现行

ITU-T G.744

Second order PCM multiplex equipment operating at 8448 kbit/s
以8448 kbit/s速度运行的二阶PCM多路复用设备

1988-11-25

现行

ITU-T G.745

Second order digital multiplex equipment operating at 8448 kbit/s and using positive/zero/negative justification
以8448 kbit/s速度运行并使用正/零/负对正的二阶数字多路复用设备

1988-11-25

现行

GB/T 7254-1995

8448 kbit/s正码速调整二次群数字复用设备技术要求和测试方法
Performanceand methods of the second order digital multiplex equipment operating at 8448 kbit/s and using positive justification

1995-04-06

现行

ITU-T G.747

Second order digital multiplex equipment operating at 6312 kbit/s and multiplexing three tributaries at 2048 kbit/s
以6312 kbit/s速度工作的二阶数字多路复用设备 以2048 kbit/s速度多路复用三条支路

1988-11-25

现行

ITU-T G.743

Second order digital multiplex equipment operating at 6312 kbit/s and using positive justification
以6312 kbit/s速度运行并使用正对正的二阶数字多路复用设备

1988-11-25

现行

ITU-T G.746

Characteristics of second order PCM multiplex equipment operating at 6312 kbit/s
以6312 kbit/s速度运行的二阶PCM多路复用设备的特性

1988-11-25

现行

ITU-T G.755

Digital multiplex equipment operating at 139 264 kbit/s and multiplexing three tributaries at 44 736 kbit/s
数字多路复用设备以139 264 kbit/s的速度工作 并以44 736 kbit/s的速度多路复用三条支路

1988-11-25

现行

ITU-T G.736

Characteristics of a synchronous digital multiplex equipment operating at 2048 kbit/s
2048kbit/s同步数字复用设备的特性

1993-03-12

现行

ITU-T G.734

Characteristics of synchronous digital multiplex equipment operating at 1544 kbit/s
1544kbit/s同步数字复用设备的特性

1988-11-25

现行

ITU-T G.752

Characteristics of digital multiplex equipments based on a second order bit rate of 6312 kbit/s and using positive justification
基于6312 kbit/s二阶比特率和正对齐的数字复用设备的特性

1988-11-25

现行

ITU-T G.735

Characteristics of primary PCM multiplex equipment operating at 2048 kbit/s and offering synchronous digital access at 384 kbit/s and/or 64 kbit/s
以2048 kbit/s速度运行并以384 kbit/s和/或64 kbit/s速度提供同步数字访问的主PCM多路复用设备的特性

1988-11-25

现行

ITU-T G.738

Characteristics of primary PCM multiplex equipment operating at 2048 kbit/s and offering synchronous digital access at 320 kbit/s and/or 64 kbit/s
以2048 kbit/s速度运行并以320 kbit/s和/或64 kbit/s速度提供同步数字访问的主PCM多路复用设备的特性

1988-11-25

现行

GB/T 9405-1995

34368kbit/s 正码速调整三次群数字复用设备技术要求和测试方法
Performance and test methods of the third order digital multiplex equipment operating at 34368 kbit/s and using positive justification

1995-04-06

现行

ITU-T G.753

Third order digital multiplex equipment operating at 34 368 kbit/s and using positive/zero/negative justification
以34368kbit/s速度运行并使用正/零/负对正的三阶数字多路复用设备

1988-11-25

现行

ITU-T G.754

Fourth order digital multiplex equipment operating at 139 264 kbit/s and using positive/zero/negative justification
四阶数字多路复用设备 以139 264 kbit/s的速度运行 使用正/零/负对正

1988-11-25

现行

ITU-T G.751

Digital multiplex equipments operating at the third order bit rate of 34 368 kbit/s and the fourth order bit rate of 139 264 kbit/s and using positive justification
以34368kbit/s的三阶比特率和139264kbit/s的四阶比特率运行并使用正对正的数字多路复用设备

1988-11-25