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Cisco HWIC-1DSU-56K4-RF CSU/DSU WAN Interface Card - 1 x RJ-48S Serial Synchronous Port for 2900/1900 Series Routers

SKU: HWIC-1DSU-56K4-RF
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MSRP: $797.95
$797.95
$515.99
Save: $281.96 (35.34%)
Warranty Information: Covered by Manufacturer
Condition: New
Width: 1.23 (cm)
Height: 1.23 (cm)
Depth: 1.23 (cm)

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Product Features

Description

Product Overview

The Cisco HWIC-1DSU-56K4-RF is a CSU/DSU WAN Interface Card designed to provide reliable serial synchronous connectivity for wide area network deployments. This remanufactured module integrates seamlessly into compatible Cisco router platforms, offering a cost-effective solution for extending network infrastructure over dedicated serial links.

Equipped with a single RJ-48S port, this interface card supports serial network technology, making it suitable for legacy or specialized WAN connections that require precise timing and data integrity. Its compact form factor allows for efficient use of router slot space while delivering the necessary functionality for point-to-point or multipoint serial communications.

Optics
Serial
Link Speed
RJ-48S2900 Series Integrated Services Routers 1900 Series Integrated Services Routers
Module Format and Compatibility
Compatibility2900 Series Integrated Services Routers, 1900 Series Integrated Services Routers
Port and Connectivity
Total Ports1
Connector TypeRJ-48S
Network TechnologySerial
Product Details
Part NumberHWIC-1DSU-56K4-RF
ConditionRemanufactured

Technical Overview

This WAN module operates with serial network technology, ensuring stable data transmission for applications that depend on synchronous communication. The RJ-48S connector provides a standardized interface for connecting to serial WAN circuits, supporting configurations that require dedicated bandwidth and low latency.

The card is engineered for compatibility with Cisco 2900 Series and 1900 Series Integrated Services Routers, enabling network administrators to expand WAN capabilities without replacing entire router systems. Its design focuses on interoperability with existing Cisco hardware ecosystems, simplifying integration into current network topologies.

Port Count1
ConnectorRJ-48S
Network TechSerial
WAN ModuleSerial SynchronousCisco Compatible

Key Product Advantages

The HWIC-1DSU-56K4-RF offers distinct benefits for network deployments requiring serial WAN connectivity. Its remanufactured status provides a reliable, budget-friendly alternative to new hardware, while maintaining full functionality for critical network operations.

Router Compatibility

Designed specifically for Cisco 2900 and 1900 Series Integrated Services Routers, this card ensures seamless integration and reduces compatibility concerns during network upgrades or expansions.

  • Direct slot insertion
  • No additional drivers needed
  • Supported in Cisco IOS configurations

Serial Connectivity

The RJ-48S port delivers robust serial synchronous WAN connections, ideal for legacy systems, dedicated circuits, or environments where Ethernet alternatives are not feasible.

  • Synchronous data transmission
  • Standardized connector
  • WAN circuit support

Deployment / Use Cases

This interface card is particularly valuable in scenarios where organizations need to maintain or establish serial WAN links without investing in entirely new router hardware. It serves as a practical component for network extensions, branch office connectivity, or specialized industrial applications that rely on serial protocols.

Common deployment environments include financial institutions with legacy serial connections, manufacturing facilities using serial-based SCADA systems, and educational or government networks that require backward compatibility with existing serial infrastructure. The module enables these organizations to leverage their current Cisco router investments while meeting specific WAN connectivity requirements.

Ports 1
[custom-highlights]

Highlights

  • Cisco HWIC-1DSU-56K4-RF CSU/DSU WAN Interface Card
  • 1 x RJ-48S serial synchronous WAN port
  • Compatible with 2900 Series Integrated Services Routers
  • Compatible with 1900 Series Integrated Services Routers
  • Serial network technology for reliable data transmission
  • Remanufactured condition for cost-effective deployment
  • WAN module form factor for router slot integration
  • Ideal for legacy or specialized serial connectivity needs
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerCisco Systems, Inc
Manufacturer Part NumberHWIC-1DSU-56K4-RF
Brand NameCisco
Product ModelHWIC-1DSU-56K4
Product NameCSU/DSU WAN Interface Card
Product ConditionRemanufactured
Product TypeWAN Module
Technical Information
Application/UsageWide Area Network
Interfaces/Ports
Total Number of Ports1
Connector TypeRJ-48S
Interfaces/Ports Details1 x RJ-48S Serial Synchronous WAN
Media & Performance
Network TechnologySerial
Miscellaneous
Compatibility2900 Series Integrated Services Routers 1900 Series Integrated Services Routers
[/custom-specifications][custom-faq]

FAQ

What routers are compatible with the HWIC-1DSU-56K4-RF?

The HWIC-1DSU-56K4-RF is compatible with Cisco 2900 Series Integrated Services Routers and 1900 Series Integrated Services Routers. This ensures seamless integration into existing Cisco network environments without requiring hardware replacements.

What type of port does this WAN interface card have?

This card features a single RJ-48S port for serial synchronous WAN connections. The RJ-48S connector is standard for serial interfaces, supporting dedicated WAN circuits that require synchronous data transmission.

What is the network technology supported by this module?

The module supports serial network technology, which is essential for WAN connections that depend on precise timing and stable data transfer. This makes it suitable for legacy systems or applications where serial protocols are required.

[/custom-faq]
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Cisco HWIC-1DSU-56K4-RF CSU/DSU WAN Interface Card - 1 x RJ-48S Serial Synchronous Port for 2900/1900 Series Routers
MSRP: $797.95
$797.95
$515.99
Save: $281.96 (35.34%)
Out of stock