Cisco 1 Port OC-3 Multimode ATM 155Mbit/s networking card

1 Port ATM OC-3c/STM1 Multimode Network Module, Enhanced Performance The ATM-25 network module provides ATM traffic shaping for use with asymmetric digital subscriber line (ADSL) uplink speeds, and protocol support for permanent virtual circuit (PVC) environments. The network module provides full support for multiprotocol encapsulation over ATM Adaptive Layer 5 (RFC 1483), classic IP over ATM encapsulation (RFC 1577), and Point-to-Point Protocol (PPP) over ATM.