SFP-10G-SR-S-BCC | Cisco Compatible 10GB Multi-Mode 300m (10GBASE-SR) S-Class Enterprise Temp

Q: Will this work in place of the Cisco SFP-10G-SR-S?
A: Yes. This module is a drop-in compatible replacement for the Cisco SFP-10G-SR-S, matching the 10GBASE-SR standard, SFP+ form factor, 850nm wavelength, and 10.3125 Gbps data rate. It provides plug-and-play functionality in Cisco platforms that accept the SFP-10G-SR-S, with no configuration changes required.

Q: Which Cisco platforms support this transceiver?
A: This module works in any Cisco switch, router, or network device with SFP+ ports that support 10GBASE-SR optics. This includes Catalyst series switches, Nexus data center switches, and ASR routers with SFP+ slots rated for 10G Ethernet operation. Verify your specific platform documentation to confirm SFP+ port compatibility.

Q: What is the actual reach on OM3 versus OM4 fiber, and why does it vary?
A: OM3 fiber (2000 MHz-km modal bandwidth) supports up to 300 meters, while OM4 (4700 MHz-km) extends this to 400 meters. The difference is due to modal dispersion: higher-bandwidth fiber reduces signal spreading over distance. Actual reach also depends on link loss budget, connector quality, and patch cord attenuation. The 2-meter minimum distance applies per IEEE 802.3ae.

Q: Does this S-Class module support FCoE or other storage protocols?
A: No. The SFP-10G-SR-S designation indicates S-Class, which is optimized for Ethernet-only applications and does not support FCoE (Fibre Channel over Ethernet), OTN, or WAN-PHY. If you require FCoE for converged storage and data networks, use the standard SFP-10G-SR (non-S) variant instead. For pure 10 Gigabit Ethernet, this module is the cost-effective choice.

Q: Can I access DOM data to monitor link health, and what parameters are available?
A: Yes. This module supports Digital Optical Monitoring (DOM) via the I2C interface defined in SFF-8472. You can read real-time diagnostics including transmit optical power, receive optical power, transceiver temperature, laser bias current, and supply voltage. Access these parameters through your switch CLI or network management system to detect degrading fiber, marginal power budgets, or thermal issues before link failure occurs.