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UNE-ETS 300452
BUSINESS TELECOMMUNICATIONS (BTC). SPECIAL QUALITY VOICE BANDWITH 4-WIre analogue leased line (A4S). Connection characteristics and network interface presentation.
Edition
1997-11-20
DIN EN 300449
Access and Terminals (AT) - Special quality voice bandwidth 2-wire analogue leased line (A2S) - Connection characteristics and network interface presentation (Endorsement of the English version EN 300449 V 1.2.1 (2001-07) as German Standard)
Edition
2002-01
DIN EN 300450
Access and Terminals (AT) - Ordinary and special quality voice bandwidth 2-wire analogue leased lines (A2O and A2S) - Terminal equipment interface (Endorsement of the English version EN 300450 V 1.2.1 (2001-07) as German Standard)
Edition
2002-01
DIN EN 300452
Access and Terminals (AT) - Special quality voice bandwidth 4-wire analogue leased line (A4S) - Connection characteristics and network interface presentation (Endorsement of the English version EN 300452 V 1.2.1 (2001-07) as German Standard)
Edition
2002-01
DIN EN 300448
Access and Terminals (AT) - Ordinary quality voice bandwidth 2-wire analogue leased line (A2O) - Connection characteristics and network interface presentation (Endorsement of the English version EN 300448 V 1.2.1 (2001-07) as German Standard)
Edition
2002-01
DIN EN 300451
Access and Terminals (AT) - Ordinary quality voice bandwidth 4-wire analogue leased line (A4O) - Connection characteristics and network interface presentation (Endorsement of the English version EN 300451 V 1.2.1 (2001-07) as German Standard)
Edition
2002-01
DIN EN 300453
Access and Terminals (AT) - Ordinary and special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S) - Terminal equipment interface (Endorsement of the English version EN 300453 V 1.2.1 (2001-07) as German Standard)
Edition
2002-01
DIN EN 3475-812
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 812: Return loss (VSWR); German and English version EN 3475-812:2009
Edition
2010-09
DIN EN ISO 25178-606
Geometrical product specification (GPS) - Surface texture: Areal - Part 606: Nominal characteristics of non-contact (focus variation) instruments (ISO 25178-606:2015); German version EN ISO 25178-606:2015
Edition
2016-12
DIN ISO 2631-5
Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 5: Method for evaluation of vibration containing multiple shocks (ISO 2631-5:2018, Corrected version 2022-01)
Edition
2022-09
