| In force components |
Number
|
Title |
Status |
M.2120 (07/02)
� |
International multi-operator paths, sections and transmission systems fault detection and localization procedures
�
|
In force
|
�
� |
| Superseded and Withdrawn components |
Number
|
Title |
Status |
M.2120 (10/92)
� |
Digital path, section and transmission system fault detection and localization procedures
�
|
Superseded
|
M.2120 (04/97)
� |
PDH path, section and transmission system and SDH path and multiplex section fault detection and localization procedures
�
|
Superseded
|
M.2120 (02/00)
� |
PDH path, section and transmission system and SDH path and multiplex section fault detection and localization procedures
�
|
Superseded
|
