
25
Note The slot number for all WIC interfaces is always 0. (The W0 and W1 slot designations are for physical slot identification
only.) Interfaces in the WICs are numbered from right to left, starting with 0/0 for each interface type, regardless of
which physical slot the WICs are installed in.
Some examples are as follows:
• If slot W0 is empty and slot W1 contains a 1-port serial WIC, the serial interface in the WIC is numbered Serial 0/0.
• If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port serial WIC, the serial interfaces in physical slot W0
are numbered Serial 0/0 and Serial 0/1, and the serial interface in physical slot W1 is numbered Serial 0/2.
• If slot W0 contains a 2-port serial WIC and slot W1 contains a 1-port BRI WIC, the serial interfaces in physical slot W0
are numbered Serial 0/0 and Serial 0/1, and the BRI interface in physical slot W1 is numbered BRI 0/0.
Voice Interface Numbering
Voice interfaces are numbered as follows:
chassis-slot/voice-module-slot/voice-interface
If a 4-channel voice network module is installed in chassis slot 1, the voice interfaces are:
• 1/0/0—Chassis slot 1/Voice module slot 0/Voice interface 0
• 1/0/1—Chassis slot 1/Voice module slot 0/Voice interface 1
• 1/1/0—Chassis slot 1/Voice module slot 1/Voice interface 0
• 1/1/1—Chassis slot 1/Voice module slot 1/Voice interface 1
8 Where to Go Next
For additional detailed configuration procedures, see the appropriate Cisco 3700 series documentation or Cisco IOS software
documentation, available online on Cisco.com.
Tip See the “Obtaining Documentation” section on page 26 for help in locating these documents.
To access documentation on Cisco.com:
For Cisco 3700 series platform documentation, start on Cisco.com at http://www.cisco.com, and choose Products & Services
> Routers > Cisco 3700 Series Multiservice Platforms > Technical Documentation > Document type > Document.
For Cisco IOS software documentation, start on Cisco.com at http://www.cisco.com, and choose Products & Services >
IOS Software > Cisco IOS Software Releases > Your Cisco IOS software release.
To get updated information about platform support for features, choose Feature Navigator II if you have an account on
Cisco.com. You can also access Feature Navigator II at http://www.cisco.com/go/fn.
To access documentation using Cisco Connection Online (CCO):
For Cisco 3725 platform documentation, start on Cisco.com at http://www.cisco.com, and click on the “Click the Technical
Documentation Link under Quick Links.” Under the Product Documentation heading, navigate to Modular Access Routers and
to the documentation for your router.
For Cisco IOS software documentation, start on Cisco.com at http://www.cisco.com, and click on the “Click the Technical
Documentation Link under Quick Links.” Under the Product Documentation heading, navigate to the Cisco IOS software
documentation for the Cisco IOS software release that is installed on your router.
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