The Problem of Power Supply of Urban and Rural Telephone Exchanges When Installing the Exchanges of Different Types at One Site the Experience of Solving these Problems at the Enterprises of the Russian Ministry of Communication

Extension of existing communication entities is often confronted with power supply problems relative to telecommunication equipment with different power supply requirements. several off-line power plants for a single entity are not reasonable in most cases. What are the ways to resolve the problem? This paper answers to this and some other questions. It presents compatibility analysis for power circuits of most popular exchange types, experimental results, examples of power supply systems arranged on Russia communication plants.