Modernised AVF headquarters communication table

The modernised communication desk of the AVF headquarters, hereinafter referred to as the product, is a technical device that provides communication in an emergency or emergency situation of the head of the AVR headquarters with the train dispatcher and with the subscribers of the local telephone network of the metro and has the possibility of installation both on the station territory and in the tunnel for a minimum amount of time. Power supply voltage: from communication line, V, in the range of 18-30; from car battery, V, 10-14; nominal voltage of equipment supply, V, -24. Power consumption, W, not more than 10; Number of telephone lines of AHS, pcs. - 1; Number of dispatch communication lines, pcs. - 1; Maximum length of the communication line with three coils in series, m, not more than 500. Metal coil NT381 for cable, pcs. - 3; Recommended type of applied cable: Number of conductors , pcs. -10; Conductor cross-section, mm2 - 0,25; Cable diameter, mm - 8,2. The maximum level of the output signal in lin...