DS/EN 50065-4-4:2003
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 4-4: Low voltage decoupling filter - Impedance filter

Standard No.

DS/EN 50065-4-4:2003

Release Date

2003

Published By

Danish Standards Foundation

Status

Be replaced 2013-05

Replace By

DS/ISO/IEC 7816-4:2013

Latest

DS/ISO/IEC 7816-4:2013

Scope

This standard applies to impedance filters in a mains communication system for phase to neutral voltage not exceeding 250 V a.c. and a nominal current not exceeding 125 A, intended for household and similar fixed installation including residential, commercial and light industrial buildings. This standard also applies to ""plug-in filters"". These filters (see Figure 1) are used to set a suitable impedance, in the nominal frequency range of the mains signalling system, at any point of the low voltage mains network where a low impedance equipment is connected, in order to allow reliable operation of mains signalling system. These impedance filters can be used

DS/EN 50065-4-4:2003 history

• 2013 DS/ISO/IEC 7816-4:2013 Identification cards - Integrated circuit cards - Part 4: Organization, security and commands for interchange
• 2003 DS/EN 50065-4-4:2003 Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 4-4: Low voltage decoupling filter - Impedance filter