7300 ARISTA | Alldatasheet
Document overview
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- PDF pages: 66
Technical content
Datasheet sections
- 1.1 Scope
- 1.2 Receiving and Inspecting the Equipment
- 1.3 Installation Process
- 1.4 Safety Information
- 1.5 Obtaining Technical Assistance
- 1.6 Specifications
- 2.1 Site Selection
- 2.2 Tools Required for Installation
- 2.3 Electrostatic Discharge (ESD) Precautions
- 3.1 Two-Post Rack Mount
- 3.1.1 Attaching Mounting Brackets to the Chassis
- 3.1.2 Inserting the Switch into the Rack
- 3.2 Four-Post Rack Mount
- 3.2.1 Component Description
- 3.2.2 Component Placement
- 3.2.3 Switch Mounting Process
- 4.1 Cabling the AC Power Supply
- 4.1.1 Grounding the Switch
- 4.1.2 Connecting Power Cables to an AC Power Supply
- 4.2 Cabling the DC Power Supply
- 4.2.1 DC Power Supplies
- 4.2.2 Wire and Lug Preparation
- 4.2.3 PWR-3K-DC-Blue Power Supply
- 4.3 DC Power Adapter Installation for PWR-2700-DC-R
- 4.3.1 Connecting the Power Cable Lug to the Terminal Studs
- 4.3.2 Connecting the Ground to PWR-2700-DC-R Power Supply
- 5.1 Connecting Supervisor Cables
- 5.2 Connecting Linecard Modules and Cables
7300 Series
Modular Data Center Switches Arista Networks www.arista.com PDOC-00040-16
1.1 Scope
This guide is intended for properly trained service personnel and technicians who need to install Arista Networks Data Center Switches. This guide is intended for the following Arista Networks Data Center Switches: DCS-7304 DCS-7304X3 DCS-7308 DCS-7308X3 DCS-7316 DCS-7324 DCS-7328 Important: Only qualified personnel should install, service, or replace this equipment. Seul le personnel qualifié doit installer, service, ou remplacer cet équipement.
1.2 Receiving and Inspecting the Equipment
Upon receiving the switch, inspect the shipping boxes and record any external damage. Retain packing 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 provides a list of components included with the switch.
1.3 Installation Process
The following tasks are required to install and use the switch: 1. Select and prepare the installation site (Site Selection). 2. Assemble the installation tools listed (Tools Required for Installation). 3. Attach the mounting brackets and install the switch in an equipment rack (Two-Post Rack Mount ). 4. Connect the switch to the power source and network devices ( Powering the Modular Switch and Connecting Serial and Management Cables). 5. Configure the switch (Configuring the Switch). Important: Class 1 Laser Product: This product has provisions to install Class 1 laser transceivers that provides optical coupling to the communication network. Once a Class 1 laser product is installed, the equipment is a Class 1 Laser Product (Appareil à Laser de Classe 1). The customer is responsible for selecting and installing the Class 1 laser transceiver and for insuring that the Class 1 AEL (Allowable Emission Limit) per EN/IEC
6-825, 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 accompanied the transceiver prior to 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 émetteurs- récepteurs 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 must be handled in accordance with all national laws and regulations. Aucune pièce réparable par l'utilisateur à l'intérieur. Confiez toute réparation à un technicien qualifié. The fabric module requires special handling when removing, inserting, or handling the component. Fabric and Fan-only Module Description provides instructions for handing fabric modules.
1.4 Safety Information
Refer to the Arista Networks document Safety Information and Translated Safety Warnings available at: https://www.arista.com/en/support/product-documentation.
1.5 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: http://support@arista.com. This is the easiest way to create a new service request. Include a detailed description of the problem and the output of “show tech-support”.
- Web: https://www.arista.com/en/support. A support case may be created through the support portal on our website. You may also download the most current software and documentation, as well as view FAQs, Knowledge Base articles, Security Advisories, and Field Notices.
- Phone: +1 866-476-0000 or +1 408-547-5502. Note: No user serviceable parts inside. Refer all servicing to qualified service personnel. Aucune pièce réparable par l'utilisateur à l'intérieur. Confiez toute réparation à un technicien qualifié.
1.6 Specifications
Table 1: 7300 Modular Switch and Component Specifications lists specifications of Arista Data Center modular switches and components covered by this guide. Table 1: 7300 Modular Switch and Component Specifications DCS-7304/7324/7304X3 DCS-7308/7328/7308X3 DCS-7316 Height 8 RU: 353mm (13.9 inches) 13 RU: 572 mm (22.5 inches) 21 RU: 930 mm (36.6 inches) Width 442 mm (17.4 inches) 442 mm (17.4 inches) 442 mm (17.4 inches) Depth 602 mm (23.7 inches) 602 mm (23.7 inches) 706 mm (27.8 inches) Weight Empty 36 kg (78 lbs) 50 kg (110 lbs) 81 kg (178 lbs) Fully Loaded 89 kg (196 lbs) 140 kg (309 lbs) 244 kg (536 lbs) Input Power (per circuit) AC Power 200 - 240 VAC, 16 A (20 A US), 50 or 60 Hz 200 - 240 VAC, 16 A (20 A US), 50 or 60 Hz 200 - 240 VAC, 16 A (20 A US), 50 or 60 Hz DC Power -48 - -60 VDC, 80 A -48 - -60 VDC, 80 A -48 - -60 VDC, 80 A Branch Circuit Protection AC Power 20 A 20 A 20 A DC Power 100 A 100 A 100 A Input Power Circuits 1 to 4 circuits 2 to 6 circuits 3 to 8 circuits Operating Temperature 0° to 40°C (32° to 104°F)0° to 40°C (32° to 104°F)0° to 40°C (32° to 104°F) Storage Temperature 158°F) 158°F) 158°F) Operating Altitude 0 to 3,000 meters (0 to 10,000 feet) 0 to 3,000 meters (0 to 10,000 feet) 0 to 3,000 meters (0 to 10,000 feet) Relative Humidity 5 to 90% 5 to 90% 5 to 90% Cooling 6000 W maximum 9000 W maximum 12000 W maximum Table 2: 7300 Series Power Specifications lists power specifications of modular switch components. Table 2: 7300 Series Power Specifications Module Type Part Number Power Draw Typical / Maximum Supervisor Modules DCS-7300(-D)-SUP 65 W / 80 W
Linecard Modules DCS-7300X-32Q-LC DCS-7300X-64S-LC DCS-7300X-64T-LC DCS-7320X-32C-LC DCS-7300X3-32C-LC DCS-7300X3-48YC4-LC
219 W / 372 W
166 W / 232 W
279 W / 430 W
428 W / 516 W
284 W / 491 W
193 W / 228 W
Fabric Modules DCS-7304X-FM DCS-7308X-FM DCS-7316X-FM DCS-7324X-FM DCS-7328X-FM DCS-7304X3-FM DCS-7308X3-FM
98 W / 172 W
195 W / 343 W
550 W / 760 W
Fan-Only Modules DCS-7304-S-FAN DCS-7308-S-FAN
16 W / 32 W
32 W / 64 W
Power Supplies PWR-2700-DC (fan power PWR-3K-AC (fan power) PWR-3KT-AC (fan power) PWR-3K-DC (fan power)
43 W/ 43 W
7304 Series System Full chassis loaded with four
DCS-7300X-64T-LC line cards
1573 W / 3048 W
7308 Series System Full chassis loaded with eight
DCS-7300X-64T-LC line cards
3077 W / 4972 W
7316 Series System Full chassis loaded with
DCS-7300X-64T-LC line cards
6729 W / 10080 W
7324X Series System Full chassis loaded with four DCS-7320X-32C-LC line cards
2545 W / 3376 W
7328X Series System Full chassis loaded with eight DCS-7320X-32C-LC line cards
5009 W / 6600 W
7304X3 Series System Full chassis loaded with four DCS-7300X3-32C-LC line cards
1885 W / 3078 W
7308X3 Series System Full chassis loaded with eight DCS-7300X3-32C-LC line cards
4005 W / 6490 W
Table 3: 7300X Series lists 7300X Series switch components. Table 3: 7300X Series Chassis Model Fabric Module Fan-only Module Fan Spare Line Card Power Supply DCS-7304 (Forward) DCS-7304X- FM-F DCS-7304-S- FAN-F FAN-7002-F DCS-7300X- 32Q-LC DCS-7300X- 64S-LC DCS-7300X- 64T-LC PWR-3K-AC- F PWR-2700- DC-F DCS-7304 (Reverse) DCS-7304X- FM-R DCS-7304-S- FAN-R FAN-7002-R DCS-7300X- 32Q-LC DCS-7300X- 64S-LC DCS-7300X- 64T-LC PWR-3K-AC- R PWR-2700- DC-R DCS-7308 (Forward) DCS-7308X- FM-F DCS-7308-S- FAN-F FAN-7002-F DCS-7300X- 32Q-LC DCS-7300X -64S-LC DCS-7300X- 64T-LC PWR-3K-AC- F PWR-2700- DC-F DCS-7308 (Reverse) DCS-7308X- FM-R DCS-7308-S- FAN-R FAN-7002-R DCS-7300X- 32Q-LC DCS-7300X- 64S-LC DCS-7300X- 64T-LC PWR-3K-AC- R PWR-2700- DC-R DCS-7316 (Forward) DCS-7316X- FM-F Not AvailableFAN-7002-F DCS-7300X- 32Q-LC DCS-7300X- 64S-LC DCS-7300X- 64T-LC PWR-3K-AC- F PWR-2700- DC-F PWR-3K-AC- R PWR-2700- DC-R
(Reverse) DCS-7316X- FM-R Not AvailableFAN-7002-R DCS-7300X- 32Q-LC DCS-7300X- 64S-LC DCS-7300X- 64T-LC PWR-3K-AC- F PWR-2700- DC-F PWR-3K-AC- R PWR-2700- DC-R Table 4: 7320X Series lists 7320X Series switch components. Table 4: 7320X Series Chassis Model Fabric Module Fan Spare Line Card Power Supply DCS-7324X (Forward) DCS-7324X-FM- F FAN-7002H-F DCS-7320X-32C- LC PWR-3KT-AC- BLUE DCS-7328X (Forward) DCS-7328X-FM- F FAN-7002H-F DCS-7320X-32C- LC PWR-3KT-AC- BLUE Table 5: 7320X3 Series lists 7300X3 Series switch components. Table 5: 7320X3 Series Chassis Model Fabric Module Fan Spare Line Card Power Supply DCS-7304X3 DCS-7304X3-FM FAN-7002H-F DCS-7300X3-32C- LC PWR-3KT-AC- BLUE DCS-7308X3 DCS-7308X3-FM FAN-7002H-F DCS-7320X-32C- LC PWR-3KT-AC- BLUE Table 6: AC/DC PSU Comparison (Circuit, Cabling, and Airflow for DCS-7304, DCS-7308, and DCS-7316) lists an AC and DC Power Supply Unit (PSU) comparison of circuit, cabling, and airflow for the DCS-7304, DCS-7308, and DCS-7316. Table 6: AC/DC PSU Comparison (Circuit, Cabling, and Airflow for DCS-7304, DCS-7308, and DCS-7316) Required Cabling and InterconnectModel Supported Chassis Input Power (Per Circuit) Branch Circuit Protection Description Qty PSU Air Flow PWR-3K- AC-R PWR-3K- AC-F DCS-7304 DCS-7308 DCS-7316 200 - 240 VAC
16 A (20 A
US) 50 or 60 Hz
20 A Power
cables: 14 AWG, C19- C20 One for each AC power supply module supplied with switch. Reverse (Red) Forward (Blue)
US) 50 or 60 Hz cables: 14 AWG, C19- C20 One for each AC power supply module supplied with switch. Forward (Blue) PWR-2700- DC-R PWR-2700- DC-F DCS-7304 DCS-7308 DCS-7316 -48 to -60 VDC 80 A
100 A DC Adapter
(Arista part number CON-00581) 2 hole compression lug (not included) One DC adapter per power supply compression lugs per DC Adapter Reverse (Red) Forward (Blue) PWR-3K- DC- BLUE DCS-7304 DCS-7308 -48 to -60 VDC 82.5 A
100 A 2 hole
lug (not included) compression lugs per DC Adapter Forward (Blue) Table 7: Power Supply Setup for LED Status lists the power supply setup for LED status indicators. Table 7: Power Supply Setup for LED Status PWR-3K-AC- Blue PWR-3KT- AC-R PWR-2700- DC-R PWR-3K-DC- Blue Power Supply State LED Name PWR-3K-AC- Red PWR-3KT-AC PWR-2700- DC-F PWR-3K-DC- Red Input power present Normal Operation Vin Good DC Good Fault Green Green Off Green Green Off Green Green Off Green Input power present Main output off Vin Good DC Good Fault Green Off Off Green Off Off Green Off Off Blinking Green Input power present Power Supply Fault Vin Good DC Good Fault Green Off Blinking Amber Green Off Blinking Amber Green Off Blinking Amber Blinking Amber, 1 sec on, 1 sec off No Input Power Supply installed in chassis Vin Good DC Good Fault Off Off Off Off Off Off Off Off Off Off
Amber, 0.5 sec on/off
2.1 Site Selection
Describes the location specifications. Consider the following criteria when selecting a site to install the switch: Floor Space:Install the switch in an area that provides adequate clearance for removing front and rear components. Thre following figure displays switch clearance requirements. Figure 1: Switch Component Removal Footprint 1. Temperature and Ventilation: For proper ventilation, install the switch where there is ample airflow to the front and back of the switch. The temperature should not go below 0° or exceed 40°C. 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). 2. Airflow Orientation: Determine airflow direction of the fan modules and power supply modules. Fan and power supply module handles indicate airflow direction:
- Blue Handle: Air Inlet module.
