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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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Default Settings for CT1/PRI Interfaces

Default Settings for CT1/PRI Interfaces

This section provides the default settings for a CT1/PRI interface.

Table 6-1  Default settings for a CT1/PRI interface


Default Setting

Working mode of the 1E1T1-M/2E1T1-M interface card

e1-data (CE1/PRI mode)

Cable type applicable to the CT1/PRI interface

120 ohm balanced cable (twisted pair)

Attenuation or length of the transmission line matching the CT1/PRI interface

long -7.5db

Clock mode

Slave clock mode

Line idle code type


Interframe filling tag type and minimum number of interframe filling tags

Interframe filling tag type: 0x7e; minimum number of interframe filling tags: 4

Frame format


Whether to invert data


Whether to perform RAI detection


Alarm thresholds

  • Alarm Indication Signal (AIS) alarm threshold: level 1
  • Loss of Frame Alignment (LFA) alarm threshold: level 1
  • Loss of Signal (LOS) alarm threshold: The value of pulse-detection is 176 and the value of pulse-recovery is 22, indicating that a LOS alarm is generated if less than 22 pulses are detected within 176 pulse intervals.
Updated: 2019-03-06

Document ID: EDOC1100069331

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