| 单词 | Table G-1: G-Series Recommendations |
| 释义 | Table G-1: G-Series Recommendations Recommendation Description G.168 Digital network echo cancellers G.169 Automatic level control devices G.651 Characteristics of a 50/125 µm multimode graded index optical fibre cable G.652 Characteristics of a single-mode optical fibre and cable G.653 Characteristics of a dispersion-shifted single-mode optical fibre and cable G.654 Characteristics of a cut-off shifted single-mode optical fibre and cable G.655 Characteristics of a non-zero dispersion-shifted single-mode optical fibre and cable G.665 Generic characteristics of Raman amplifiers and Raman amplified subsystems G.694.1 Spectral grids for WDM applications: DWDM frequency grid G.694.2 Spectral grids for WDM applications: CWDM wavelength grid G.702 Digital hierarchy bit rates G.703 Physical/electrical characteristics of hierarchical digital interfaces G.704 Synchronous frame structures used at 1544, 6312, 2048, 8448 and 44,736 kbit/s hierar- chical levels G.705 Characteristics of PDH equipment functional blocks G.711 Pulse code modulation (PCM) of voice frequencies G.722 7 kHz audio-coding within 64 kbit/s G.722.1 Low-complexity coding at 24 and 32 kbit/s for hands-free operation in systems with low frame loss 74570c07.qxd 9/11/07 12:21 PM Page 213 |
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