- Red Handle: Air Exit module. Front Panels displays power supply module locations on the front panel. Rear Panels displays fan module locations on the rear panel (DCS-7316 switches may also contain rear panel power supply modules). Verify the airflow direction of all modules satisfy these criteria:
- All rear panel modules have the same color handles.
- All front panel modules have the same color handles.
- Rear panel modules must have different color handles than front panel modules. Orient the switch to assure that the air intake modules face the cool aisle. If the airflow direction is not compatible with the installation site, contact your sales representative to obtain modules that circulate air in the opposite direction.
- Rack Space: Install the switch in a 19" rack or cabinet. The switch height depends on the switch model, as specified in Table 1: 7300 Modular Switch and Component Specifications . Verify that the linecard and supervisor removal clearance (Figure 1: Switch Component Removal Footprint ) provide adequate space for the power and data cables that connect to the switch.
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. The accessory kit provides mounting brackets for four-post racks. Contact your sales representative to obtain two-post mounting racks.
- Power Requirements: Power requirements vary by switch. Refer to Table 1: 7300 Modular Switch and Component Specifications for information regarding your specific system. Multiple circuits provide redundancy protection. The switch uses power cables that have an IEC-320 C19 plug. The accessory kit provides IEC-320 C19 to C20 power cables. Important: All power input plug-socket combinations must be accessible at all times; they provide the primary method of disconnecting power from the system. Toutes les combinaisons de fiche-prise d’entrée de puissance doivent être accessibles en tout temps; ils fournissent le principal moyen de coupure d’alimentation du système.
- 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 these guidelines are met:
- Clearance areas to the front and rear panels allow for unrestricted cabling.
- All front and rear panel indicators can be easily read.
- AC power cords can reach from the AC power outlet to the connectors on the front panel. Important: Disconnecting power to all input sockets is required to completely power off the unit. Coupure d’alimentation sur toutes les entrées il faut pouvoir complètement l’appareil hors tension.
2.2 Tools Required for Installation
Each switch provides an accessory kit that contains parts for installing the switch into a four-post rack. Two-post rack mount parts are available through your sales representative. Accessory kits do not include screws, nuts, or bolts for attaching the switch to a conventional rack. In addition to the accessory kit, the following tools are required to install a modular switch: All Racks Mechanical device capable of lifting chassis being installed (chassis weight listed in Table 1: 7300 Modular Switch and Component Specifications ). Two-Post Conventional Rack
- Screws or rack mounting nuts and bolts.
- Screwdriver. Four-Post Tool-less Rack No additional equipment required. Four-Post Conventional Rack
- Screws or rack mounting nuts and bolts.
- Screwdriver.
2.3 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.
- Use a conductive work surfaces (such as an antistatic mat) to dissipate static charge.
- Wear an ESD 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.
- Use tools that do not create ESD.
Important: The rack mounting procedure is identical for all modular switches. Illustrations in this chapter depict the mounting of an unpopulated DCS-7304 chassis. Les procédure de montage du bâti est identique pour tous les commutateurs modulaires. Illustrations dans ce chapitre montrent le montage d’un châssis de DCS-7304 inhabité.
- Two-Post Rack Mount provides instructions for mounting the switch in a two-post rack.
- Four-Post Rack Mount provides instructions for mounting the switch in a four-post rack. After completing the instructions for your rack type, proceed to Powering the Modular Switch .
3.1 Two-Post Rack Mount
To mount the switch to a two-post rack, assemble mounting brackets to the middle of the chassis, then attach the brackets to the rack. Important: Two-post rack mount parts are only available through your sales representative. Two-post rack mounting is not supported for DCS-7316 switches. Pièces de montage rack à deux montants sont uniquement disponibles par l’intermédiaire de votre représentant des ventes. Montage en rack de deux-poteau n’est pas supporté pour les commutateurs DCS-7316. The accessory kit includes the following two-post mounting parts:
- 2 center-mount brackets.
- 16 (DCS-7304) or 20 (DCS-7308) M4x8 panhead Phillips screws.
3.1.1 Attaching Mounting Brackets to the Chassis
- Orient the switch chassis and the two center-mount brackets (Figure 2: Attaching the Center-mount Brackets). Figure 2: Attaching the Center-mount Brackets Position the flanges that attach to the rack posts toward the front of the chassis.
- Attach both center-mount brackets to the chassis with the provided M4x8 panhead Phillips screws. Secure the bracket by attaching screws through each bracket hole.
3.1.2 Inserting the Switch into the Rack
- Rotate the stabilizer bar from the left shelf toward the right shelf such that the nob at the end of the stabilizer bar inserts into the notch at the rear of the ledge of the right shelf. Figure 3: Both Switch Shelves Installed 2. Move the chassis to the rack using a mechanical lift (Figure 4: Lifting the Switch Chassis). If modules are inserted in the chassis, use the lift carefully to avoid damaging any components. Figure 4: Lifting the Switch Chassis 3. Lift the chassis into the rack. 4. Secure the chassis by tightening the six thumbscrews on the front flanges into the rack posts. After completing the Four-Post Installation, proceed to Powering the Modular Switch .
