After the laying of the broadcasting system line and the installation of the cabinet broadcasting equipment, the line connection in the broadcasting machine room is very important in the whole installation process of the public broadcasting system. On the one hand, it is necessary to ensure the correctness of the connection logic, on the other hand, it is necessary to ensure the reliability of the connection, which should be paid enough attention to. Often, some equipment contact caused by poor connection is not met Good, noisy, etc. The following are six precautions in the connection of public address cabinet:
1) Select high-quality connectors and wires. If we want to make wire rod on site, we must ensure that the electric soldering iron has enough power and heat when welding various plugs, and we must prepare special wire rod making tools, so as to ensure the reliability of wire rod;
2) Shorten the length of connecting wire as much as possible, reduce the joints and optimize the intermediate links;
3) The installed connector should be put in by hand to see whether the tightness is appropriate;
4) Cables such as digital cable, analog cable, speaker cable and power line shall be arranged separately; weak current signal shall be laid separately from strong current signal line, and the interval between strong and weak current cables shall not be less than 30 cm;
5) After the broadcasting equipment is connected, label all cables and signal wires. In a few months, a few years, when repairing and maintaining the broadcasting system, the mark will show its usefulness;
6) The cables shall be bundled by category to make them stable and beautiful. No curtain connection.