| 1. | Specifications for synchronous digital hierarchy multiplex equipment
同步数字体系sdh复用设备技术要求 |
| 2. | Generic specification for 64 32kbit s time division multiplex equipments
64 32kbit s时分复用设备通用规范 |
| 3. | Digital multiplex equipment
数字复用设备 |
| 4. | Methods of measurement for electronic performance of 64kbit s time division multiplex equipments
64kbit s时分复用设备电性能测量方法 |
| 5. | Performance and test methods of the integrated multiplex equipment using in the digital channel
在数字信道上使用的综合复用设备进网技术要求及监测方法 |
| 6. | Performance and test methods of 30 channels pulse code modulation multiplex equipment at 2048 kbit s
2048 kbit s 30路脉码调制复用设备技术要求和测试方法 |
| 7. | Performance and test methods of the second order digital multiplex equipment operating at 8448 kbit s and using positive justification
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 |
| 8. | From these figures we can see that the use of 155 mbits trunk ports in the switches simplifies the interface between the switching and transmission networks , reduces lots of multiplex equipment of 2 mbits tributary channels in the transmission network
图2交换机间155mbits端口互通类型二从图中可看出，交换中继端口采用155mbits后，交换和传输的接口简单了很多。 |
| 9. | Moreover , look at the transmission machine room . the use of the 2 mbits interface requires a complete set of ddfs whereas the 155 mbits interface only requires a coaxial cabinet without the use of 2 mbits multiplex equipment , greatly reducing the occupancy of machine room space
再来看一下传输机房，采用2mbits接口，需要整列的数字配线架，而采用155mbits接口，只需要一个同轴柜，在传输设备一侧也不再需要2mbits的复用器设备，大大的减少了对传输机房的占用。 |
