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BS 7940:1999

Analogue PSTN terminal support interface

Standard Details

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.

General Information

Status : Confirmed
Standard Type: Main
Document No: BS 7940:1999
Document Year: 1999
Pages: 28
  • Section Volume:
  • GBM23 Telecommunications (GMB23)

Life Cycle

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Confirmed
BS 7940:1999
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