, physical strength, and size.
The switch is rated to withstand from 5- to 95-percent (nonoperating) and 5- to 90-percent (operating) relative
humidity.
Buildings in which the climate is controlled by air-conditioning in the warmer months and by heat during the
colder months usually maintain an acceptable level of humidity for the switch equipment. However, if the
switch is located in an unusually humid location, use a dehumidifier to maintain the humidity within an
acceptable range.
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Altitude Requirements
Altitude rating is 10,000 ft (3048 m). For China, it is 6,562 ft (2000 m).
Dust and Particulate Requirements
Exhaust fans cool power supplies and system fans cool switches 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 switch and increased internal chassis temperature. Dust and particles can act as insulators and
interfere with the mechanical components in the switch. A clean operating environment can greatly reduce
the negative effects of dust and other particles.
In addition to keeping your environment free of dust and particles, follow these precautions to avoid
contamination of your switch:
• Do not permit smoking near the switch.
• Do not permit food or drink near the switch.
Minimizing Electromagnetic and Radio Frequency Interference
Electromagnetic interference (EMI) and radio frequency interference (RFI) from the switch can adversely
affect other devices, such as radio and television (TV) receivers. Radio frequencies that emanate from the
switch can also interfere with cordless and low-power telephones. Conversely, RFI from high-power telephones
can cause spurious characters to appear on the switch monitor.
RFI is defined as any EMI with a frequency above 10 kHz. This type of interference can travel from the switch
to other devices through the power cable and power source or through the air as transmitted radio waves. The
Federal Communications Commission (FCC) publishes specific regulations to limit the amount of EMI and
RFI that are emitted by computing equipment. Each switch meets these FCC regulations.
To reduce the possibility of EMI and RFI, follow these guidelines:
• Cover all open expansion slots with a blank filler plate.
• Always use shielded cables with metal connector shells for attaching peripherals to the switch.
When wires are run for any significant distance in an electromagnetic field, interference can occur to the
signals on the wires with the following implications:
• Bad wiring can result in radio interference emanating from the plant wiring.
• Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal drivers
and receivers in the chassis and even create an electrical hazard by conducting power surges through
lines into equipment.
To predict and prevent strong EMI, you need to consult experts in radio frequency interference (RFI).
Note
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Preparing the Site
Altitude Requirements

The wiring is unlikely to emit radio interference if you use a twisted-pair cable with a good distribution of
grounding conductors. If you exceed the recommended distances, use a high-quality twisted-pair cable with
one ground conductor for each data signal when applicable.
If the wires exceed the recommended distances, or if wires pass between buildings, give special consideration
to the effect of a lightning strike in your vicinity. The electromagnetic pulse that is caused by lightning or
other high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic
switches. You will want to consult experts in electrical surge suppression and shielding if you had similar
problems in the past.
Caution
Shock and Vibration Requirements
The switch has been shock- and vibration-tested for operating ranges, handling, and earthquake standards.
Grounding Requirements
The switch is sensitive to variations in voltage that is supplied by the power sources. Overvoltage, undervoltage,
and transients (or spikes) can erase data from memory or cause components to fail. To protect against these
types of problems, ensure that there is an earth-ground connection for the switch. You can connect the grounding
pad on the switch either directly to the earth-ground connection or to a fully bonded and grounded rack.
When you properly install the chassis in a grounded rack, the switch is grounded because it has a metal-to-metal
connection to the rack. Alternatively, you can ground the chassis by using a customer-supplied grounding
cable that meets your local and national installation requirements. For U.S. installations, we recommend
6-AWG wire. Connect your grounding cable to the chassis with a grounding lug (provided in the switch
accessory kit) and to the facility ground.
You automatically ground AC power supplies when you connect them to AC power sources. For DC power
supplies, you must connect a grounding wire when wiring the power supply to the DC power source.
Note
An electrical conducting path shall exist between the product chassis and the metal surface of the enclosure
or rack in which it is mounted or to a grounding conductor. Electrical continuity shall be provided by using
thread-forming type mounting screws that remove any paint or non-conductive coatings and establish a
metal-to-metal contact. Any paint or other non-conductive coatings shall be removed on the surfaces between
the mounting hardware and the enclosure or rack. The surfaces shall be cleaned and an antioxidant applied
before installation.
Note
Planning for Power Requirements
The switch includes two power supplies (1-to-1 redundancy with current sharing) in one of the following
combinations:
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Preparing the Site
Shock and Vibration Requirements

