Specifications

49
Channelized and Electrical Interface Line Card Installation and Configuration
78-16417-02
Configuring and Troubleshooting Line Card Interfaces
Configuring the 6-Port Channelized T3 (T1) Line Card
The following procedure describes how to perform a basic controller configuration. After you verify that
the new line card is installed correctly, enter the privileged EXEC mode with the enable command. The
system prompts you for a password if one is required. Use the configure command to configure the
controller.
A Cisco 12000 Series Router identifies an interface address by its line card slot number and port number,
in the format slot/port. For example, the slot/port address of an interface on an 6-port channelized T3
(T1) line card installed in line card slot 2 and port 0 is 2/0. Even if the card contains only one port, you
must use the slot/port notation.
The following sections provide configuration procedures for the T3 Controller and Interface:
• Identifying 6CT3 T1 and T3 Interface Port Numbers and Addresses, page 49
• Configuring the 6-Port Channelized T3 (T1) Line Card Controller, page 49
Identifying 6CT3 T1 and T3 Interface Port Numbers and Addresses
The Cisco 12000 Series Router identifies interface addresses by their line card slot numbers and port
numbers, in the format slot/port. For example, the slot/port address of an interface on a
6CT3-SMB line card installed in line card slot 1 is 1/0. Even though the card contains only one port, you
must use the slot/port notation.
For consistency throughout the following configuration examples for the 6CT3-SMB line card, the T3
controller address is t3 slot/port.
The interface numbering scheme for the 6CT3-SMB line card NxDS0 interfaces is in the form of
slot/port/t1:channel-group number
where
– slot refers to the chassis slot where the 6CT3-SMB line card is installed.
– port refers to the physical port on the 6CT3-SMB line card and is always between 0 and 5.
– NxDS0 indicate the interface type.
– T1 lines are numbered 1 to 28.
– NxDS0 channel-groups are numbered 0 to 23. In this document, channel-groups are referred to
as channels. There can be up to 24 NxDS0 channels per T1and up to 35 NxDS0 channels per T3.
Note T1 lines on the 6CT3-SMB line card are numbered 1 to 28, rather than the more traditional
zero-based scheme (0 to 27) used with other Cisco line card products. This is to ensure
consistency with Telco numbering schemes for T1 lines within channelized T3 equipment.
Configuring the 6-Port Channelized T3 (T1) Line Card Controller
Procedures and examples for configuring the T3 controller on the 6-port channelized T3 (T1) line card
are presented in the following sections:
• Selecting a T3 Controller, page 50
• Setting the Framing Type for the T3 Controller, page 50
• Specifying the Cable Length, page 50
• Setting the Clock Source for the T3 Controller, page 51