The Cisco Coarse Wave Division Multiplexing (CWDM) Gigabit Interface Converter (GBIC) Solution allows enterprise companies and service providers to provide scalable and easy-to-deploy Gigabit Ethernet services in their networks. The product set enables the flexible design of highly available multiservice networks. The Cisco CWDM GBIC Solution offers a convenient and cost-effective solution for the adoption of Gigabit Ethernet in campus, data center, and metropolitan-area access networks. The Cisco CWDM GBICs fit into standard GBIC ports supporting the IEEE 802.3z standard on the supported Cisco platforms. The Cisco CWDM GBICs do not require configuration.The Cisco CWDM GBICs are designed for use in Cisco Catalyst 2900 Series with CatOS 7.2(1) - WS-C2948G, WS-C2980G-A; Cisco Catalyst 2950 Series with Cisco IOS Software Release 12.1(9)EA1 - WS-C2950G-12-EI, WS-C2950G-24-EI, WS-C2950G-24-EI-DC, WS-C2950G-48-EI; Cisco Catalyst 3550 Series with Cisco IOS Software Release 12.1(9)EA2 - WS-C3550-24-SMI, WS-C3550-24-EMI, WS-C3550-24-DC-SMI, WS-C3550-24-FX-SMI, WS-C3550-48-SMI, WS-C3550-48-EMI, WS-C3550-12G, WS-C3550-12T; Cisco Catalyst 4000 Series with CatOS 7.2 (1) - WS-X4232-GB-RJ, WS-X4306-GB, WS-X4412-2GB-T, WS-X4418-GB, WS-X4013, WS-X4014, WS-C4912G, Cisco Catalyst 6500 Series with CatOS 7.2 (2)3 - WS-X6K-SUP1-2GE, WS-X6K-SUP1A-2GE, WS-X6K-SUP1A-PFC, WS-X6K-SUP1A-MSFC, WS-X6K-SUP1A-MSFC2, WS-X6K-S2-PFC2, WS-X6K-S2-MSFC2, WS-X6K-S2U-MSFC2, WS-X6408-GBIC, WS-X6408A-GBIC, WS-X6416-GBIC, WS-X6516-GBIC, WS-X6816-GBIC.