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The Cisco 1-Port 56k DSU-CSU Card WIC is designed to enable synchronous serial communication over digital WAN links. It provides a dedicated connection point for 56 kbps data transmission, often found in environments where legacy digital services are still in use.

Built for Cisco routers with WIC slots, this card is commonly used in small to medium-sized business networks and branch offices to connect to digital service providers. Network administrators and IT professionals benefit from its straightforward setup and reliable performance in maintaining legacy network infrastructure.

Key Features

• Offers a single serial port supporting 56 kbps synchronous data transfer
• Compatible with a wide range of Cisco routers using WIC interfaces
• Ensures stable digital signal termination with DSU/CSU functionality
• Facilitates connection to standard digital WAN lines
• Supports easy installation and configuration within existing setups

Typically deployed in office environments that require digital access services, this card plays a key role in maintaining network connectivity where higher-speed links are not necessary or available. It helps keep older digital circuits operational without complicated equipment.