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GB/T 7611-2001
Characteristics of the electrical interface at hierarchical bit rate for digital network
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YD 5044-1997
Provisional Standards for Check and Accept SDH Equipments Installation of Optical Fibre Cable Transmission Project
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YDN 037-1997
SDH Management Network
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YDN 117-1999
SDH Network Planning
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YD/T 631-1993
2/34Mbit/s Digital Hopping Equipment Spec and Test methods
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YD/T 655-1994
34 368 kb/s optical terminals quality standard
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YD/T 767-1995
SDH specs
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YD/T 1016-1999
Technical condition for PDH optical line terminals used in access network
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YD/T 1060-2000
Technical
requirements of optical wavelength division multiplexing (WDM)system_32×2.5Gbit/s part
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YD/T 1143-2001
Technical requirements of optical wavelength
division multiplexing (WDM) system --16×10Gb/s、32×10Gb/s parts
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