| In force components |
Number
|
Title |
Status |
K.21 (08/22)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
In force
|
Guide (04/2012)
|
Guide on the use of the overvoltage resistibility Recommendations
This guide assists test laboratories in implementing the correct tests for ITU-T K.20, K.21, and K.45 compliance testing. It is based on K.44 (2012-05).
|
In force
|
|
| Superseded and Withdrawn components |
Number
|
Title |
Status |
K.21 (11/88)
|
Resistibility of subscribers' terminals to overvoltages and overcurrents
|
Superseded
|
K.21 (10/96)
|
Resistibility of subscriber's terminal to overvoltages and overcurrents
|
Superseded
|
K.21 (10/00)
|
Resistibility of telecommunication equipment installed in costumer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (07/03)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (2003) Erratum 1 (01/04)
|
Correction to table 7/K.21
|
Superseded
|
K.21 (04/08)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (2008) Erratum 1 (05/08)
|
Relates to English prepublished version only
|
Superseded
|
K.21 (11/11)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (2011) Erratum 1 (05/14)
|
|
Superseded
|
K.21 (04/15)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (06/16)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (12/16)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (07/17)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (10/18)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (07/19)
|
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
|
Superseded
|
K.21 (2019) Amendment 1 (06/20)
|
The file initially posted on 3.9.2020 was replaced to correct a minor formatting issue in Table 1a.
|
Superseded
|
