Review the following considerations when installing the device.
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.
Note: Saving the switch configuration before replacing a power supply is recommended.
All slots must be filled or covered with a blank for operation (even though the power supply or fans may not be functional).
Note: Refer to your device's (Front Panel) and (Rear Panel) panel illustrations to locate the appropriate LED, the release lever or handle, and the handle for the power supply and fan modules.
Power Supplies
The following steps are required when removing power supplies from a switch.
AC Power Supplies
Removing an AC Power Supply
Ground yourself with an ESD wrist strap.
Turn off the power supply to be removed by disconnecting the AC power cable.
Push the power supply release lever and remove the power supply.
Installing an AC Power Supply
You must make space for installing the power supply by removing an existing one (Removing an AC Power Supply).
Remove the replacement power supply from its packaging.
Slide the new power supply into the empty slot.
Slide the new power supply into the switch until the power supply is fully seated, and the release lever snaps into place.
Connect the power cord to the power supply.
Verify the LED(s) on the power supply.
Note: The Power Supply status LED is a steady green for normal operation.
Verify the new power supply operation by issuing the show environment power command.
switch# show environment power
The command output lists the power supplies in operation and includes the one you replaced.
DC Power Supplies
Note: Select a three-eighth-inch (3/8") hexagon socket wrench for removing the lug nuts.
Removing a DC Power Supply
Before performing any steps, remove power from DC circuits by turning off the power line servicing the circuits.
Note: Make sure to remove the ground connection last when removing power.
Put on a grounded, anti-static ESD strap.
Disconnect the power cable from the DC power source.
Access the terminal studs by lifting the plastic cover.
Remove the flange locking nuts to each of the terminal studs.
Disconnect the power cable lug from the terminal studs.
Use the power supply release lever to unseat and slide out the power supply.
Installing a DC Power Supply
You must make space for installing the power supply by removing an existing one (Removing a DC Power Supply) from a power supply slot available on the switch. Perform the following steps to install a DC power supply.
Put on a grounded ESD strap.
Unbox the new power supply.
Insert the new power supply into the empty power supply slot.
After you insert the power supply, push gently on the power supply until the power supply is fully seated and locked in place.
Connect the DC-input wires to the appropriate terminals using the specified torque (Table 1) in the following order:
Ground wire to the Protective Earth (PE) terminal.
Negative source DC cable to the negative (- / -48V) terminal.
Positive (+) source DC cable to the positive (+ / Rtn) terminal.
Fan Modules
To prevent the switch from overheating, hot-swap fans within 30 seconds. Ensure that the module you are replacing matches those already installed in the switch.
Removing a Fan Module
The following steps are required when removing or replacing fans from a switch.
Ground yourself with an ESD wrist strap.
Push the fan module release lever and slide the fan module out of the switch.
Installing a Fan Module
You must make space for installing the fan module by removing an existing one Removing a Fan Module).
Remove the replacement fan from its packaging.
Slide the new fan module into the switch until the module is fully seated, and the release lever snaps into place.
Verify that the fan module is working normally.
Note: The fan module status LED should be a steady green for normal operation.
Each switch provides an accessory kit containing the parts required to install the switch. This section lists the installation parts contained in the switch accessory kit.
The Parts List section discusses the following topics:
Locate the front panel LEDs on the right side of the chassis, where the LEDs display the system, fan, and power supply status. The front panel LEDs are labeled in Figure 1 for a representative switch.
Figure 1. System Status Indicators
1
25G SFP ports
2
System status LED
3
Fan status LED
4
Power supply 1 status LED
5
Power supply 2 status LED
6
100G QSFP ports
7
5G PoE+ ports
8
2.5G PoE+ ports
Table 1. Switch Indicators LED States (Front)
LED Name
LED State
Device Status
System Status LED
Blinking Green
The system is powering up.
Green
Normal operations. Due to power supply and fan redundancy, this LED will remain green if a single fan or power supply is missing or in a failed state.
Blue
The locater function is active.
Amber
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.
Fan Status LED
Green
All fan and power modules are operating normally.
Amber
Single fan module is removed or malfunctioning. It is also amber when a PSU is completely removed or has a stuck fan rotor.
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.
PSU [1:2] Status LED
Green
PSU is functioning and fully operational. AC is present, Aux output is ON, and Main output is ON.
Off
PSU has been removed or is not operating properly due to the AC cord being unplugged, its fan rotor being stuck, or an internal fault.
