• Silver-colored arista sfp-25g-er sfp28 transceiver modules with blue handles and metallic connectors for 25g single-mode use
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Arista

Arista SFP-25G-ER | 25G SFP28 Transceiver, 25GBASE-ER, SMF, 40km, 1310nm

SFP-25G-ER

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Description

The SFP-25G-ER is a 25GBASE-ER SFP28 optical transceiver that carries 25 Gigabit Ethernet over duplex single-mode fibre for distances up to 40 km. It uses a standard LC duplex connector at 1310 nm and suits long-reach 25GbE links such as campus, metro, inter-building and inter-data-centre connections.

The module is part of the Arista 25G SFP28 optics range, alongside SR, MR-SR, MR-XSR, SR-E, LR, MR-LR and LR-E options, with the ER variant delivering the longest reach. 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 SFP28 port. It is hot-pluggable, runs over G.652 single-mode fibre, and operates across a case temperature range of 0 to 70 C.

It fits 25G SFP28 ports on supported Arista platforms. Check the Arista Transceiver and Cable Guide for platform support, and use optical attenuation on shorter links to protect the receiver from damage.

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

Features

- 25GBASE-ER reach of up to 40 km over duplex single-mode fibre
- Standard LC duplex connector for easy patching
- Hot-pluggable SFP28 form factor
- Low 2 W maximum power consumption
- Suited to campus, metro and inter-data-centre links
- Part of the Arista 25G SFP28 optics range

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

- PHY type: 25GBASE-ER
- Form factor: SFP28
- Connector type: LC duplex
- Wavelength: 1310 nm
- Cable type: Single-mode fibre (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 compliance: SFF-8431, SFF-8461 and SFF-8472

FAQs

Q: What is the maximum reach of this transceiver?
A: It supports 25GBASE-ER links of up to 40 km over duplex single-mode fibre (G.652) at 1310 nm.

Q: Do I need attenuation on short links?
A: Yes. Proper optical attenuation is required on shorter links to protect the receiver from permanent damage, as the receive power range tops out at -4 dBm.

Q: Which ports and platforms does it work with?
A: It fits 25G SFP28 ports on supported Arista platforms. Check the Arista Transceiver and Cable Guide for the exact platform support list.

Q: What power does the module draw?
A: Maximum power consumption is 2 W, supplied by the host SFP28 port. No separate power supply or PoE is needed.

Q: How does ER differ from the LR variants in this range?
A: ER is the extended-reach option at 40 km over single-mode fibre, while the LR options in the same range cover shorter single-mode distances.

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