3.2 Four-Post Rack Mount
The switch is mounted onto a four-post rack by assembling a shelf into the rack, then attaching the switch on the shelf. The four-post rack mount instructions include these sections:
- Component Description
- Component Placement
- Switch Mounting Process
3.2.1 Component Description
The four-post mount accessory kit contains these components:
- 1 Left Shelf and 1 Right Shelf (Shelves)
- 2 Mounting Ears (Mounting Ears) Note: Components are designed for tool-less installation in square-hole racks. To install the switch in round hole or threaded hole racks, remove all rack plugs from rail kit, if required (described below), and attach all components with nuts and bolts that fit the rack. The finished assembly for rack mounting the device is shown in Figure 6: Left Shelf – Inner View. Detailed mounting instructions for all rack types start from Shelf Installation. Figure 5: Switch Shelves Installed Note: The parts list for rack kit installations for round and threaded hole racks are listed in Parts List.
3.2.1.1 Shelves
The two shelves are almost identical, differing in that 1) they are mirror-images of each other, and 2) the left shelf includes a stabilizer bar. Each shelf is a two-piece mechanism. The base includes the surface upon which the switch is placed and is oriented towards the front of the rack. The slide-end adjusts the shelf’s length for fitting the shelf between front and rear posts of various size racks.
Figure 6: Left Shelf – Inner View displays the inner view of the left shelf. Depending on the rack kit ordered, each shelf may include latches to the locking mechanism that secures the shelf to the rack. If the locking mechanism is not present, the kit shall be attached with appropriate screws (not included). Figure 6: Left Shelf – Inner View displays latches that are closed; the insets display open latches The inner side of each shelf is oriented toward the center of the rack. Figure 6: Left Shelf – Inner View
1 Front post attachments4 Rear post attachments 7 Stabilizer bar (left shelf
only)
2 Front latch (closed)5 Slide-end 8 Front latch (open)
3 Rear latch (closed) 6 Base 9 Rear latch (open)
Figure 7: Right Shelf – Outer View displays the outside view of the right shelf, from where rack plugs and guide pins that insert into rack posts are visible (Insets A and B). To install shelves into posts with threaded or rounded holes, attach the shelves with bolts that fit the rack. Remove all plugs from the shelves if present. Figure 7: Right Shelf – Outer View
1 Front post attachments
(Inset A)
4 Rear post attachments
(Inset B)
7 Inset B
2 Base 5 Inset A 8 Rack plugs
3 Slide-end 6 Rack plugs
3.2.1.2 Mounting Ears
Figure 8: Mounting Ears displays the mounting ears, which secure the switch top to the rack. The two mounting ears are identical and installed above each shelf. The inner side of each ear may include a latch to the locking mechanism that secures the ear to the rack.
Rack posts and guide pins that insert into the rack are visible from the outer side of the ear (Inset B). To install ears into posts with threaded or round holes, remove both plugs from each ear (if required for rail set), then install the ears with screws that fit the rack. Figure 8: Mounting Ears
1 Brace (Inner view) 4 Inset A - Released 7 Inset B (Details)
2 Inset A 5 Brace (Outer view) 8 Rack plugs
3 Inset A - Locked 6 Inset B
3.2.2 Component Placement
Figure 9: Component Placement displays component placement for a 7304 (8-RU) switch. Mounting ears brace the top of the switch; their rack placement position differs for each switch model. Using the placement of the shelves’ bottom front rack plug as a reference (first RU and first hole), the mounting ears are placed as follows:
- 7304: 8th RU (22nd through 24th holes)
- 7308: 13th RU (37th through 39th holes)
- 7316: 21st RU (61st through 63rd holes) Figure 9: Component Placement
3.2.3 Switch Mounting Process
The switch mounting process consists of three steps:
- Installing the shelves. 2. Installing the mounting ears. 3. Placing and securing the switch upon the shelves.
3.2.3.1 Shelf Installation
The installation process for each shelf is identical. The shelves must be installed on the same horizontal level. In the following section, inner side illustrations feature the left shelf and outer side illustrations feature the right shelf. Perform the following procedure for each shelf: 1. If applicable, verify that both locking mechanism latches on the shelf are open (Figure 6: Left Shelf – Inner View, insets A and B). Racks that do not require the locking mechanism, skip to Step 2. 2. Attach the front side of the shelf to its corresponding front rack post by inserting the shelf-side rack plugs and guide pins into post slots (Figure 10: Attaching the Right Shelf). The shelf ledge must be between the front posts. If the rack plugs were previously removed or not present, use bolts to attach the shelf to the rack, and skip to Step 4.. Figure 10: Attaching the Right Shelf
1 Right front rack post
2 Right shelf
- Close the front locking mechanism latch (Figure 7: Right Shelf – Outer View). 4. Glide the slide-end to a position outside of its rear rack post (Figure 11: Adjusting the Right Shelf ).
Figure 11: Adjusting the Right Shelf
1 Front left rack post
2 Front right rack post
3 Rear right rack post
- Attach the back-side of the shelf into the rear shelf by gliding the slide-end such that the rack plugs (if present) and guide pins are inserted into the rack post holes (Figure 12: Seating the Left Shelf). The bottom rack plug must be inserted one RU (three rack holes) above the bottom rack plug on the front side of the shelf. If the locking mechanism and plugs are not used, fasten the back-side of the shelf to the rear shelf, and skip to Step 6. Figure 12: Seating the Left Shelf 6. Close the rear locking mechanism latch if present (Figure 7: Right Shelf – Outer View).
3.2.3.2 Mounting Ear Installation
The mounting ears attach the top of the switch to the rack posts. Their placement on the posts depend on the switch model (Component Placement). The installation process for each mounting ear is identical. The inner side of the mounting ear (which includes the locking mechanism latch) is oriented between the front rack posts. Depending on the rack kit configuration, a locking mechanism may not be present. In the following section, all illustrations feature the right mounting ear. Perform the following procedure for each mounting ear:
- Install the mounting ear on the front post by inserting the front rack plugs (if present) and guide pins in the racks specified for the switch model that is being installed (Figure 13: Attaching the Right Mounting Ear ). Figure 13: Attaching the Right Mounting Ear
1 Front right rack post
If rack plugs are not present, align the threaded holes and attach the mounting ears with screws. 2. If applicable, close the front locking mechanism latch (Figure 8: Mounting Ears ).
