Cisco HWIC-2T データシート
Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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One- and 2-Port Serial and Asynchronous High-Speed
WAN Interface Cards for Cisco 1800, 1900, 2800, 2900,
3800, and 3900 Series Integrated Services Routers
WAN Interface Cards for Cisco 1800, 1900, 2800, 2900,
3800, and 3900 Series Integrated Services Routers
Serial and asynchronous high-speed WAN interface cards (HWICs) provide highly flexible
connections for Cisco
®
1800, 1900, 2800, 2900, 3800, and 3900 Series Integrated Services
Routers. These HWICs help customers enable applications such as WAN access, legacy protocol
transport, console server, and dial access server. You can mix and match HWICs to tailor cost-
effective solutions for common networking problems such as remote network management,
external dial-modem access, low-density WAN aggregation, legacy protocol transport, and high-
port-density support.
Cisco offers four new serial and asynchronous HWICs:
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Cisco 1-Port T1/Fractional T1 DSU/CSU WAN Interface Card (HWIC-1DSU-T1)
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Cisco 1-Port Serial WAN Interface Card (HWIC-1T)
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Cisco 2-Port Serial WAN Interface Card (HWIC-2T)
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Cisco 2-Port Asynchronous/Synchronous Serial WAN Interface Card (HWIC-2A/S)
Figure 1. Cisco 1- and 2-Port Serial and Asynchronous HWICs
Common Applications
These highly flexible interface cards facilitate several important applications:
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WAN access and aggregation
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Legacy protocol transport
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Dial access server
WAN Access and Aggregation
Serial interfaces can be used to provide WAN access for remote sites. With support for serial
speeds up to 8 Mbps per port, the 2-port serial HWIC is ideal for low- and medium-density WAN
aggregation (Figure 2).
The HWIC-1DSU-T1 also offers an integrated CSU/DSU, simplifying configuration and
management. Integration allows management of the router and CSU/DSU as a single SNMP entity