
Analogue PSTN terminal support interface.
NORMA vydaná dňa 15.10.1999
Označenie normy: BS 7940:1999
Dátum vydania normy: 15.10.1999
Počet strán: 28
Približná hmotnosť: 84 g (0.19 libier)
Krajina: Britská technická norma
Kategória: Technické normy BS
This standard applies to apparatus having an interface for the connection of Terminal Equipment (T.E.) intended for a Direct Exchange Line (D.E.L.) and specifies the performance requirements of the interface which make it appear to the attached T.E. that is interworking with a single 2-wire analogue PSTN D.E.L. Status: Confirmed