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Appendix  E

Maintenance and Field Replacement

The following topics are covered in this section:

Considerations

Power Supplies

Fan Modules

E.1

 Considerations

All fans and power supplies are hot swappable.

The switch can be running while a power supply is being installed or removed, but the power supply
being replaced must not be connected to a power source.

All slots must be filled or covered with a blank for operation (even though power supply or fans may
not be functional).

Before you begin, refer to the Arista Networks document Safety Information and Translated Safety
Warnings available at: 

https://www.arista.com/en/support/product-documentation

.

Note:  Descriptions for the removal and replacement of power supplies and fans are for a
representative power supply or fan. Locations of status indicator LEDs may differ. Refer to
the front and rear panel illustrations of your device to locate the appropriate LED.

E.2

 Power Supplies

The following steps are required when removing power supplies from a switch.

E.2.1  Removing a Power Supply

1. Ground yourself with an ESD wrist strap.
2. Power down the power supply to be removed by disconnecting the AC power cable.

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Summary of Contents for 7280CR2 30 Series

Page 1: ...Arista Networks www arista com DOC 00136 05 Quick Start Guide 7280CR2x 30 Series 1 RU Data Center Switches ...

Page 2: ......

Page 3: ... the Rack 11 3 2 Four Post Rack Mount 11 3 2 1 Attaching Mounting Brackets to the Chassis Four post 12 3 2 2 Assembling the Rails onto the Equipment Rack 13 3 2 3 Attaching the Switch to the Rack 14 Chapter 4 Cabling the Switch 17 4 1 Grounding the Switch 17 4 2 Connecting Power Cables 17 4 2 1 AC Power Supplies 18 4 2 2 DC Power Supplies 19 4 3 Connecting Serial and Management Cables 22 Chapter 5...

Page 4: ...placement 39 E 1 Considerations 39 E 2 Power Supplies 39 E 2 1 Removing a Power Supply 39 E 2 2 Installing a Power Supply 40 E 3 Fan Modules 41 E 3 1 Removing a Fan Module 41 E 3 2 Installing a Fan Module 41 Appendix F Regulatory Model Numbers 43 Appendix G Taiwan RoHS Information 45 iv ...

Page 5: ... materials if you suspect that part of the shipment is damaged the carrier may need to inspect them If the boxes were not damaged in transit unpack them carefully Ensure that you do not discard any accessories that may be packaged in the same box as the main unit Inspect the packing list and confirm that you received all listed items Compare the packing list with your purchase order Parts List pro...

Page 6: ... CFR 1040 ne soit pas dépassée après avoir installé l émetteur récepteur de laser Ne pas installer des appareils à laser dont la cote de classe est supérieure à 1 Voir toutes les consignes de sécurité qui ont accompagné l émetteur récepteur avant l installation Seuls appareils laser de classe 1 certifiés pour une utilisation dans le pays d installation par l organisme compétent doivent être utilis...

Page 7: ... to 158 F 0 to 3 000 meters 0 to 10 000 feet 5 to 90 non condensing Table 3 Switch Specifications Power Supply Units Power Source PSU Models Ratings 1 Power Input AC Power PWR 1600AC 100 to 240 VAC 12 9 to 9 5 A 50 60 Hz Power Input DC Power PWR 1611 DC 48 to 60 VDC 39 A 1 AC PSUs could be rated for lower maximum power at lower line voltage 2 The AC PSU fans will not be operational if the power co...

Page 8: ...Switch Power Draw Typical Maximum Supported Power Supply DCS 7280CR2M 30 1300 W 1400 W PWR 1600AC PWR 1611 DC 4 ...

Page 9: ... locations on the rear panel Base the switch orientation on the airflow direction of the modules to assure the air inlet is always oriented toward the cool aisle Air Exit modules orient the rear panel toward the hot aisle If the airflow direction is not compatible with the installation site contact your sales representative Rack Space Install the switch in a 19 rack or cabinet The switch height is...

