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| Chinese National Standard List: Communication network architecture |
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GB/T 13158-1991 Compatibility test procedures of clock and synchroni-zation equipment of digital switch introduced into di-gital network
Issued on: 1991-9-16 Translation Price(USD): 120.0 |
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GB 12048-1989 Requirements for clock and synchronization equipment used in the digital network
Issued on: 1989-01-02 Translation Price(USD): 100.0 |
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YDJ 13-1988 Temporary Technical Regulations for Engineering Design of Optical Fiber Digital Transmission System of Urban Local Telephone Network
Issued on: 1988-10-25 Translation Price(USD): 360.0 |
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GB/T 4110-1983 Pulse code modulation communication system hierarchy
Issued on: 1983-12-28 Translation Price(USD): 60.0 |
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