• Two 1400-W AC power supplies
• Two 2000-W DC power supplies
• Two 2000-W HVDC power supplies
For 1+1 redundancy, you must use two power sources and connect each power supply to a separate power
source.
Note
Some of the power supply modules have rating capabilities that exceed the switch requirements. When
calculating your power requirements, use the switch requirements to determine the amount of power that is
required for the power supplies.
Note
To minimize the possibility of circuit failure, make sure that each power-source circuit that is used by the
switch is dedicated to the switch.
Statement 1033
Connect the unit only to DC power source that complies with the Safety Extra-Low Voltage (SELV)
requirements in IEC 60950 based safety standards.
Warning
We recommend 8-AWG wire for DC installations in the U.S.
Note
Airflow Requirements
The switch is positioned with its ports in either the front or the rear of the rack depending on your cabling
and maintenance requirements.
To identify the airflow options for your switch, see the user-replaceable components in the Overview section
of this document.
You must have fan and power supply modules that move the coolant air from the cold aisle to the hot aisle
in one of the following ways:
• Port-side exhaust airflow—Cool air enters the chassis through the fan and power supply modules in the
cold aisle and exhausts through the port end of the chassis in the hot aisle.
• Port-side intake airflow—Cool air enters the chassis through the port end in the cold aisle and exhausts
through the fan and power supply modules in the hot aisle.
You can identify the airflow direction of each fan and power supply module by its coloring as follows:
• Blue coloring indicates port-side exhaust airflow.
• Burgundy coloring indicates port-side intake airflow.
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Preparing the Site
Airflow Requirements

To prevent the switch from overheating and shutting down, you must position the air intake for the switch in
a cold aisle. The fan and power supply modules must have the same direction of airflow. If you must change
the airflow direction for the switch, you must shutdown the switch before changing the modules.
Note
Rack and Cabinet Requirements
You can install the following types of racks or cabinets for your switch:
• Standard perforated cabinets
• Solid-walled cabinets with a roof fan tray (bottom-to-top cooling)
• Standard open four-post Telco racks
Work with your cabinet vendors to determine which of their cabinets meet the following requirements or see
the Cisco Technical Assistance Center (TAC) for recommendations:
• Use a standard 19-inch (48.3-cm), four-post Electronic Industries Alliance (EIA) cabinet or rack with
mounting rails that conform to English universal hole spacing per section 1 of the ANSI/EIA-310-D-1992
standard.
• The depth of a four-post rack must be 24 to 32 inches (61.0 to 81.3 cm) between the front and rear
mounting rails (for proper mounting of the bottom-support brackets or other mounting hardware).
Also, you must have power receptacles that are located within reach of the power cords that are used with the
switch.
Statement 1048—Rack Stabilization
The rack stabilizing mechanism must be in place, or the rack must be bolted to the floor before installation
or servicing. Failure to stabilize the rack can cause bodily injury.
Warning
Clearance Requirements
Provide the chassis with adequate clearance between the chassis and any other rack, device, or structure so
that you can properly install the chassis. Provide the chassis with adequate clearance to route cables, provide
airflow, and maintain the switch. For the clearances required for an installation of this chassis in a four-post
rack, see the following figure.
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Preparing the Site
Rack and Cabinet Requirements

Depth of the chassis5Chassis1
Maximum extension of the bottom-support rails
36.0 in (91.0 cm)
6Vertical rack-mount posts and rails2
Depth of the front clearance area (equal to the
depth of the chassis).
7Chassis width
17.3 in (43.9 cm)
3
Width of the front clearance area (equal to the
width of the chassis with two rack-mount
brackets that are attached to it).
19.0 in (43.3 cm)
4
Both the front and rear of the chassis must be open to both aisles for airflow.
Note
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Preparing the Site
Clearance Requirements

CHAPTER 3
Installing the Chassis
•Safety, on page 11
•Installation Options with Rack-Mount Kits, on page 14
•Airflow Considerations, on page 15
•Installation Guidelines, on page 15
•Unpacking and Inspecting the Switch, on page 16
•Installing the Switch Using the NXK-ACC-KIT-1RU Rack-Mount Kit, on page 16
•Grounding the Chassis, on page 20
•Starting the Switch, on page 21
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.
There are no serviceable parts inside. To avoid risk of electric shock, do not open.
Warning
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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.
There are no serviceable parts inside. To avoid risk of electric shock, do not open.
Warning
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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—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.
If your unit has modules, secure them with the provided screws.
Warning
Statement 1022—Disconnect Device
To reduce the risk of electric shock and fire, a readily accessible 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 the risk of electric shock, connect the unit to a DC power source that complies with the SELV
requirements in IEC 60950-based safety standards or ES1 and PS1 requirements in IEC 62368-based safety
standards or to a Class 2 power supply.
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
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Installing the Chassis
Safety

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
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
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
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.
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Installing the Chassis
Installation Options with Rack-Mount Kits