Selector unit of central and unit for centralized observation of the service of a telecommunication network. (Machine-translation by Google Translate, not legally binding)

摘要

A central unit and unit selector apparatus for centralized observation of the service of a telecommunication network that executes a part of a centralized observation procedure (spanish patent no. 404,395), characterized by performing a centralized control of the observation of subscribers assigned to telephone units of distant centrals; connect to said remote centrals by means of 4 wires, with a maximum of 5 centrals, each of which can be constituted up to 6 units; register, optionally, the information on magnetic tape or pour it directly on a reading device, controlling the recorder; observe interchangeably subscribers of rotary-type or cross-bar stations; transmit and receive all the tones used in a telephone communication, including conversation; simulate, or not, the hanging of the telecontrolled subscriber without affecting the communication; retain, or not, under continuous observation to any remotely controlled subscriber. (Machine-translation by Google Translate, not legally binding)