Cisco Cisco IOS Software Release 12.4(6)T

Copyright © 2006 Cisco Systems, Inc. All rights reserved.

The ADSL high speed WAN interface cards (HWICs) feature for Cisco modular integrated services 
routers provide high-speed ADSL digital data transfer between a single customer premises equipment 
(CPE) subscriber and a central office (CO). ADSL HWICs are available in the following variations:

ADSL over POTS (ADSLoPOTS) HWICs

HWIC-1ADSL, a 1-port ADSLoPOTS card

HWIC-ADSL-B/ST, a 2-port card with a port for ADSLoPOTS and a data-only port for an ISDN 
BRI S/T connection

ADSL over ISDN (ADSLoISDN) HWICs

HWIC-1ADSLI, a 1-port ADSLoISDN card

HWIC-ADSLI-B/ST, a 2-port card with a port for ADSLoISDN and a data-only port for an 
ISDN BRI S/T connection

Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image 
support. Access Cisco Feature Navigator at 

. You must have an account on 

Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at 
the login dialog box and follow the instructions that appear. 

12.4(4)T

This feature was introduced.

12.4(6)T

Support was added for 2-port HWIC-ADSL-B/ST and HWIC-ADSLI-B/ST 
cards.