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Contact e-mail

Building/site name

Data center location

Floor location

Address (line 1)

Address (line 2)

City

State/Provence

Contact person

ZIP/postal code

Country

Chassis and Module Information

Use the following worksheet to record information about the switch.

Contract number

Chassis serial number

Product number

Use the following worksheet to record network-related information.

Switch IP address

Switch IP netmask

Hostname

Domain name

IP broadcast address

Gateway/router address

DNS address

Use the following worksheet to record information about the modules in the switch.

Notes

Module Serial Number

Module Type

Module Slot

Fan module 1

Cisco Nexus 93180LC-EX NX-OS Mode Hardware Installation Guide

Site Preparation and Maintenance Records

Chassis and Module Information

Содержание Nexus 93180LC-EX

Страница 1: ...rdware Installation Guide First Published 2017 05 17 Last Modified 2018 10 19 Americas Headquarters Cisco Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 527 0883 ...

Страница 2: ...isco will have no liability for delay in the delivery or failure to deliver any products or feature roadmap items that may be set forth in this document Any Internet Protocol IP addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers Any examples command display output network topology diagrams and other figures included in the document are shown...

Страница 3: ...ring the Site 5 C H A P T E R 2 Temperature Requirements 5 Humidity Requirements 5 Altitude Requirements 5 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 9 Rack and Cabinet Requirements 9 Clearance Requirements 10 Installing the Switc...

Страница 4: ...0 Connecting the Management Interface 31 Connecting Interface Ports to Other Devices 31 Installing QSFP Transceivers 32 Managing the Switch 35 C H A P T E R 5 Configuring Ports 35 Replacing Components 37 C H A P T E R 6 Replacing a Fan Module 37 Removing a Fan Module 37 Installing a Fan Module 38 Replacing a Power Supply Module 38 Replacing an AC Power Supply 38 Replacing a High Voltage HVAC HVDC ...

Страница 5: ...ble Specifications 49 Power Cable Specifications for AC Power Supplies 49 HVAC HVDC Power Cables Supported by ACI Mode and NX OS Mode Switches 50 DC Power Cable Specifications 51 Regulatory Standards Compliance Specifications 51 LEDs 53 A P P E N D I X C Switch Chassis LEDs 53 Fan Module LEDs 54 Power Supply LEDs 54 Additional Kits 57 A P P E N D I X D Rack Mount Kit NXK ACC KIT 1RU 57 Rack Mount ...

Страница 6: ...Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide vi Contents ...

Страница 7: ... as shown bold Italic text indicates arguments for which the user supplies the values Italic Square brackets enclose an optional element keyword or argument x Square brackets enclosing keywords or arguments separated by a vertical bar indicate an optional choice x y Braces enclosing keywords or arguments separated by a vertical bar indicate a required choice x y Nested set of square brackets or br...

Страница 8: ...lowing URL https www cisco com en US products ps13386 tsd_products_support_series_home html Release Notes The release notes are available at the following URL https www cisco com en US products ps13386 prod_release_notes_list html Configuration Guides These guides are available at the following URL https www cisco com en US products ps13386 products_installation_and_configuration_guides_list html ...

Страница 9: ...sco Nexus 92160YC X NX OS Mode Switch Hardware Installation Guide Cisco Nexus 92300YC NX OS Mode Switch Hardware Installation Guide Cisco Nexus 92304QC NX OS Mode Switch Hardware Installation Guide Cisco Nexus 9236C NX OS Mode Switch Hardware Installation Guide Cisco Nexus 9272Q NX OS Mode Switch Hardware Installation Guide Cisco Nexus 93108TC EX NX OS Mode Switch Hardware Installation Guide Cisco...

Страница 10: ...nd your comments to nexus9k docfeedback cisco com We appreciate your feedback Obtaining Documentation and Submitting a Service Request For information on obtaining documentation using the Cisco Bug Search Tool BST submitting a service request and gathering additional information see What s New in Cisco Product Documentation at https www cisco com warp public 687 Directory DirTAC shtml Subscribe to...

