Configuring A T3 Interface As Channelized - Cisco 10000 Series Configuration Manual

Channelized T3 Commands
Figure 8-1
A fully channelized T3
can be broken into 28 T1s...

Configuring a T3 Interface as Channelized

A T3 interface is channelized by default. Use the channelized command if you had previously made the
interface unchannelized and want to change the setting.
[no] channelized
channelized
The no channelized command removes all channel groups from a channelized T3 interface. If you have
Caution
already configured channel groups, use this command with caution.
The following example shows the creation of a channelized T3 interface:
Router(config)# controller T3 1/0/0
Router(config-controller)# channelized
Specifying the Cable Length
To specify the cable length for the T3 controller, use the cablelength command.
cablelength feet
[no] cablelength feet
Where feet is a number from 0 to 450.
The default value is 249 feet.
Use the no form of this command to restore the default cable length.
In the following example, the cablelength value is set to 40 feet.
Router(config)# controller T3 1/0/0
Router(config-controller)# cablelength 40
Cisco 10000 Series Router Line Card Configuaration Guide
8-10
Channelization of T3s
(or 64-KB) timeslots (numbered 0 to 23).
T1
T1 T1
T1
T1
T1
T1
T1
T1
T1
T1
T1
T1 T1
T1
T1
T1 T1
T1
T1 T1 T1
T1
T1 T1
T1 T1
T1
A T1 is broken into channel groups
to provide subscribers with rates
ranging from full T1 (all 24 timeslots)
to a single DS0 (one timeslot).
The gray circles represent a channel
group containing timeslots 1 to 5.
Chapter 8
...each of which contains 24 56-KB
6-Port Channelized T3 Line Card Configuration
Single timeslot
Channel
group
OL-8834-04