视频音频复用器SD-S690VA
二、产品特点：Product features：1、视频与音频信号同缆传输；
1, video and audio signal transmite in one coxial cable;
2、视频信号抗干扰设计；
2, video signal anti-interference design;
3、可在SYV75-5-1同轴电缆中传输600米距离；
3, The sigal can transmission distance of 600 metres in SYV75-5-1 coaxial cable ;
4、视频兼容PAL,NTSC,SECAM多种制式；
4, video format is compatible with PAL, NTSC, SECAM ;
5、图像清晰度高，可达4级以上效果；
5, High image definition, up more than level 4 effect;
6、防静电，同时涵盖隔离电路： 有效保护主控室设备不受外界静电干扰；
6、Anti-static, isolation circuit: it can protect of the main control room equipment without external electrostatic interference;
7、免调试，自适应： 只要在传输距离范围内，设备会自动调整自己的指标，从而达到最佳效果；
7、 free debugging, adaptive: as long as the propagation distance range, the device will automatically adjust their parameters, so as to achieve the best results;