Страница 11: ...low with burgundy coloring NXA FAN 30CFM B Port side exhaust airflow with blue coloring NXA FAN 30CFM F Table 1 Fan Speeds for this Switch Port Side Exhaust Fan Speed Port Side Intake Fan Speed 70 50 Typical Minimum 100 100 Maximum Note Power supply modules two one for operations and one for redundancy 1 1 with the following choices do not mix AC and DC power sources and do not mix airflow directi...

Страница 12: ...s ports 29 32 4 Chassis LEDs Beacon BCN Status STS and Environment ENV 1 Screw holes 6 for attaching rack mounting brackets 5 Port lane LEDs 2 Grounding pad 6 Port lane switch button 3 To determine which transceivers adapters and cables this switch supports see the Cisco Transceiver Modules Compatibility Information document The following figure shows the hardware features seen from the power supp...

Страница 13: ...dules 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 that is installed you can install the replacement power supply in the open slot before removing the original power supply All the fan and power supply modules must have the same direction of airflow Otherw...

Страница 14: ...Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 4 Overview Overview ...

Страница 15: ...t 40 to 70 degrees 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 noncondensing relative humidity Buildings in which the climate is controlled by air ...

Страница 16: ...o 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 ...

Страница 17: ...atively 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...

Страница 18: ... to the switch For AC input application please refer to the following statement Note Statement 1005 Circuit Breaker This product relies on the building s installation for short circuit overcurrent protection Ensure that the protective devices are rated not greater than 20A North America 16A Europe and 13A UK Warning For DC input application please refer to the following statement Note Statement 10...

Страница 19: ...ugh the port end in the cold aisle and exhausts through the fan and power supply modules in the hot aisle Dual direction airflow The direction of the installed fan modules determines the airflow 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 ...

Страница 20: ...t required for cabling 3 0 inches 7 6 cm between the rear of the chassis and the interior of the cabinet required for airflow in the cabinet if used No clearance is required between the chassis and the sides of the rack or cabinet no side airflow 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...

Страница 21: ...depth of the chassis 7 Chassis 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 Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 11 Preparing the Site Clearance Requirements ...

Страница 22: ...Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 12 Preparing the Site Clearance Requirements ...

Страница 23: ...itch 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...

Страница 24: ...The rack or cabinet that you use must meet the requirements listed the in General Requirements for Cabinets and Racks on page 43 section 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 exhaus...

Страница 25: ...ta 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 HVAC HVDC power supplies require the following HVAC input voltage range of 230 to 277 VAC with a frequency of 50 to 60 Hz HVDC ...

Страница 26: ...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 discrepa...

Страница 27: ...rdered 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 countersink screws 12 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 loc...

Страница 28: ...hat 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 24 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 Deter...

Страница 29: ...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 If you attached a grounding cable to the chassis you w...

Страница 30: ...ounting 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 sh...

Страница 31: ...ch Note b Position a front mount bracket so that four of its screw holes are aligned to the screw holes on the side of the chassis You can align any four of the holes in the front rack mount bracket to four of the six screw 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 rac...

Страница 32: ...two M4 screws see Callout 4 or 8 in the previous figure Tighten the screws to 12 in lb 1 36 N m of torque c Repeat Step 2 for the other rear rack mount bracket on the other side of the switch Step 3 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 24 section If you are inst...

Страница 33: ... the rack mount guides onto the slider rails until the front rack mount brackets come in contact with the front rack mount rails 2 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 cont...

Страница 34: ... 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 th...

Страница 35: ...mately 0 75 inch 19 mm of the covering from the end of the grounding wire We recommend 6 AWG wire for the U S installations Step 2 Insert the stripped end of the grounding wire into the open end of the grounding lug Use a crimping tool to crimp the lug to the wire see the following figure Verify that the ground wire is securely attached to the grounding lug by attempting to pull the wire out of th...

Страница 36: ...might need an optional jumper power cord to connect the switch to your outlet receptacle Note The switch is not connected to the network this includes any management or interface connections The fan and power supply modules are fully secured in their chassis slots Step 1 For each AC power supply do the following a Using the recommended AC power cable for your country or region connect one end to t...

