Specifications

4-7
Cisco MGX 8260 Command Line Interface Guide
Release 1.2, Part Number 78-10987-01 Rev. B0, January, 2002
Chapter 4 Service Management
Configuration Tasks for Lines
Adding DS1/E1 Lines
This procedure explains how to add DS1/E1 lines to BSC or NSC cards. NSCs support either T1 or E1
lines, but the whole chassis must be configured for one mode or the other. DS1 channels within a DS3
line have the following mapping:
Note Before adding DS1 lines to a DS3 line, ensure the corresponding DS3 line exists.
To add DS1/E1 lines, follow these steps:
Step 1 Enter the addds1ln command and optional parameters (see “addds1ln” section on page 9-10.
The following example adds two DS1 lines with AMI line coding at slot 11 lines 6 and 7:
addds1ln 11.6 2 # 5
This example assumes the chassis is configured for T1 lines and that DS3 line number 501 already
exists in slot 11.
Note The system stops adding lines on the first failure, even if later additions are valid.
Step 2 Add other DS1/E1 lines, as required.
Step 3 Verify the configuration for the new lines using the lsds1ln command, specifying the logical number of
the slot in the MGX 8260 chassis and the number of the DS1/E1 line, delimited by a period (slot.line).
The display identifies the associated DS3 line, if appropriate.
Changing DS1/E1 Lines
Warning Changing a DS1/E1 line interrupts service. Perform this operation during light traffic
periods or in a pre-arranged maintenance window.
To change the configuration of a DS1/E1 line, enter the chds1ln command and optional parameters.
Unspecified parameters, designated by a # symbol, retain their current settings.
For example, the following command activates a local diagnosis loopback on line 6 of logical slot 11:
chds1ln 11.6 # # # # 4
DS 3 Line Number DS1 Line Number
501 1-28
502 29-56
503 57-84
504 85-112
505 113-140
506 141-168