The Cisco 6160 is a 32-slot, multiport line-card architecture that supports industry-standard asymmetric digital subscriber line (ADSL), and high-speed symmetric digital subscriber line (SHDSL) line technologies. Targeting North American central-office environments, the Cisco 6160 is fully compliant with relevant Network Equipment Building Standards (NEBS), American National Standards Institute (ANSI), and ATM carrier-class network-element standards. Network transmission connections include DS3, 8xT1 inverse multiplexing over ATM (IMA), OC-3c single mode, and OC-3c multimode. Up to 256 ports per chassis can be provisioned with ADSL (discrete multitone [DMT]), G.shdsl. A variety of configuration and cabling options are available to support a mix of xDSL services within a common chassis. For "above voice-band" or "line sharing" ADSL applications, the Cisco 6160 can also be used with various third-party Plain Old Telephone Service (POTS) splitters.The Cisco 6160 provides an evolution path from today's unspecified bit rate (UBR)-oriented Internet access service model, popular for most high-volume consumer DSL service rollouts, to a comprehensive UBR, constant bit rate (CBR), nonreal-time variable bit rate (VBR-nrt), real-time variable bit rate (VBR-rt), and available bit rate (ABR) class of service (CoS) family required for the growing demands of telecommuter and business customers with mission-critical applications. In addition to supporting industry-leading traffic management through I.371-compliant policing, extensive-output queue buffering, and virtual path (VP)-granularity shaping, the Cisco 6160 platform can provide the kind of robust ATM capabilities typically found only in edge-switch or higher-class products. Individual rate schedulers can support up to 3328 ports with a subtended configuration, allowing network providers to extract maximum value from each network trunk connection without creating the "parking lot" problem characteristic of first-generation DSLAM architectures.The Cisco 6160 is deployed with Network Interface Card (NI-2) based common cards, which can be managed via the Cisco DSL Manager. The Cisco DSL Manager network management system is a complete Simple Network Management Protocol (SNMP)-based element management system with fault, configuration, and performance reporting capabilities.