SFP-10G-LR-Arista-BCC | Arista Compatible 10GB Single-Mode 10km (10GBASE-LR)

Q: Will this work in place of the Arista SFP-10G-LR-ARISTA?
A: Yes. This module is designed as a plug-and-play drop-in replacement for the Arista SFP-10G-LR-ARISTA. It conforms to the same IEEE 802.3ae 10GBASE-LR standard, uses the same SFP+ form factor, operates at 10.3125 Gbps over single-mode fibre at 1310nm, and supports the same 10km reach specification. The module will initialise and operate identically in Arista platforms requiring 10GBASE-LR connectivity.

Q: Which Arista platforms support this transceiver?
A: This transceiver is compatible with Arista switches and routers featuring SFP+ ports that support 10GBASE-LR optics. The module adheres to SFF-8431 electrical and SFF-8432 mechanical specifications, ensuring compatibility with standards-compliant SFP+ slots. For platform-specific validation or questions about a particular Arista model, contact Blue Cable Co with your switch or router model number.

Q: What single-mode fibre type is required for 10km transmission?
A: This transceiver requires OS1 or OS2 compliant single-mode fibre (G.652 standard). The 1310nm wavelength and typical optical power budget of 8 to 11 dB support up to 10km transmission over duplex SMF with LC connectors. Actual reach depends on fibre quality, splice loss, connector insertion loss, and total link attenuation. Use clean, low-loss fibre and connectors to achieve rated distance.

Q: How do I access DOM data to monitor link health?
A: Digital Optical Monitoring is accessible via the SFF-8472 two-wire serial interface. Most Arista network operating systems expose DOM parameters through CLI commands or management interfaces, displaying real-time transmit power, receive power, module temperature, supply voltage, and laser bias current. These telemetry values assist with link troubleshooting, verifying optical budgets, and identifying degraded fibre or connector issues before complete link failure.

Q: Can this module be used in a mixed-vendor 10GBASE-LR link?
A: Yes. Because this transceiver conforms to IEEE 802.3ae 10GBASE-LR, it is designed to interoperate with other standards-compliant 10GBASE-LR modules regardless of vendor. The standard defines wavelength, optical power levels, and receiver sensitivity to ensure compatibility. Verify that both link ends meet 10GBASE-LR specifications, use clean single-mode fibre, and confirm total link loss is within the optical power budget for reliable cross-vendor operation.