SFP-10G-ER-BCC | Cisco Compatible 10GB Single-Mode ER - 40km (10GBASE-ER)

Q: Will this work in place of the Cisco SFP-10G-ER?
A: Yes. The SFP-10G-ER-BCC is electrically and optically compatible with the Cisco SFP-10G-ER. Both modules conform to IEEE 802.3ae 10GBASE-ER, operate at 1550nm wavelength, support 10.3125 Gbps data rate, and use the SFP+ form factor with LC connectors. This module is plug-and-play in any Cisco SFP+ port that accepts the original part.

Q: Which Cisco platforms support this transceiver?
A: This module works in Cisco switches and routers with SFP+ ports supporting 10 Gigabit Ethernet, including Catalyst, Nexus, ASR, and ISR series platforms. Verify your specific platform supports 10GBASE-ER optics by checking the Cisco 10 Gigabit Ethernet Transceiver Modules Compatibility Matrix or your platform datasheet for SFP+ module support.

Q: What fiber type and quality is required to reach the full 40km distance?
A: This module requires OS2 single-mode fiber (ITU-T G.652 compliant) with duplex LC connectors. Actual reach depends on fiber attenuation, splice loss, connector quality, and the module's 14 dB optical power budget. Clean, low-loss fiber with typical 0.3 dB/km attenuation at 1550nm supports the full 40km span. Higher attenuation or dirty connectors reduce usable distance.

Q: How do I access the DOM diagnostic parameters on this module?
A: DOM data is accessible via the SFF-8472 two-wire serial interface (I2C) at memory addresses A0h (module identification) and A2h (diagnostic monitoring). Cisco IOS and NX-OS expose these parameters through CLI commands such as 'show interface transceiver' or 'show interface transceiver details'. You can monitor transmit power, receive power, temperature, laser bias current, and supply voltage in real time.

Q: Can I mix this module with 10GBASE-LR modules on the same network?
A: No. The SFP-10G-ER operates at 1550nm wavelength, while 10GBASE-LR modules operate at 1310nm. Both ends of the fiber link must use transceivers with matching wavelengths and reach specifications. Mixing ER and LR modules on the same link will result in no optical signal reception due to wavelength mismatch. Use matched pairs of either ER or LR modules.