Arista SFP-25G-LR-E | 25G SFP28 Transceiver, LR-Enhanced, SMF, 2km/10km FEC

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SKU:SFP-25G-LR-E

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Description

The Arista SFP-25G-LR-E is a 25GBASE-LR-Enhanced SFP28 E-Series transceiver for low-latency 25G Ethernet over duplex single-mode fibre. It operates at 1310 nm with an LC duplex connector and reaches up to 2 km without FEC for low latency, or up to 10 km with FEC enabled.

This E-Series optic suits data centre and campus links where latency matters but longer single-mode reach is still required. FEC is optional, so the same module can serve short low-latency runs or extended 10 km links. Transmit power is -4 to 2.0 dBm, with receive sensitivity specified for both FEC and non-FEC operation.

Features

- E-Series low-latency optic with optional FEC operation
- Up to 2 km over single-mode fibre without FEC for low latency
- Up to 10 km over single-mode fibre with FEC
- Duplex LC single-mode interface
- SFP28 form factor for high-density 25G ports

Warranty

Arista hardware products come with a 1-year limited hardware warranty, covering defects in materials and workmanship under normal use.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Arista products. Contact our team to explore options that align with your organisation's needs.
https://www.arista.com/assets/data/pdf/Warranty.pdf

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

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- PHY type: 25GBASE-LR-E (25GBASE-LR-Enhanced)
- Form factor: SFP28
- Data rate: 25 Gigabit Ethernet
- Wavelength: 1310 nm
- Connector: LC duplex
- Cable type: single-mode fibre (G.652)
- Max reach without FEC (low latency): 2 km
- Max reach with FEC: 10 km
- Tx power: -4 to 2.0 dBm
- Rx power without FEC: -7.2 to 2.0 dBm
- Rx power with FEC: -13.3 to 2.0 dBm

FAQs

Q: What reach does the SFP-25G-LR-E support?
A: It supports up to 2 km over single-mode fibre without FEC for low latency, or up to 10 km with FEC enabled.

Q: What fibre and connector does it use?
A: It uses duplex single-mode fibre (G.652) with an LC connector at 1310 nm.

Q: What is the difference between this and a standard 25GBASE-LR optic?
A: This is an E-Series 25GBASE-LR-Enhanced module that offers low-latency operation without FEC at shorter distances, with FEC available to extend reach to 10 km.

Q: Do I need to enable FEC?
A: FEC is optional. Leave it off for links up to 2 km where low latency is the priority, and enable it for links up to 10 km.

Q: What port type does this module fit?
A: It is an SFP28 form factor module intended for 25G SFP28 ports on compatible switches and network equipment.

Q: What are the optical power levels?
A: Transmit power is -4 to 2.0 dBm. Receive power is -7.2 to 2.0 dBm without FEC and -13.3 to 2.0 dBm with FEC.

Datasheet

This product has a detailed PDF datasheet available. Open PDF datasheet in a new tab .

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Arista SFP-25G-LR-E | 25G SFP28 Transceiver, LR-Enhanced, SMF, 2km/10km FEC