Our company is a manufacturer and exporter of Ethernet Network System which includes Ethernet Transmitter, Ethernet Network System, Oil Pipeline, Water Pipeline Monitoring. These systems are designed for cable network system and network technician to diagnostic network problem. The reason behind their wide usage is Ethernet is easy to implement, understand and helps low cost network implementation. Also, it provides high flexibility in terms of topologies which are allowed. Moreover, our systems have a built-in LAN cable mapping function, to diagnostic LAN cable condition and to find defect point or broken connection.