The AXSM-4-2488-XG ATM Switch Service Module is a Quad OC-48/STM-16, double-height service module for use in the Cisco MGX 8950 Next Generation Multiservice Switch. Used in combination with the high-capacity PXM45 processor and the XM-60 switching module it delivers high-density connectivity of 4 interfaces of OC-48/STM-16, either in a clear-channel format or as channelized to OC-12/STM-4, OC-3/STM-1, and DS-3.Up to 12 AXSM-4-2488-XG service modules can reside in the Cisco MGX 8950, to provide up to 48 OC-48/STM-16 interfaces to support service providers that require both high bandwidth and highest network availability. When used in the channelized mode, each service module can carry alternatively up to 64 DS-3 channels, 64 OC-3/STM-1 channels, 16 OC-12/STM-4 channels, or any combination of these 3 types adding up to 64 channels.