Cisco SFP-50G-LR-S - 25/50GBASE-LR SFP56 Module for SMF

Cisco Part Number: SFP-50G-LR-S -  is a Cisco 25/50GBASE-LR SFP56 Module for SMF

The Cisco SFP-50G-LR-S is a 25/50GBASE-LR SFP56 module designed for single-mode fiber (SMF) with a G.652 fiber type. It supports link lengths of 10 km at 50G and 15 km at 25G. For 50G operation, the module requires KP1-FEC on the host ports, and for 25G operation, it requires KR1-FEC on the host ports. The module operates at a wavelength of 1310 nm and has a maximum power consumption of 1.5 W. The bail latch color for this module is blue, which helps in physical identification ¹.

In summary:

• Type: 25/50GBASE-LR SFP56 Module
• Fiber: Single-Mode Fiber (SMF), G.652
• Wavelength: 1310 nm
• Link Length: 10 km (50G), 15 km (25G)
• FEC Requirements: KP1-FEC for 50G, KR1-FEC for 25G
• Power Consumption: 1.5 W
• Bail Latch Color: Blue

This module is suitable for long-reach applications over single-mode fiber and is part of Cisco's 50GBASE SFP56 transceiver portfolio