HWIC-1DSU-56K4 | Cisco 1-Port 4-Wire 56/64kbps CSU/DSU WAN Interface Card
Cisco · Industrial Automation & Electrical
Description The Cisco HWIC-1DSU-56K4 is a 1-port 4-wire CSU/DSU WAN interface card that provides synchronous serial connectivity at 56 or 64 kbps. It performs both Channel Service Unit (CSU) and Data Service Unit (DSU) functions and supports dedicated point-to-point and switched digital data services over serial networks. Technical Specifications Condition New/Never Used Surplus Brand Cisco Category Network Interface Modules Part Number HWIC-1DSU-56K4 Subcategory Serial WAN Interface Cards Interface Type 4-Wire CSU/DSU Port Count 1 Port Connector Type RJ-48S Data Rate 56 or 64 kbps Network Technology Synchronous Serial Supported Protocols AT&T Accunet 56, Sprint VPN-56, DDS Compatible Platforms Cisco 1900 and 2900 Series ISRs Applications Dedicated or switched WAN access via DDS or 4-wire networks Form Factor High-Speed WAN Interface Card (HWIC) Weight 204 g Information About HWIC-1DSU-56K4 The HWIC-1DSU-56K4 interface card is designed for Cisco Integrated Services Routers (ISRs), such as the 1900 and 2900 series. This module provides a single RJ-48S synchronous serial port and integrates CSU/DSU functionality into a single WAN interface card. It supports 4-wire 56K and 64Kbps digital lines compatible with a range of carrier services, including AT&T’s Accunet 56, Sprint’s VPN-56, and other DDS offerings conforming to AT&T Publication 62310. The card is ideal for enterprises or branch offices that require reliable, low-speed WAN connectivity to support legacy systems, private networks, or secure dial-in access. With seamless integration into Cisco’s IOS-based platforms, this HWIC offers stable and consistent WAN performance. Key Features: Integrated CSU/DSU: Combines both CSU and DSU functions for simplified WAN connectivity. Supports 56K and 64K Services: Compatible with switched and dedicated 4-wire digital networks. Standards-Based: Works with services following AT&T Publication 62310 for point-to-point or multipoint topologies. Single RJ-48S Port: Uses a standard RJ-48S connector for straightforward cabling with telco circuits. Synchronous Serial Support: Provides a synchronous interface for reliable timing and stable connections. Compatibility with Cisco ISRs: Designed to work seamlessly with Cisco 1900 and 2900 Series routers. Low-Speed WAN Option: Ideal for locations with basic WAN needs or legacy infrastructure. Flexible Application Use: Supports both dedicated DDS and switched data service configurations. Carrier-Grade Interoperability: Compatible with AT&T Accunet 56, Sprint VPN-56, and other telecom data services. Compact HWIC Form Factor: Easy to install in high-density router configurations without additional rack space. The HWIC-1DSU-56K4 offers a compact and reliable solution for organizations seeking cost-effective serial WAN connectivity through legacy DDS and 4-wire digital networks.
Brand: Cisco · Category: Industrial Automation & Electrical
Key features
- Integrated CSU/DSU: Combines both CSU and DSU functions for simplified WAN connectivity.
- Supports 56K and 64K Services: Compatible with switched and dedicated 4-wire digital networks.
- Standards-Based: Works with services following AT&T Publication 62310 for point-to-point or multipoint topologies.
- Single RJ-48S Port: Uses a standard RJ-48S connector for straightforward cabling with telco circuits.
- Synchronous Serial Support: Provides a synchronous interface for reliable timing and stable connections.
- Compatibility with Cisco ISRs: Designed to work seamlessly with Cisco 1900 and 2900 Series routers.
- Low-Speed WAN Option: Ideal for locations with basic WAN needs or legacy infrastructure.
- Flexible Application Use: Supports both dedicated DDS and switched data service configurations.
- Carrier-Grade Interoperability: Compatible with AT&T Accunet 56, Sprint VPN-56, and other telecom data services.
- Compact HWIC Form Factor: Easy to install in high-density router configurations without additional rack space.
Specifications
| Manufacturer part number | HWIC-1DSU-56K4 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Cisco |
| Category | Network Interface Modules |
| Part Number | HWIC-1DSU-56K4 |
| Subcategory | Serial WAN Interface Cards |
| Interface Type | 4-Wire CSU/DSU |
| Port Count | 1 Port |
| Connector Type | RJ-48S |
| Data Rate | 56 or 64 kbps |
| Network Technology | Synchronous Serial |
| Supported Protocols | AT&T Accunet 56, Sprint VPN-56, DDS |
| Compatible Platforms | Cisco 1900 and 2900 Series ISRs |
| Applications | Dedicated or switched WAN access via DDS or 4-wire networks |
| Form Factor | High-Speed WAN Interface Card (HWIC) |
| Weight | 204 g |
| Product type | Serial WAN Interface Cards |
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