Huawei AR1200 series Configuration Manual page 78

Huawei AR1200 Series Enterprise Routers
Configuration Guide - Interface Management
Step 4 (Optional) Set optional parameters for the CT1/PRI interface.
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Issue 01 (2012-04-20)
NOTE
The channel-set and pri-set commands cannot be used on the same CT1/PRI interface. That is, you can
configure only one timeslot bundling mode on a CT1/PRI interface.
Run:
description text
The interface description is configured.
Run:
cable { long { -7.5db | -15db | -22.5db } | short { 133ft | 266ft | 399ft |
533ft | 655ft } }
The attenuation or length of the transmission line matching the CT1/PRI interface is
configured.
The default attenuation of the transmission line on a CT1/PRI interface is -7.5 db.
When signals that the AR1200 receives are of a good quality, use the default configuration.
Run:
clock { master | slave }
The clock mode is set.
By default, a CT1/PRI interface works in slave clock mode and uses line clock signals.
When a CT1/PRI interface functions as a Data Circuit-terminating Equipment (DCE), it
must work in master clock mode and provide clock signals for a Data Terminal Equipment
(DTE). When a CT1/PRI interface functions as a DTE, it must work in slave clock mode
and obtain clock signals from a DCE.
Run:
data-coding { inverted | normal }
Data inversion is configured.
By default, a CT1/PRI interface does not invert user data.
Run:
alarm-threshold { ais { level-1 | level-2 } | lfa { level-1 | level-2 |
level-3 | level-4 } | los { pulse-detection value | pulse-recovery value } }
Alarm thresholds are configured for the CT1/PRI interface.
The default alarm thresholds are as follows:
l Loss of signal (LOS) alarm: 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.
l AIS alarm: level-1.
l Loss of frame alignment (LFA) alarm: level-1.
Run:
frame-format { esf | sf }
The frame format is set.
By default, a CT1/PRI interface uses ESF as the frame format.
Run:
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7 CT1/PRI Interface Configuration
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