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Arista

Arista SFP-25G-ER-Arista | 25G SFP28 Transceiver, 25GBASE-ER, SMF, 40km, LC

SFP-25G-ER-Arista

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Description

This 25GBASE-ER SFP28 transceiver from Arista's 25G SFP optics range delivers 25 Gigabit Ethernet over duplex single-mode fibre at distances of up to 40 km. It suits long-reach data centre interconnect, campus backbone and metro links where multimode or short-reach optics cannot span the distance.

The module operates at 1310 nm over SMF G.652 fibre and terminates in a duplex LC connector. Transmit power is -3 to +6 dBm and receive power is -21 to -4 dBm, with a maximum power consumption of 2 W drawn from the host switch SFP28 port. Because of the high transmit power, proper optical attenuation is required on shorter links to protect the receiver from permanent damage.

It is intended for Arista switches and platforms with SFP28 (25G SFP) ports. Arista notes that some 25G optics are supported only on specific platforms, so check the Arista Transceiver and Cable Guide for the platform you are using. The module is hot swappable, so it can be installed or replaced without powering down the switch.

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

Features

- Extends 25G Ethernet reach to 40 km over duplex single-mode fibre
- Hot swappable to maximise uptime and simplify serviceability
- SFP form factor is the smallest, lowest-power option for 1G to 25G speeds
- Part of Arista's broad optics portfolio, with flexibility of media and interface choice on a port-by-port basis
- Duplex LC connector for standard single-mode patching
- Low 2 W maximum power draw per module

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

- PHY type: 25GBASE-ER
- Form factor: SFP (SFP28)
- Connector type: LC (duplex)
- Wavelength: 1310 nm
- Cable type: SMF G.652
- Maximum reach: 40 km
- Tx power: -3 to +6 dBm
- Rx power: -21 to -4 dBm
- Maximum power consumption: 2 W
- 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
- IEEE compliance: 802.3 Ethernet
- MSA/standards compliance: SFP+ SFF-8431, 8461 and 8472; GR-20-CORE; GR-326-CORE; GR-1435-CORE

FAQs

Q: Which switches does this transceiver work with?
A: It is designed for Arista switches and platforms with SFP28 (25G SFP) ports. Some 25G optics are supported only on specific platforms, so confirm your model in Arista's Transceiver and Cable Guide.

Q: What fibre does it need?
A: It runs over duplex single-mode fibre (SMF G.652) at 1310 nm with LC connectors, and reaches up to 40 km.

Q: Do I need an attenuator on short links?
A: Yes. Proper optical attenuation is required on shorter links to protect the receiver from permanent damage, as the transmit power is -3 to +6 dBm.

Q: How much power does it draw?
A: A maximum of 2 W per module, supplied by the host switch SFP28 port.

Q: Is SFP28 the same as 25G SFP?
A: Yes. SFP28 and 25G SFP refer to the same form factor, and the module is hot swappable.

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