Page 10: ...r connections must be removed to de energize the unit Toutes les connexions d alimentation doivent être enlevées pour hors tension l appareil 2 2 Tools and Parts Required for Installation Each switch provides an accessory kit that contains parts that are required to install the switch In addition to the accessory kit the following tools and equipment are required to install the switch Two Post Rac...

Page 11: ...ic charge accumulation Minimize handling of assemblies and components Keep replacement parts in their original static free packaging Remove all plastic foam vinyl paper and other static generating materials from the work area Use tools that do not create ESD 7 ...

Page 12: ...8 ...

Page 13: ...nt To mount the switch onto a two post rack assemble the mounting brackets to the chassis then attach the brackets to the rack posts Two post accessory kits include the following two post mounting parts 2 three hole Mounting Brackets Each chassis side has attachment pins that align with bracket holes Pin orientation is symmetric and equidistant supporting bracket placements where the flange is flu...

Page 14: ...for Two Post Rack Mount The following procedure attaches the two post rack mount brackets to the chassis 1 Align the mounting brackets with the attachment pins to obtain the desired mounting position 2 Place the bracket flush on the chassis with attachment pins protruding through key openings 3 Slide the bracket toward the front flange until the bracket clip locks with an audible click The followi...

Page 15: ...The switch is mounted onto a four post rack by assembling two rails onto the rear posts sliding the switch onto the rails then securing the switch to the front posts The installation kit provides the following four post mounting parts 2 six hole mounting brackets 2 rail rods 2 rail slides The rail rods and rail slides assemble into two identical slide rails Each chassis side has attachment pins th...

Page 16: ...unting Brackets to the Chassis Four post The following figure displays the front bracket alignment for mounting the switch into a four post rack Figure 8 Attaching the Bracket to the Four post Switch 1 Attaching brackets for front mount This procedure attaches mounting brackets to the switch chassis as depicted in above figure 1 Align the mounting brackets with the attachment pins to obtain the de...

Page 17: ...The rails are installed into a rack by inserting the plugs into rack slots When installing rails into posts with threaded or rounded holes remove all plugs located on both sides of the assembled rails then install the rails with bolts that fit the rack Figure 9 Attaching the Mounting Brackets to the Switch Chassis 1 Step 1 4 Bracket clip attached 2 Step 2 5 Bracket clip aligned 3 Step 3 This proce...

Page 18: ...ost then contracting the rail while guiding the rack plugs into the post Figure 11 Attaching the Rails 4 Repeat Step 1 through Step 3 for the left posts Ensure the rails are on the same horizontal level Figure 11 Attaching the Rails 1 Detail A 2 Detail B 3 2 3 Attaching the Switch to the Rack After the rails are installed the switch slides on the rails into the rack Each bracket includes a thumb s...

Page 19: ...h the rail flanges attached to the rack posts 3 Attach the bracket flanges to the rack post using the quick release thumb screws supplied with the brackets Figure 13 Attaching the Switch to the Rack Posts Figure 13 Attaching the Switch to the Rack Posts After completing the four post rack mount proceed to Cabling the Switch 15 ...

Page 20: ...16 ...

Page 21: ...cosses M4 x 0 7 ne sont pas fournis Calibre des fils doit satisfaire des exigences de l installation locale et nationale Disponible dans le commerce 6 fils AWG est recommandé pour les installations aux États Unis Figure 14 Earth Grounding Pad Sockets 1 Power Supply Module 1 4 Fan Module 2 7 Fan Module 5 2 Management Ports 5 Fan Module 3 8 Ground 3 Fan Module 1 6 Fan Module 4 9 Power Supply Module ...

Page 22: ... and wires from the power supplies Important This equipment must be grounded Never defeat the ground conductor Cet équipement doit être mis à la terre Ne jamais modifier le conducteur de terre Important This unit requires overcurrent protection Cet appareil requiert une protection contre les surintensités 4 2 1 AC Power Supplies The following AC power supplies are supported PWR 1600AC Figure 15 AC...

