| 1. | Analog trunk circuit tac
模拟中继电路 |
| 2. | Technical requirements of increasing trunk capacity for inter - public telecom network
公用电信网间互联中继电路扩容技术要求 |
| 3. | Owing to the thick line bundle between tandem switches , 126 2 mbs trunk circuits are needed
由于汇接交换机之间的线束比较大，需要126条2mbits中继电路。 |
| 4. | Before 1984 , the great majority of the trunk circuits in the city were copper cable , with one copper wire per circuit
在此以前的中继电路绝大多数是铜线中继电缆，一对铜线一条电路。 |
| 5. | The stm - 1 interface will first be led in through tandem points where large volume of traffic is assembled , then gradually applied to large nodes that require over 30 2mbits trunks
交换机的stm - 1接口首先会在话务量集中的汇接节点引入，然后逐步在需要30多条2mbits中继电路以上的大型节点推广应用。 |
| 6. | On the other hand , in networking trunk circuits , we should consider using dual coaxial cable connections as many as possible via different transmission equipment , and enable the trunk circuits of a given switch to be shared by the two routes
另一方面，在中继电路的组网上，也要考虑尽可能采用双同轴电缆连接、经不同传输设备的连接方式，将到某一交换机的中继电路分担在这两条路由上。 |
| 7. | The multimedia network has two layers and is composed of main net and access net . the main net maintains the network conlection of atm net stm - 16 relay circuit . access net maintains the double - star shaped structure and has 622m / 155m relay circuit
所设计并实现的宽带多媒体网采用两层结构，由骨干网络和接入网络组成，其中骨干网保持现有atm网stm - 16中继电路的全网状网连接，接入网的各市、州节点保持以双622m 155m中继电路分别与骨干节点连接的双星型结构。 |
| 8. | Because of radio wave propagating along the ducts with enhanced fields on the order of the free - space field , the problems of the co - channel interference are more complicate for communication systems with the results of intersystem interference and the formation of other system , and therefore affecting the determination of the coordination distances or the optimization of the distribution and separation of delay , and for surveillance system such as radar system the problems can be radar holes or the extensions of detect range
对于通信电路，它使系统间的相互干扰问题变得复杂，既可能干扰其他系统又可能形成另外的系统，从而影响系统的有关参数如中继电路的最佳组合(分布、间隔)和协调距离，对于探测系统产生的则是雷达空洞、超视距探测等问题。这些问题对相关无线电系统特别是军事应用系统可能是致命的，因而以波导传播为代表的反常传播特性研究受到极大重视。 |
| 9. | As a result , at all these connection points , the two coaxial cables are connected to different transmission equipment , sharing the traffic load from the tandem switch to a given end exchange , with half of the respective trunk circuits put into use , ensuring network safety . for such connectivity , see figure 4
因此，在所有的同轴电缆连接处，都采用两条同轴电缆接到不同的传输设备的方法，将汇接交换机到某一端局的话务量在这两条同轴连接上进行负荷分担，中继电路各开一半，从而保证网络的安全性。 |
| 10. | It is necessary to appropriately combine and rationally plan the switching trunks in the same direction , and combine the trunk circuits in different direction into a stm - 1 port and determine the way to network the trunk circuits in the transmission network according to the trunk direction and taking into account the structure of the transmission network
此时，需要将同方向的交换中继进行适当的组合与合理规划，根据中继方向，结合传输网络的结构，将不同方向的中继电路组合在stm - 1端口中，并确定中继电路在传输网中的组网方式。 |
