Cisco WIC-1AM-V2 and WIC-2AM-V2 Analog Modem WAN Interface Card
Information About Cisco WIC-1AM-V2 and WIC-2AM-V2 Analog Modem WIC
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Cisco IOS Release 12.3(14)T
Information About Cisco WIC-1AM-V2 and WIC-2AM-V2 Analog Modem WIC
The Cisco WIC-1AM-V2 and WIC-2AM-V2 Analog Modem WAN Interface Card adds the following
features to WAN interface card modems:
•Support for V.90/V.92/V.44.
•A Cisco IOS command is provided to update the modem firmware. This command allows for
upgrading in the field.
•The country code is set by a modemcap.
•The modem uses the Conexant AT Command Set.
•More country codes are supported than on previous modems.
Three applications are available for the V.90 modem WIC on the Cisco2600XM, Cisco 2691,
Cisco 3700, and Cisco 3800 series multiservice platforms:
•Remote Router Management and Out-of-Band Access
•Asynchronous Dial-on-Demand Routing and Dial-Backup
•Low-Density Analog RAS Access
Remote Router Management and Out-of-Band Access
In this mode, the modem WIC is used as a dial-in modem for remote terminal access to the router’s
command-line interface (CLI) for configuration, troubleshooting, and monitoring. The modem WIC acts
similar to a modem that is connected to the AUX port of a router, but the integrated nature of the modem
WIC greatly decreases configuration time and deployment and sustaining costs. Typically, the 1-port
modem WIC is used for this application. Connection speeds up to 33.6 kbps are possible.
Asynchronous Dial-on-Demand Routing and Dial-Backup
In this mode, the V.90 modem WIC transports network traffic. When ISDN service is not available and
the traffic load does not justify a leased-line or Frame Relay connection, asynchronous dial-on-demand
routing (DDR) is often the only choice for making a WAN connection. Even at sites that do have
leased-line or Frame Relay connection, asynchronous DDR can increase bandwidth during sustained
traffic load. In addition, when the primary leased-line or Frame Relay link is down during an outage,
asynchronous dial-backup provides a secondary way to make the WAN connection. Both the 1-port and
2-port versions of the V.90 modem WIC can be used for this application.
For more information on Asynchronous Dial-on-Demand Routing and Dial-Backup, see the section
Configuring Dial Backup for Serial Lines in theCis co IOS Dial Technologies Configuration Guide.
Two ports on one modem WIC (or even three or more ports spanning multiple modem WIC cards) can
be combined using Multilink PPP (MLP) to increase connection speeds in a scalar manner. Each
connection is capable of V.90 speeds (up to 56 kbps) when connecting to a digital V.90 server modem.
For more information on MLP, see Multilink PPP for DDR—Basic Configuration and Verification.