3.2.3.3 Inserting the Switch into the Rack
- Rotate the stabilizer bar from the left shelf toward the right shelf such that the nob at the end of the stabilizer bar inserts into the notch at the rear of the ledge of the right shelf. Figure 14: Both Switch Shelves Installed
- Move the chassis to the rack using a mechanical lift (Figure 4: Lifting the Switch Chassis). If modules are inserted in the chassis, use the lift carefully to avoid damaging any components. Figure 15: Lifting the Switch Chassis 3. Lift the chassis into the rack. 4. Secure the chassis by tightening the six thumbscrews on the front flanges into the rack posts. After completing the Four-Post Installation, proceed to Powering the Modular Switch .
Powering the Modular Switch Important: Installation of this equipment must comply with local and national electrical codes. If necessary, consult with the appropriate regulatory agencies and inspection authorities to ensure 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 multiple power supplies. Refer to Specifications for information regarding your specific system. Table 8: Power Supply Capacity and Requirements for 7300 Series Modular Switches lists the quantity of modules each chassis can contain and the minimum operating requirements for each model. Table 8: Power Supply Capacity and Requirements for 7300 Series Modular Switches Switch Model Chassis Capacity Minimum Operating Requirements DCS-7304 / DCS-7324 / DCS-7304X3 Front Panel: 4 modules1 active circuit DCS-7308 / DCS-7328 / DCS-7308X3 Front Panel: 6 modules2 active circuits DCS-7316 Front Panel: 6 modules Rear Panel: 2 modules 3 active circuits Front Panels displays the location of the power supplies on the front panel of the switch. Rear Panels displays the location of power supplies on the rear panel of DCS-7316 switches. This chapter includes sections that describe procedure for grounding and cabling AC and DC power supplies. After completing the instructions for your switch, proceed to Connecting Supervisor Cables. Important: 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: Provide power to the minimum required power inputs.
- Redundant Power Supply Configuration: Connecting power to modules in excess of minimum requirements protects the switch against failed modules and can provide grid-level redundancy.
- Power down the Switch: Remove all power cords from the power input sockets. Important: This equipment must be grounded. Never defeat the ground conductor. This unit requires over-current protection. Cet équipement doit être mis à la terre. Ne jamais modifier le conducteur de terre. Cet appareil nécessite de protection contre les surintensités.
4.1 Cabling the AC Power Supply
4.1.1 Grounding the Switch
After mounting the switch into the rack, connect the switch to the data center ground. Figure 16: Grounding Pad and ESD Grounding Pad Sockets displays the location of the grounding pads located on the front panel (left illustration) and rear panel (right illustration). After the switch is grounded, ESD wrist straps can be grounded by connecting them to one of the grounding pads. Important: 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 U.S. 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 des câbles 6 AWG sont recommandé pour les installations aux États-Unis.
1 Secondary ground
2 Secondary ground
3 Earth grounding pad
Figure 16: Grounding Pad and ESD Grounding Pad Sockets
4.1.2 Connecting Power Cables to an AC Power Supply
Figure 17: Power Input Sockets displays an AC power supply module, including the power input socket.
Powering the Modular Switch Figure 17: Power Input Sockets The power supplies require power cables that comply with IEC-320 C19 plug. The accessory kit provides 14 AWG, C19 to C20 power cables. To insert a power cable: 1. Pull the retaining clip back on each power input socket. Note: The retaining clip is optional (if provided). 2. Plug the power cables into the sockets. 3. Adjust the retaining clips if needed for your power cords (if retaining clip was provided). 4. Push the retaining clip back down over the cable (if retaining clip was provided).
4.2 Cabling the DC Power Supply
Figure 18: Secondary Ground Pads displays the location of the secondary grounding pads on front panel (left illustration) of the switch chassis. After mounting the switch into the rack, connect the at least one of the secondary grounds to the data center ground. After the switch is grounded, ESD wrist straps can be grounded by connecting them to one of the attach points. Important: Grounding wires and grounding lugs (M4 x 0.7) are not supplied. Wire size should meet local and national installation requirements. Commercially available 4 AWG wire is recommended for installations in the U.S. 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 des câbles 4 AWG sont recommandé pour les installations aux États-Unis. Important: The -48V and Battery-Return leads are a pair and should run adjacent to each other and be approximately the same length. Le - 48V et câbles de batterie-retour sont une paire courir à côté de l'autre et doivent être à peu près la même longueur.
4.2.1 DC Power Supplies
The 7300 Series chassis supports two DC power supplies (Figure 4-4). Only specified power supplies are available for use in a particular switch configuration.
- PWR-2700-DC-R (Figure 23: PWR-2700-DC-R Power Supply ).
- PWR-3K-DC-Blue, also referred to as PWR-3K-DC-F (Figure 22: PWR-3K-DC-Blue Power Supply ).
Figure 18: Secondary Ground Pads Note: The power supply orientation in your device may be different from the one shown in Figure 19: PWR-3K-DC-Blue and PWR-2700-DC-R Power Supplies . Figure 19: PWR-3K-DC-Blue and PWR-2700-DC-R Power Supplies
1 Primary ground
4.2.2 Wire and Lug Preparation
Before performing any installation actions, ensure power is removed from DC circuits by turning off the power line servicing the circuits. Prepare the stranded wiring before you begin a DC power installation. 1. Stranded copper wiring is required.
Powering the Modular Switch
- Commercially available 2 to 4 AWG wire is recommended for installations in the U.S.
- Wire size should meet local and national installation requirements.
- Grounding wires and grounding lugs are not supplied.
- Strip the wires to the appropriate length for the lugs. The wires connecting the DC power supply to the power source must meet the following requirements:
- DC Input Wire Size: 2 – 4 AWG (33.6 mm2 to 21.2 mm2).
- Primary Ground Wire Size: 2 – 4 AWG (33.6 mm2 to 21.2 mm2) per power supply.
- The conductors are copper. 1 -48V + RTN lug 5 5/16” 9 5/8”
2 Insulated wire 6 Heat-shrink tubing 10 1/2”
3 Insulated wire 7 Heat-shrink tubing
4 Ground lug (right angle)8 1/4”
Figure 20: Lugs Wiring Terminations Figure 21: Ground Lug Wiring Termination (PWR-2700W-DC-R)
1 Insulated wire 3 5/16”
2 Ground lug (right angle)4 Heat-shrink tubing
Note: You can also use a 45° angled connector instead of the straight connector shown. 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. The PWR-2700W-DC-R ground lug is a right-angle lug. Check the terminations for the appropriate wire size. Use a ground wire of at least 2 – 4 AWG. Use only copper wire. 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 tubing with a heat gun.
