Due to the operation characteristics of on-line communication equipment, the communication power supply has to be replaced.
由于在线通信设备工作特性，即必须带电更换通信电源。
Method: simple pull alone alone temporarily pull a line to the equipment, so can be used for cleaning is not caused by the wrong wiring communication.
独自拉线法：独自简便暂时拉一条线到设备，这么能够用来扫除是不是是布线引起了通讯毛病。
Suitable for the microwave equipment and body of the digital communication system and join the body in the cable or the micro-strip line frequently in the loop frequently.
适用于微波设备和数字通信系统的射频迴路中连接射频电缆或微带线。
Shanghai Jiahui Machinery equipment co., Ltd is the manufacturer which design and produce equipment for production line of roadway lighting pole, electric power transmission pole, communication pole.
上海佳惠机械设备有限公司是从事设计、生产大型电力杆、通讯杆、路灯杆等生产流水线中配套设备的专业生产厂家。
A digital trunked communication system is applied in Guangzhou Metro Line 2. The composition and merit points of the system and the functions of its principal equipment is introduced.
介绍了数字集群系统在广州地铁二号线的应用情况，从系统构成、主要设备功能及优点等方面进行了介绍。
The communications equipment, including EPON communications equipment (OLT, ONU) and power line carrier communication equipment.
通信设备主要包括EPON通讯设备(olt、onu)及电力线载波通信机。
The communications equipment, including EPON communications equipment (OLT, ONU) and power line carrier communication equipment.
通信设备主要包括EPON通讯设备(olt、onu)及电力线载波通信机。
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