Network Switch Module Cisco C9400-LC-48S Gigabit Ethernet

The Cisco C9400-LC-48S is a Gigabit Ethernet line card module for the Cisco Catalyst 9400 Series chassis, offering 48 SFP ports for fiber connectivity. Designed for enterprise access and aggregation, the module supports multiple IEEE standards and fits into the Catalyst 9400 platform to deliver high system bandwidth, flexible port density and advanced routing and SD‑Access capabilities when deployed in campus networks.

Advantages

The module provides 48 SFP ports in a compact line card, enabling fiber-based 1G links and integration with the Catalyst 9400 architecture. It is compatible with the series’ high-availability features and modular redundancy, supports relevant IEEE standards for reliable operation, and offers long operational life indicated by a high MTBF figure. The design allows the unit to be used where high port counts, enterprise-grade resiliency and scalable performance are required.

Suitable for

• Enterprise access and aggregation switches in campus networks
• Fiber uplinks and distribution to access-layer devices
• Deployments requiring high port density with 1G SFP connectivity
• Environments that use Catalyst 9400 chassis for SD-Access and advanced services

Key specifications

• Model: Cisco C9400-LC-48S
• Port type and count: 48 × SFP (1G) ports
• Supported standards: IEEE 802.3z, 802.3x, 802.3bt
• Mean Time Between Failures (MTBF): 937,600 hours
• Compatible platform: Cisco Catalyst 9400 Series chassis
• Use case: Gigabit fiber connectivity for access/aggregation

How to use

Install the C9400-LC-48S line card into a compatible Cisco Catalyst 9400 chassis per the chassis installation instructions. Populate SFP transceivers appropriate to the fiber type and required link distances, then connect fiber cables to the SFP ports. Configure switching, VLANs, and routing on the Catalyst operating system according to your network design. Ensure firmware and software versions on the chassis are compatible with the module model.

Recommendations

Install the module in a properly ventilated chassis bay, use Cisco‑qualified SFP optics, and follow Catalyst 9400 platform guidelines for redundancy and power. Verify software compatibility and apply recommended configuration templates for SD‑Access or aggregation deployments.