Cisco C9400-LC-24S | Catalyst 9400 24-Port Gigabit SFP Line Card Module

Q: What is the difference between C9400-LC-24S and C9400-LC-24XS?
A: The C9400-LC-24S supports 1G SFP modules only for Gigabit Ethernet connectivity, while the C9400-LC-24XS supports both 10G SFP+ and 1G SFP modules, providing higher-speed fiber connectivity options for aggregation and backbone applications.

Q: Does the C9400-LC-24S support Power over Ethernet?
A: No, the C9400-LC-24S is a data-only line card with SFP fiber ports and does not provide PoE capability. For PoE support in the Catalyst 9400 Series, consider copper line cards such as the C9400-LC-48U or C9400-LC-48P.

Q: Which Catalyst 9400 chassis models support this line card?
A: The C9400-LC-24S is compatible with all Catalyst 9400 chassis models including the C9404R (4-slot), C9407R (7-slot), and C9410R (10-slot) chassis, providing flexibility for different deployment sizes.

Q: What types of SFP modules are compatible with this line card?
A: The C9400-LC-24S supports standard Gigabit Ethernet SFP transceivers including Cisco SFP-GE-S (short range), SFP-GE-L (long range), bidirectional SFPs, and select third-party Gigabit SFP modules with compatible firmware.

Q: What are typical use cases for the C9400-LC-24S?
A: This line card is ideal for fiber-to-the-desk (FTTD) deployments, campus fiber aggregation, secure uplinks requiring MACsec encryption, and connecting distribution layer switches or access points via fiber in enterprise and service provider networks.