Lot of (2) Cisco WIC-1DSU-56K - 1 PORT Modem 4-Wire 56/64k Interface Cards For Sale
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Lot of (2) Cisco WIC-1DSU-56K - 1 PORT Modem 4-Wire 56/64k Interface Cards
Price: US $19.99
The Cisco WIC-1DSU-56K is a legacy 1-port digital service unit/channel service unit (DSU/CSU) WAN Interface Card used to connect Cisco routers to 56-kbps or 64-kbps digital lines.Core Specifications
Interface: 1-port 4-wire synchronous serial.
Speed: Supports 56 kbps (dedicated or dial-up) and 64 kbps (switched) transmission rates.
Connector: RJ-45 port.
Protocol Support: Synchronous PPP, Frame Relay, and HDLC encapsulation.
Key Applications
Legacy WAN Connectivity: Provides point-to-point connections for older branch office networks.
Telemetry & Out-of-Band Management: Ideal for low-bandwidth monitoring, SCADA systems, or backup remote access lines.
Lab Environments: Frequently used by network students or engineers to simulate low-speed serial links.
Router CompatibilityThis card integrates directly into the network module slots of several classic Cisco modular router series:
