Cabling the Switch

The Cabling the Switch section discusses the following topics:

Grounding the Switch

This section discusses the importance of grounding the device to the data center ground.

Normally, the functional grounding of the switch is achieved through the input connection. If you would like to do additional grounding, proceed to the following instructions:

 

Figure 1. Grounding the Switch
1 Screw M4 (with washer) 2 Solder terminal lug 3 Grounding point

 

 

Note: Grounding wires and grounding lugs are not supplied with the product. The wire size should meet local and national installation requirements.

 

 

CAUTION: The grounding connection must only be removed if all supply connections are disconnected.

 

  1. Ensure the rack is properly grounded and complies with ETSI ETS 300 253.
  2. Verify a good electrical connection to the grounding point on the rack (no paint or isolating surface treatment).
  3. Attach the solder terminal lug to an 18 AWG minimum grounding wire and connect it to the grounding point on the rear panel of the switch.
  4. Tighten the M4 screw to secure the lug to the grounding point.
  5. Connect the other end of the wire to the nearby grounded surface.
     

Grounding Lug Preparation

The following procedure connects the chassis to the data center ground:

  1. Prepare the (stranded) copper wiring for the ground wire.
  2. Use agency-approved compression (pressure) lugs for wiring terminations.
  3. Slip on heat-shrink tubing on the wire end before assembling the lugs on to the wire.
  4. Crimp the lugs with the proper tool, and ensure that the tubing extends over the barrel of the lug and the insulation on the wire as shown in the following figure.

     

    Figure 2. Lug Preparation

    1 Insulated wire 2 Heat-shrink tubing 3 Lug (all three terminals)
    A ¼" B ½" C ⅝"

     

  5. Shrink the tubing with a heat gun.

Connecting Power Cables

This section discusses the installation requirements for connecting the power cables to the device.

Important:

  • Installation of this equipment must comply with local and national electrical codes. Consult with the appropriate regulatory agencies and inspection authorities to assure compliance if necessary.

     

    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.

     

  • 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.

     

  • 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.

     

  • This unit requires overcurrent protection.

     

    Cet appareil requiert une protection contre les surintensités.

     

Connecting AC Power

This section discusses how to connect the AC power supply to the device.

The AC power supplies are internal to each switch.

Power requirements vary by switch. Refer to the Specifications section for information regarding your specific device.

Rear Panel section displays the location of the power supplies for a specific device.

Power Configurations

  • Non-redundant: Connect power to either of the two power supplies.
  • Redundant: Connect each AC power supply to a circuit that provides the required power.

     

 

Note: Remove all power cords and wires from the power supplies to power down the switch. Input power and power supply redundancy is dependent on the actual system power draw.

Each power supply should be connected to its own input overcurrent protection for maximum input power redundancy.

 

Use power supply cables that comply with IEC-320 and have a C13 plug.

Connecting DC Power

This section discusses how to connect the DC power supply to the device.

The DC power supplies areinternal to each switch.

Power requirements vary by switch. Refer to the Specifications section for information regarding your specific device.

Rear Panel section displays the location of the power supplies for the specific device. There is a cover over the DC supply terminals.

 

Important:

  • A disconnect device must be provided as part of the installation.

     

    Un dispositif de sectionnement doit être fourni dans le cadre de l'installation.

     

  • Ensure 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.

     

    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.

     

  • Wire size must comply with local and national requirements and electrical codes. Use only copper wire.

     

    Le calibre du fil doit être conforme aux exigences locales et nationales et les codes électriques. Utiliser du fil de cuivre.

     

  • Apply the grounding connection prior to installation and remove it after disconnecting the power.

     

    Appliquer connexion à la terre à l'interrupteur premier lors de l'installation et de supprimer la dernière alimentation lors du débranchement.

     

Power Configurations

  • Non-redundant: Connect power to either of the two power supplies.
  • Redundant: Connect each DC power supply to a circuit that provides the required power.

     

Connecting DC Power Supply to Power Source

This section discusses connecting the DC power supply to the power source.

Important:

  • Wire size must comply with local and national requirements and electrical codes. Use only copper wire.

     

    Calibre doit respecter les exigences locales et nationales et les codes de l’électricité. Utiliser seulement du fil de cuivre.

     

  • Apply the ground connection prior to installation and remove it after disconnecting the power.

     

    Appliquer le motif connexion tout d’abord pendant l’installation et supprimer dernière lors du retrait de puissance.

