Cisco PA-MC-T3-EC= Installation And Configuration Manual page 74

Configuring a Channelized T3 Link
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For consistency throughout the following configuration examples and whenever possible, the port
Note
addresses 1/0 and 1/0/1:1 are used for Cisco 7200 VXR routers.
Your PA-MC-T3-EC port addressing might be different depending on the Cisco 7200 VXR router chassis
slot in which your PA-MC-T3-EC is installed.
Creating a Logical Channel Group on a T1 Line
You can create a logical channel group on a T1 line using the t1 t1-line-number channel-group
channel-group-number timeslots list-of-timeslots
[speed {56 | 64}] controller command where:
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The following example configures logical channel group 20 on T1 line 1 and assigns channelized time
slots 1 to 5 and 20 to 23.
The example that follows is for a port adapter in slot 1 of a Cisco 7200 VXR router:
Each T1 link may have up to 24 channel groups with an overall limit of 128 for the 28 T1 links on each
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T3 port. Unused channel groups in one T3 port may not be used by the other T3 port.
Each channel group defined with this command causes a serial interface to be created. Refer to the
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"Performing a Basic Serial Interface Configuration" section on page 5-24
these interfaces.
Note All the encapsulation formats, such as PPP, HDLC, SMDS, Frame Relay, and switching types are
applicable to the serial interface and can be set using the serial interface configuration commands.
PA-MC-T3-EC Port Adapter Installation and Configuration
5-14
Setting Loopbacks on a T1 Line, page 5-16
Configuring a BER Test on a T1 Line, page 5-19
Sending a BER Test Pattern on a T1 Line, page 5-19
Viewing the Results of a BER Test, page 5-20
Terminating a BER Test, page 5-23
t1-line-number is 1 to 28.
channel-group defines a logical channel group.
channel-group-number is 0 to 23.
timeslots list-of-timeslots can be 1 to 24 or a combination of subranges within 1 to 24 (each
subrange is a list of time slots of the T1 line).
speed{56 | 64} is an optional argument that specifies the speed of a time slot to be either 56 kbps or
64 kbps.
Router(config)# controller T3 1/0
Router(config-controller)# t1 1 channel-group 20 timeslots 1-5, 20-23
Chapter 5 Configuring the Channelized Mode
for instructions on configuring
OL-10589-02