4.2.3 PWR-3K-DC-Blue Power Supply
Figure 22: PWR-3K-DC-Blue Power Supply displays the PWR-3K-DC-Blue power supply. Figure 22: PWR-3K-DC-Blue Power Supply 1. Prepare the stranded wiring, see Wire and Lug Preparation 2. Attach the power cable to the supply terminals. 3. Tightening Torque: 2.7 N-m (24 in.-lbs.)
4.3 DC Power Adapter Installation for PWR-2700-DC-R
4.3.1 Connecting the Power Cable Lug to the Terminal Studs
- Prepare the stranded wiring, see Wire and Lug Preparation. 2. Remove the clear plastic cover protecting the terminal studs on the adapter by lifting the small center tab while sliding the cover off the adapter.
4.3.2 Connecting the Ground to PWR-2700-DC-R Power Supply
The primary ground on the system requires a 2 – 4 AWG 5/16 inch lug per power supply. Figure 23: PWR-2700-DC-R Power Supply displays the PWR-2700-DC-R power supply without the DC adapter.
Powering the Modular Switch Figure 23: PWR-2700-DC-R Power Supply 1. Prepare the stranded wiring, see Section 4.2.2. 2. Attach the ground cable to the ground stud.
Connecting Serial and Management Cables
5.1 Connecting Supervisor Cables
Supervisor modules contain console, management, and USB ports. Figure 24: Supervisor Ports (DCS-7300(-D)-SUP) displays status LED and port locations on 7300 Series Modular switch supervisor. Figure 24: Supervisor Ports (DCS-7300(-D)-SUP)
1 Status LED 5 Fabric module status
9 Ethernet management
2 Active LED 6 Fan module status LED10 USB ports
3 Power supply status
7 Console serial port 11 Clock input port
4 Line card status LED8 Ethernet management
12 Release lever
- Console (Serial) Port: Connect to a PC with RJ-45 to DB-9 serial adapter cable. Default switch settings include:
- 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 cable.
- USB Port: May be used for software or configuration updates.
- Clock Input Port: Port type is MCX connector, 2-5.5V, 50 ohm termination.
5.2 Connecting Linecard Modules and Cables
Install required SFP, SFP+, and QSFP+ optic modules in linecard module ports (Figure 25: SFP or SFP+ Ports ). Connect cables as required to linecard module ports or RJ45 ports. Figure 25: SFP or SFP+ Ports CAUTION : Excessive bending can damage interface cables, especially optical cables.
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 ) 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 admin , assigns an IP address to the management port, and defines a default route to a network gateway. 1. Provide power to the switch ( Powering the Modular Switch ). 2. Connect the console port to a PC (Connecting Serial and Management Cables). As the switch boots without a startup-config file, it displays this message 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 Provisioning, login as admin and type 'zerotouch cancel' at the CLI. localhost login: 3. Log into the switch by typing admin at the login prompt. localhost login:admin 4. Cancel ZTP mode by typing zerotouch cancel. IMPORTANT: This step initiates a switch reboot. localhost>zerotouch cancel 5. After the switch boots, log into the switch again by typing adminat the login prompt. Arista EOS localhost login:admin Last login: Fri Mar 15 13:17:13 on console 6. Enter global configuration mode. localhost>enable localhost#config 7. Assign a password to the admin username with the username secret command. localhost(config)#username admin secret pxq123 8. Configure a default route to the network gateway.
localhost(config)#interface management 1/1 localhost(config-if-Ma1/1)#ip address 192.0.2.8/24 10. Save the configuration by typing write memory or copy running-config startup-config. localhost#copy running-config startup-config 11. 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.
This section discusses the several status indicators, their location, and the meaning of their display status. A.1 Supervisor Module While the front panel of each switch can house two supervisors, switch operations require only one. Supervisors display switch component status and contain Ethernet management and console ports. Fabric and Fan-only Module Description displays the supervisor location on each switch. The supervisor provides one serial console port, two Ethernet management ports, two USB ports, and one clock input port. Supervisor activity is reported by LEDs in the lower left corner. Four LEDs located right of these LEDs report status of other switch components. Figure 26: Supervisor Module (DCS-7300(-D)-SUP) displays the Supervisor Module. Figure 26: Supervisor Module (DCS-7300(-D)-SUP) Supervisor Activity Status LEDs Table 9: Supervisor Activity LED States interprets the states of the Status and Active LEDs. Table 9: Supervisor Activity LED States LED Name LED State Supervisor State
Off Module failed or is improperly inserted. Green Supervisor operating normally. Status Red Module failed. Off Supervisor is not active.Active Green Supervisor is active and controlling the switch. Component Activity Status LEDs LEDs located below the vents and left of the input ports display summary indicators for power supplies, fabric modules, fan modules, and line cards. Table 10: Component Activity LED States interprets the states of these indicators. When error conditions are indicated, refer to LEDs on the specified modules to determine the condition’s source. Table 10: Component Activity LED States LED Name LED State Module State Off No modules are present or powered. Green All powered modules are operating normally. Power Supply Line Card Fabric Module Red At least one module has failed. Off Module not inserted. Amber At least one fan is missing or has failed. Green All modules are operating normally. Fan Modules Red There are insufficient functional fans installed in the switch. A.2 Line Card Module Indicators Each line card module provides one status LED plus LEDs for each port on the card. The figures in Line Cards indicate the location of the LEDs on each line card. Figure A-2-left displays the status LED and Port LEDs on the left side of the DCS-7300X-64S-LC line card. Figure A-2-right displays the status LED and Port LEDs on the left side of the DCS-7300X-32Q-LC line card.
Figure 27: Linecard Status LEDs (DCS-7300X-LC)
1 Status LED
2 Upper port status LED
3 Lower port status LED
Figure 28: Linecard Status LEDs (DCS-7300X-32Q-LC)
1 Status LED 4 QSFP 2
5 QSFP 3
3 QSFP 1 6 QSFP 4
The Line Card Status LED is in the top left corner of the DCS-7300X Line Card. Table 11: Line Card Status LED States interprets the states of the Status LED. Table 11: Line Card Status LED States LED State Status
Off Line card not inserted. Green Line card operating normally. Yellow Line card administratively shut down. Red Module has failed. The Line card provides LEDs for each port module socket:
- Figure 27: Linecard Status LEDs (DCS-7300X-LC) displays SFP module LEDs. Each LED corresponds to a module.
