YD/T 651-1994
Quality grading criteria of PCM voice channel characteristics testers (English Version)

Standard No.

YD/T 651-1994

Language

Chinese, Available in English version

Release Date

1994

Published By

Professional Standard - Post and Telecommunication

Status

Withdraw 2009-12

Latest

YD/T 651-1994

Scope

This standard specifies the product quality level and quality level requirements for PCM voice channel characteristic testers. This standard is applicable to AA test type PCM voice channel characteristic testers, and also applies to A——D, D——A, D—— For D test type instruments, the quality rating will be assessed separately according to different types.

YD/T 651-1994 history

• 1994 YD/T 651-1994 Quality grading criteria of PCM voice channel characteristics testers