Страница 37: ...acle on the power supply Make sure that the connector block clicks when fully inserted in the receptacle and does not pull out d If there is a safety cover for the terminals place and secure it over the terminals to avoid an electrical shock hazard e Turn on the power at the circuit breaker for the DC power source Step 4 Verify that the power supply LED is on and green Step 5 Listen for the fans t...

Страница 38: ...Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 28 Installing the Switch Chassis Starting the Switch ...

Страница 39: ...s in overhead or subfloor cable trays we strongly recommend that you locate power cables and other potential noise sources as far away as practical from network cabling that terminates on Cisco equipment In situations where long parallel cable runs cannot be separated by at least 3 3 feet 1 meter we recommend that you shield any potential noise sources by housing them in a grounded metallic condui...

Страница 40: ... modem If you do not connect it to a modem connect it either before powering the switch on or after the switch has completed the boot process Caution Before you begin Before you connect the switch to a console ensure that you have the following Computer terminal that supports VT100 terminal emulation The terminal emulation software such as HyperTerminal or Procomm Plus makes communication between ...

Страница 41: ... on the switch to other devices Depending on the types of interface ports on the switch you will need to use interface cables with QSFP28 QSFP SFP or SFP transceivers or RJ 45 connectors to connect the switch to other devices If you need to use SFP or SFP transceivers in a QSFP28 uplink port install a QSFP to SFP adapter such as the CVR QSFP SFP10G adapter in the QSFP28 port and then install the S...

Страница 42: ... QSFP Transceivers The QSFP transceiver module can have either a bail clasp latch or a pull tab latch The QSFP transceiver module is a static sensitive device Always use an ESD wrist strap or similar individual grounding device when handling QSFP transceiver modules or coming into contact with system modules Caution Step 1 Attach an ESD wrist strap to yourself and a properly grounded point on the ...

Страница 43: ...et opening and carefully slide the QSFP transceiver into the socket until the transceiver makes contact with the socket electrical connector Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 33 Connecting the Switch to the Network Installing QSFP Transceivers ...

Страница 44: ...Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 34 Connecting the Switch to the Network Installing QSFP Transceivers ...

Страница 45: ... configure all the ports in commonly used ways or by configuring ports individually Three of the templates that you can use are the following The top and bottom ports should run at the same speed If a speed difference is encountered the bottom port is disabled Note 28 40 50 Gigabit ports and 4 40 100 Gigabit ports default configuration 24 40 50 Gigabit ports and 6 40 100 Gigabit ports 18 40 100 Gi...

Страница 46: ...air of ports Connect the odd numbered port first to set the speed for the vertical pair of ports Note 1 10 Gigabit port using a QSFP to SFP adapter in the port You can individually configure ports 29 to 32 as follows 40 100 Gigabit QSFP QSFP28 uplink port default 40 100 Gigabit QSFP QSFP28 uplink port can be individually broken out with the 4x10 Gigabit or 4x25 Gigabit breakout feature For informa...

Страница 47: ... a cold aisle and exhausts to a hot aisle Otherwise the switch can overheat and shutdown If you are changing the airflow direction of all the modules in the chassis you must shutdown the switch before replacing all the fan and power supply modules with modules using the other airflow direction During operations all of the modules must have the same direction of airflow Caution Removing a Fan Modul...

Страница 48: ... two power supplies for redundancy With one power supply providing the necessary power for operations you can replace the other power supply during operations so long as the new power supply has the same airflow direction as the other modules in the chassis You can replace a power supply with another supported power supply that has the same power source type and the same wattage rating as the othe...

Страница 49: ...g the connectors Caution Step 2 Install the replacement power supply as follows a Holding the replacement power supply with one hand underneath the module and the other hand holding the handle turn the power supply so that its release latch is on the right side and align the back end of the power supply the end with the electrical connections to the open power supply slot before carefully sliding ...

Страница 50: ...h ground Step 1 Remove an HVAC HVDC power supply as follows a Turn off the circuit breaker for the power feed to the power supply that you are replacing Be sure that the LEDs turn off on the power supply that you are removing b Remove the power cable from the power supply by pressing the tab on the top of the Anderson Power SAF D Grid connector and pull the cable and connector out of the power sup...

