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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 6879-1995 |
Performance andtest methods of the 30 channels Pulse code modulation multiplex equipment at 2048 kbit/s 2048kbit/s 30路脉码调制复用设备技术要求和测试方法 |
China National Standards Pulse code modulation |
 English PDF |
| GB/T 13859-1992 |
Performance andtest methods of 30-channel Pulse code modulation drop/insert equipment at 2048kbit/s 2048kbit/s 30路脉码调制分插设备技术要求与测试方法 |
China National Standards Pulse code modulation |
English PDF |
| GB/T 7610-1987 |
Characteristics of Pulse code modulation for voice-frequencies 音频脉冲编码调制特性 |
China National Standards Pulse code modulation |
English PDF |
| GB/T 4110-1983 |
Pulse code modulation communication system hierarchy 脉冲编码调制通信系统系列 |
China National Standards Pulse code modulation |
English PDF |
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