Port Indicators
Port LEDs near their corresponding ports provide the link and operational status. Port LEDs display the Port LED location on the DCS-7050QX-32S switch.
Figure 2. Port LEDs
1
Port 1 LEDs
3
Port 3 LEDs
2
Port 2 LEDs
4
Port 4 LEDs
Port LED States (Front) provides status conditions corresponding to port LED states. Port LED behavior for QSFP+ and SFP+ ports is consistent.
Table 2. Port LED States (Front)
LED State
Status
Off
The port link is down.
Green
The port link is up.
Yellow
The port is software disabled.
Flashing Yellow
The port failed diagnostics.
Rear Status Indicators
Access the fan and power supply modules from the rear panel. Each fan and power supply module contains an LED that reports the module status.
Fan Status LEDs are on the fan modules, as displayed in Fan Status LED.
Figure 3. Fan Status LED
1
Fan module status LED
Fan Status LED States (Rear) provide conditions corresponding to fan status LED states.
Table 3. 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.
The AC Power Supply Status LEDs are on the power supply modules, as displayed in the Representative AC Power Supply Status LED (PWR-1021-AC-RED) .
Figure 4. Representative AC Power Supply Status LED (PWR-1021-AC-RED)
1
Power supply status LED
2
Release
3
Handle
AC Power Supply Status LED States (Rear) provides conditions corresponding to the AC power supply status LED states.
Table 4. AC Power Supply Status LED States (Rear)
Power Supply State
PWR-1021-AC-RED
Input power present Normal operation
Green
Input power present Power Supply fault
ON/OFF: ON when PSU output is ON, OFF when PSU Output is OFF
Input power present Power Supply FAN fault
FLASH 800 ms ON / 800 ms OFF
No Input power Supply installed in chassis
OFF
Input power present Supply not installed in chassis
Green
Note: You can narrow 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 underViewing Environment Status, for further information on the show environment commands.
Arista switches ship from the factory in Zero Touch Provisioning (ZTP) mode. ZTP configures the switch without user intervention by downloading a startup configuration file or a boot script from a location specified by a DHCP server. To manually configure a switch, ZTP is bypassed. The initial configuration provides one username (admin) that is accessible only through the console port because it has no password.
When bypassing ZTP, initial switch access requires logging in as admin, with no password, through the console port. Then, you can configure an admin password and other password-protected usernames.
This manual configuration procedure cancels ZTP mode, logs into the switch, assigns a password to theadmin, assigns an IP address to the management port, and defines a default route to a network gateway.
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 be fully
functional after a valid startup-config is
downloaded from a remote system or Zero Touch
Provisioning is canceled. To cancel Zero
Touch Provisioning, log in as an admin and
type 'zerotouch cancel' in the CLI.
localhost login:
Log into the switch by typing admin at the login prompt.
localhost login: admin
Cancel ZTP mode by typing zerotouch cancel.
Important: This step initiates a switch reboot.
localhost> zerotouch cancel
After the switch boots, log into the switch again by typing admin at the login prompt.
Arista EOS
localhost login: admin
Last login: Fri Mar 15 13:17:13 on console
Enter global configuration mode.
localhost> enable
localhost# config
Assign a password to the admin username with the username secret command.
localhost(config)# username admin secret pxq123
Configure a default route to the network gateway.
localhost(config)# ip route 0.0.0.0/0 192.0.2.1
Assign an IP address (192.0.2.8/24 in this example) to an Ethernet management port.
localhost(config)# interface management 1
localhost(config-if-Ma1/1)# ip address 192.0.2.8/24
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, select 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.
After mounting the switch into the rack, connect the switch to the data center ground. Figure 1 display the location of the grounding pads located on the left of the rear panel.
Note:
Grounding wires and grounding lugs (M4 x 0.7) are not supplied. Wire size should meet local and national installation requirements. Commercially available 6 AWG wire is recommended for installations in the US.
À la terre et de mise à la terre fils 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 1. Earth Grounding Pad Sockets
1
Ground
5
Power supply 1 status LED
9
Fan module 3 status LED
2
Fan module 1 handle
6
Power supply 2 status LED
10
Fan module 2 status LED
3
Fan module 2 handle
7
Power supply 2
11
Fan module 1 status LED
4
Fan module 3 handle
8
Power supply 1
12
Ground
Connecting Power Cables
Power cords are optional and must be ordered separately. You must select an approved power cord that is compliant with local and national electrical codes or order one from Arista for use with the device.
