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CLI-based Configuration Guide - Interface Management

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the basic concepts, configuration procedures, and configuration examples of the interfaces supported by the device.
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Configuring a T1 Channel for a CPOS Interface

Configuring a T1 Channel for a CPOS Interface

Context

The T1 channel of a CPOS interface can work in unchannelized or channelized mode.

  • In unchannelized mode, a T1 interface works at a rate of 1.544 Mbit/s without timeslot division. The logical features of a T1 channel are the same as those of a synchronous serial interface.

  • When a T1 channel works in channelized mode, timeslots numbered 1 to 24 can be randomly bundled into a channel set that functions as an interface. The rate of the interface is N x 56 kbit/s or N x 64 kbit/s. The interface has the same logical features as a synchronous serial interface.

NOTE:

By default, an E1 channel works in channelized mode.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Configure the 1CPOS-155M/1CPOS-155M-W interface card to work in T1 mode.

    1. Run display device

      Information about the 1CPOS-155M/1CPOS-155M-W interface card is displayed. You can check the slot ID of the interface card, whether the interface card is installed in the slot, and whether it is working properly.

    2. Run display workmode { slot slot-id | all }

      The working mode of the 1CPOS-155M/1CPOS-155M-W interface card is displayed.

    3. Run set workmode slot slot-id cpos t1-data

      The 1CPOS-155M/1CPOS-155M-W interface card is configured to work in T1 mode.

      By default, a 1CPOS-155M/1CPOS-155M-W interface card works in E1 mode (e1-data).

      After completing this step, reset the 1CPOS-155M/1CPOS-155M-W interface card and wait for a while for the configuration to take effect.

  3. Run controller cpos cpos-number

    The specified CPOS interface view is displayed.

  4. Configure the working mode for a T1 channel.

    • Run t1 t1-number unframed

      A T1 channel is configured to work in unchannelized mode.

      After the configuration is complete, the device generates a logical channel working at a rate of 1.544 Mbit/s without timeslot division. You can run the interface serial cpos-number/t1-number: 0 command to the logical channel.

    • Run t1 t1-number channel-set set-number timeslot-list slot-list [ speed { 56k | 64k } ]

      A T1 channel is configured to work in channelized mode and timeslots of T1 channel are bundled.

      After the configuration is complete, the device generates a logical channel that is composed of timeslots slot-list and works at a rate of N × 56 kbit/s or N × 64 kbit/s (N is the number of timeslots bundled into a channel). By default, the rate of the channel-set that is formed by binding T1 timeslots is N x 56 kbit/s.

      You can run the interface serial cpos-number/t1-number: set-number command to the logical channel.

  5. Run t1 t1-number set frame-format { esf | sf }

    The frame format of the T1 channel is configured.

    By default, the frame format of a T1 channel is ESF.

    NOTE:

    The frame format of the T1 channel must be the same on both ends.

  6. Run t1 e1-number set flag { j2 { 1byte-mode 1byte-string | 16byte-mode 16byte-string } | v5 v5-string }

    The overhead byte is configured for the T1 channel.

    By default, J2 repeatedly transmits a string of null characters, and the V5 byte value is 2.

  7. Run t1 t1-number set clock { master | slave }

    The clock mode is configured for the T1 channel.

    By default, the clock mode of a T1 channel is slave.

    NOTE:

    The clock mode of the T1 channel must be different on both ends.

  8. (Optional) Run either of the following commands to disable or enable the T1 channel.

    • Run t1 t1-number shutdown

      The specified T1 channel is disabled.

    • Run undo t1 t1-number shutdown

      The specified T1 channel is enabled.

    By default, a T1 channel is enabled.

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Updated: 2019-03-06

Document ID: EDOC1100069331

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