     

To connect a DC power supply to the power source, follow the steps below:
  1. Remove the terminal cover to expose the connectors on the terminal block on the face.
  2. Attach the appropriate lugs to the source DC wires.

    Use DC cables with insulated crimp-on spade lugs or crimp-on ring connectors.

  3. Connect the DC-input wires to the terminal block in this order:
    1. Ground cable to the ground connector on the terminal block.
    2. Negative (–) source DC cable to the negative (–) connector on the terminal block.
    3. Positive (+) source DC cable to the positive (+) connector on the terminal block.
    4. Torque the screws as specified in the following table.
      Table 1. Wiring, Lug, and Tightening Torques for DC PSUs
      Wire Size Lug Type Tightening Torque
      AWG mm2 N.m lbs
      14 to 18 1.5 to 0.75 ring 0.8 7.0

       

  4. Replace the terminal cover.

Connecting Serial and Management Cables

This section discusses the type of cables required to connect the device.

The accessory kit includes the following cables:

  • RJ-45 to DB-9 serial adapter cable
  • RJ-45 Ethernet cable

     

The following RJ-45 to DB-9 table 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 3 2 RXD DSR 7 4 DTR
GND 4 5 GND CTS 8 7 RTS

 

Figure 3. Front Panel Ports
1 Ethernet Management Port 2 USB Port 3 Console Serial Port

 

Connect the front panel ports as described below:

  • Console (Serial) Port: Connect to a computer 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.

     

    Important:

    Excessive bending can damage interface cables, especially optical cables.

     

    Flexion excessive peut endommager les câbles d'interface, notamment des câbles optiques.

     

Rack Mounting the Switch

This section provides instructions on how to rack mount the switch.

This section discusses the following topic:

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. It includes:

Attaching Mounting Brackets to the Chassis

This section describes the steps to attach mounting brackets to the switch chassis.

 

Figure 1. Attaching the Mounting Brackets
1 Flat head screw M4x6mm 2 L-bracket (MTL-01066)

 

 

Figure 2. Attaching the Mounting Brackets (CCS-720DF-48Y-DC)

 

Note: The Extended L-bracket shown in the following image is provided only for the CCS-720DF-48Y-DC model. If required, it can be ordered separately.

 

 

1

Flat head screw M4x6mm

 2 Extended L-bracket (MTL-05776)

 

 

Note: For more information regarding the screw size, refer to Screw Size Details.

 

  1. Position the L-bracket or Extended L-bracket (flush, 1.5" offset, or 2.5" offset) by aligning with the chassis holes on both sides of the switch and fixing it with M4x6mm flat head screws.
  2. Secure the mounting brackets firmly to the switch.
     

Inserting the Switch into the Rack

This section describes the steps to insert the switch into the rack.

 

Figure 3. Inserting the Switch into the Rack
1 Screw M4x25mm (not included in the kit) 2 Two-post rack

 

 

Figure 4. Inserting the Switch into the Rack (CCS-720DF-48Y-DC)

 

Note: The Extended L-bracket shown in the following image is provided only for the CCS-720DF-48Y-DC model. If required, it can also be ordered separately.

 

 

1 Screw M4x25mm (not included in the kit) 2 Two-post rack

 

 

Note: For more information regarding the screw size, refer to Screw Size Details.

 

 

Note:
  • Lift the chassis, attached with L-brackets, into the rack.
  • Place the switch into the rack by aligning it with the mounting bracket.
  • Position the flanges against the rack posts, as shown in the earlier figure.
  • Attach the bracket flanges to the rack posts.

 

Preparation

This section discusses the initial set up and preparation for installing the switch.

Site Selection

Consider the following criteria when selecting a site to install the switch:

  • Temperature and Ventilation: For proper ventilation, install the switch with ample airflow to the front and back of the switch.

     

    Important:

    To prevent the switch from overheating, do not operate it in an area where the ambient temperature exceeds 40°C (104°F).

     

    Pour empêcher l'interrupteur de surchauffe, ne pas utiliser il dans une zone où la température ambiante est supérieure à 40°C (104°F).

     

     

     

  • Airflow Orientation: The fans and PSUs determine the airflow direction through the switch. The color of the visible handles or labels indicates the airflow direction.

    Orient the switch so that airflow flows from the cooler to the hotter aisle. If the airflow direction is not compatible with the installation site, reorient the fan modules to circulate air in the opposite direction.

     

  • Rack Space: Install the switch in a 19" rack or cabinet. The switch height is 1 RU. The accessory kit provides mounting brackets for two-post racks.

