Remote Control Universal RN1088
In a typical communication system to reduce RF radio losses, related equipment should be mounted  as close as possible to the antenna ; but,  many antennas are located around the mountain and high building and settlement of operators in these situation will be hard and sometimes impossible.
This device can connect to transmitter and receiver equipment at the nearest point to these installations via four cables.
It has military applications such as surviving operators that are located near the installations.
Remote control includes two main sections called Station which is placed near the operator interface and Home section. These two parts can be installed up to five kilometers away from each other and maintain their relationship through the four-string cable.