GOST 27912-1988 Automatic calling equipment for telegraph communication. Requirements for procedure interaction with external equipment and channel communications
GOST 18145-1981 Circuits at the interface C2 of the data transmission equipment with the terminals in the consequent data input-output. Nomenclature and technical requirements
GOST 22933-1988 Unit automated communication system. Common requirements of subscriber units for interaction with AT-50 and PD-200 networks
GOST 22934-1988 Unit automated communication system. Common requirements of interaction signals on subscriber link of AT-50 and PD-200 networks
GOST 22935-1988 Unit automated communication system. Common requirements to interaction procedures of subscriber units with AT-50 and PD-200 networks
GOST 22936-1978 System, communication, automatic, united. Terminals for telegraphic communication and data transfering. Procedures of interaction with AT-50 and PD-200 systems
GOST 27912-1988 history
1988GOST 27912-1988 Automatic calling equipment for telegraph communication. Requirements for procedure interaction with external equipment and channel communications