YD/T 671-1994 Quality grading criteria of second order digital multiplex equipment operating at 8448 kbit/s and using positive justification (English Version)
Professional Standard - Post and Telecommunication
Status
2009-12
Latest
YD/T 671-1994
Scope
This standard specifies the product quality level and quality level requirements for 8448kbit/s positive code rate adjusted secondary group digital multiplexing equipment. This standard applies to secondary group digital multiplexing equipment and is the basis for assessing secondary group digital multiplexing equipment. This standard does not apply to dry product sorting.
YD/T 671-1994 history
1994YD/T 671-1994 Quality grading criteria of second order digital multiplex equipment operating at 8448 kbit/s and using positive justification