    When mounting the switch in a partially filled rack, load the rack from bottom to top, with the heaviest equipment at the bottom. Load the switch at the bottom if it is the only item in the rack.

     

  • Power Requirements: Power requirements vary by switch and power supply model. Refer to Specifications for information regarding your specific device.

     

    Important:

    The power input plug-socket combination must be always accessible; it provides the primary method of disconnecting power from the system.

     

    La combinaison de la puissance-prise d'entrée doit être accessible en tout temps; Il fournit le principal moyen de coupure d'alimentation du système.

     

     

    Important:

    All power connections must be removed to de-energize the unit.

     

    Toutes les connexions d'alimentation doivent être enlevées pour hors tension l'appareil.

     

     

  • Other Requirements: Select a site where liquids or objects cannot fall onto the equipment and foreign objects are not drawn into the ventilation holes. Verify that the following guidelines are met:

    • Clearance areas to the front and rear panels allow for unrestricted cabling.

    • All front and rear panel indicators are visualizable.

    • Power cords can reach from the power outlet to the connector on the rear panel.

Tools and Parts Required for Installation

Each device has an accessory kit containing the parts required to install the switch. In addition to the accessory kit, the following tools and equipment are required to install the switch:

Two-Post Rack

  • #1 and #3 Phillips head screwdrivers (this may differ based on supplied accessories).

  • Screws or rack mounting nuts and bolts.

     

The accessory kit does not include screws for attaching the switch to the equipment rack. When installing the switch into an equipment rack with unthreaded post holes, nuts are also required to secure the switch to the rack posts.

Electrostatic Discharge (ESD) Precautions

Observe these guidelines to avoid ESD damage when installing or servicing the switch.

  • Assemble or disassemble equipment only in a static-free work area.

  • A conductive work surface (such as an anti-static mat) dissipates static charge.

  • Wear a conductive wrist strap to dissipate static 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.

  • Select tools that do not create ESD.

Overview

This guide is for network or security professionals and technicians who need to install the required Arista 720D Series Ethernet Switch.

This section discusses the following topics:

Scope

This section lists the devices this guide covers.

 

Important:

Only qualified personnel should install, service, or replace this equipment.

 

Seul le personnel qualifié doit installer, service, ou remplacer cet équipement.

 

 

CCS-720DP-48S-2F CCS-720DP-48S-M-S-2F
CCS-720DP-24S-2F CCS-720DP-24S-M-S-2F
CCS-720DT-48S-2F CCS-720DT-48S-2R
CCS-720DT-24S-2F CCS-720DT-24S-M-S-2F
CCS-720DT-24S-2R CCS-720DF-48Y-2F
CCS-720DF-48Y-M-S-2F CCS-720DF-48Y-DC-2F
CCS-720DP-24ZS-2F CCS-720DP-48ZS-2F

Receiving and Inspecting the Equipment

 

Upon receiving the device, inspect the shipping boxes and record if there is any external damage. Retain the packing equipment if you suspect any part of the shipment is damaged; the carrier might need it inspected.

If the boxes were not damaged during transit, unpack them carefully. Do not discard any accessories that have been packed in the same box as the switch.

Inspect the packing list and confirm that you received all the items listed. Compare the packing list with your purchase order. The Parts List section provides a list of components included with the device.

Installation Process

This section discusses the steps required to install the switch:

Important:

Class 1 Laser Product: This product has provisions for installing Class 1 laser transceivers that provide optical coupling to the communication network. Once a Class 1 1 laser product is installed, the equipment is a Class 1 Laser Product. The customer is responsible for selecting and installing the Class 1 laser transceiver and for ensuring that the Class 1 AEL (Allowable Emission Limit) per EN/IEC 60825, CSA E60825-1, and Code of Federal Regulations 21 CFR 1040 is not exceeded after the laser transceiver have been installed. Do not install laser products whose class rating is greater than 1. Refer to all safety instructions that accompany the transceiver before installation. Only Class 1 laser devices certified for use in the country of installation by the cognizant agency are to be utilized in this product.

 

Produit Laser de classe 1: Ce produit a des dispositions pour installer des émetteursrécepteurs de laser de classe 1 qui offre de couplage au réseau de communication optique.Une fois un produit laser de classe 1 est installé, l'équipement est un produit Laser de classe 1 (Appareil à Laser de Classe 1).Le client est responsable pour sélectionner et installer l'émetteur/récepteur de laser de classe 1 et pour assurer que la classe 1 AEL (limite d'émission admissible) par EN/IEC 60825, CSA E60825-1, et Code des règlements fédéraux 21 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 utilisées dans ce produit.

