Cisco 2-Port Serial WAN Interface Card HWIC-2T= Fiche De Données
Codes de produits
HWIC-2T=
Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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while also providing detailed troubleshooting capabilities. Troubleshooting features include self-
test, loopbacks, CSU/DSU reset, alarm counters, and T1 statistics.
Figure 2. WAN Concentration
Legacy Protocol Transport
Serial and synchronous/asynchronous ports are ideally suited to transport legacy traffic across a
TCP/IP network, facilitating network convergence (Figure 3) and eliminating costly separate leased
lines for this traffic. Legacy protocols supported by Cisco IOS
®
Software include:
●
Systems Network Architecture (SNA) and Synchronous Data Link Control (SDLC) Protocol
●
Binary Synchronous Communications Protocol (Bisync)
●
X.25 Protocol
Figure 3. Network Convergence
Dial Access Server
Asynchronous HWICs can connect to external dial modems to provide low-density dial access
servers (Figure 4).
Figure 4. Dial Access Server