I-ETS 300 005 : AUG 91

Withdrawn

BUSINESS TELECOMMUNICATIONS (BT); TRANSMISSION CHARACTERISTICS AT 4-WIRE ANALOGUE INTERFACES OF A DIGITAL PRIVATE AUTOMATIC BRANCH EXCHANGE (PABX)

Withdrawn date

10-01-2000

Published date

01-12-2013

Publisher

European Telecommunications Standards Institute

1 Foreword
2 Scope
3 Related standards
4 Definitions
5 Four-wire interface specifications
  5.1 Characteristics of interfaces
  5.2 Characteristics of half connections
Annex A: Relative levels for M4 and K4 interfaces in dBr
Annex B: Impedance unbalance about earth in different
         European Administrations
Annex C: Single frequency noise (dBm0)
Annex D: Discrimination against out-of-band signals applied
         to the input interface: Signals below 300 Hz
Annex E: Nominal values for input impedance and return loss

Gives characteristics for: - 4-wire analogue interfaces (Type M4 and K4), - input and output connections with 4-wire analogue interfaces, and - half connections with 4-wire analogue interfaces.

Committee	BT 2
DocumentType	Miscellaneous Product
PublisherName	European Telecommunications Standards Institute
Status	Withdrawn

Standards	Relationship
DIN V I-ETS 300005:1992-03	Identical
PN I-ETS 300 005 : 2005	Identical
I.S. I-ETS 300 005:1992	Identical

ETR 063 : 20001	BUSINESS TELECOMMUNICATIONS (BT) - A SURVEY OF ANALOGUE ACCESSES TO THE PSTN NOT COVERED BY FINAL DRAFT prETS 300 001
I.S. I-ETS 300 004:1992	BUSINESS TELECOMMUNICATIONS (BT); TRANSMISSION CHARACTERISTICS AT 2-WIRE ANALOGUE INTERFACES OF A DIGITAL PRIVATE AUTOMATIC BRANCH EXCHANGE (PABX)
I.S. I-ETS 300 003:1992	BUSINESS TELECOMMUNICATIONS (BT); TRANSMISSION CHARACTERISTICS OF DIGITAL - PRIVATE AUTOMATIC BRANCH EXCHANGES (PABXS)