 

 

Important:

Ultimate disposal of this product should be in accordance with national laws and regulations.

 

Aucune pièce réparable par l'utilisateur à l'intérieur. Confiez toute réparation à un technicien qualifié.

 

The following steps are to be followed to install the switch:

  1. Select the installation site. (Site Selection)
  2. Assemble the installation tools listed. (Tools and Parts Required for Installation)
  3. Attach the mounting brackets and install the switch in an equipment rack. (Rack Mounting the Switch)
  4. Connect the switch to the power source and network devices. (Cabling the Switch)
  5. Configure the switch. (Configuring the Switch)

Obtaining Technical Assistance

Any customer, partner, reseller, or distributor holding a valid Arista Service Contract can obtain technical support in any of the following ways:

  • Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

    Include a detailed description of the problem and the “show tech-support” output.

     

  • Web: https://www.arista.com/en/support

    You can create a support case through the support portal on our website. You may also download the most recent software and documentation, and view FAQs, Knowledge Base articles, Security Advisories, and Field Notices.

     

  • Phone: +1 866-476-0000 or +1 408-547-5502.

     

Specifications

This section lists the specifications of the Arista Ethernet Switches described in this guide.

 

Table 1. Ethernet Switch Specifications (Dimensions and Weights)
Device Size (W x H x D) Weight
CCS-720DP-48S-2F 440 x 43.5 x 430 mm

(17.32 x 1.71 x 16.92 inches)

 6.73 kg

(14.83 lbs)
CCS-720DP-24S-2F 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 5.81 kg

(12.80 lbs)
CCS-720DT-48S-2F 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 4.638 kg

(10.22 lbs)
CCS-720DT-48S-2R 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 4.638 kg

(10.22 lbs)
CCS-720DT-24S-2F 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 4.356 kg

(9.60 lbs)
CCS-720DT-24S-2R 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 4.356 kg

(9.60 lbs)
CCS-720DF-48Y-2F 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 4.8 kg

(10.58 lbs)
CCS-720DF-48Y-DC-2F 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 4.77 kg

(10.51 lbs)
CCS-720DP-24ZS-2F 440 x 43.5 x 430 mm

(17.32 x 1.71 x 16.92 inches)

 6.6 kg

(14.55 lbs)
CCS-720DP-48ZS-2F 440 x 43.5 x 430 mm

(17.32 x 1.71 x 16.92 inches)

 8 kg

(17.63 lbs)
CCS-720DF-48Y-M-S-2F 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 4.5 kg

(9.92 lbs)
CCS-720DP-48S-M-S-2F 440 x 43.5 x 430 mm

(17.32 x 1.71 x 16.92 inches)

 6.73 kg

(14.83 lbs)
CCS-720DP-24S-M-S-2F 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 5.81 kg

(12.80 lbs)
CCS-720DT-24S-M-S-2F 440 x 43.5 x 330 mm

(17.32 x 1.71 x 12.99 inches)

 4.356 kg

(9.60 lbs)

 

 

Table 2. Ethernet Switch Specifications (Operational and Storage)
Device Operating Temperature Storage Temperature Operating Altitude Relative Humidity
CCS-720DP-48S 0 to 40°C

(32° to 104°F)

 -25 to 70°C

(-13 to 158F)

 0 to 3,000 meters

(0 to 10,000 feet)

 5 to 90%

(non-condensing)
CCS-720DT-48S 0 to 40°C

(32° to 104°F)

 -25 to 70°C

(-13 to 158F)

 0 to 3,000 meters

(0 to 10,000 feet)

 5 to 90%

(non-condensing)
CCS-720DP-24S 0 to 40°C

(32° to 104°F)

 -25 to 70°C

(-13 to 158F)

 0 to 3,000 meters

(0 to 10,000 feet)

5 to 90%

(non-condensing)
CCS-720DT-24S 0 to 40°C

(32° to 104°F)

 -25 to 70°C

(-13 to 158F)

 0 to 3,000 meters

(0 to 10,000 feet)

 5 to 90%

(non-condensing)
CCS-720DF-48Y 0 to 40°C

(32° to 104°F)

 -25 to 70°C

(-13 to 158F)

 0 to 3,000 meters

(0 to 10,000 feet)

 5 to 90%

(non-condensing)
CCS-720DF-48Y-DC 0 to 40°C

(32° to 104°F)

 -25 to 70°C

(-13 to 158F)

 0 to 3,000 meters

(0 to 10,000 feet)

