• Silver-colored arista dcs-7804r4-fm rack-mounted network switches with ports and ventilation slots for 7804 chassis
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Arista

Arista DCS-7804R4-FM | 7800R4 Fabric Module for 7804 Chassis, Slots 1-5

DCS-7804R4-FM

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Description

The DCS-7804R4-FM is a fabric module for the Arista 7804 modular chassis in the 7800R4 Series data centre switch router family. It supplies the cell-spraying switching fabric that links the supervisors and line cards, and suits large-scale cloud and data centre builds, AI and compute cluster spines, data centre interconnect, peering and service provider backbones.

This module installs in fabric slots 1-5 of the 7804 chassis. Slot 6 uses the DCS-7804-FCM fabric cooling module instead. Typical power draw is 308 W, rising to 424 W at maximum, with the typical figure measured at 25 C ambient and 50% load on all ports. The module measures 2.5 x 12.4 x 23.70 in (6.4 x 31.4 x 60.1 cm), weighs 21 lbs (9.5 kg) and includes four user-serviceable fan modules. Graceful degradation redundancy is supported.

It works with the DCS-7804 chassis alongside 7800R4 Series line cards and supervisors. It is not interchangeable with the 7808R4-FM, 7812R4-FM or 7816LR4-FM fabric modules, so match it to the 7804 chassis only.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Cell-spraying fabric for 100% efficiency in a fully scheduled lossless VOQ architecture
- Graceful fabric module redundancy
- User-serviceable fan modules
- Supports 7800R4 line cards with 100G, 200G, 400G and 800G modes
- Required in fabric slots 1-5 of the 7804 chassis

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Model: DCS-7804R4-FM
- Product type: Fabric module
- Chassis support: DCS-7804, fabric slots 1-5
- Typical power: 308 W
- Maximum power: 424 W
- Typical power measured at: 25 C ambient with 50% load on all ports
- Dimensions (HxWxD): 2.5 x 12.4 x 23.70 in (6.4 x 31.4 x 60.1 cm)
- Weight: 21 lbs (9.5 kg)
- User-serviceable fans: Yes, 4 fan modules
- Redundancy: Graceful degradation supported
- Operating temperature (7800R4 Series): 0 to 40 C (32 to 104 F)
- Storage temperature (7800R4 Series): -40 to 70 C (-40 to 158 F)

FAQs

Q: Which chassis and slots does this fabric module fit?
A: It fits the Arista DCS-7804 chassis in fabric slots 1-5. Slot 6 uses the DCS-7804-FCM fabric cooling module.

Q: Can I use it in a 7808, 7812 or 7816 chassis?
A: No. It is not interchangeable with the 7808R4-FM, 7812R4-FM or 7816LR4-FM fabric modules. Each chassis uses its own fabric module.

Q: How much power does each module draw?
A: Typical power is 308 W and maximum is 424 W per module. The typical figure is measured at 25 C ambient with 50% load on all ports.

Q: Which line cards does it work with?
A: It works with 7800R4 Series line cards and supervisors in the DCS-7804 chassis, including 100G, 200G, 400G and 800G modes.

Q: Are the fans serviceable?
A: Yes. The module has four user-serviceable fan modules.

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