Huawei AR1200 series Configuration Manual page 89

Huawei AR1200 Series Enterprise Routers
Configuration Guide - Interface Management
E1-F interfaces on both ends must be configured with the same parameters except for the clock
mode. Otherwise, devices on both ends cannot communicate properly.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface serial interface-number
The E1-F interface view is displayed.
Step 3 Run:
fe1 unframed
The E1-F interface works in unframed mode.
By default, an E1-F interface works in framed mode.
Step 4 (Optional) Run:
fe1 line-termination { 75-ohm | 120-ohm }
The cable type applicable to the E1-F interface is specified.
By default, the cable type applicable to an E1-F interface is 120 ohm balanced cable (twisted
pair).
This step is required when the type of the cable connected to an E1-F interface changes.
Step 5 (Optional) Set optional parameters for the E1-F interface.
1.
2.
3.
Issue 01 (2012-04-20)
CAUTION
Run:
description text
The interface description is configured.
Run:
fe1 clock { master | slave }
The clock mode is set.
By default, an E1-F interface works in slave clock mode and uses the line clock.
When an E1-F interface functions as a data circuit-terminating equipment (DCE) interface,
it must work in master clock mode and provide clock signals for a data terminal equipment
(DTE) interface. When an E1-F interface functions as a DTE interface, it must work in
slave clock mode and obtain clock signals from a DCE interface.
Run:
fe1 data-coding { inverted | normal }
Data inversion is enabled or disabled.
By default, an E1-F interface does not invert user data.
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8 E1-F Interface Configuration
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