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| International Standard Category: Other fibre optic equipment |
YD/T 657-1994 Optical transmitter and receiver operating at 139264kbit/s Criteria for quality grading
13926Kbit/s光端机质量分等标准 ;
| Category No.: | 33.180.99 | Valid Status: | abolished |
| Issued Organization: | Ministry of Posts and Telecommunications | Issued Date: | 1994-05-21 |
| Implemented Date: | 1994-5-21 | Abolished Date: | 2009-12-01 |
| Superseded Standard.: | Superseded Date: |
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