Warning:
(Canada Only) - CCS-722XPM-48ZY8 and CCS-722XPM-48Y4 Signal Equipment High Leakage Current
If used in a Signal Equipment application in Canada, to comply with CSA C22.2 NO. 205:17 leakage current requirements, the following applies:
For 100-120V operation, connect each AC power supply to its dedicated branch circuit.
For 200-240V operation, connect each AC power supply to its dedicated branch circuit AND connect the switch to earth (Refer Figure 1).
Warning:
(Canada uniquement) - Courant de fuite élevé de l'équipement de signalisation CCS-722XPM-48ZY8 et CCS-722XPM-48Y4
Si utilisé dans une application d'équipement de signalisation au Canada, les conditions suivantes doivent être respectées pour se conformer aux exigences en matière de courant de fuite de la norme CSA C22.2 no 205:17:
Pour un fonctionnement entre 100 et 120 V, raccordez chaque alimentation électrique CA à son propre circuit de dérivation dédié.
Pour un fonctionnement entre 200 et 240 V, raccordez chaque alimentation électrique CA à son propre circuit de dérivation dédié ET reliez le commutateur à la terre (Figure 1).
Note:
Installation of this equipment must comply with local and national electrical codes. Consult with the appropriate regulatory agencies and inspection authorities to assure compliance.
Installation de cet équipement doit être conformes aux codes électriques locaux et nationaux. Si nécessaire, consulter les organismes de réglementation appropriés et des autorités de contrôle pour assurer la conformité.
The switch operates with two installed power supplies. At least one power supply must connect to a power source. Two circuits provide redundancy protection. The Rear Panel displays the location of the power supplies on the switch's rear panel.
Note:
Read all installation instructions before connecting the system to the power source.
Lire toutes les instructions d’installation avant de brancher le système à la source d’alimentation.
Non-Redundant Configuration: Connect power to either of the two power supplies.
Redundant Power Supply Configuration: Connect power to both power supplies.
Turn off the Switch: Remove all power cords and wires from the power supplies.
Note:
This equipment must be grounded. Never defeat the ground conductor.
This unit requires overcurrent protection.
Cet équipement doit être mis à la terre. Ne jamais modifier le conducteur de terre.
Cet appareil requiert une protection contre les surintensités.
AC Power Supplies
The following AC power supplies are supported.
PWR-621-AC-RED
PWR-621-AC-BLUE
PWR-1021-AC-RED
Figure 2 displays an AC power supply, including the power connector (C16), on the right side of the module. The AC power supply connects to a circuit that provides the required power, as specified by Specifications.
Figure 2. AC Power Supply (PWR-1021-AC-RED)
1
Power supply status LED
2
Release
3
Handle
The power supplies have a C16 connector and require cables that comply with IEC-320.
A disconnect device must be provided as part of the installation.
Assure power is removed from DC circuits before performing any installation actions. Locate the disconnect device, circuit breakers, or fuses on DC power lines servicing the circuits. Turn off the power line circuits or remove the fuses.
Wire size must comply with local and national requirements and electrical codes. Use only copper wire.
Apply ground connection to the switch first during installation and remove last when removing power.
Un dispositif de sectionnement doit être fourni dans le cadre de l'installation.
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.
Le calibre du fil doit être conforme aux exigences locales et nationales et les codes électriques. Utiliser du fil de cuivre.
Appliquer connexion à la terre à l'interrupteur premier lors de l'installation et de supprimer la dernière alimentation lors du débranchement.
Wire and Lug Preparation
Before installing, remove power from DC circuits by turning off the power line servicing the circuits. Prepare the stranded wiring before you begin a DC power installation.
Note: Stranded copper wiring is required and should meet local and national installation requirements. Wires and grounding lugs are not supplied.
Attach an ESD grounding strap.
Prepare the stranded copper wiring for the power supply to be used. Table 1 provide wiring, lug, and tightening torque information for the power supplies covered in this guide.
Table 1. Wiring, Lug, and Tightening Torques for DC PSU
PSU
Wire Size(1)
Lug Type(1)
Tightening Torque
(AWG)
(mm2)
Nm
in lbs.
PWR-721-DC-RED
10 - 12
6.0 - 4.0
Twin #10 studs spaced for dual-hole lug with 5/8" hole spacing.
2.7
24
1. Unless otherwise noted, applies to -48V, battery return, and protective earth wires.
Strip the wires to the appropriate length for the lugs to be used.
