The Cisco 3631-CO is a robust 12inch/300mm deep, AC/DC, Network Equipment Building Systems (NEBS) Level 3/European Telecommunication Standards Institute (ETSI)-compliant network connectivity platform, specifically designed to optimize the operations support function of service provider networks.The Cisco 3631-CO is a versatile modular access platform ideally designed for small to medium-density telemetry applications. It significantly reduces the complexity and costs of managing mission critical operations: by integrating multiple Network Element (NE) management interfaces onto one operations support network access device. The Cisco 3631-CO streamlines service providers operations support functions by replacing legacy and 3rd party systems that are often plagued with fixed and inflexible architectures, often yielding limited interface and software support. The Cisco 3631-CO provides flexible / modular connectivity to legacy X.25, asynchronous/synchronous devices as well as Ethernet devices. The Cisco 3631-CO facilitates a graceful migration from cumbersome proprietary network support systems to an open standard, scalable and flexible Operations Support Network. In addition, Service Providers can use the Cisco 3631-CO in their numerous points of presence (POPs) or Central Office (CO) collocations for digital-subscriber-line access multiplexers (DSLAMs), Voice Switches and Transmission operations networking.The Cisco 3631-CO is two rack units 3.4 inches high, less than 12 inches (300mm) deep and 17 inches wide. The Cisco 3631-CO is equipped with two Network Module (NM) slots, and two WAN Interface Controller (WIC) slots, a built in Advanced Integration Module (AIM) slot (for enhanced processing capabilities), an integrated autosensing 10/100Mbps Ethernet port, and external AUX and Console ports. These slots, in tandem with the broad base of NMs and WICs yield unmatched versatility and growth capacity to a service provider. With the option of an AC or DC power source, the Cisco 3631-CO can be utilized in virtually any network application. Platform rear access cabling allows easy connectivity, and a modular design allows fast servicing of field-replaceable units (FRUs). Common language equipment identification (CLEI) coding is provided for easy identification and tracking. Robust network-management capabilities are achieved through CiscoWorks, CiscoView, and CiscoView Stack Management Interface applications. These applications are used to manage a large number of Cisco products that have already been deployed in existing networks, presenting network support personnel a familiar look and feel.