GB/T 3971.3-1983
Active
GB/T 3972-1992
Abolished
National standards
GB/T 3972-1992 Relays for crossbar telephone switching systems
GB/T 3972-1992 Relays for crossbar telephone switching systems
Basic Information
Standard Code:
GB/T 3972-1992
Standard Type:
National standards
Standard Status:
Abolished
is_force_gb:
no
CCS Name:
Telephone communication equipment
ICS Name:
Telecommunications system
Publish Date:
1992-10-06
Implement Date:
1993-05-01
Publisher:
The National Technical Supervision Bureau
Technical Committee:
The Telecommunications Transmission Research Institute of the Ministry of Posts and Telecommunications
Pages:
45 pages
Development Information
Drafting Units:
Shanghai Telephone Equipment Factory of the Ministry of Posts and Telecommunications
Drafting Persons:
Gao Jinxin, Chen Peizhen, Cao Wenyan, and Li Yongdi
Replace the following standards
GB 3972-1983
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Abolished
GB/T 3974-1983 Telephone transmission interference allowances for long-distance high-capacity analogue microwave communication systems
GB/T 5581-1985
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GB/T 5581-1985 Specification and measuring method of frequency-modulated voice-frequency telegraph set for a modulation rate of 75 Bauds with channels spaced at 180 Hz
GB/T 13722-1992
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GB/T 13722-1992 Performance requirements and testing methods for power supplies used in the mobile communication
GB/T 15410-1994
Abolished
GB/T 15410-1994 Conformance test and procedures for the Chinese teletex system and terminal
GB/T 15840-1995
Abolished