Select agency-approved compression (pressure) lugs for wiring terminations.
Slip on heat-shrink tubing on the wire ends before assembling the lugs onto the wire.
Crimp the lugs with the proper tool, and assure that the tubing extends over the barrel of the lugs and the insulation on the wires (Figure 4).
Attach the appropriate lugs to the source DC wires.
Connect the DC-input wires to the appropriate terminals using the specified torque (Table 1) in the following order.
Note: Remove terminal covers as needed.
Ground wire to the Protective Earth (PE) terminal.
Negative source DC cable to the negative (- / -48V) terminal.
Positive (+) source DC cable to the positive (+ / Rtn) terminal.
Note:
Assure power is removed from DC circuits before performing any installation actions. Locate circuit breakers or fuses on DC power lines servicing the circuits. Turn off the power line circuits or remove the fuses.
Wire size must comply with local and national requirements and electrical codes. Use only copper wire.
Apply the ground connection first during installation and remove it last when removing power.
Assurez-vous de pouvoir retirer des circuits en courant continu avant d’effectuer toute action d’installation.Localiser les disjoncteurs ou fusibles sur les lignes électriques DC entretien des circuits. Mettez hors tension le circuit ligne ou retirer les fusibles.
Calibre doit respecter les exigences locales et nationales et les codes de l’électricité. Utiliser seulement du fil de cuivre.
Appliquer le motif connexion tout d’abord pendant l’installation et supprimer dernière lors du retrait de puissance.
Replace the terminal covers as required.
Connecting Serial and Management Cables
The accessory kit includes the following cables:
RJ-45 to DB-9 serial adapter cable.
RJ-45 Ethernet cable.
Table 2 lists the pin connections of the RJ-45 to DB-9 adapter cable.
Table 2. 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
33
2
RXD
DSR
7
4
DTR
GND
4
5
GND
CTS
8
7
RTS
Note: RJ-45 to DB-9 connections: For the console management port on the rear panel, RJ-45 pin 1 (RTS) is connected to RJ-45 pin 8 (CTS); RJ-45 pin 2 (DTR) and RJ-45 pin 7 (DSR) are not electrically connected to any signal.
Figure 5 displays management ports on the rear panel of the CCS PoE switches. The Front Panel and Rear Panel display all switches' front and rear panels, which this guide covers.
Figure 5. Rear Panel Management Ports
1
Speed status LED
4
Activity status LED
3
Ethernet management port
4
USB port
5
Serial console port
Connect management ports as follows:
Console (Serial) Port: Connect to a PC with the RJ-45 to DB-9 serial adapter cable. The switch uses the following default settings:
9600 baud
No flow 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.
Note:
Excessive bending can damage interface cables, especially optical cables.
Flexion excessive peut endommager les câbles d’interface, notamment des câbles optiques.
Note: The rack mounting procedure is identical for all switches this guide covers. Illustrations in this chapter depict the mounting of a DCS-7010T-48 switch.
Les procédure de montage du bâti est identique pour tous les commutateurs visés par ce guide. Illustrations dans ce chapitre montrent le montage d’un interrupteur de DCS-7010T-48.
Note: Illustrations use a representative Arista switch. Your device may be differ in appearance.
Two-Post Rack Mount
This section provides instructions for mounting the switch in a two-post rack.
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 parts:
2x mounting brackets
6x M4x5 flat head Phillips screws.
The following image displays the proper bracket placement for the rack mount.
Figure 1. Bracket Mount Placement for Rack Mount
Attaching Mounting Brackets to the Chassis
This section discusses the steps to attach mounting brackets to the chassis.
The following figure displays the front bracket alignment for mounting the switch into a four-post rack.
Figure 2. Attaching the Mounting Brackets to the Switch Chassis
1
Attaching brackets for the front mount
Align the mounting brackets with the attachment pins to obtain the desired mounting position.
Place the bracket flush on the chassis with attachment pins protruding through key openings.
Slide the bracket towards the front flange until the bracket clip locks with an audible click.
To remove the mounting bracket from the chassis, lift the front edge of the mounting bracket clip with a flathead screwdriver and slide the bracket away from the front flange (opposite from the installation direction).
Inserting the Switch into the Rack
This section describes the steps to insert the switch into the rack.
Lift the chassis, with the brackets attached, into the rack.
Position the flanges against rack posts.
Select mounting screws that fit your equipment rack.
