I.S. I-ETS 300 003:1992
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
BUSINESS TELECOMMUNICATIONS (BT); TRANSMISSION CHARACTERISTICS OF DIGITAL - PRIVATE AUTOMATIC BRANCH EXCHANGES (PABXS)
Hardcopy , PDF
07-23-2013
English
01-01-1992
1 Foreword
2 Scope
3 Related standards
4 Definitions
4.1 Test points, PABX input and output and
half connections
4.2 Relative levels
4.3 Transmission loss
4.4 Loss distortion with frequency
4.5 Digital parameters
4.6 Characteristics of interfaces
4.7 Voice frequency parameters of a connection between
two interfaces of the same PABX
5 Voice frequency characteristics specified with reference
to the entire connection (between two interfaces of the
same PABX)
5.1 Measurement conditions
5.2 Round trip delay
5.3 Weighted noise
5.4 Total distortion including quantizing distortion
5.5 Crosstalk
5.6 Discrimination against out-of-band signals applied
to the input interface
5.7 Spurious out-of-band signals received at the
output interface
5.8 Echo and stability
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