Страница 51: ...o not mix AC DC HVAC HVDC power supplies in the same switch You can determine the airflow direction by looking at the coloring of the latch on each power supply AC power supplies with burgundy latches have port side intake airflow direction and power supplies with blue latches have port side exhaust airflow direction Note An DC power source must be within reach of the power cables that will be use...

Страница 52: ... is on the right side and align the back end of the power supply the end with the electrical connections to the open power supply slot before carefully sliding the power supply all the way into the slot until it clicks into place If the power supply does not fit into the open slot turn the module over before sliding it carefully into the open slot Note b Test the installation by trying to pull the...

Страница 53: ...n racks If you are selecting an enclosed cabinet we recommend one of the thermally validated types either standard perforated or solid walled with a fan tray Note We do not recommend that you use racks that have obstructions such as power strips because the obstructions could impair access to field replaceable units FRUs Note General Requirements for Cabinets and Racks The cabinet or rack must als...

Страница 54: ...s in an open rack no side panels or doors ensure that the rack meets the following requirements The minimum vertical rack space per chassis must be equal to the rack unit RU of the chassis One rack unit is equal to 1 75 inches 4 4 cm The distance between the chassis air vents and any walls should be 2 5 inches 6 4 cm Requirements Specific to Perforated Cabinets A perforated cabinet has perforation...

Страница 55: ...age 49 Regulatory Standards Compliance Specifications on page 51 Environmental Specifications Specification Environment 32 to 104 F 0 to 40 C Ambient operating temperature Temperature 40 to 158 F 40 to 70 C Ambient nonoperating 5 to 85 Nonoperating Relative humidity 0 to 13 123 feet 0 to 4 000 meters Operating Altitude Switch Dimensions Height Depth Width Switch 1 72 inches 4 4 cm 1 RU 22 5 inches...

Страница 56: ...iver modules products device support tables list html To see the transceiver specifications and installation information see https www cisco com c en us support interfaces modules transceiver modules products device support tables list html Switch Power Input Requirements The following table lists the typical amount of power that the switch consumes It also lists the maximum amount of power that y...

Страница 57: ...eres 500 W Maximum output power per power supply 33 A sub cycle duration Maximum inrush current 12 ms at 500 W Maximum hold up time 12 VDC Power supply output voltage 12 VDC Power supply standby voltage Climate Savers Platinum Efficiency 80Plus Platinum certified Efficiency rating RSP1 Form factor 1200 W HVAC HVDC Power Supply Specifications These specifications apply to the 1200 W HVAC HVDC N9K P...

Страница 58: ...factor 930 W DC Power Supply Specifications These specifications apply to the following power supplies NXA PDC 930W PE NXA PDC 930W PI Specification Characteristic Nominal range 48 to 60 VDC nominal Range 40 to 60 VDC DC input voltage range 23 A at 48 VDC Maximum DC input current 930 W Maximum output power per power supply 35 A sub cycle duration Maximum inrush current 8 ms at 930 W Maximum hold u...

Страница 59: ...on 10 A 8 2 feet 2 5 m CAB IND 10A India Power Cord Jumper C13 C14 Connectors 6 6 feet 2 0 m CAB C13 C14 2M IN India Power Cord Jumper C13 C14 Connectors 9 8 feet 3 0 m CAB C13 C14 3M IN India 250 V 10 A 8 2 feet 2 5 m CAB 250V 10A IS Israel 250 VAC 10 A CEI 23 16 VII plug 8 2 feet 2 5 m CAB 9K10A IT Italy Power Cord Jumper C13 C14 Connectors 6 6 feet 2 0 m CAB C13 C14 2M JP Japan 125 VAC 13 A NEM...

Страница 60: ...f D Grid and SD connectors 277V AC CAB HVAC SD 0 6M HVAC 6 6 foot 2 0 m cable with Saf D Grid and C14 use for up to 240 V connector 250V AC CAB HVAC C14 2M HVAC 2 foot 0 6 m cable with Saf D Grid and RT connector 277V AC CAB HVAC RT 0 6M HVDC 6 6 foot 2 0 m cable with Saf D Grid and three terminal connectors 300V AC 400V DC 200 200 V DC CAB HVDC 3T 2M Not applicable All except Argentina Brazil and...

