| 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| Superseded and Withdrawn components |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Superseded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Superseded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Superseded
|