- Figure 28: Linecard Status LEDs (DCS-7300X-32Q-LC) displays QSFP module LEDs. A set of four LEDs correspond to each module. When the module is programmed as a 40G port, the first LED in the set reports status. When the module is programmed as four 10G ports, each port is assigned to an LED within the set. Table 12: Line card Port LED States interprets port LED states. Table 12: Line card Port LED States LED State Status Off Port link is down. Green Port link is up. Yellow Port is disabled in software. A.3 Fan and Fabric Status Indicators Fan and fabric modules are accessed from the rear panel. Fabric modules are inserted into the switch and fan modules are inserted into the fabric modules. Each switch contains four fabric modules; the fan module capacity of fabric modules varies by switch model, as displayed in Table 13: Fan Module Capacity . Table 13: Fan Module Capacity Switch Model Fabric Capacity Switch Capacity DCS-7304 2 fan modules 8 fan modules DCS-7308 4 fan modules 16 fan modules DCS-7316 8 fan modules 32 fan modules Rear Panels displays the rear panel of all switches covered by this guide. Figure 29: Fan Status and Fabric Status LEDs displays a DCS-7304-FM fabric module and the fan modules that it contains. Fan and fabric module indicators are displayed in Figure 29: Fan Status and Fabric Status LEDs . The fan handle indicates the fan direction. All fan modules must have the same color handle.
Figure 29: Fan Status and Fabric Status LEDs
1 Handle (color indicates
airflow orientation)
3 Fan module installation
2 Fabric status LED 4 Fan module status LED
The fan module installation indicator is green when the fan module is properly installed or red when the module is not fully installed. Table 14: Fan and Fabric Status LED States interprets the states of the Fan and Fabric Status LEDs. Table 14: Fan and Fabric Status LED States LED State Status Off The module is inserted but not receiving power – it may not be properly seated. Green The module is operating normally. Red The module has failed. A.4 Power Supply Status Indicators Power Supply LEDs are on power supply modules. The front panel contains power supply modules for all switches; the DCS-7316 rear panel may also contain power supply modules. Front Panels (front panels) and Rear Panels (rear panels) displays the position of these LEDs on each switch. Figure 30: Power Supply display a power supply module. The power supply handle indicates the power supply fan direction. Verify the airflow direction of all modules satisfy these criteria:
- All rear panel modules (fan and power supply modules) have the same color handles.
- All front panel modules (power supply modules) have the same color handles.
- Rear panel modules and front panel modules have different color handles.
Figure 30: Power Supply
1 Release 3 DC OK LED 5 AC OK LED
2 Ejector (color indicates
airflow orientation)
4 Fault LED
Table 15: Power Supply Status interprets the states of the Power Supply Status LED. Table 15: Power Supply Status AC OK LED Fault LED DC OK LED Status Green Off Green Power Supply module operating normally. Green Off Off AC is present, Main output is off. Off Off Off No AC power to the module. Green Amber Blinking Off Module has faulted.
Fabric and Fan-only Module Description Each switch has four rear slots for fabric modules. In addition to providing the data transport media, fabric modules contain fan modules that circulate air through the switch. Proper switch operation requires the population of each rear slot. Switches that are configured for maximum traffic capacity contain a fabric module in each rear slot. In network configurations that do not require maximum traffic capacity, an economical alternative is to replace two fabric modules with fan-only modules. Each fan-only module provides the cooling capacity of the corresponding fabric module through a set of fans that are integrated into the module. The fans of a fan-only module are not removable, unlike the fabric module that requires the insertion of individual fan modules. Fan-only modules are available for the 7304 and 7308 switches. Fabric and Fan Modules: Extracted- left displays a 7304 fabric module and a 7304 fan-only module that are removed from the switch. Fabric and Fan Modules: Installed-right displays the rear panel of a 7304 switch that contains two fabric modules and two fan-only modules. Figure 31: Fabric and Fan-only Modules: Extracted (left) and Installed (right) Each module includes lock-levers that secure it to the chassis. The module and the lock levers are easily damaged by improperly removing, inserting, or handling the fabric module. Never use the lock levers to lift or move the module after it is removed from the chassis. The fan direction of the fabric modules is specified by the color of the fan modules. The fan direction on fan-only modules is denoted by the indicator located below the top handle (Figure 35: DCS-7304 Fabric and Fan-only Module (left); DCS-7304 Fan-only Module (right) ). The following module combinations are the only valid rear panel configurations:
- Fabric Modules in slots 1 – 4
- Fabric Modules in slots 1 – 2; Fan-only modules in slots 3 – 4. Note: On the 7308, if a fan-only module is not inserted, a metal piece covers the slot as shown below
1 Metal covering
Table 16: Fabric and Fan-only Module Part Numbers lists the part numbers of Fabric and Fan-only Modules. Table 16: Fabric and Fan-only Module Part Numbers Switch Model Fabric Module Fan-only Module DCS-7304 (Air Inlet) DCS-7304 (Air Exit) DCS-7304X-FM-R DCS-7304X-FM-F DCS-7304-S-FAN-R DCS-7304-S-FAN-F DCS-7308 (Air Inlet) DCS-7308 (Air Exit) DCS-7308X-FM-F DCS-7308X-FM-R DCS-7308-S-FAN-R DCS-7308-S-FAN-F DCS-7316 (Air Inlet) DCS-7316 (Air Exit) DCS-7316X-FM-F DCS-7316X-FM-R Not Available Not Available DCS-7324 (Air Exit Only) DCS-7324-FM-F Not Supported DCS-7328 (Air Exit Only DCS-7328-FM-F Not Supported B.1 Handling Fabric Modules Figure 32: Locking Mechanism: DCS-7316 Fabric depicts a DCS-7316 chassis with the inner two fabric modules installed. Lock-levers are shown in the open and closed position, along with the button that releases them into the open position. The lock-levers are in the closed position when the switch is in service.
