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Arista

Arista SFP-10G-RA-1G-SX-Arista | 10G to 1G Rate-Adapting SFP+ Transceiver, 1000BASE-SX, MMF, 550m

SFP-10G-RA-1G-SX-Arista

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Description

This rate-adapting SFP+ transceiver plugs into 10G SFP+ switch ports and presents a 10G host interface with a 1000BASE-SX optical interface. It lets 1G multimode fibre links run on switches that do not natively support 1G operation, which suits campus and data centre migrations where legacy 1G devices are still in service.

The optical side runs at 850nm over duplex LC multimode fibre. Reach depends on the fibre: 220m on 62.5um 160 MHzkm, 275m on 62.5um 200 MHzkm, 500m on 50um 400 MHzkm, and up to 550m on 50um 500 MHzkm (OM2). It supports internal Clause 37 auto-negotiation and draws a maximum of 2W from the host port, with no external power supply. It is the multimode counterpart to the single-mode SFP-10G-RA-1G-LX, which uses 1000BASE-LX at 1310nm.

No licence or subscription is required. It is supported only on specific Arista platforms and needs EOS 4.29.1 or later. Check the platform list in the Arista Transceiver and Cable Guide before ordering.

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

Features

- Rate adapts 10G on the host switch side to 1G on the line side, and 1G back to 10G in the receive direction
- Enables 1000BASE-SX on switches that do not natively support 1G operation
- Internal Clause 37 auto-negotiation support
- Reaches up to 550m over multimode fibre
- Duplex LC connector for standard multimode patching
- Hot swappable to simplify serviceability and maximise uptime
- Draws power from the host SFP+ port, no external supply needed

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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specs-tabs

Technical Specifications

FAQs

Technical Specifications

- Form factor: SFP+
- Host interface: 10G XFI
- Media interface: 1000BASE-SX, 1G
- PHY type: 1000BASE-SX to 10G rate adapting
- Wavelength: 850nm
- Fibre type: Multimode (MMF)
- Connector: LC
- Maximum reach, 62.5um 160 MHzkm: 220m
- Maximum reach, 62.5um 200 MHzkm: 275m
- Maximum reach, 50um 400 MHzkm: 500m
- Maximum reach, 50um 500 MHzkm: 550m
- Tx power: -9.5 to -4.0 dBm
- Rx power: -17 to 0.0 dBm
- Maximum power consumption: 2W
- Auto-negotiation: Internal Clause 37
- Dimensions (H x W x D): 8.55 x 13.7 x 56.5 mm
- Operating case temperature: 0 to 70 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 10,000 ft
- Minimum EOS release: 4.29.1

FAQs

Q: Does this transceiver need a licence or subscription?
A: No. It requires no licence or subscription. It does need Arista EOS 4.29.1 or later on a supported platform.

Q: Which switches is it compatible with?
A: It is supported only on specific Arista platforms, listed in table 11.2 of the Arista Transceiver and Cable Guide. It plugs into 10G SFP+ ports and needs EOS 4.29.1 or later.

Q: What fibre and distance does it support?
A: It uses duplex LC multimode fibre at 850nm. Reach ranges from 220m on 62.5um fibre up to 550m on 50um 500 MHzkm (OM2) fibre.

Q: How does it differ from the SFP-10G-RA-1G-LX?
A: This SX model uses 1000BASE-SX over multimode fibre at 850nm, up to 550m. The LX model uses 1000BASE-LX over single-mode fibre at 1310nm, up to 10km.

Q: How much power does it draw?
A: A maximum of 2W, drawn from the host SFP+ port. No external power supply is needed.

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