CISCO
HWIC-1DSU-56K4 Cisco CSU/DSU WAN Interface Card
Mfg Part Number: HWIC-1DSU-56K4 , Item #: 2009019
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Price: $793.62
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Last Updated: Dec 24, 2025
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, PO and Wire.
The Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WAN Interface Card (HWIC-1DSU-56K4) performs the channel service unit/data service unit (CSU/DSU) functions for both digital data service (DDS) (dedicated) and 4-wire switched 56-kbps (56K) data networks. In addition, it provides an all-rate synchronous interface to any dedicated DDS point-to-point or multipoint network compatible with AT&T Publication 62310. The new card also supports 4-wire switched 56K data services such as AT&T's Accunet 56 or Sprint's VPN-56 plus many switched data services offered by local exchange carriers.
Main Specification
| General Information | |
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | HWIC-1DSU-56K4 |
| Manufacturer Website Address | http://www.cisco.com |
| Brand Name | Cisco |
| Product Model | HWIC-1DSU-56K4 |
| Product Name | CSU/DSU WAN Interface Card |
| Product Type | WAN Module |
| Technical Information | |
| Application/Usage | Wide Area Network |
| Interfaces/Ports | |
| Total Number of Ports | 1 |
| Connector Type | RJ-48S |
| Interfaces/Ports Details | 1 x RJ-48S Serial Synchronous WAN |
| Media & Performance | |
| Network Technology | Serial |
| Maximum Data Transfer Rate | 64 kbit/s |
| Miscellaneous | |
| Compatibility |
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| Warranty | |
| Limited Warranty | 90 Day |
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
