Understanding the 1−Port ISDN BRI S/T Leased
Line WIC (WIC−1B−S/T−LL)
Document ID: 7256
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
Product Number
Features
Platform Support
Configuration
Related Information
Introduction
The 1−port ISDN BRI S/T leased line WAN interface card (WIC) (WIC−1B−S/T−LL) is designed
specifically for the Cisco 1603 R and 1604 R routers. It is intended for users who require a dialup ISDN BRI
line (from the Cisco 1603 R or 1604 R router's built−in ISDN port) and an ISDN leased line (from this ISDN
BRI leased line WIC inserted into the Cisco 1603 R or 1604 R router).
The graphic below shows the WIC−1B−S/T−LL.
Prerequisites
Requirements
There are no specific prerequisites for this document.
Components Used
Please refer to the Platform Support section for detailed information.
The information presented in this document was created from devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If you are working in a live
network, ensure that you understand the potential impact of any command before using it.
Conventions
For more information on document conventions, see the Cisco Technical Tips Conventions.
Product Number
WIC−1B−S/T−LL − One Port ISDN BRI S/T Leased Line WAN Interface Card
Features
The following lists the features related to the WIC−1B−S/T−LL.
• 64−kbps of ISDN leased line support on the WIC−1B−S/T−LL card is only available on the B1
channel.
• Supported on the Cisco 1603 R and 1604 R routers.
• Does not support ISDN dialup.
• Single B−channel WIC (B1 channel always assigned).
• The no isdn leased line bri <interface−number>command will default the box to the 64 k leased
line mode.
• Does not support hot swap, however no hardware damage will occur if it is swapped while the power
is on.
Platform Support
The following table details the platform support for the WIC−1B−S/T−LL.
Platform
Cisco
1600 (*)
Cisco
1700
Cisco
Cisco
2600,2600XM 3620,3640
Cisco
Cisco
IOS®
IOS
Software
Versions
Not
Support
Not supported
11.2(9)P,
supported
11.3(3)T,
and all
12.x
Not
supported
Cisco
3631
Cisco
3660
Cisco
2691,3725,3745
Not
Not
Not supported
supported supported
Note: This WIC is only supported in the Cisco 1603, 1603−R, 1604, or 1604−R. The WIC−1B−S/T−LL card
supports the 128k leased line starting in Cisco IOS Version 11.3(3)T.
Note: The Cisco IOS software releases provided are typically the minimum version required to support the
platform, module, or feature in question. Use the Software Advisor (registered customers only) to choose
appropriate software for your network device: match software features to Cisco IOS and CatOS releases,
compare IOS releases, or find out which software releases support your hardware.
Configuration
Note: The WIC−1B−S/T−LL card is automatically configured in ISDN leased line mode and never operates
in dialer mode.
For information on configuring an ISDN leased line, refer to the following documents:
• Configuring ISDN Special Signaling
• Troubleshooting Leased Line
Related Information
• Comparison of Cisco 1601, Cisco 1604, and Cisco 1605 R Memory Architectures
• Connecting WAN and Voice Interface Cards to a Network
• Dial and Access Technology Support Page
• Technical Support − Cisco Systems
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Updated: Jan 29, 2008
Document ID: 7256