Cisco MGX 8220 is a standards-based, integrated ATM edge concentrator that provides aggregation of a variety of services to a standard ATM User-Network Interface (UNI) or Network-to-Network Interface (NNI) port. The MGX 8220 edge concentrator can be used as an integrated or remote adjunct shelf for Cisco's ATM switch product lines. In addition, it can serve as a standalone unit that aggregates traffic for transmission to and from an ATM network.The Cisco MGX 8220 adapts incoming data to 53-byte ATM cells using industry-standard ATM Adaptation Layers (AAL) for transport over the ATM network. By integrating narrowband and broadband interfaces on a single platform, service providers can fully utilize the node capacity, incrementally expand capacity as needed, and cost-effectively provide services to an almost unlimited number of subscribers.