 5 to 90%

(non-condensing)
CCS-720DP-24ZS 0 to 40°C

(32° to 104°F)

 -25 to 70°C

(-13 to 158F)

 0 to 3,000 meters

(0 to 10,000 feet)

 5 to 90%

(non-condensing)
CCS-720DP-48ZS 0 to 40°C

(32° to 104°F)

 -25 to 70°C

(-13 to 158F)

 0 to 3,000 meters

(0 to 10,000 feet)

 5 to 90%

(non-condensing)

 

 

Table 3. Ethernet Switch Specifications (Power Ratings)
Device Input Power Rating
CCS-720DP-48S-2F 100 - 240V~, 10 - 5A, 50/60 Hz
CCS-720DP-48S-M-S-2F 100 - 240V~, 10 - 5A, 50/60 Hz
CCS-720DP-24S-2F 100 - 240V~, 6 - 3A, 50/60 Hz
CCS-720DP-24S-M-S-2F 100 - 240V~, 6 - 3A, 50/60 Hz
CCS-720DT-48S-2F 100 - 240V~, 1.2-0.6A, 50/60 Hz
CCS-720DT-48S-2R 100 - 240V~, 1.2-0.6A, 50/60 Hz
CCS-720DT-24S-2F 100 - 240V~, 1-0.5A, 50/60 Hz
CCS-720DT-24S-M-S-2F 100 - 240V~, 1-0.5A, 50/60 Hz
CCS-720DT-24S-2R 100 - 240V~, 1-0.5A, 50/60 Hz
CCS-720DF-48Y-2F 100 - 240V~, 2.2-1.1A, 50/60 Hz
CCS-720DF-48Y-M-S-2F 100 - 240V~, 2.2-1.1A, 50/60 Hz
CCS-720DF-48Y-DC-2F -48 to -60VDC, 4.5-3.6A
CCS-720DP-24ZS-2F 100 - 240V~, 10-5A, 50/60 Hz
CCS-720DP-48ZS-2F 100 - 240V~, 10A, 50/60 Hz

 

 

Table 4. Ethernet Switch Specifications (PoE Power Budget)
Device PoE Power Budget
CCS-720DP-48S 745W
CCS-720DT-48S N/A
CCS-720DP-24S 380W
CCS-720DT-24S N/A
CCS-720DF-48Y N/A
CCS-720DF-48Y-DC N/A
CCS-720DP-24ZS 730W
CCS-720DP-48ZS 120V: 2x700W

240V: 2x1440W
CCS-720DP-48ZS 120V: 700W

240V: 1500W

 

 

Table 5. Ethernet Switch Specifications (System Configurations)
Device PoE Ports Downlink Ports Uplink Ports Airflow Power Supply Fan
CCS-720DP-48S-2F 30W 48x1G RJ45 4x10G SFP+ Front to rear 2 4
CCS-720DP-48S-M-S-2F 30W 48x1G RJ45 4x10G SFP+ Front to rear 2 4
CCS-720DP-24S-2F 30W 24x1G RJ45 4x10G SFP+ Front to rear 2 3
CCS-720DP-24S-M-S-2F 30W 24x1G RJ45 4x10G SFP+ Front to rear 2 3
CCS-720DT-48S-2F N/A 48x1G RJ45 4x10G SFP+ Front to rear 2 2
CCS-720DT-48S-2R N/A 48x1G RJ45 4x10G SFP+ Rear to Front 2 2
CCS-720DT-24S-2F N/A 24x1G RJ45 4x10G SFP+ Front to rear 2 2
CCS-720DT-24S-M-S-2F N/A 24x1G RJ45 4x10G SFP+ Front to rear 2 2
CCS-720DT-24S-2R N/A 24x1G RJ45 4x10G SFP+ Rear to front 2 2
CCS-720DF-48Y-2F N/A 48x1G SFP 4x25G SFP28 Front to rear 2 3
CCS-720DF-48Y-M-S-2F N/A 48x1G SFP 4x25G SFP28 Front to rear 2 3
CCS-720DF-48Y-DC-2F N/A 48x1G SFP 4x25G SFP28 Front to rear 2 3
CCS-720DP-24ZS-2F 60W 24x2.5G RJ45 4x10G SFP+ Front to rear 2 4
CCS-720DP-48ZS-2F 60W 48x2.5G RJ45 4x10G SFP+ Front to rear 2 4

 

Quick Start Guide
720D Series
Ethernet Switch
Arista Networks

www.arista.com

DOC-05297-09

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