GB/T 13158-1991 Compatibility test procedures of clock and synchroni-zation equipment of digital switch introduced into di-gital network (English Version)
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 13158-1991
Scope
This standard specifies the synchronization performance compatibility test method for the digital switch clock and synchronization equipment entering the digital network. This standard applies to the synchronization performance compatibility test between the newly installed digital switchboard and the original digital switchboard in the digital network.
GB/T 13158-1991 history
1991GB/T 13158-1991 Compatibility test procedures of clock and synchroni-zation equipment of digital switch introduced into di-gital network