GOST 21655-1987 Channels and links of primary trunk network within all-union automatic communication system. Electric parameters and methods of measurement
This standard applies to voice frequency channels, primary, secondary and tertiary network paths and primary, secondary
GOST 21655-1987 Referenced Document
GOST 5237-1983 Electric communication equipment. Supply voltages and methods of measurement
GOST 21655-1987 history
1987GOST 21655-1987 Channels and links of primary trunk network within all-union automatic communication system. Electric parameters and methods of measurement