The Cisco SFP-10G-LR (Small Form-Factor Pluggable 10 Gigabit Ethernet Long-Range) transceiver operates over single-mode fiber and typically uses a wavelength of 1310nm. This transceiver is designed for long-range connections in 10 Gigabit Ethernet networks.

Key specifications of the Cisco SFP-10G-LR transceiver include:

• Data Rate: 10 gigabits per second (Gbps)

• Wavelength: 1310nm

• Fiber Type: Single-mode fiber (SMF)

• Maximum Reach: Up to 10 kilometers (approximately 6.2 miles)

It's important to note that these specifications are typical for the Cisco SFP-10G-LR, but variations or updates may occur. Always refer to the specific datasheet or product documentation provided by Cisco or the transceiver manufacturer for the most accurate and up-to-date information.

When connecting networking equipment, it's crucial to ensure compatibility between transceivers on both ends of the link and to adhere to the recommended fiber type and specifications for optimal performance.