Page 23: ...he fuses Pouvoir assurer qu il est retiré de circuits DC avant d effectuer des actions d installation Localiser les disjoncteurs ou des fusibles sur les lignes de courant continu desservant les circuits Coupez les circuits de lignes d alimentation ou retirer les fusibles Important Wire size must comply with local and national requirements and electrical codes Use only copper wire Le calibre du fil...

Page 24: ... 1 4 6 5 8 2 Use agency approved compression pressure lugs for wiring terminations with a single 5 16 mounting hole Two hole lugs should have 1 4 mounting holes on 5 8 centers 3 Slip on heat shrink tubing on the wire ends before assembling the lugs on to the wire The lugs must be crimped with the proper tool The tubing should extend over the lug s barrel and the wire s insulator 4 Shrink the tubin...

Page 25: ...tive screws 3 Terminal cover 6 Lug locking nuts To connect a DC power supply to power source 1 Remove the connection adapter if attached to the PSU by turning the two captive fasteners and pulling off the adapter 2 Remove the terminal cover to expose the connectors on the adapter 3 Attach the appropriate lugs to the source DC wires 4 Use DC cables with either insulated crimp on spade lugs or insul...

Page 26: ...ment Cables The accessory kit includes the following cables RJ 45 to DB 9 serial adapter cable RJ 45 Ethernet cable Table 5 RJ 45 to DB 9 Connections lists the pin connections of the RJ 45 to DB 9 adapter cable Table 5 RJ 45 to DB 9 Connections RJ 45 DB 9 RJ 45 DB 9 RTS 1 8 CTS GND 5 5 GND DTR 2 6 DSR RXD 6 3 TXD TXD 3 2 RXD DSR 7 4 DTR GND 4 5 GND CTS 8 7 RTS Note RJ 45 to DB 9 connections For mo...

Page 27: ...ls of all switches covered by this guide Figure 19 Front Panel LEDs 1 System status LED 3 Power supply 1 status LED 2 Fan tray status LED 4 Power supply 2 status LED Figure 20 Management Ports 1 Console serial port 4 Link status LED 2 USB port 5 Activity status LED 23 3 Ethernet management port 6 System status LED ...

Page 28: ...ow control 1 stop bit No parity bits 8 data bits Ethernet Management Port Connect to 10 100 1000 management network with RJ 45 Ethernet cable USB Port The USB port may be used for software or configuration updates CAUTION Excessive bending can damage interface cables especially optical cables Flexion excessive peut endommager les câbles d interface notamment des câbles optiques 24 ...

Page 29: ... Cables As the switch boots without a startup config file it displays the following through the console The device is in Zero Touch Provisioning mode and is attempting to download the startup config from a remote system The device will not be fully functional until either a valid startup config is downloaded from a remote system or Zero Touch Provisioning is cancelled To cancel Zero Touch Provisio...

Page 30: ...Save the configuration by typing write memory or copy running config startup config localhost copy running config startup config When the management port IP address is configured use this command to access the switch from a host using the address configured in Step 9 ssh admin 192 0 2 8 Refer to the Arista Networks User Manual for complete switch configuration information 26 ...

Page 31: ...tatus Indicators displays the DCS 7280CR2K 30 front panel LEDs Figure 21 System Status Indicators 1 System status LED 3 Power supply 1 status LED 2 Fan tray status LED 4 Power supply 2 status LED Table 6 Switch Indicators LED States Front LED Name LED State Device Status Blinking Green System is powering up System Status LED Green Normal operations Due to power supply and fan redundancy this LED w...

Page 32: ...n a PSU is completely removed or has a stuck fan rotor Fan Status LED Red Two or more fans any combination of fan modules or PSU fans are disconnected or malfunctioning The switch will automatically execute a graceful shutdown shortly Green PSU is functioning and fully operational AC is present Aux output is ON and Main output is ON PSU 1 2 Status LED Off PSU has been removed or is not operating p...

Page 33: ...havior for QSFP and SFP ports is consistent Table 7 Port LED States Front LED State Status Off Port link is down Green Port link is up Yellow Port is software disabled Flashing Yellow Port failed diagnostics A 2 Rear Status Indicators Fan and power supply modules are accessed from the rear panel Each fan and power supply module contains an LED that reports the module status Fan Status LEDs are on ...

