UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ITU-T K.21

Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents

active, Most Current
Buy Now
Organization: ITU-T
Publication Date: 1 July 2019
Status: active
Page Count: 40
scope:

This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment that is attached to or installed within a customer's premises. The requirements of this Recommendation assume that earthing and bonding is in accordance with [ITU-T K.66].

The types of equipment covered by this Recommendation include all types of telecommunication equipment, e.g., modems, telephones, routers, implementations of digital subscriber lines and personal computers.

NOTE - Associated equipment containing ports with a low surge impedance to earth connected by short cables, e.g., printers using universal serial bus (USB) cables, may be susceptible to damage due to circulating earth currents. Refer to [ITU-T K.66] and [b-ITU-T K.85] for methods of protection.

This Recommendation applies to both external and internal ports. [ITU-T K.44], covering basic test methods and test circuits, is an integral part of this Recommendation. This Recommendation should be read in conjunction with [ITU-T K.11] and [ITU-T K.39].

Document History

June 1, 2020
(Pre-Published) Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents Amendment 1
A description is not available for this item.
June 1, 2020
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents Amendment 1
A description is not available for this item.
ITU-T K.21
July 1, 2019
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment that is attached to or installed within a customer's premises. The requirements of this...
October 1, 2018
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment that is attached to or installed within a customers' premises. The requirements of this...
July 1, 2017
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment that is attached to or installed within a customers' premises. The requirements of this...
December 1, 2016
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment which is attached to or installed within a customers' premises. The requirements of this...
June 1, 2016
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment which is attached to or installed within a customers' premises. The requirements of this...
April 1, 2015
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment which is attached to or installed within a customers' premises. The requirements of this...
May 12, 2014
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
A description is not available for this item.
November 1, 2011
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment which is attached to or installed within a customer's premises. The requirements of this...
April 1, 2008
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents
This Recommendation specifies resistibility requirements and test procedures for telecommunication equipment which is attached to or installed within a customer premises building. The requirements of...
July 1, 2003
Resistibility of telecommunication equipment installed in customer premises to overvoltages and overcurrents SERIES K: PROTECTION AGAINST INTERFERENCE
A description is not available for this item.
October 1, 2000
Resistibility of Telecommunication Equipment Installed in Customer Premises to Overvoltages and Overcurrents Series K: Protection Against Interference
A description is not available for this item.
October 1, 1996
Resistibility of Subscriber's Terminal to Overvoltages and Overcurrents - Series K: Protection Against Interference
A description is not available for this item.
January 1, 1989
Resistibility of Subscribers' Terminals to Overvoltages and Overcurrents - Protection Against Interference (Study Group V) 6 pp
A description is not available for this item.

References

Advertisement