摘要
季节更替带来气温变化,引起了接地系统连接点出现松动。春季天气干燥导致接地电阻增大,周围环境存在过量的电磁辐射,这些因素影响了基站2M中继信号的解调质量,导致基站季节性出现E1/T1误码超限和时钟参考源异常告警。创新性地提出了桥接设备之间的屏蔽体,使它们的机框具有相同的电位,提高设备之间传输信号判别的准确率,优化中继信号的解调质量,以应对楼顶简易机房和室内分布等不便于低电阻大载流量接地的特殊环境。
The temperature changes lead to loosening of the grounding system,earthing resistance increase with increases of the dry weather.The base station RF unit has a radiation overdose problem.These factors affect the modulation and demodulation quality of 2M relay signal in base station,cause E1/T1 error code overrun of base station seasonally and clock reference source abnormal alarm.Innovatively put forward the shield between bridging devices,Make them have the same potential,Improve the accuracy of signal discrimination between devices,optimizing the modulation and demodulation quality of relay signal.In order to deal with the special environment,such as simple machine room and indoor distribution,which is not convenient for low resistance and large current carrying grounding.
作者
巩汉春
王炳华
张新
GONG Hanchun;WANG Binghua;ZHANG Xin(Chinaunicom Qingdao Branch,Jiaozhou 266300,China;Beijing Fibrlink Communications Co.,Ltd.,Beijing 100071,China)
出处
《通信电源技术》
2021年第2期199-202,共4页
Telecom Power Technology
