• 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, Single-Mode, 40km, 1310nm, LC

SFP-25G-ER

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Description

The Arista SFP-25G-ER is a 25GBASE-ER SFP28 optical transceiver designed for extended-reach connectivity over single-mode fiber. Delivering 25Gbps throughput at distances up to 40km using 1310nm wavelength, this module is ideal for metro network interconnects, extended enterprise campus links, and data center inter-building runs. Hot-swappable with Digital Optical Monitoring (DOM) support, it provides real-time diagnostics including temperature, voltage, bias current, and transmit/receive power levels for reliable network operations.

Features

25GBASE-ER Ethernet: Delivers 25.78Gbps data rate over extended distances up to 40km
- Single-Mode Fiber Optimized: 1310nm laser transmitter designed for duplex single-mode fiber deployment
- Extended Reach: Supports up to 40km transmission distance for metro and campus interconnects
- Digital Optical Monitoring (DOM): Real-time diagnostics of temperature, voltage, bias current, and transmit/receive power levels
- IEEE 802.3 Compliance: Fully compliant with IEEE 802.3by and IEEE 802.3cc 25G Ethernet standards
- SFP28 MSA Compliant: Conforms to SFP28 Multi-Source Agreement specifications for interoperability
- Hot-Swappable: Field-replaceable without interrupting network operations
- LC Duplex Connector: Industry-standard LC connector for single-mode fiber connectivity
- Interoperability: Compatible with IEEE-compliant 25G interfaces from multiple vendors
- Low Power Consumption: Energy-efficient design ideal for high-density data center and enterprise deployments
- CPRI and eCPRI Support: Suitable for telecom and radio access network applications
- RoHS Compliant: Environmentally friendly design meeting international standards

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

Form Factor: SFP28 (Small Form-Factor Pluggable 28)
- Data Rate: 25.78Gbps (25GBASE-ER)
- Wavelength: 1310nm
- Transmission Distance: Up to 40km over duplex single-mode fiber (SMF)
- Connector Type: LC duplex
- Fiber Type: Single-mode fiber (SMF)
- Optical Budget: 16dB minimum
- DOM/DDM: Digital Optical Monitoring (DOM) support for real-time diagnostics (temperature, voltage, bias current, transmit/receive power)
- Operating Temperature: 0°C to 70°C (standard commercial grade)
- Compliance: IEEE 802.3by, IEEE 802.3cc, SFP28 MSA, CPRI, eCPRI, RoHS
- Power Consumption: Low power consumption (typical SFP28 < 1.5W)
- Hot-Swappable: Yes

FAQs

Q: What is the maximum reach of the Arista SFP-25G-ER transceiver?
A: The SFP-25G-ER supports transmission distances up to 40km over duplex single-mode fiber using a 1310nm wavelength, making it suitable for metro network interconnects and extended enterprise campus deployments.

Q: Is the SFP-25G-ER compatible with 10G SFP+ optics?
A: Yes, Arista 25G SFP28 ports support 10G SFP+ optical modules. However, when connecting the SFP-25G-ER to fixed-rate 10G optics (such as 10G-LR), optical attenuation may be required to ensure the input power remains within allowable limits for the 10G module.

Q: Does this transceiver support Digital Optical Monitoring (DOM)?
A: Yes, the SFP-25G-ER supports full DOM/DDM functionality, enabling real-time monitoring of operating parameters including temperature, supply voltage, laser bias current, and transmit and receive optical power levels.

Q: Which Arista platforms support the SFP-25G-ER transceiver?
A: The SFP-25G-ER is designed for use in Arista network equipment featuring 25G SFP28 ports. For a complete list of supported platforms, line cards, and software versions, refer to the official Arista Transceiver and Cable Guide documentation.

Q: What type of fiber cable is required for this transceiver?
A: The SFP-25G-ER requires duplex single-mode fiber (SMF) with LC connectors. It is optimized for 1310nm wavelength transmission and delivers distances up to 40km, making it ideal for long-haul campus and metro applications.

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