Страница 61: ...following table lists the regulatory standards compliance for the switch Table 3 Regulatory Standards Compliance Safety and EMC Description Specification Products should comply with CE Markings according to directives 2004 108 EC and 2006 95 EC Regulatory compliance CAN CSA C22 2 No 60950 1 Second Edition EN 60950 1 Second Edition IEC 60950 1 Second Edition AS NZS 60950 1 GB4943 Safety Cisco Nexus...

Страница 62: ...00 3 2 EN61000 3 3 KN22 Class A CNS13438 Class A EMC Emissions EN55024 CISPR24 EN300386 KN 61000 4 series EMC Immunity The product is RoH 6 compliant with exceptions for leaded ball grid array BGA balls and lead press fit connectors RoHS Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 52 System Specifications System Specifications ...

Страница 63: ...as activated this LED to identify this switch in the chassis Flashing blue BCN This switch is not being identified Off The switch is operational Green STS The switch is booting up Flashing amber Temperature exceeds the minor alarm threshold Amber Temperature exceeds the major alarm threshold Red The switch is not receiving power Off Fans and power supply modules are operational Green ENV At least ...

Страница 64: ...nal fan is probably not functional Red Fan module is not receiving power Off Power Supply LEDs The power supply LEDs are located on the left front portion of the power supply Combinations of states indicated by the Okay and Fault LEDs indicate the status for the module as shown in the following table Status LED LED Power supply is on and outputting power to the switch Off Green Power supply is con...

Страница 65: ...of the following conditions High voltage High power Low voltage Power supply installed in chassis but not connected to a power source Slow power supply fan Flashing amber Green Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 55 LEDs LEDs ...

Страница 66: ...Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 56 LEDs LEDs ...

Страница 67: ...y Description Illustration 1 Rack mount kit Front brackets 2 Rear brackets 2 Slider rails 2 M4 Phillips pan head screws 6 1 Ground lug kit Two hole lug 1 M4 x 8 mm Phillips pan head screws 2 1 EAC Compliance document Not applicable 1 Hazardous substances list for customers in China Not applicable The following table lists and illustrates the console cable CAB CONSOLE RJ45 that can be ordered Cisco...

Страница 68: ...cket 2 Slider rails 2 M4 x 7 mm mounting screws 16 1 Ground lug kit Two hole lug 1 M4 x 8 mm Phillips pan head screws 2 1 EAC Compliance document Not applicable 1 Hazardous substances list for customers in China Not applicable The following table lists and illustrates the console cable CAB CONSOLE RJ45 that can be ordered Quantity Description Illustration 1 Console cable with DB 9F and RJ 45F conn...

Страница 69: ...ion and accessibility The following table lists the site planning tasks that we recommend that you complete before you install the switch Your completion of each task ensures a successful switch installation Verification Time and Date Planning Activity Space evaluation Space and layout Floor covering Impact and vibration Lighting Physical access Maintenance access Environmental evaluation Ambient ...

Страница 70: ...enter ground Cable and interface equipment evaluation Cable type Connector type Cable distance limitations Interface equipment transceivers EMI evaluation Distance limitations for signaling Site wiring RFI levels Contact and Site Information Use the following worksheet to record contact and site information for the installation Contact person Contact phone Cisco Nexus 93180LC EX NX OS Mode Hardwar...

Страница 71: ...al number Product number Use the following worksheet to record network related information Switch IP address Switch IP netmask Hostname Domain name IP broadcast address Gateway router address DNS address Use the following worksheet to record information about the modules in the switch Notes Module Serial Number Module Type Module Slot Fan module 1 Cisco Nexus 93180LC EX NX OS Mode Hardware Install...

Страница 72: ...e Type Module Slot Fan module 2 Fan module 3 Fan module 4 Power Supply 1 Power Supply 2 Cisco Nexus 93180LC EX NX OS Mode Hardware Installation Guide 62 Site Preparation and Maintenance Records Site Preparation and Maintenance Records ...

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