Cisco 1-Port 56-/64-kbps WAN Interface Card for DDS Networks

The Cisco HWIC-1DSU-56K4= is a 1-port WAN interface card designed to provide reliable connectivity for digital data service (DDS) and 4-wire switched 56-kbps networks. It fits into HWIC slots on compatible Cisco routers, making it easy to integrate into existing network setups without adding external devices. This card supports synchronous data transfer rates up to 64 kbps, ensuring steady and secure communication for point-to-point or multipoint network configurations.

Its internal form factor helps maintain a clean and organized network environment, which is especially useful in office or data center settings where space and cable management matter. The RJ-48 modem interface allows straightforward connection to DDS lines, making it a practical choice for businesses that rely on dedicated digital circuits for their communications. Whether you need to maintain legacy network connections or support specific digital services, this interface card offers a dependable solution that fits naturally within Cisco’s hardware ecosystem.

Highlights:

• 1-Port 56-/64-kbps CSU/DSU WAN interface
• Supports DDS and 4-wire switched networks
• Internal form factor for seamless integration
• RJ-48 modem interface for easy connection
• Compatible with HWIC slots on Cisco routers
• Maximum data transfer rate of 64 Kbps