Page 34: ...LED Table 8 Fan Status LED States Rear LED State Status Off The fan module is not detected If it is inserted it may not be seated properly Green The fan is operating normally This LED state is exclusive to its fan module and independent of the states of its neighboring fans and power supplies Red The fan has failed Figure 24 AC Power Supply Status LED 30 ...

Page 35: ... power present Normal operation Green Input power present Power Supply fault Yellow No Input power Supply installed in chassis Off Input power present Supply not installed in chassis Green Note You can narrow down the error condition by logging in to the switch to view the specific device state Refer to the Arista User Manual s Switch Environment Control chapter under the topic Viewing Environment...

Page 36: ...32 ...

Page 37: ...ontained in the switch accessory kit The following topics are covered in this section Rack Mount Parts Cables B 1 Rack Mount Parts B 1 1 Four Post Rack Mount Parts Figure 25 Four Post Rack Mount Parts 1 Rail Slide 3 Assembled Rail 2 Rail Rod 4 Rack Plugs B 1 2 Two Post Rack Mount Parts Figure 26 Two Post Rack Mount Parts 1 Mounting Ear Left 2 Mounting Ear Right 33 ...

Page 38: ... 2 Cables Quantity Description 2 Power cables IEC 320 C13 C14 13 A 250 V 1 RJ 45 Patch Panel Cable 1 RJ 45 to DB9 Adapter Cable Warning All provided power cables are for use only with Arista products 34 ...

Page 39: ...pendix displays the front panel of all switches covered by this guide Figure 27 DCS 7280CR2A 30 DCS 7280CR2K 30 and DCS 7280CR2M 30 1 System status LED 3 Power supply 1 status LED 2 Fan tray status LED 4 Power supply 2 status LED 35 ...

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Page 41: ...n below Depending on the power supply module installed the appearance could be different from the one shown Figure 28 Rear Panel 1 Power Supply Module 1 4 Fan Module 2 7 Fan Module 5 2 Management Ports 5 Fan Module 3 8 Ground 3 Fan Module 1 6 Fan Module 4 9 Power Supply Module 2 37 ...

Page 42: ...38 ...

Page 43: ...re you begin refer to the Arista Networks document Safety Information and Translated Safety Warnings available at https www arista com en support product documentation Note Descriptions for the removal and replacement of power supplies and fans are for a representative power supply or fan Locations of status indicator LEDs may differ Refer to the front and rear panel illustrations of your device t...

Page 44: ...oving an existing one Removing a Power Supply 1 Remove the replacement power supply from its packaging 2 Slide the new power supply into the empty slot 3 Slide the new power supply into the switch until the power supply is fully seated and the release lever snaps into place Installing a Power Supply Figure 30 Install Power Supply 4 Connect the power cord to the power supply 5 Verify the LED s on t...

Page 45: ...itch from overheating Ensure that the module you are replacing matches those already installed in the switch E 3 1 Removing a Fan Module The following steps are required when removing or replacing fans from a switch 1 Ground yourself with an ESD wrist strap 2 Push the fan module release lever and slide the fan module out of the switch Removing a Fan Module Figure 31 Removing Fan Module 1 Release L...

Page 46: ...he module is fully seated and the release lever snaps into place Installing a Fan Module Figure 32 Inserting the Fan Module Note The fan module status LED should be a steady green for normal operation 3 Verify that the fan module is working normally 42 ...

Page 47: ...ry Model Numbers RMNs where applicable for the product models for the switches described in this document Table 10 Regulatory Model Numbers and Product Numbers Regulatory Model Number RMN Product Number s AN1620 DCS 7280CR2A 30 DCS 7280CR2K 30 AN1711 DCS 7280CR2M 30 43 ...

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Page 49: ...endix G Taiwan RoHS Information This appendix provides Taiwan RoHS information for switches covered by this guide For Taiwan BSMI RoHS Table go to https www arista com assets data pdf AristaBSMIRoHS pdf 45 ...

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