Arista SFP-10G-ER-Arista | 10G SFP+ Transceiver, Single-Mode, 40km, 1550nm, LC

Q: What is the maximum transmission distance for the SFP-10G-ER?
A: The SFP-10G-ER supports transmission distances up to 40 kilometers over OS1 or OS2 single-mode fiber using 1550nm wavelength technology, which experiences lower attenuation compared to shorter-wavelength optics.

Q: Can I use this transceiver with multimode fiber?
A: No, the SFP-10G-ER is designed exclusively for single-mode fiber (9/125µm). Using it with multimode fiber will result in severe modal dispersion and link failure. For multimode fiber applications, use SFP-10G-SR modules instead.

Q: Is this module compatible with other vendor equipment?
A: While this is an Arista-branded module optimized for Arista switches, 10GBASE-ER is a standards-based IEEE 802.3ae protocol. For use in mixed-vendor environments, verify compatibility with your specific hardware and ensure proper vendor coding if required.

Q: What precautions should I take for short-distance links?
A: When using the SFP-10G-ER for distances significantly shorter than 40km, optical attenuation (typically 5dB or greater) may be required to prevent receiver overload and potential damage. Always verify the receiver's optical input power specifications.

Q: Does this module support Digital Optical Monitoring?
A: Yes, the SFP-10G-ER includes Digital Optical Monitoring (DOM/DDM) functionality per SFF-8472, allowing real-time monitoring of optical power, temperature, voltage, and laser bias current for proactive link management.