Fabric and Fan-only Module Description Figure 32: Locking Mechanism: DCS-7316 Fabric
1 Lock levers open (FM2)3 Release button (FM3)
2 Upper lock lever closed
(FM3)
4 Lower lock lever closed
(FM3) These sections describe fabric module handling procedures. Illustrations depict a DCS-7316 chassis and fabric modules. While proper handling of DCS-7316 components is imperative because of their size and weight, the instructions also describe best practices for handling DCS-7304 and DCS-7308 components. B.1.1 Removing Fabric Modules Note: While removing and replacing a fabric module in a gen3 chassis (7304X3, 7308X3), issue a command to offload traffic before removing the module to avoid potential traffic loss. This procedure removes a fabric from the switch chassis. 1. Release the lock-levers from the module frame (Fabric Module Removal:Initial Position-left). 2. Extend the lock-levers towards the top and bottom of the chassis (Fabric Module Removal:Initial Position-right). 3. Use the lock-levers to pull the module three to four inches (Fabric Module Removal:Edging the Module Out-left). 4. Return the lock-levers to the closed position (Fabric Module Removal:Edging the Module Out Closing the Lock Levers-right) 5. Grasp the module frame and pull the module until it is completely outside of the chassis.
Fabric and Fan-only Module Description 5. Return the lock-levers to the closed position, securing the module to the chassis (Fabric Module- left). B.2 Handling Fan-only Modules DCS-7304 Fabric and Fan-only Module (left) depicts a DCS-7304 chassis with installed fabric modules (slots 1 and 2) and fan-only modules (slots 3 and 4). Lock-levers are shown in the open (slot 3) and closed (slot 4) position DCS-7304 Fan-only Module (right) displays the position of the lock lever release screw (below the extended handles). The fan direction indicator is located below the top handle. Refer to Site Selection for airflow configuration requirements. The following configuration is mandatory when fan-only modules are installed:
- Slots 1 and 2 contain fabric modules
- Slots 3 and 4 contain fan-only modules Figure 35: DCS-7304 Fabric and Fan-only Module (left); DCS-7304 Fan-only Module (right)
1 Lock lever release
3 Lock lever release
2 Fan airflow direction
(color indicates airflow direction) B.2.1 Removing Fan-only Modules This procedure describes the proper method for removing fan-only modules from the switch: 1. Release the lock-levers from the module frame by rotating each handle’s release screw counter- clockwise (DCS-7304 Fan-only Module (right)). 2. Extend the lock-levers towards the top and bottom of the chassis (DCS-7304 Fabric and Fan-only Module (left)). 3. Use the lock-levers to pull the module three to four inches from the installed position. 4. Return the lock-levers to the closed position. 5. Grasp the module frame and pull the module until it is completely outside of the chassis.
B.2.2 Inserting Fan-only Modules The fabric module insertion process is the inverse of the removal procedure. These instructions describe the method of inserting the fabric module into a chassis. 1. Grasping the module by its frame, place the module chassis railing that corresponds to the slot where it is to be placed. The lock-levers should be in the closed position. 2. Slide the module into the chassis until it is within three to four inches of being fully inserted. 3. Extend the lock-levers towards the top and bottom of the chassis. 4. Continue inserting the module into the chassis. 5. Return the lock-levers to the closed position, securing the module to the chassis. 6. Secure each lock-lever handle to the module by inserting the release screw into the module body and rotating clockwise.
Each switch provides an accessory kit that contains parts that are required to install the switch into a four-post rack. Two-post rack mount parts are available through your sales representative. The following sections list the installation parts provided by the accessory kit. C.1 Parts Used in All Configurations Quantity Description One for each AC power supply module supplied with switch. Power cables: 14 AWG, C19-C20. One for each DC power supply module supplied with switch. DC Adapter (Arista part number CON-00581; part number G10TBL2021100211HR; Figure 36: DC Adapter ), Terminal Block, M4 Lug. One RJ-45 Patch Panel Cables, 2 meters. One RJ-45 to DB9 Adapter Cable, 2 meters. Warning: All provided power cables are for use only with Arista products. Figure 36: DC Adapter C.2 Four-Post Rack Mount Parts Quantity Description
2 Mounting Ears
1 Left shelf
1 Right shelf
Figure 37: Four-Post Rack Mount Parts
3 Mounting ears
C.3 Four-Post Rack Mount Kit (Optional - 106-575-074-00) Part Number Quantity Description Rack Type 036-030-014 18 M610 clip nuts Round hole 036-023-025 18 M6 cage nuts Square hole 036-020-051 18 12-24 x .50 screws Threaded hole 106002508 18 M6 x .50 screws Square, round, and threaded hole 036-701-148 18 10-32 x .50 screws Threaded hole C.4 Two-Post Rack Mount Parts Two-post rack mount parts for DCS-7304 and DCS-7308 switches are available through your sales representative. Two-post rack mounts are not supported for DCS-7316 switches. Quantity Description 2 Center-mount brackets.
16 (DCS-7304) 20 (DCS-7308) M4x8 panhead Phillips screws. Figure 38: Two-Post Rack Mount Parts
1 Center-mount brackets
(7308 only)
3 M4x8 panhead Phillip
2 Center-mount brackets
(7304 only)
This Front Panel section displays the front panel of all switches covered by this guide. DCS-7304 and DCS-7324 Front Panel (fully populated)
1 Supervisor modules (slots
1-2)
2 Linecard modules (slots
3-6)
3 Power supply modules
4 Earth grounding pads
(behind covers)
DCS-7308 and DCS-7328 Front Panel (fully populated) 1-2) 3-10) (behind covers)
DCS-7316 Front Panel (fully populated)
1 ESD grounding port
3-10)
3 Supervisor modules (slots
1-2)
4 Linecard modules (slots
11-18)
5 Power supply modules
This Rear panel section displays the rear panel of all switches covered by this guide. DCS-7304 and DCS-7324 Rear Panel
2 Fabric modules
3 Fan modules
DCS-7308 and DCS-7328 Rear Panel
4 Power Supply Modules
This Line Card section displays the Line cards supported by modular switches covered by this guide. DCS-7300X-32Q-LC
1 Status LED 3 10G/40G Port LEDs
2 10G upper port LEDs 4 10G lower port LEDs DCS-7300X-64T-LC 2 10G upper port LEDs 4 10G lower port LEDs
DCS-7320X-32C-LC and DCS-7300X3-32C-LC
1 Status LED 3 QSFP 100G port LEDs
2 SFP 25G port LEDs 4 SFP 25G port LEDs
This section 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.